Diversity and Distributions最新文献_第7页

Full Annual Cycle Drivers of Phenology in a Migratory Bird Reveal Implications for Spatial Variation in Vulnerability to Climate Change 候鸟物候的全年周期驱动揭示了气候变化脆弱性的空间差异

IF 4.2 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Diversity and Distributions

Pub Date : 2025-10-13 DOI: 10.1111/ddi.70099

Rebecca J. Ralston, Christopher M. Tonra

Aim

Climate change is broadly altering species’ phenology, and phenological asynchrony between birds and their required breeding resources can sharply decrease productivity. While some bird species have altered their spring migration timing, it is poorly understood why others have not. We examine how environmental conditions across the annual cycle influence arrival timing across the breeding distribution of one such species, the prothonotary warbler (Protonotaria citrea).

Location

The breeding distribution of the prothonotary warbler (eastern and central United States).

Methods

Using 11 years of eBird data, we modelled mean arrival dates across the breeding distribution of the species. We then fit generalized linear mixed models to assess how primary productivity of vegetation, average rainfall, and temperature on the nonbreeding grounds and spring stopover range, as well as vegetation phenology and temperature on the breeding grounds, influenced arrival timing. Additionally, we identified whether these relationships varied spatially across the distribution of the species while controlling for migration distance.

Results

Mean arrival of eastern prothonotary warblers was up to 7 days later in years with lower primary productivity of vegetation in March on the nonbreeding grounds. However, western populations showed no significant response to nonbreeding environmental conditions. Drivers of arrival timing did not vary according to migration distance but rather varied longitudinally. The impacts of stopover and breeding ground environmental conditions were minor compared to nonbreeding environmental conditions.

Main Conclusions

Climatic variation on the nonbreeding grounds can affect migration timing at broad scales. Eastern prothonotary warbler populations, which are declining, show greater evidence of carry-over effects of nonbreeding environmental conditions than western populations, potentially due to differences in migratory strategy. Therefore, eastern populations may be more vulnerable to changing nonbreeding ground conditions, and such conditions may be a driver of the differential declines seen in the prothonotary warbler.

目的气候变化正在广泛地改变着物种的物候特征，鸟类及其所需的繁殖资源之间的物候不同步会严重降低其生产力。虽然一些鸟类已经改变了它们春季迁徙的时间，但人们对其他鸟类没有改变的原因却知之甚少。我们研究了整个年周期的环境条件如何影响一个这样的物种，原翅莺（原翅莺）的繁殖分布的到达时间。原翅莺的繁殖分布（美国东部和中部）。方法利用11年的eBird数据，对该物种繁殖分布的平均到达日期进行建模。然后，我们拟合广义线性混合模型来评估植被初级生产力、平均降雨量、非繁殖地和春季停留范围的温度以及繁殖地的植被物候和温度如何影响到达时间。此外，我们确定了在控制迁移距离的情况下，这些关系是否在物种分布的空间上有所不同。结果在非繁殖地植被初级生产力较低的年份，东部原翅莺的平均到达时间晚7天。然而，西部种群对非繁殖环境条件没有明显的反应。到达时间的驱动因素不随迁移距离而变化，而是纵向变化。与非繁殖地环境条件相比，中途停留和繁殖地环境条件的影响较小。主要结论非繁殖地的气候变化会在大尺度上影响迁徙时间。与西部种群相比，正在下降的东部原翅莺种群显示出更多的非繁殖环境条件的携带效应，这可能是由于迁徙策略的差异。因此，东部种群可能更容易受到变化的非繁殖地条件的影响，而这种条件可能是在原翅莺中看到的差异下降的驱动因素。

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引用次数: 0

Detections of Rare Species Lead Citizen Scientists to Initiate Data Recording 稀有物种的发现导致公民科学家开始数据记录

IF 4.2 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Diversity and Distributions

Pub Date : 2025-10-10 DOI: 10.1111/ddi.70103

Louis J. Backstrom, Rachel L. Drake, Hannah Worthington, Alison Johnston

Aim

Citizen science data are increasingly used to monitor biodiversity but come with several challenges that can impair accurate ecological conclusions. We explore how observers' preferences for certain species over others bias the initiation of survey efforts and assess the extent of this sampling bias in semi-structured citizen science datasets. We investigate the effects of this bias on occupancy model-based species distribution models and offer suggestions for mitigating this when analysing citizen science data.

Location

Great Britain, with methods applicable to citizen science datasets worldwide.

Methods

We assess observer species preferences in list initiation via two methods: (1) indirectly through exploration of the relationship between species rarity and survey duration and (2) directly through analysis of the first-recorded species on surveys. We use these results to assess the impact of list-initiation sampling bias on occupancy models of 132 common breeding birds across Britain.

Results

We find evidence for list-initiation sampling bias in British eBird and BirdTrack data. This bias is driven by observer preferences for certain species over others, with species preferences correlated with species rarity. This bias was stronger in short-duration surveys, and removing short surveys to remove these biased lists had limited impacts on occupancy models.

Conclusions

Citizen science schemes projects that allow observers freedom in how they observe and record biodiversity consequently have more heterogeneous datasets. Observer species preferences lead to biased initiation of surveys and consequent overreporting of some species. Although we find limited effects of this bias on occupancy models in our study, we nevertheless suggest analysts consider its possible effects when exploring and analysing citizen science data.

目的：公民科学数据越来越多地用于监测生物多样性，但也带来了一些挑战，可能会损害准确的生态结论。我们探讨了观察者对某些物种的偏好如何影响调查工作的开始，并评估了这种抽样偏差在半结构化公民科学数据集中的程度。我们研究了这种偏见对基于占用模型的物种分布模型的影响，并在分析公民科学数据时提供了减轻这种偏见的建议。定位英国，方法适用于全球公民科学数据集。方法通过两种方法来评估观察物种对名单建立的偏好：(1)通过探索物种稀有度与调查持续时间的关系来间接评估；(2)通过分析调查中首次记录的物种来直接评估。我们利用这些结果来评估列表起始抽样偏差对英国132种常见繁殖鸟类占用模型的影响。结果在英国eBird和BirdTrack数据中发现了列表起始抽样偏差的证据。这种偏见是由观察者对某些物种的偏好所驱动的，而物种偏好与物种的稀有性有关。这种偏差在短期调查中更强，通过删除短期调查来消除这些偏差列表对入住率模型的影响有限。公民科学计划项目允许观察者自由地观察和记录生物多样性，因此拥有更多的异构数据集。观察物种的偏好导致了调查开始时的偏见和一些物种的过度报告。尽管我们在研究中发现这种偏见对占用模型的影响有限，但我们建议分析师在探索和分析公民科学数据时考虑其可能的影响。

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引用次数: 0

Combining Distribution Models of Plants and Their Mutualists to Map Gaps in the Knowledge of Ecological Interactions 结合植物及其共生体的分布模型来绘制生态相互作用知识的空白

IF 4.2 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Diversity and Distributions

Pub Date : 2025-10-08 DOI: 10.1111/ddi.70090

Amanda Fricensaft Baracat, Carlos E. Pereira Nunes, Paulo Milet-Pinheiro, João de Deus Vidal Junior

Aim

The distribution of species relying on mutualistic partners for reproduction can be constrained by their partners' distribution. Nonetheless, biotic interactions are often overlooked when estimating the distributions of species (e.g., pollinators of a given plant and the proportion of them with their distribution modelled). In the Tropics, the abundance of highly specific interactions provides a promising model to test the extent of these limitations, but regional knowledge gaps (e.g., occurrence and biotic interactions) hinder this potential. Here, we combine interaction data with niche models to identify such gaps and recommend targets for natural history studies and future sampling efforts.

Location

Tropical Americas.

Methods

We compiled occurrence records for a dataset of pollination interactions of plants exclusively pollinated by male euglossine bees. We calibrated individually tuned niche models for 37 plants and 39 bee species. We compared the potential distribution overlaps across plants and their respective pollinators and discussed their interpretation in relation to different indicators of knowledge gaps.

Results

Overlap between the potential distribution of plants and their pollinators varied across species and regions. Among the plant species modelled, 62% had insufficient information on their pollinator distribution or identity. The overlapping potential distribution of plant-pollinators was positively related to the proportion of known pollinators included in our models. Plant species more frequently studied were also associated with higher numbers of reported pollinators. Northern South America and the Amazon basin were identified as the major gaps.

Main Conclusions

Despite increasing research effort on this system, significant sampling gaps persist. Considering the high plant richness, a surprisingly low proportion of species (ca. 1.5%) had pollinator identities and distributions sufficiently documented. We provide a framework to identify and map such gaps. Our study evidences the need to improve sampling and digitisation efforts in poorly documented regions and taxa. This can be extended to other systems, improving biodiversity documentation and conservation monitoring.

目的依靠共生伴侣进行繁殖的物种的分布可能受到其伴侣分布的限制。然而，在估计物种分布时，生物相互作用往往被忽视（例如，给定植物的传粉者及其分布模型所占的比例）。在热带地区，丰富的高度特异性相互作用为测试这些限制的程度提供了一个有希望的模型，但区域知识差距（例如，发生和生物相互作用）阻碍了这一潜力。在这里，我们将交互数据与利基模型结合起来，以确定这些差距，并为自然历史研究和未来的抽样工作推荐目标。地理位置：热带美洲。方法对雄性真花蜂传粉的植物的传粉相互作用数据集进行了记录。我们分别对37种植物和39种蜜蜂的生态位模型进行了校准。我们比较了植物及其各自传粉者之间潜在的分布重叠，并讨论了它们与不同知识差距指标之间的解释。结果植物及其传粉者的潜在分布在不同的物种和地区之间存在重叠。在模拟的植物物种中，62%的物种对其传粉者的分布或身份信息不足。植物传粉者的重叠潜在分布与模型中已知传粉者的比例呈正相关。经常被研究的植物物种也与报道的传粉者数量较多有关。南美洲北部和亚马逊盆地被确定为主要的缺口。尽管对该系统的研究越来越多，但显著的抽样差距仍然存在。考虑到植物丰富度高，传粉者身份和分布有充分记录的物种比例低得惊人（约1.5%）。我们提供了一个框架来识别和绘制这些差距。我们的研究表明，需要在记录不足的地区和分类群中改进采样和数字化工作。这可以扩展到其他系统，改善生物多样性记录和保护监测。

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引用次数: 0

Contrasting Latitudinal Diversity Gradients in Karst and Non-Karst Forests: Evidence for Bedrock-Driven Modulation 喀斯特和非喀斯特森林的纬度多样性梯度对比：基岩驱动调节的证据

IF 4.2 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Diversity and Distributions

Pub Date : 2025-10-06 DOI: 10.1111/ddi.70098

Li Huang, Yunpeng Nie, Ivan Prieto, Zidong Luo, Wenna Liu, Wei Zhang, Hongsong Chen

<div> <section> <h3> Aim</h3> <p>Plant diversity is essential for ecosystem stability and the delivery of ecosystem services. While climate, through energy and water (i.e., productivity), is the primary driver of the latitudinal diversity gradient (LDG), edaphic conditions modulate resource storage and heterogeneity. The role of bedrock-driven edaphic gradients in shaping LDG patterns remains poorly understood. Here, we tested how edaphic conditions interact with climate to shape species diversity and LDG patterns, underscoring the role of geodiversity in conservation.</p> </section> <section> <h3> Location</h3> <p>Subtropical forests spanning ~10° latitude in Southwestern China.</p> </section> <section> <h3> Methods</h3> <p>We conducted a large-scale vegetation survey across 60 forest plots on parallel limestone (karst) and clastic (non-karst) bedrocks recording over 17,000 individuals belonging to 654 woody species. We analysed diversity patterns in relation to latitude, climate, soil physicochemical properties and bedrock composition using structural equation modelling and linear mixed models.</p> </section> <section> <h3> Results</h3> <p>Despite similar climatic variation, karst forests exhibited higher topsoil Ca and Mg concentrations (SoilPC1) than non-karst forests. Together with shallower soils and lower SiO<sub>2</sub> contents at low latitudes, elevated SoilPC1 was associated with lower species richness, consistent with the ~20% lower richness in karst forests. We found a positive effect of climate on richness (0.22), while SoilPC1 exerted a stronger negative effect (−0.34). Non-karst forests followed the traditional LDG pattern, with diversity increasing towards lower latitudes whereas it declined towards lower latitudes within karst forests, reversing the LDG trend. This divergence was associated with increasing SoilPC1 and declining soil depth and SiO<sub>2</sub> contents towards low-latitude karst regions.</p> </section> <section> <h3> Main Conclusions</h3> <p>Our findings provide evidence that bedrock-driven differences in edaphic conditions between karst and non-karst systems fundamentally regulate plant diversity reshaping LDG patterns. This advances the floristic geo-lithology hypothesis and calls for integrating geodiversity into conservation frameworks. Given the ecological sensitivity and global extent of karst ecosystems, understanding bedrock–climate interactions is critical for conservation planning.</p> </sec

目的植物多样性对生态系统稳定和提供生态系统服务至关重要。气候通过能量和水（即生产力）是纬向多样性梯度（LDG）的主要驱动因素，而土壤条件调节资源储量和异质性。基岩驱动的地形梯度在形成LDG格局中的作用仍然知之甚少。在这里，我们测试了地理条件如何与气候相互作用来塑造物种多样性和LDG模式，强调了地质多样性在保护中的作用。地理位置中国西南部分布于~10°纬度的亚热带森林。方法对60个平行于石灰岩（喀斯特）和碎屑（非喀斯特）基岩的森林样地进行了大规模植被调查，记录了654种木本植物、17000余个个体。我们使用结构方程模型和线性混合模型分析了与纬度、气候、土壤理化性质和基岩组成有关的多样性模式。结果尽管气候变化相似，但喀斯特森林的表层土壤Ca和Mg浓度（SoilPC1）高于非喀斯特森林。低纬地区土壤较浅，SiO2含量较低，土壤pc1升高与物种丰富度降低相关，与喀斯特森林物种丰富度降低约20%相一致。气候对丰富度有正影响（0.22），而土壤pc1对丰富度有负影响（- 0.34）。非喀斯特森林遵循传统的LDG格局，在喀斯特森林内，多样性向低纬度增加，向低纬度下降，逆转了LDG趋势。这种差异与低纬喀斯特地区土壤pc1升高、土壤深度和SiO2含量下降有关。研究结果表明，基岩驱动的喀斯特和非喀斯特土壤条件差异从根本上调节了植物多样性重塑LDG模式。这提出了植物区系地质岩性假说，并呼吁将地质多样性纳入保护框架。考虑到喀斯特生态系统的生态敏感性和全球范围，了解基岩-气候相互作用对保护规划至关重要。

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引用次数: 0

Mapping the Azores Marine Park Vulnerability to Temperature Changes 绘制亚速尔群岛海洋公园对温度变化的脆弱性

IF 4.2 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Diversity and Distributions

Pub Date : 2025-09-30 DOI: 10.1111/ddi.70059

Neus Campanyà-Llovet, Amanda E. Bates, Ana Colaço

Aim

Identifying highly vulnerable regions to climate change is increasingly incorporated in marine management planning given the expected redistribution of species with latitude, longitude, and depth following temperature changes. Here, we developed a spatially explicit vulnerability framework incorporating sensitivity, exposure, and adaptive capacity of species living in one of the largest networks of Marine Protected Areas (MPAs) within the EU.

Location

Azores Marine Park, North Atlantic.

Methods

We quantified benthic, benthopelagic, and pelagic species sensitivity to temperature changes based on adult thermal affinity and georeferenced their distribution with quality-controlled records from various data compilators. To assess their exposure, we extracted historical (1995–2020) temperatures across latitudes, longitudes, and depths and calculated mean interannual change (i.e., increase or decrease) and variability. We estimated the adaptive capacity of species with traits related to relocation ability during adult and early life stages (i.e., “Motility” and “Developmental Mechanism”) using the FUN Azores trait database. To map the results, we pooled the species into 3D-regions of 0.25° × 0.25° resolution and 50 and 500 m depth bands at shallow and deep areas, respectively. We assigned a sensitivity, exposure, and adaptive capacity score to each region based on species scores and combined them into a final vulnerability class (i.e., “Highly Vulnerable” (HV), “Advisable Monitoring” (AM), “Expected Relocation” (ER), and “Least Concern” (LC)).

Results

HV and AM regions exist only in the benthic environment across various MPAs and depths. Increased mobility of species explains the absence of the most vulnerable categories in the benthopelagic and pelagic environments.

Main Conclusions

We advise strong conservation measures in HV areas and to maintain connectivity with climate refugia and monitoring of environmental variables and populations in areas classified as AM and ER, respectively. Our results suggest that the Azores deep-sea benthos is the most vulnerable environment to both warming and temperature variations.

考虑到温度变化后物种随纬度、经度和深度的再分配，确定易受气候变化影响的高度脆弱区域越来越多地纳入海洋管理规划。在这里，我们开发了一个空间上明确的脆弱性框架，包括敏感性、暴露和适应能力，物种生活在欧盟最大的海洋保护区（MPAs）网络之一。地点：北大西洋亚速尔群岛海洋公园。方法基于成虫热亲和度，量化底栖、底栖和远洋物种对温度变化的敏感性，并根据不同数据汇编器的质量控制记录对其分布进行地理参考。为了评估它们的暴露程度，我们提取了各纬度、经度和深度的历史（1995-2020年）温度，并计算了平均年际变化（即增加或减少）和变率。利用FUN亚速尔性状数据库估算了具有迁移能力相关性状的物种在成年期和生命早期的适应能力（即“运动性”和“发育机制”）。为了绘制结果，我们将物种汇集到0.25°× 0.25°分辨率的3d区域，分别在浅区和深区进行50和500 m深度的波段。我们根据物种得分为每个区域分配了敏感性、暴露度和适应能力得分，并将它们组合成最终的脆弱性类别（即“高度脆弱”（HV）、“建议监测”（AM）、“预期搬迁”（ER）和“最不关注”（LC））。结果HV区和AM区仅存在于不同海洋保护区和深度的底栖环境中。物种流动性的增加解释了底栖和远洋环境中最脆弱类别的缺失。我们建议在HV地区采取强有力的保护措施，保持与气候避难所的连通性，并分别监测AM和ER地区的环境变量和人口。研究结果表明，亚速尔群岛深海底栖生物是最容易受到气候变暖和温度变化影响的环境。

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引用次数: 0

Remoteness Is Not a Silver Bullet for Mediating Local Human Stressors on Tropical Benthic Communities 偏远并不是缓解热带底栖生物群落当地人类压力的灵丹妙药

IF 4.2 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Diversity and Distributions

Pub Date : 2025-09-30 DOI: 10.1111/ddi.70086

Paris V. Stefanoudis, Farah Amjad, Nina M. de Villiers, Mariyam Shidha Afzal, Fathimath Hana Amir, Shaha Hashim, Ryan Palmer, Nuria Rico Seijo, Mohamed Shimal, Denise Swanborn, Sheena Talma, Mohamed Ahusan, Lucy C. Woodall

Aim

Tropical coral reefs are at the forefront of the current triple planetary crisis of climate change, pollution, and biodiversity loss. While geographic remoteness is considered to shield reefs from local human pressures, and potentially aid in combating adverse climate change impacts, recent evidence from shallow reefs (0–30 m) to support this hypothesis has been inconclusive. We use a holistic approach focusing on the whole shallow reef community and expanding to mesophotic coral ecosystems (MCEs; 30–150 m) and deep-sea corals (250–500 m) to test the effect of vertical (depth) remoteness.

Location

Five coral atolls in the Maldives, central Indian Ocean, including depths from 0 to 500 m.

Method

Firstly, we obtained benthic community characteristics (abundance, richness, community evenness) by annotating 4200 images from 105 stereo video-based transect surveys. Subsequently, we collected data on human activities and proxies thereof that could impact benthic communities, as well as other geographic and topographic parameters due to their role in shaping benthic communities. Using modelling approaches (random forests), we then combined the above datasets to assess the importance and influence of human pressure and other variables on benthic community characteristics.

Results

We report that shallow reef benthic communities—both their abundance and richness—were higher on geographically remote reefs, and these communities were also more even. No such pattern was observed for MCE evenness, while richness was actually lower on remote reefs. Notably, MCE abundance and all deep-sea models had low explanatory power, suggesting that factors other than human pressures, such as depth and topography, are driving community patterns at our study sites, highlighting the need for holistic, multi-faceted approaches to coral reef conservation and management.

Main Conclusion

Overall, our results highlight that remoteness is not a proxy for reduced human impact on MCEs. Considering their unique biodiversity and associated services, and combined with the numerous pressures they face, MCEs should be conservation priorities.

热带珊瑚礁处于当前气候变化、污染和生物多样性丧失三重全球危机的最前沿。虽然地理上的偏远被认为可以保护珊瑚礁免受当地人类的压力，并可能有助于对抗不利的气候变化影响，但最近来自浅层珊瑚礁（0-30米）的证据支持这一假设尚无定论。我们采用了一种全面的方法，专注于整个浅礁群落，并扩展到中孔珊瑚生态系统（MCEs； 30-150米）和深海珊瑚（250-500米），以测试垂直（深度）偏远的影响。位于印度洋中部马尔代夫的五个珊瑚环礁，水深0至500米。方法首先对105份立体影像样带调查的4200幅影像进行注释，得到底栖生物群落特征（丰度、丰富度、均匀度）。随后，我们收集了可能影响底栖生物群落的人类活动及其代用物的数据，以及其他地理和地形参数，因为它们在塑造底栖生物群落方面发挥了作用。利用建模方法（随机森林），我们将上述数据集结合起来评估人类压力和其他变量对底栖生物群落特征的重要性和影响。我们报告说，在地理上偏远的珊瑚礁上，浅礁底栖生物群落的丰度和丰富度都更高，而且这些群落也更均匀。在MCE均匀性中没有观察到这种模式，而丰富度实际上在偏远的珊瑚礁上更低。值得注意的是，MCE丰度和所有深海模型的解释力都很低，这表明人类压力以外的因素，如深度和地形，正在驱动我们研究地点的群落模式，强调需要全面、多方面的珊瑚礁保护和管理方法。总的来说，我们的研究结果强调，偏远并不能代表人类对mcce的影响减少。考虑到其独特的生物多样性和相关服务，以及它们面临的众多压力，微型生态系统应成为保护的重点。

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引用次数: 0

Effects of Semi-Natural Habitats on Bird Occupancy in Different Intensity Agriculture: A Multi-Species Approach 半自然生境对不同强度农业鸟类占用的影响：多物种分析

IF 4.2 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Diversity and Distributions

Pub Date : 2025-09-26 DOI: 10.1111/ddi.70094

Wenyu Xu, Yongshan Xu, Jiyuan Yao, Weihong Zhu, Haitao Wang

<div> <section> <h3> Aim</h3> <p>Agriculture is a primary factor underlying worldwide declines in biodiversity. Incorporating semi-natural habitat features within agricultural landscapes is considered an effective strategy for mitigating the biodiversity loss associated with agricultural intensification. However, few studies have investigated whether and how the biodiversity-supporting capacity of semi-natural habitats varies across landscape-level agricultural intensity gradients.</p> </section> <section> <h3> Location</h3> <p>Agroecosystems of Central-Eastern Jilin, China.</p> </section> <section> <h3> Methods</h3> <p>The 84 passive acoustic monitors were deployed across agricultural intensity gradients for 30 days, collecting avian vocalisation data from 04:00 to 07:00 on alternate days. The collected avian vocalisation data were processed using BirdNET (an AI-based sound analysis tool) and were complemented by expert verification. We employed multi-species occupancy models to estimate bird occupancy rates, with subsequent analysis examining the relative influence of semi-natural habitats on these rates under different agricultural intensity gradients.</p> </section> <section> <h3> Results</h3> <p>Our results indicated that bird occupancy probabilities were higher in low- and middle-intensity agricultural landscapes compared to high-intensity agricultural landscapes, particularly for habitat edge-dependent insectivores. The supportive role of semi-natural habitats on bird occupancy was strongest in middle-intensity agriculture, with insectivores benefiting most significantly. Specifically, enhancing both the number of semi-natural habitat types and woodland coverage under middle-intensity agricultural practices would benefit various bird guilds. Increased waterbody coverage within farmland ecosystems positively impacted insectivorous birds regardless of agricultural intensity. Additionally, open-habitat species benefit from diversified crop cultivation patterns in low-to-middle intensity systems.</p> </section> <section> <h3> Main Conclusions</h3> <p>Our results demonstrate that enhancing bird occupancy rates by semi-natural habitats depends on both the agricultural intensity context and the functional group. Our findings provide critical evidence for biodiversity conservation strategies in agricultural ecosystems and contribute to reducing geographical biases in agro-ecological research on avifauna.</p> </section> </d

农业是导致全球生物多样性下降的主要因素。在农业景观中融入半自然栖息地特征被认为是缓解农业集约化带来的生物多样性丧失的有效策略。然而，关于半自然生境的生物多样性支持能力是否以及如何在景观水平的农业强度梯度上发生变化的研究很少。吉林中东部农业生态系统定位方法84台被动声监测仪在农业强度梯度上放置30 d，隔日04:00 - 07:00采集鸟类发声数据。收集到的鸟类发声数据使用BirdNET（一种基于人工智能的声音分析工具）进行处理，并辅以专家验证。采用多物种占用模型估算鸟类占用率，并分析了不同农业强度梯度下半自然生境对鸟类占用率的相对影响。结果低、中强度农业景观中鸟类的占用率高于高强度农业景观，特别是对栖息地边缘依赖的食虫动物。半自然生境对鸟类占用的支持作用在中等强度农业中最强，其中食虫动物受益最显著。具体而言，在中等强度的农业实践下，增加半自然栖息地类型的数量和林地覆盖率将使各种鸟类协会受益。农田生态系统水体覆盖率的增加对食虫鸟类产生了积极影响，而与农业强度无关。此外，开放生境物种受益于中低强度系统中多样化的作物种植模式。研究结果表明，提高半自然生境鸟类占用率取决于农业强度背景和功能类群。本研究结果为农业生态系统生物多样性保护策略提供了重要依据，并有助于减少农业生态研究中鸟类的地理偏差。

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引用次数: 0

Cover page 封面页

IF 4.2 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Diversity and Distributions

Pub Date : 2025-09-25 DOI: 10.1111/ddi.70096

The cover image relates to the Research Article https://doi.org/10.1111/ddi.70070 “Direct Integration of Population Genetics and Dynamic Species Distribution Modelling Improves Predictions of Post-Glacial History of Piper nigrum” Photo credit: Sandeep Sen

封面图片与研究文章https://doi.org/10.1111/ddi.70070“种群遗传学和动态物种分布模型的直接整合改善了对Piper nigrum后冰期历史的预测”有关

引用次数: 0

Habitat Protection Alone Is Insufficient: Costa Rican Parrots Thrive in Altered Landscapes but Remain Vulnerable to Poaching 仅靠栖息地保护是不够的：哥斯达黎加鹦鹉在改变的景观中茁壮成长，但仍然容易受到偷猎

IF 4.2 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Diversity and Distributions

Pub Date : 2025-09-24 DOI: 10.1111/ddi.70084

P. Romero-Vidal, J. M. Barbosa, G. Blanco, F. Hiraldo, M. Carrete, J. L. Tella

<div> <section> <h3> Aim</h3> <p>Human population growth and resource overexploitation have induced major changes in global biodiversity. Costa Rica, with 26% of its land area protected, is often cited as a model of environmental conservation. However, conservation efforts have largely focused on habitat preservation, while overharvesting remains an unquantified factor in wildlife decline. Here, we used parrots as a model to assess changes in their presence, abundance and richness in relation to habitat transformation, while also quantifying for the first time the poaching pressure they face, driven by the demand for them as domestic pets.</p> </section> <section> <h3> Location</h3> <p>Costa Rica.</p> </section> <section> <h3> Methods</h3> <p>We conducted a broad-scale survey across the country to simultaneously obtain data on the relative abundance of parrots in different habitats and estimate poaching pressure by recording illegal household pets and parrots seized by authorities. Then, we related the presence, abundance and richness of parrots to habitat characteristics using two complementary approaches (i.e., patches along transects and points where we had detected at least one individual) and examined whether certain species were poached with greater intensity than others.</p> </section> <section> <h3> Results</h3> <p>We found that parrot presence, abundance and richness tend to decrease in modified habitats, particularly agricultural areas, although this trend reverses in human settlements. On the other hand, our surveys revealed near-ubiquitous ownership of native parrots illegally kept as pets, which were recorded in 86.6% of the sampled localities and in 81.5% of the surveyed houses. Several threatened macaw and Amazon species were poached more than expected attending to their abundances in the wild.</p> </section> <section> <h3> Main Conclusions</h3> <p>Although our methodology does not allow for a direct comparison of the impact of habitat loss and poaching, our findings suggest that parrot communities are affected by habitat changes while they can tolerate certain levels of habitat transformation, such as urbanisation. On the other hand, parrot species preferred by people still face intense poaching pressure for the domestic pet trade. Focusing conservation efforts solely on habitat protection will be insufficient to preserve these critical components of tropical ecosystems. More effective measures are needed to curb poaching and addres

目的人口增长和资源过度开发导致全球生物多样性发生重大变化。哥斯达黎加有26%的国土面积受到保护，经常被认为是环境保护的典范。然而，保护工作主要集中在栖息地保护上，而过度捕捞仍然是野生动物减少的一个无法量化的因素。在这里，我们以鹦鹉为模型来评估它们的存在、丰度和丰富度与栖息地变化的关系，同时也首次量化了它们面临的偷猎压力，这是由对它们作为家养宠物的需求所驱动的。地点：哥斯达黎加。方法在全国范围内进行大规模调查，同时获取不同栖息地鹦鹉的相对丰度数据，并通过记录非法家庭宠物和当局查获的鹦鹉来估计偷猎压力。然后，我们将鹦鹉的存在、丰度和丰富度与栖息地特征联系起来，使用两种互补的方法（即，沿着样带的斑块和我们至少检测到一个个体的点），并检查某些物种是否比其他物种被偷猎的强度更大。结果在改良生境中，鹦鹉的数量、丰度和丰富度呈下降趋势，尤其是在农业地区，而在人类住区中，这一趋势则相反。另一方面，我们的调查显示，非法饲养本地鹦鹉作为宠物的情况几乎无处不在，在86.6%的采样地区和81.5%的调查家庭中都有记录。一些受到威胁的金刚鹦鹉和亚马逊物种被偷猎的次数超过了预期，因为它们在野外的数量很多。虽然我们的方法不能直接比较栖息地丧失和偷猎的影响，但我们的研究结果表明，鹦鹉群落受到栖息地变化的影响，同时它们可以忍受一定程度的栖息地转变，如城市化。另一方面，人们喜欢的鹦鹉品种仍然面临着国内宠物贸易的巨大偷猎压力。仅仅把保护工作的重点放在保护生境上是不足以保护热带生态系统的这些关键组成部分的。需要采取更有效的措施来遏制偷猎，并解决将野生鹦鹉作为宠物饲养的根深蒂固的文化传统。

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引用次数: 0

Correction to ‘Migratory Connectivity and Non-Breeding Habitat Segregation Across Biogeographical Scales in Closely Related Seabird Taxa’ 更正“在密切相关的海鸟分类群中跨越生物地理尺度的迁徙连通性和非繁殖栖息地隔离”

IF 4.2 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Diversity and Distributions

Pub Date : 2025-09-23 DOI: 10.1111/ddi.70082

Morera-Pujol, V., Catry, P., Magalhães, M. et al. 2025. “Migratory Connectivity and Non-Breeding Habitat Segregation Across Biogeographical Scales in Closely Related Seabird Taxa.” Diversity and Distributions 31: e70013. https://doi.org/10.1111/ddi.70013.

The affiliation information for author Isabel Afán was incorrect in the published article. The correct affiliation information should be: Institut de Ciències del Mar, CSIC, Barcelona, Spain.

The data availability statement contained erroneous links in the published article. The correct statement should read as follows: ‘The novel code developed for this manuscript can be found at https://github.com/VirginiaMorera/Migratory-connectivity and the tracking data necessary to perform the analyses can be downloaded at https://doi.org/10.5061/dryad.g79cnp5z7. The data on colony locations and breeding populations is available in the Supporting Information of Morera-Pujol et al., 2023. Methods to detect spatial biases in tracking studies caused by differential representativeness of individuals, populations and time. Diversity and Distributions, 29, 19–38. https://doi.org/10.1111/ddi.13642’.

We apologize for this error.

Morera-Pujol， V., Catry， P., magalh， M.等人。“在密切相关的海鸟分类群中，跨越生物地理尺度的迁徙连通性和非繁殖栖息地隔离。”多样性与分布[j]；https://doi.org/10.1111/ddi.70013.The作者Isabel Afán的关联信息在发表的文章中是不正确的。正确的归属信息应该是：CSIC，巴塞罗那，西班牙，马德里城市研究所。数据可用性声明在已发表的文章中包含错误链接。正确的声明应该如下：“为本文开发的新代码可以在https://github.com/VirginiaMorera/Migratory-connectivity上找到，执行分析所需的跟踪数据可以在https://doi.org/10.5061/dryad.g79cnp5z7上下载。关于种群位置和繁殖种群的数据可参见Morera-Pujol等人，2023年的《支持信息》。追踪研究中因个体、群体和时间的差异代表性而引起的空间偏差检测方法。生态学报，29(1):19-38。https://doi.org/10.1111/ddi.13642 '我们为这个错误道歉。

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引用次数: 0