Journal of Biogeography最新文献_第10页

A Revision to the Distribution of Plumage Polymorphism in the Red-Tailed Hawk (Buteo jamaicensis) 红尾鹰（Buteo jamaicensis）羽毛多态性分布的修正

IF 3.4 2区环境科学与生态学 Q2 ECOLOGY

Journal of Biogeography

Pub Date : 2024-09-12 DOI: 10.1111/jbi.15010

Bryce W. Robinson, Nicole M. Richardson, Nick A. Alioto, Frank J. Nicoletti, Alexandra M. Pesano, Mei T. Rao, Brian L. Sullivan

Aim

The high proportion of plumage polymorphism in raptor species presents exciting research potential. Unfortunately, fundamental knowledge gaps remain that limit our ability to fully understand the development and role of plumage polymorphism in this group and extend those insights to vertebrates as a whole. We report data that fills one such knowledge gap in the red-tailed hawk (Buteo jamaicensis) that will enable investigations to uncover factors that influence the biogeography of plumage polymorphism in the species and raptors more generally.

Location

North America.

Taxon

Buteo jamaicensis (red-tailed hawk).

Methods

We captured and outfitted four dark and 22 light morphs with GPS/GSM satellite transmitters during the non-breeding season in the Great Lakes region of North America to assess their breeding provenance and behaviours. We calculated 95% AKDE nesting home ranges during an 80-day period meant to capture the incubation and brood-rearing periods and compared home ranges by age and sex to contextualise movements.

Results

Our results indicate that dark types nest in eastern Canada and belong to the same breeding population as the light individuals tagged in our study, extending the known distribution of plumage polymorphism in the species approximately 1500 km eastward into eastern Canada.

Main Conclusions

This revised distribution of plumage polymorphism is a critical first step for understanding the biogeography of plumage polymorphism and assessing drivers of within-population trait diversity in this species, and predatory vertebrates more generally.

目的猛禽物种的羽色多态性比例很高，具有令人兴奋的研究潜力。遗憾的是，基本的知识缺口仍然存在，这限制了我们全面了解该物种羽色多态性的发展和作用，以及将这些见解推广到整个脊椎动物的能力。我们报告的数据填补了红尾鹰（Buteo jamaicensis）的这一知识空白，这将有助于研究揭示影响该物种以及更普遍的猛禽羽色多态性生物地理学的因素。方法我们在北美五大湖区的非繁殖季节捕获了4只深色形态和22只浅色形态的红尾鹰，并为它们安装了GPS/GSM卫星发射器，以评估它们的繁殖来源和行为。我们计算了80天内95% AKDE的筑巢范围，以捕捉孵化和育雏期，并比较了不同年龄和性别的筑巢范围，以确定其运动背景。结果我们的结果表明，深色类型在加拿大东部筑巢，与我们研究中标记的浅色个体属于同一繁殖种群，将已知的该物种羽色多态性分布向东扩展了约1500公里，进入加拿大东部。主要结论修订羽色多态性的分布是了解羽色多态性生物地理学和评估该物种以及更普遍的食肉脊椎动物种群内性状多样性驱动因素的关键性第一步。

{"title":"A Revision to the Distribution of Plumage Polymorphism in the Red-Tailed Hawk (Buteo jamaicensis)","authors":"Bryce W. Robinson, Nicole M. Richardson, Nick A. Alioto, Frank J. Nicoletti, Alexandra M. Pesano, Mei T. Rao, Brian L. Sullivan","doi":"10.1111/jbi.15010","DOIUrl":"10.1111/jbi.15010","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>The high proportion of plumage polymorphism in raptor species presents exciting research potential. Unfortunately, fundamental knowledge gaps remain that limit our ability to fully understand the development and role of plumage polymorphism in this group and extend those insights to vertebrates as a whole. We report data that fills one such knowledge gap in the red-tailed hawk (<i>Buteo jamaicensis</i>) that will enable investigations to uncover factors that influence the biogeography of plumage polymorphism in the species and raptors more generally.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>North America.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p><i>Buteo jamaicensis</i> (red-tailed hawk).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We captured and outfitted four dark and 22 light morphs with GPS/GSM satellite transmitters during the non-breeding season in the Great Lakes region of North America to assess their breeding provenance and behaviours. We calculated 95% AKDE nesting home ranges during an 80-day period meant to capture the incubation and brood-rearing periods and compared home ranges by age and sex to contextualise movements.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Our results indicate that dark types nest in eastern Canada and belong to the same breeding population as the light individuals tagged in our study, extending the known distribution of plumage polymorphism in the species approximately 1500 km eastward into eastern Canada.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>This revised distribution of plumage polymorphism is a critical first step for understanding the biogeography of plumage polymorphism and assessing drivers of within-population trait diversity in this species, and predatory vertebrates more generally.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"51 12","pages":"2538-2545"},"PeriodicalIF":3.4,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Taxonomic, Functional and Phylogenetic Beta Diversity of Upland Forest Birds in the Amazon: The Relative Importance of Biogeographic Regions, Climate and Geographic Distance 亚马逊高地森林鸟类的分类、功能和系统发育 Beta 多样性：生物地理区域、气候和地理距离的相对重要性

IF 3.4 2区环境科学与生态学 Q2 ECOLOGY

Journal of Biogeography

Pub Date : 2024-09-12 DOI: 10.1111/jbi.15006

Sara Miranda Almeida, Cristian Dambros, Leandro da Silva Duarte, Pablo Cerqueira, Leandro Juen, Marcos Pérsio Dantas Santos

<div> <section> <h3> Aim</h3> <p>We address the relative importance of biogeographic regions (areas of endemism), regional climate and spatial factors on taxonomic, functional and phylogenetic beta diversity of bird assemblages in upland <i>terra-firme</i> forests in the Amazon.</p> </section> <section> <h3> Location</h3> <p>Amazon biome.</p> </section> <section> <h3> Taxon</h3> <p>Birds.</p> </section> <section> <h3> Methods</h3> <p>We gathered 27,498 occurrence records of 873 bird species for 115 bird assemblages distributed in all nine biogeographic regions delimited by the major Amazonian rivers. Only data from studies surveying whole communities with standard sampling methods and exhaustive sampling effort were included. We partitioned the fractions of taxonomic, functional and phylogenetic beta diversity explained by climate, biogeographic regions, spatial factors and the variation shared between them.</p> </section> <section> <h3> Results</h3> <p>Across the entire Amazon, we found higher total taxonomic (0.68 ± 0.10) than phylogenetic (0.46 ± 0.08) β-diversity, and low functional β-diversity (0.34 ± 0.08). Biogeographic regions showed the highest unique contributions explaining taxonomic and phylogenetic β-total (7% and 5%, respectively) and turnover components (7% of β-jtu taxonomic, 7% of β-jtu phylogenetic), but accounted for only 2% of total functional β-diversity and trait turnover. Climatic variables explained slightly more trait nestedness (5%) compared with species and lineage turnover (3% each). Species composition was clearly distinct between biogeographical regions limited by the Amazon River, but support for the effect of other rivers was mixed.</p> </section> <section> <h3> Main Conclusions</h3> <p>Our study highlights the significant influence of biogeographic regions and climate on species composition in the Amazon. However, our findings also suggest that the Amazon River exerts a more pronounced impact on species distribution compared with other major Amazonian rivers. Species turnover across biogeographical regions is particularly evident at the species level, with minor effects observed in functional traits, suggesting that taxonomic turnover is driven mainly by functionally redundant species. In addition, recent diversification events, occurring predominantly at the tips of the phylogeny without substantial turnover at deeper nodes, are likely responsible for the patchy distribution of species across Amazonia.</p> </section>

目的我们研究了生物地理区域（特有地区）、区域气候和空间因素对亚马逊高地杉木林中鸟类群落的分类、功能和系统发育β多样性的相对重要性。方法我们收集了分布在亚马逊主要河流所划定的所有九个生物地理区域的 115 个鸟类群落中 873 种鸟类的 27498 条出现记录。只有采用标准取样方法和详尽取样工作对整个群落进行调查的研究数据才被包括在内。我们对由气候、生物地理区域、空间因素以及它们之间的共同变化所解释的分类学、功能和系统发育β多样性的比例进行了划分。生物地理区域在解释分类学和系统发生学的 β 总量（分别为 7% 和 5%）和周转率成分（β-jtu 分类学的 7%，β-jtu 系统发生学的 7%）方面的独特贡献最大，但只占功能 β 多样性和性状周转率总量的 2%。气候变量对性状嵌套性的解释（5%）略高于物种和种系更替（各占 3%）。物种组成在受亚马逊河限制的生物地理区域之间明显不同，但对其他河流影响的支持则参差不齐。然而，我们的研究结果还表明，与亚马逊河的其他主要河流相比，亚马逊河对物种分布的影响更为明显。跨生物地理区域的物种更替在物种水平上尤为明显，功能特征的影响较小，这表明分类更替主要是由功能冗余物种驱动的。此外，最近的物种多样化事件主要发生在系统发育的顶端，而没有在更深的节点发生实质性的更替，这可能是亚马逊河流域物种分布不均的原因。

{"title":"Taxonomic, Functional and Phylogenetic Beta Diversity of Upland Forest Birds in the Amazon: The Relative Importance of Biogeographic Regions, Climate and Geographic Distance","authors":"Sara Miranda Almeida, Cristian Dambros, Leandro da Silva Duarte, Pablo Cerqueira, Leandro Juen, Marcos Pérsio Dantas Santos","doi":"10.1111/jbi.15006","DOIUrl":"10.1111/jbi.15006","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>We address the relative importance of biogeographic regions (areas of endemism), regional climate and spatial factors on taxonomic, functional and phylogenetic beta diversity of bird assemblages in upland <i>terra-firme</i> forests in the Amazon.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Amazon biome.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Birds.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We gathered 27,498 occurrence records of 873 bird species for 115 bird assemblages distributed in all nine biogeographic regions delimited by the major Amazonian rivers. Only data from studies surveying whole communities with standard sampling methods and exhaustive sampling effort were included. We partitioned the fractions of taxonomic, functional and phylogenetic beta diversity explained by climate, biogeographic regions, spatial factors and the variation shared between them.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Across the entire Amazon, we found higher total taxonomic (0.68 ± 0.10) than phylogenetic (0.46 ± 0.08) β-diversity, and low functional β-diversity (0.34 ± 0.08). Biogeographic regions showed the highest unique contributions explaining taxonomic and phylogenetic β-total (7% and 5%, respectively) and turnover components (7% of β-jtu taxonomic, 7% of β-jtu phylogenetic), but accounted for only 2% of total functional β-diversity and trait turnover. Climatic variables explained slightly more trait nestedness (5%) compared with species and lineage turnover (3% each). Species composition was clearly distinct between biogeographical regions limited by the Amazon River, but support for the effect of other rivers was mixed.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Our study highlights the significant influence of biogeographic regions and climate on species composition in the Amazon. However, our findings also suggest that the Amazon River exerts a more pronounced impact on species distribution compared with other major Amazonian rivers. Species turnover across biogeographical regions is particularly evident at the species level, with minor effects observed in functional traits, suggesting that taxonomic turnover is driven mainly by functionally redundant species. In addition, recent diversification events, occurring predominantly at the tips of the phylogeny without substantial turnover at deeper nodes, are likely responsible for the patchy distribution of species across Amazonia.</p>\u0000 </section>\u0000 ","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"51 12","pages":"2526-2537"},"PeriodicalIF":3.4,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Climate, Host Abundance and Spread: Unravelling the Drivers of Forest Pest Distributions in North America 气候、寄主丰度和传播：揭示北美森林害虫分布的驱动因素

IF 3.4 2区环境科学与生态学 Q2 ECOLOGY

Journal of Biogeography

Pub Date : 2024-09-11 DOI: 10.1111/jbi.15004

Andrew V. Gougherty, Ashley D. Walters, Anantha Prasad, Matthew P. Peters, Stephen N. Matthews, Ian DeMerchant

Aim

Forest pathogens, insect pests and parasitic plants are among the most important disturbance agents in forested ecosystems. Understanding where pests occur and where they might occur in the future will be important for understanding their impacts on host trees, and planning for future pest outbreaks.

Location

North America.

Taxon

Insect pests, pathogens and parasitic plants of forest trees.

Methods

Here, we develop and implement a framework to predict the contemporary distributions of 26 pest species that accounts for climate, host abundance and, for non-native species, their spread on the landscape.

Results

We show that pest distributions can be predicted primarily by climatic variables. The abundance of individual host trees had only minor explanatory power, but the summed total of host abundance frequently had greater importance—suggesting forest composition and the relative frequency of hosts and non-hosts place strong limits on pest distributions. Non-native pests were strongly impacted by the distance from their original discovery location in North America, which tended to interact with climate variables—suggesting most non-native pests are not yet at equilibrium with their potential climatic ranges in North America.

Main Conclusions

This work helps to clarify the generalised controls on pest distributions and provide a framework for predicting pest distributions in future climates.

目的森林病原体、害虫和寄生植物是森林生态系统中最重要的干扰因素之一。了解害虫发生的地点以及未来可能发生的地点，对于了解害虫对寄主树木的影响以及规划未来害虫爆发非常重要。结果我们发现，害虫的分布主要可以通过气候变量来预测。单个寄主树木的丰度只有很小的解释力，但寄主丰度的总和往往具有更大的重要性--这表明森林组成以及寄主和非寄主的相对频率对害虫的分布有很大的限制。非本地害虫受到距离其在北美最初发现地的距离的强烈影响，而这一距离往往与气候变量相互作用--这表明大多数非本地害虫尚未与它们在北美的潜在气候范围达到平衡。

{"title":"Climate, Host Abundance and Spread: Unravelling the Drivers of Forest Pest Distributions in North America","authors":"Andrew V. Gougherty, Ashley D. Walters, Anantha Prasad, Matthew P. Peters, Stephen N. Matthews, Ian DeMerchant","doi":"10.1111/jbi.15004","DOIUrl":"10.1111/jbi.15004","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Forest pathogens, insect pests and parasitic plants are among the most important disturbance agents in forested ecosystems. Understanding where pests occur and where they might occur in the future will be important for understanding their impacts on host trees, and planning for future pest outbreaks.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>North America.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Insect pests, pathogens and parasitic plants of forest trees.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Here, we develop and implement a framework to predict the contemporary distributions of 26 pest species that accounts for climate, host abundance and, for non-native species, their spread on the landscape.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We show that pest distributions can be predicted primarily by climatic variables. The abundance of individual host trees had only minor explanatory power, but the summed total of host abundance frequently had greater importance—suggesting forest composition and the relative frequency of hosts and non-hosts place strong limits on pest distributions. Non-native pests were strongly impacted by the distance from their original discovery location in North America, which tended to interact with climate variables—suggesting most non-native pests are not yet at equilibrium with their potential climatic ranges in North America.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>This work helps to clarify the generalised controls on pest distributions and provide a framework for predicting pest distributions in future climates.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"51 12","pages":"2498-2511"},"PeriodicalIF":3.4,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Climate Interacts With Diversification Rate in Determining Species Richness and Trait Diversity of Tetrapods in a Global Hotspot 气候与物种多样化率相互作用，决定全球热点地区四足动物的物种丰富度和性状多样性

IF 3.4 2区环境科学与生态学 Q2 ECOLOGY

Journal of Biogeography

Pub Date : 2024-09-11 DOI: 10.1111/jbi.15001

Matheus de T. Moroti, Alexander Skeels, Fernando R. da Silva, Diogo B. Provete

Aim

Two classes of mechanisms offer opposing explanations for biodiversity patterns: Equilibrium and nonequilibrium dynamics. While not necessarily mutually exclusive, studies investigating their relative support have shown mixed results. Thus, contrasting these mechanisms across multiple taxa in the same geographic area can provide valuable insights into their role in explaining different biodiversity facets. Here, we evaluated which variables representing these dynamics best explain functional and taxonomic diversity of four tetrapod clades in a global hotspot.

Location

Atlantic forest.

Taxon

Terrestrial vertebrates.

Methods

We used climate, primary productivity and topography heterogeneity as proxy for equilibrium dynamics, and diversification rate and assemblage age as proxy for nonequilibrium dynamics. After that, we used spatially explicit structural equation models based on generalised least squares models to test how species richness and trait diversity are influenced by these dynamics processes. Furthermore, we spatialized the variables for each group and tested whether they were congruent.

Results

Diversification rate was a strong positive driver of species richness and trait diversity, while climate was both an indirect and direct negative driver of richness and trait diversity. Furthermore, we found a congruent pattern of richness between endotherms, but not between ectotherms. In contrast, the spatial distribution of trait diversity, assemblage age and diversification rate was distinct for each group.

Main Conclusion

High diversification rates and climatic conditions played a key role in determining trait diversity and species richness. In addition, species richness and trait diversity responded to the same variables across tetrapod lineages but showed different spatial patterns. This supports the idea that both dynamics operate together to explain community assembly at a regional scale. Our findings suggest that the dichotomy between these two classes of mechanisms may not sufficiently explain diversity patterns in biodiverse and climatically complex environments such as the Atlantic Forest.

目的两类机制为生物多样性模式提供了截然相反的解释：平衡动力学和非平衡动力学。虽然这两类机制并不一定相互排斥，但对其相对支持度的研究结果却好坏参半。因此，在同一地理区域的多个类群中对比这两种机制，可以为了解它们在解释不同生物多样性方面的作用提供有价值的见解。方法我们用气候、初级生产力和地形异质性来代表平衡动态，用多样化率和组合年龄来代表非平衡动态。然后，我们使用基于广义最小二乘法模型的空间显式结构方程模型来检验物种丰富度和性状多样性如何受到这些动态过程的影响。此外，我们还对每组变量进行了空间化处理，并检验了它们是否一致。结果多样化率是物种丰富度和性状多样性的强大正向驱动因素，而气候则是物种丰富度和性状多样性的间接和直接负向驱动因素。此外，我们还发现内温动物之间的物种丰富度模式是一致的，而外温动物之间的物种丰富度模式则不一致。主要结论高分化率和气候条件在决定性状多样性和物种丰富度方面起着关键作用。此外，物种丰富度和性状多样性在四足类群中对相同的变量做出了反应，但表现出不同的空间模式。这支持了这样一种观点，即这两种动力学共同作用，解释了区域尺度上的群落组合。我们的研究结果表明，这两类机制之间的二分法可能不足以解释大西洋森林等生物多样性和气候复杂环境中的多样性模式。

{"title":"Climate Interacts With Diversification Rate in Determining Species Richness and Trait Diversity of Tetrapods in a Global Hotspot","authors":"Matheus de T. Moroti, Alexander Skeels, Fernando R. da Silva, Diogo B. Provete","doi":"10.1111/jbi.15001","DOIUrl":"10.1111/jbi.15001","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Two classes of mechanisms offer opposing explanations for biodiversity patterns: Equilibrium and nonequilibrium dynamics. While not necessarily mutually exclusive, studies investigating their relative support have shown mixed results. Thus, contrasting these mechanisms across multiple taxa in the same geographic area can provide valuable insights into their role in explaining different biodiversity facets. Here, we evaluated which variables representing these dynamics best explain functional and taxonomic diversity of four tetrapod clades in a global hotspot.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Atlantic forest.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Terrestrial vertebrates.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We used climate, primary productivity and topography heterogeneity as proxy for equilibrium dynamics, and diversification rate and assemblage age as proxy for nonequilibrium dynamics. After that, we used spatially explicit structural equation models based on generalised least squares models to test how species richness and trait diversity are influenced by these dynamics processes. Furthermore, we spatialized the variables for each group and tested whether they were congruent.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Diversification rate was a strong positive driver of species richness and trait diversity, while climate was both an indirect and direct negative driver of richness and trait diversity. Furthermore, we found a congruent pattern of richness between endotherms, but not between ectotherms. In contrast, the spatial distribution of trait diversity, assemblage age and diversification rate was distinct for each group.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusion</h3>\u0000 \u0000 <p>High diversification rates and climatic conditions played a key role in determining trait diversity and species richness. In addition, species richness and trait diversity responded to the same variables across tetrapod lineages but showed different spatial patterns. This supports the idea that both dynamics operate together to explain community assembly at a regional scale. Our findings suggest that the dichotomy between these two classes of mechanisms may not sufficiently explain diversity patterns in biodiverse and climatically complex environments such as the Atlantic Forest.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"51 12","pages":"2484-2497"},"PeriodicalIF":3.4,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

How Geomorphology Maps the Dispersal Barriers of Large Herbivorous Mammals in China 地貌学如何描绘中国大型食草哺乳动物的扩散障碍

IF 3.4 2区环境科学与生态学 Q2 ECOLOGY

Journal of Biogeography

Pub Date : 2024-09-11 DOI: 10.1111/jbi.15007

Yicheng Ren, Ziyi Xu, Manyu Li, Wenyu Dai, Jiechen Wang

Aim

Literature and fossil records document the long-term occurrence sites of large herbivorous mammals in China. These sites exhibit spatially uneven distribution, potentially reflecting constraints on the dispersal of large herbivorous mammals imposed by stable geomorphic factors. In this study, we examine the impact of landforms on the dispersal of four taxa of large herbivorous mammals across China.

Location

China.

Taxon

Rhinocerotidae, Elephantidae, Equus, Camelus.

Methods

We employed the Omniscape algorithm to create a connectivity model from geomorphic data (slope, elevation and ground cover), assessing the extent to which Chinese landforms obstruct large herbivore dispersal. This model utilised historical distribution sites to delineate barrier strips.

Results

Dispersal barriers show regional variation, segmenting China into four distinct regions. The Tibetan Plateau, Taklamakan Desert and Qinling Mountains constitute Region A, presenting the most significant barrier. Region B, characterised by dense, continuous mountain ranges and arid landforms in Northwest China, poses a secondary barrier. Region C, with fragmented mountain ranges in Southwest China, exhibits a diminished barrier effect. Region D features the eastern coastal plains with minimal geomorphic constraints.

Conclusions

The edge mountains of the Tibetan Plateau form a continuous barrier strip. The Qinling–Taihang–Yanshan mountain chain constitutes a discontinuous barrier strip. This is because the mountain chain belongs to two geological structural units and is eroded by rivers, creating many corridors.

目的文献和化石记录了中国大型食草哺乳动物的长期出现地点。这些地点在空间上分布不均，可能反映了稳定地貌因素对大型食草哺乳动物扩散的限制。方法我们利用Omniscape算法从地貌数据（坡度、海拔和地面覆盖）中创建了一个连通性模型，评估了中国地貌对大型食草哺乳动物扩散的阻碍程度。该模型利用历史上的分布地点来划分障碍带。结果散布障碍显示出区域差异，将中国划分为四个不同的区域。青藏高原、塔克拉玛干沙漠和秦岭构成 A 区，是最重要的扩散屏障。B 区的特点是山脉密集、连绵不断，西北地区地形干旱，是次要屏障。C 区位于中国西南部，山脉支离破碎，屏障作用减弱。结论青藏高原的边缘山脉形成了一条连续的屏障带。秦岭-太行-燕山山系构成了不连续的屏障带。这是因为秦岭-太行-燕山山系分属两个地质构造单元，并受到河流侵蚀，形成了许多通道。

{"title":"How Geomorphology Maps the Dispersal Barriers of Large Herbivorous Mammals in China","authors":"Yicheng Ren, Ziyi Xu, Manyu Li, Wenyu Dai, Jiechen Wang","doi":"10.1111/jbi.15007","DOIUrl":"10.1111/jbi.15007","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Literature and fossil records document the long-term occurrence sites of large herbivorous mammals in China. These sites exhibit spatially uneven distribution, potentially reflecting constraints on the dispersal of large herbivorous mammals imposed by stable geomorphic factors. In this study, we examine the impact of landforms on the dispersal of four taxa of large herbivorous mammals across China.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>China.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Rhinocerotidae, Elephantidae, <i>Equus</i>, <i>Camelus.</i></p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We employed the Omniscape algorithm to create a connectivity model from geomorphic data (slope, elevation and ground cover), assessing the extent to which Chinese landforms obstruct large herbivore dispersal. This model utilised historical distribution sites to delineate barrier strips.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Dispersal barriers show regional variation, segmenting China into four distinct regions. The Tibetan Plateau, Taklamakan Desert and Qinling Mountains constitute Region A, presenting the most significant barrier. Region B, characterised by dense, continuous mountain ranges and arid landforms in Northwest China, poses a secondary barrier. Region C, with fragmented mountain ranges in Southwest China, exhibits a diminished barrier effect. Region D features the eastern coastal plains with minimal geomorphic constraints.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>The edge mountains of the Tibetan Plateau form a continuous barrier strip. The Qinling–Taihang–Yanshan mountain chain constitutes a discontinuous barrier strip. This is because the mountain chain belongs to two geological structural units and is eroded by rivers, creating many corridors.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"51 12","pages":"2512-2525"},"PeriodicalIF":3.4,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Multi-Modelling Approach for Informing the Conservation of a Cold-Adapted Terrestrial Amphibian in the Face of Climate Change 多模型方法为保护适应寒冷气候的陆生两栖动物提供依据

IF 3.4 2区环境科学与生态学 Q2 ECOLOGY

Journal of Biogeography

Pub Date : 2024-09-08 DOI: 10.1111/jbi.15005

Mirza Čengić, Emina Šunje, Lucio Bonato, Raoul Van Damme, Rob H. J. Lenders, Mark A. J. Huijbregts, Lada Lukić Bilela, Aafke M. Schipper

Aim

We aimed to assess potential climate change impacts on the distribution of a cold-adapted terrestrial amphibian that shows strong intraspecific differentiation.

Location

Alps and Dinarides.

Taxon

Alpine salamander (Salamandra atra).

Methods

We built SDMs for each of two major intraspecific lineages (S. a. atra, which is found throughout the Northern Alps, and S. a. prenjensis, which appears sparsely along the Dinarides) and for the entire species, using occurrence points from a carefully curated database, climate data with 1 km² spatial resolution and eight modelling techniques. We projected climatically suitable areas to 2070 under two climate scenarios (RCP2.6 and RCP8.5), using 24 general circulation models.

Results

For S. a. atra, under RCP2.6 scenario, we detected a 3% increase in the extent of climatically suitable areas in the Alps (although with low model agreement), yet a 6% decrease under the RCP8.5 scenario. For S. a. prenjensis, we detected a decrease in the extent of climatically suitable areas in the Dinarides between 7% and 45% (RCP2.6 and RCP8.5, respectively). The SDM predictions for the entire species were most in line with those of the S. a. atra model. Although climate variables were not equally strong in predicting the climatic suitability for both lineages, the minimum temperature of the coldest month revealed an important predictor for the entire species, with clear decreases in suitability towards higher temperature.

Main Conclusions

All models reveal a considerable decrease in climate suitability throughout most of the range of S. atra, which is particularly visible in the Dinarides. We highlight the importance of considering intraspecific variation when modelling climate change impacts on geographically differentiated species whose populations vary in their climatic niche. We provide our study results (occurrence data and maps) via a web application that can be useful for guiding conservation efforts.

方法我们为两个主要的种内系（S. a. atra，在整个阿尔卑斯山北部都有分布；S. a. prenjensis，在迪纳里德斯山脉分布稀少）和整个物种建立了SDM。a. prenjensis）以及整个物种建立了可持续发展模式，其中使用了精心策划的数据库中的出现点、空间分辨率为 1 平方公里的气候数据以及八种建模技术。结果对于 S. a. atra，在 RCP2.6 情景下，我们发现阿尔卑斯山气候适宜区的范围增加了 3%（尽管模型的一致性较低），而在 RCP8.5 情景下则减少了 6%。对于 S. a. prenjensis，我们发现迪纳里德斯气候适宜区的范围减少了 7% 到 45%（分别为 RCP2.6 和 RCP8.5）。SDM对整个物种的预测与S.虽然气候变量在预测两个种系的气候适宜性方面的作用不尽相同，但最冷月的最低气温对整个物种来说是一个重要的预测因子，随着温度的升高，适宜性明显下降。我们强调了在模拟气候变化对地理上有差异的物种的影响时考虑种内差异的重要性，这些物种的种群在其气候生态位上存在差异。我们通过一个网络应用程序提供研究结果（出现数据和地图），该程序可用于指导保护工作。

{"title":"A Multi-Modelling Approach for Informing the Conservation of a Cold-Adapted Terrestrial Amphibian in the Face of Climate Change","authors":"Mirza Čengić, Emina Šunje, Lucio Bonato, Raoul Van Damme, Rob H. J. Lenders, Mark A. J. Huijbregts, Lada Lukić Bilela, Aafke M. Schipper","doi":"10.1111/jbi.15005","DOIUrl":"10.1111/jbi.15005","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>We aimed to assess potential climate change impacts on the distribution of a cold-adapted terrestrial amphibian that shows strong intraspecific differentiation.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Alps and Dinarides.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Alpine salamander (<i>Salamandra atra</i>).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We built SDMs for each of two major intraspecific lineages (<i>S. a. atra</i>, which is found throughout the Northern Alps, and <i>S. a. prenjensis</i>, which appears sparsely along the Dinarides) and for the entire species, using occurrence points from a carefully curated database, climate data with 1 km<sup>2</sup> spatial resolution and eight modelling techniques. We projected climatically suitable areas to 2070 under two climate scenarios (RCP2.6 and RCP8.5), using 24 general circulation models.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>For <i>S. a. atra</i>, under RCP2.6 scenario, we detected a 3% increase in the extent of climatically suitable areas in the Alps (although with low model agreement), yet a 6% decrease under the RCP8.5 scenario. For <i>S. a. prenjensis</i>, we detected a decrease in the extent of climatically suitable areas in the Dinarides between 7% and 45% (RCP2.6 and RCP8.5, respectively). The SDM predictions for the entire species were most in line with those of the <i>S. a. atra</i> model. Although climate variables were not equally strong in predicting the climatic suitability for both lineages, the minimum temperature of the coldest month revealed an important predictor for the entire species, with clear decreases in suitability towards higher temperature.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>All models reveal a considerable decrease in climate suitability throughout most of the range of <i>S. atra</i>, which is particularly visible in the Dinarides. We highlight the importance of considering intraspecific variation when modelling climate change impacts on geographically differentiated species whose populations vary in their climatic niche. We provide our study results (occurrence data and maps) via a web application that can be useful for guiding conservation efforts.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"51 12","pages":"2469-2483"},"PeriodicalIF":3.4,"publicationDate":"2024-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.15005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantifying the Capacity for Assisted Migration to Achieve Conservation and Forestry Goals Under Climate Change 量化辅助移民在气候变化下实现保护和林业目标的能力

IF 3.4 2区环境科学与生态学 Q2 ECOLOGY

Journal of Biogeography

Pub Date : 2024-09-08 DOI: 10.1111/jbi.14999

Yibiao Zou, Gregory A. Backus, Hugh D. Safford, Sarah Sawyer, Marissa L. Baskett

Aim

Many tree species may be threatened with declines in range and biomass, or even extinction, if they cannot disperse or adapt quickly enough to keep pace with climate change. One potential, and potentially risky, strategy to mitigate this threat is assisted migration (AM), the intentional movement of species to facilitate population range shifts to more climatically suitable locations under climate change. The ability for AM to minimise risk and maximise conservation and forestry outcomes depends on a multi-faceted decision process for determining, what, where and how much to move. We provide an assessment on how the benefits and risks of AM could affect the decision-making process.

Location

Mountainous coastal western United States.

Taxon

Trees.

Methods

We used a dynamic vegetation model parameterised with 23 tree species.

Results

We found that most of the modelled species are likely to experience a substantial decline in biomass, with many potentially facing regional extinction by 2100 under the high-emission SSP5-85 climate-change scenario. Though simulations show AM had little effect on the forestry goal of total biomass across all species, its effects on the conservation goal of promoting individual species' persistence were far more substantial. Among eight AM strategies (differing in the life cycle stage of movement and target destination selection criteria), the approach that conserved the highest biomass for individual species involved relocating target seedlings to areas that recently experienced fire. Although this strategy significantly reduced extinction risk for six at-risk species compared with no action, it also slightly reduced biomass of four species, due to increasing competition. Species with relatively weak tolerance to drought, fire or high temperature were the most likely candidate groups for AM.

Main Conclusions

Our simulations indicate that AM can aid conservation by reducing extinction risks for species vulnerable to climate change, but it has limited impact on forestry-specific goals, affecting overall biomass minimally. This model framework could be applied to other forest ecosystems to evaluate the efficacy of AM globally.

目的许多树种如果不能迅速扩散或适应气候变化，就可能面临分布范围和生物量减少甚至灭绝的威胁。辅助迁移（AM）是减轻这种威胁的一种潜在策略，但也可能存在风险。在气候变化的情况下，通过有意识地迁移物种来促进种群向气候更适宜的地点迁移。辅助迁移能否最大限度地降低风险，最大限度地提高保护和林业成果，取决于确定迁移内容、地点和程度的多方面决策过程。结果我们发现，在高排放的 SSP5-85 气候变化情景下，大多数建模物种的生物量可能会大幅下降，到 2100 年，许多物种可能会面临区域性灭绝。虽然模拟结果表明，AM 对所有物种总生物量的林业目标影响不大，但其对促进单个物种持续生存的保护目标的影响要大得多。在八种调幅策略（移动的生命周期阶段和目标目的地选择标准各不相同）中，为单个物种保存最高生物量的方法是将目标幼苗迁移到最近经历过火灾的地区。与不采取任何行动相比，虽然这一策略大大降低了六个高危物种的灭绝风险，但由于竞争加剧，也略微降低了四个物种的生物量。我们的模拟结果表明，AM 可以降低易受气候变化影响的物种的灭绝风险，从而有助于保护，但它对林业特定目标的影响有限，对总体生物量的影响很小。该模型框架可应用于其他森林生态系统，以评估 AM 在全球范围内的功效。

{"title":"Quantifying the Capacity for Assisted Migration to Achieve Conservation and Forestry Goals Under Climate Change","authors":"Yibiao Zou, Gregory A. Backus, Hugh D. Safford, Sarah Sawyer, Marissa L. Baskett","doi":"10.1111/jbi.14999","DOIUrl":"10.1111/jbi.14999","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Many tree species may be threatened with declines in range and biomass, or even extinction, if they cannot disperse or adapt quickly enough to keep pace with climate change. One potential, and potentially risky, strategy to mitigate this threat is assisted migration (AM), the intentional movement of species to facilitate population range shifts to more climatically suitable locations under climate change. The ability for AM to minimise risk and maximise conservation and forestry outcomes depends on a multi-faceted decision process for determining, what, where and how much to move. We provide an assessment on how the benefits and risks of AM could affect the decision-making process.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Mountainous coastal western United States.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Trees.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We used a dynamic vegetation model parameterised with 23 tree species.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We found that most of the modelled species are likely to experience a substantial decline in biomass, with many potentially facing regional extinction by 2100 under the high-emission SSP5-85 climate-change scenario. Though simulations show AM had little effect on the forestry goal of total biomass across all species, its effects on the conservation goal of promoting individual species' persistence were far more substantial. Among eight AM strategies (differing in the life cycle stage of movement and target destination selection criteria), the approach that conserved the highest biomass for individual species involved relocating target seedlings to areas that recently experienced fire. Although this strategy significantly reduced extinction risk for six at-risk species compared with no action, it also slightly reduced biomass of four species, due to increasing competition. Species with relatively weak tolerance to drought, fire or high temperature were the most likely candidate groups for AM.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Our simulations indicate that AM can aid conservation by reducing extinction risks for species vulnerable to climate change, but it has limited impact on forestry-specific goals, affecting overall biomass minimally. This model framework could be applied to other forest ecosystems to evaluate the efficacy of AM globally.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"51 12","pages":"2440-2455"},"PeriodicalIF":3.4,"publicationDate":"2024-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Using a Nested Sampling Design Across Spatial Scales to Gain Insights Into Distribution Patterns of Fishes, Mussels and Macroinvertebrates in a Riverine System 利用跨空间尺度的嵌套采样设计深入了解河流系统中鱼类、贻贝和大型无脊椎动物的分布模式

IF 3.4 2区环境科学与生态学 Q2 ECOLOGY

Journal of Biogeography

Pub Date : 2024-09-08 DOI: 10.1111/jbi.15003

Mariana Perez Rocha, Karl Cottenie, Katherine Clein, Lindsey Elkins, Rebecca Mangold, Weston Nowlin, Joshuah S. Perkin, Kirby Wright, Astrid Schwalb

Aim

The goal of our study was to use a nested sampling design to compare the distribution of different groups of organisms with different dispersal modes and examine their responses in community composition to environmental heterogeneity at different spatial scales (local pool vs. riffle habitat, sections within a river and between rivers).

Location

Upper Colorado River basin, Texas, USA.

Taxon

Fishes, mussels and macroinvertebrates.

Methods

We sampled 100 sites using a nested sampling design across five rivers (four tributaries and the mainstem), with four river sections and five sampling sites per section, each consisting of a pool and riffle habitat. Collected data on species abundances, local and landscape environmental variables and spatial variables were analysed using a combination of dissimilarity, redundancy and variation partitioning analysis.

Results

At the river scale, environmental heterogeneity explained 28% and 34% of the variation in mussel and fish communities, respectively, and 15% for macroinvertebrates. Community changes between sections in the tributaries were highest for fishes, but similarly high for fishes and macroinvertebrates in the mainstem. Significant patterns for mussels were only detected in rivers with higher abundances. No significant differences in dissimilarity were found between mesohabitats, but a small significant effect of mesohabitat was detected for mussels with RDA after removing the river effect.

Main Conclusions

Although the depauperate mussel communities made it more difficult to draw any conclusions, there were some indications that their distribution was driven by environmental heterogeneity across scales. Section and river scales were relevant for fish, whereas macroinvertebrates showed a weaker response to environmental heterogeneity at these scales. The combination of approaches detected more ecologically meaningful patterns than one analysis alone would have. This study highlights the complexity of riverine community dynamics and underscores the need for a multiscale approach to identify their distribution patterns.

目的我们的研究旨在利用嵌套取样设计来比较具有不同散布模式的不同生物群体的分布情况，并考察它们在不同空间尺度（当地水池与河沟栖息地、河流内的河段以及河流之间）的群落组成对环境异质性的反应。地点美国得克萨斯州科罗拉多河上游流域分类群鱼类、贻贝和大型无脊椎动物方法我们采用嵌套取样设计在五条河流（四条支流和干流）的 100 个地点进行了取样，共有四个河段，每个河段有五个取样点，每个取样点由水池和河沟栖息地组成。结果在河流尺度上，环境异质性分别解释了 28% 和 34% 的贻贝和鱼类群落变化，解释了 15% 的大型无脊椎动物群落变化。支流不同河段之间鱼类群落的变化最大，但干流鱼类和大型无脊椎动物群落的变化也同样大。只有在丰度较高的河流中才能发现贻贝的显著模式。主要结论虽然贻贝群落的衰退使我们更难得出结论，但有一些迹象表明，它们的分布是由不同尺度的环境异质性所驱动的。河段和河流尺度与鱼类有关，而在这些尺度上，大型无脊椎动物对环境异质性的反应较弱。与单独一种分析方法相比，综合使用多种方法能发现更多具有生态意义的模式。这项研究凸显了河流群落动态的复杂性，并强调了采用多尺度方法识别其分布模式的必要性。

{"title":"Using a Nested Sampling Design Across Spatial Scales to Gain Insights Into Distribution Patterns of Fishes, Mussels and Macroinvertebrates in a Riverine System","authors":"Mariana Perez Rocha, Karl Cottenie, Katherine Clein, Lindsey Elkins, Rebecca Mangold, Weston Nowlin, Joshuah S. Perkin, Kirby Wright, Astrid Schwalb","doi":"10.1111/jbi.15003","DOIUrl":"10.1111/jbi.15003","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>The goal of our study was to use a nested sampling design to compare the distribution of different groups of organisms with different dispersal modes and examine their responses in community composition to environmental heterogeneity at different spatial scales (local pool vs. riffle habitat, sections within a river and between rivers).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Upper Colorado River basin, Texas, USA.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Fishes, mussels and macroinvertebrates.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We sampled 100 sites using a nested sampling design across five rivers (four tributaries and the mainstem), with four river sections and five sampling sites per section, each consisting of a pool and riffle habitat. Collected data on species abundances, local and landscape environmental variables and spatial variables were analysed using a combination of dissimilarity, redundancy and variation partitioning analysis.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>At the river scale, environmental heterogeneity explained 28% and 34% of the variation in mussel and fish communities, respectively, and 15% for macroinvertebrates. Community changes between sections in the tributaries were highest for fishes, but similarly high for fishes and macroinvertebrates in the mainstem. Significant patterns for mussels were only detected in rivers with higher abundances. No significant differences in dissimilarity were found between mesohabitats, but a small significant effect of mesohabitat was detected for mussels with RDA after removing the river effect.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Although the depauperate mussel communities made it more difficult to draw any conclusions, there were some indications that their distribution was driven by environmental heterogeneity across scales. Section and river scales were relevant for fish, whereas macroinvertebrates showed a weaker response to environmental heterogeneity at these scales. The combination of approaches detected more ecologically meaningful patterns than one analysis alone would have. This study highlights the complexity of riverine community dynamics and underscores the need for a multiscale approach to identify their distribution patterns.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"51 12","pages":"2456-2468"},"PeriodicalIF":3.4,"publicationDate":"2024-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.15003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Holocene Climate Change Promoted Allopatric Divergence and Disjunct Geographic Distribution in a Bee Orchid Species 全新世气候变化促进了一种蜂兰物种的异地分化和地理分布的分离

IF 3.4 2区环境科学与生态学 Q2 ECOLOGY

Journal of Biogeography

Pub Date : 2024-09-02 DOI: 10.1111/jbi.14998

Anaïs Gibert, Roselyne Buscail, Michel Baguette, Christelle Fraïsse, Camille Roux, Bertrand Schatz, Joris A. M. Bertrand

Aim

Species with disjunct geographic distributions provide natural opportunities to investigate incipient or recent allopatric divergence. The combination of both genetic and ecological data may be fruitful to decipher the causes of such patterns: (i) actual vicariance, (ii) successful colonisation from one source to a new range (dispersal, biological introduction) or (iii) parallel convergent evolution.

Location

Southern France and Northern Spain.

Taxon

The bee orchid Ophrys aveyronensis (and its two recognised subspecies O. a. subsp. aveyronensis and O. a. subsp. vitorica) displays a disjunct geographic distribution with two subranges separated by 600 km on both sides of the Pyrenees mountain range.

Methods

As allopatric divergence is often complex to document in the wild, we used a combination of population genomics and ecological niche modelling (ENM) to investigate the causes of this intriguing biogeographic pattern.

Results

The population genomic data demonstrate that all the studied populations exhibit similar patterns of genetic diversity and dramatic decrease in effective size compared with the ancestral population. Significant genetic differentiation and reciprocal monophyly exist between populations of the two subranges of O. aveyronensis, despite a very recent divergence time as young as ca. 1500 generations ago. Moreover, paleo-ENM analyses support that the disjunct geographic distribution of O. aveyronensis is consistent with a range split of a broad ancestral range, contraction and distinct longitudinal and latitudinal shifts in response to climate warming during the Holocene.

Main Conclusion

The congruence of the results obtained from both population genomics and ENM approaches documents how very recent continental allopatric divergence initiated speciation in this system. O. aveyronensis provides a promising opportunity to study the onset of reproductive isolation and parallel evolution following an initial stage of geographic separation in a group with high diversification rate.

目的地理分布不连续的物种为研究初期或近期的同域分化提供了天然的机会。结合遗传学和生态学数据，可能有助于破译造成这种模式的原因：(i) 实际的沧海桑田，(ii) 从一个来源地成功殖民到一个新的分布区（扩散、生物引入）或 (iii) 平行的趋同进化。vitorica）在比利牛斯山脉两侧的两个亚区相距 600 千米，呈现出不连续的地理分布。方法由于在野外记录异地分化通常比较复杂，我们结合种群基因组学和生态位建模（ENM）来研究这种有趣的生物地理格局的原因。尽管分化时间很短，只有大约 1500 代以前，但 O. aveyronensis 两个亚区的种群之间存在显著的遗传分化和互为单系。此外，古ENM分析证实，O. aveyronensis的不连续地理分布与祖先分布区广阔、随着全新世气候变暖而收缩以及明显的经度和纬度转移的分布区分裂是一致的。O. aveyronensis提供了一个很好的机会来研究在一个具有高分化率的类群中，在地理分离的初始阶段之后开始的生殖隔离和平行进化。

{"title":"Holocene Climate Change Promoted Allopatric Divergence and Disjunct Geographic Distribution in a Bee Orchid Species","authors":"Anaïs Gibert, Roselyne Buscail, Michel Baguette, Christelle Fraïsse, Camille Roux, Bertrand Schatz, Joris A. M. Bertrand","doi":"10.1111/jbi.14998","DOIUrl":"10.1111/jbi.14998","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Species with disjunct geographic distributions provide natural opportunities to investigate incipient or recent allopatric divergence. The combination of both genetic and ecological data may be fruitful to decipher the causes of such patterns: (i) actual vicariance, (ii) successful colonisation from one source to a new range (dispersal, biological introduction) or (iii) parallel convergent evolution.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Southern France and Northern Spain.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>The bee orchid <i>Ophrys aveyronensis</i> (and its two recognised subspecies <i>O. a.</i> subsp. <i>aveyronensis</i> and <i>O. a.</i> subsp. <i>vitorica</i>) displays a disjunct geographic distribution with two subranges separated by 600 km on both sides of the Pyrenees mountain range.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>As allopatric divergence is often complex to document in the wild, we used a combination of population genomics and ecological niche modelling (ENM) to investigate the causes of this intriguing biogeographic pattern.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The population genomic data demonstrate that all the studied populations exhibit similar patterns of genetic diversity and dramatic decrease in effective size compared with the ancestral population. Significant genetic differentiation and reciprocal monophyly exist between populations of the two subranges of <i>O. aveyronensis</i>, despite a very recent divergence time as young as ca. 1500 generations ago. Moreover, paleo-ENM analyses support that the disjunct geographic distribution of <i>O. aveyronensis</i> is consistent with a range split of a broad ancestral range, contraction and distinct longitudinal and latitudinal shifts in response to climate warming during the Holocene.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusion</h3>\u0000 \u0000 <p>The congruence of the results obtained from both population genomics and ENM approaches documents how very recent continental allopatric divergence initiated speciation in this system. <i>O. aveyronensis</i> provides a promising opportunity to study the onset of reproductive isolation and parallel evolution following an initial stage of geographic separation in a group with high diversification rate.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"51 12","pages":"2424-2439"},"PeriodicalIF":3.4,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving Online Citizen Science Platforms for Biodiversity Monitoring 改进用于生物多样性监测的在线公民科学平台

IF 3.4 2区环境科学与生态学 Q2 ECOLOGY

Journal of Biogeography

Pub Date : 2024-08-31 DOI: 10.1111/jbi.15000

Francesca Della Rocca, Marco Musiani, Marco Galaverni, Pietro Milanesi

Background

Monitoring biodiversity is crucial in biogeography. Citizen science and biodiversity platforms have revolutionized data access across taxa, but they struggle to provide robust raw data essential for conservation decisions.

Aims

This study addresses data gaps for under-represented species and locations, observer expertise variability, and the lack of absence data and sampling effort information to improve data representation and suitability for statistical analyses.

Materials & Methods

We collected, compared to IUCN-recognized taxonomic groups, all worldwide living being (animal, plant and fungi) observations held by four major biodiversity platforms: eBird, GBIF, iNaturalist, and Observation.org. We also organized such observations by country of origin and based on their Human Development Index (HDI).

Results

We found that, while GBIF, iNaturalist, and Observation.org cover all life forms, birds are the most observed (eBird is a bird-specific platform), whereas fish, other marine organisms, arthropods, and invertebrates are dramatically underrepresented. Moreover, none of the above-mentioned biodiversity platforms considered or directly analysed expertise variability among observers and, apart from eBird, the other three biodiversity platforms do not accommodate data on species absence and sampling effort.

Discussion and Conclusion

Finally, we found that species observations on biodiversity platforms considered in this study are skewed towards high HDI countries, primarily North America and Europe. By enhancing the effectiveness of biodiversity platforms, this study has the potential to significantly advance the field of biogeography, paving the way for more informed and effective conservation strategies. Overall, our findings underscore the untapped potential of these platforms in contributing to our understanding of the spatial and temporal patterns of biodiversity.

背景监测生物多样性对生物地理学至关重要。本研究解决了代表性不足的物种和地点的数据缺口、观察者专业知识的可变性以及缺乏缺失数据和采样努力信息等问题，以提高数据代表性和统计分析的适宜性。材料& 方法我们收集了 eBird、GBIF、iNaturalist 和 Observation.org 四个主要生物多样性平台上的所有全球生物（动物、植物和真菌）观测数据，并与世界自然保护联盟（IUCN）认可的分类组进行了比较。结果我们发现，虽然 GBIF、iNaturalist 和 Observation.org 涵盖了所有生命形式，但鸟类是被观测到最多的生命形式（eBird 是一个专门针对鸟类的平台），而鱼类、其他海洋生物、节肢动物和无脊椎动物的代表性则明显不足。此外，上述生物多样性平台均未考虑或直接分析观察者之间的专业知识差异，除 eBird 外，其他三个生物多样性平台均未提供物种缺失和采样努力的数据。讨论与结论最后，我们发现本研究中考虑的生物多样性平台上的物种观察偏向于人类发展指数较高的国家，主要是北美和欧洲。通过提高生物多样性平台的有效性，本研究有可能极大地推动生物地理学领域的发展，为制定更明智、更有效的保护战略铺平道路。总之，我们的研究结果强调了这些平台在帮助我们了解生物多样性的空间和时间模式方面尚未开发的潜力。

{"title":"Improving Online Citizen Science Platforms for Biodiversity Monitoring","authors":"Francesca Della Rocca, Marco Musiani, Marco Galaverni, Pietro Milanesi","doi":"10.1111/jbi.15000","DOIUrl":"10.1111/jbi.15000","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Monitoring biodiversity is crucial in biogeography. Citizen science and biodiversity platforms have revolutionized data access across taxa, but they struggle to provide robust raw data essential for conservation decisions.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>This study addresses data gaps for under-represented species and locations, observer expertise variability, and the lack of absence data and sampling effort information to improve data representation and suitability for statistical analyses.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials & Methods</h3>\u0000 \u0000 <p>We collected, compared to IUCN-recognized taxonomic groups, all worldwide living being (animal, plant and fungi) observations held by four major biodiversity platforms: eBird, GBIF, iNaturalist, and Observation.org. We also organized such observations by country of origin and based on their Human Development Index (HDI).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We found that, while GBIF, iNaturalist, and Observation.org cover all life forms, birds are the most observed (eBird is a bird-specific platform), whereas fish, other marine organisms, arthropods, and invertebrates are dramatically underrepresented. Moreover, none of the above-mentioned biodiversity platforms considered or directly analysed expertise variability among observers and, apart from eBird, the other three biodiversity platforms do not accommodate data on species absence and sampling effort.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Discussion and Conclusion</h3>\u0000 \u0000 <p>Finally, we found that species observations on biodiversity platforms considered in this study are skewed towards high HDI countries, primarily North America and Europe. By enhancing the effectiveness of biodiversity platforms, this study has the potential to significantly advance the field of biogeography, paving the way for more informed and effective conservation strategies. Overall, our findings underscore the untapped potential of these platforms in contributing to our understanding of the spatial and temporal patterns of biodiversity.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"51 12","pages":"2412-2423"},"PeriodicalIF":3.4,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.15000","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142178140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0