Journal of Biogeography最新文献

{"title":"Invisible Hand of Sampling for Management: Underlying Needs to Survey a Threatened Seabird Can Bias Aggregated Data","authors":"Ryan Baumbusch,&nbsp;Adam Duarte,&nbsp;James T. Peterson","doi":"10.1111/jbi.15068","DOIUrl":"https://doi.org/10.1111/jbi.15068","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Surveying for a species of concern ahead of proposed activities that alter its habitat is routine practice in conservation and management. Such surveys may accumulate large datasets that could further elucidate trends in abundance and distribution. However, the as-needed surveying of proposed activities may impart a sample site selection bias on the data if used for another purpose. Management of a threatened, forest-nesting seabird offered an example of this. Here we assessed how resource management planning and survey requirements can bias clearance monitoring survey data collected prior to proposed timber harvests, if those data are used for other purposes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Oregon and Washington, USA.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Marbled Murrelet (<i>Brachyramphus marmoratus</i>).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>To assess how timber planning and other factors influenced marbled murrelet survey location selection, we used logistic regression models to examine habitat associations of marbled murrelet survey sites (<i>n</i> = 9178) encompassing proposed timber harvests, and the survey stations (<i>n</i> = 38,923) therein, across the murrelet's inland range in Washington and Oregon, USA between 1989 and 2021. We then simulated the effect this selective sampling might have on assessments of occupancy trends.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Most habitat characteristics considered did influence where surveys were located, with distance to roads often being the strongest predictor of survey location. The strength of selection for each covariate changed over time, such that a habitat characteristic strongly influenced location selection in a year but was less influential in another year. The simulation analysis suggested that the non-random selection of survey sites could profoundly bias assessments of occupancy trends.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>When using these clearance monitoring survey data– or any data–beyond their original purpose, careful consideration should be given to the scope of inference provided and analytical methods used, to ensure that observed trends are the product of biological processes and not biased by sampling artefacts.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 3","pages":"699-711"},"PeriodicalIF":3.4,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380151","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}

{"title":"Climate Change Effects on the Only Western Palearctic Plethodontids: Range Changes and Possible Depletion of Intraspecific Genetic Diversity","authors":"Mattia Iannella,&nbsp;Francesco Cerasoli,&nbsp;Enrico Lunghi,&nbsp;Giulia Console,&nbsp;Maurizio Biondi,&nbsp;Neftalí Sillero","doi":"10.1111/jbi.15064","DOIUrl":"https://doi.org/10.1111/jbi.15064","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Aim&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Amphibians are particularly sensitive to rapid climatic shifts, due to their eco-physiology, life history traits and high frequency of narrowly distributed species. The genus &lt;i&gt;Speleomantes&lt;/i&gt; encompasses the only extant Western Palearctic plethodontids, with three species occurring in peninsular Italy and the remaining five endemic to Sardinia Island.&lt;/p&gt;\u0000 \u0000 &lt;p&gt;Given the restricted ranges of &lt;i&gt;Speleomantes&lt;/i&gt; species and their vulnerability to environmental change, we implemented Ecological Niche Models (ENMs) to estimate the likely impacts of various global warming scenarios on the extent and geographical location of climatically suitable areas.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Time Period&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Current, with ENMs projected to 2030, 2050 and 2070 under alternative Shared Socioeconomic Pathways.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Location&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Italian Peninsula and Sardinia Island.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Major Taxa Studied&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;&lt;i&gt;Speleomantes&lt;/i&gt; Dubois 1984 (Caudata: Plethodontidae).&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Methods&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Ensembles of ENMs were fitted for each &lt;i&gt;Speleomantes&lt;/i&gt; species, using the ‘biomod2’ modelling platform in R environment. Then, post-modelling analyses were applied in GIS environment to highlight: (i) the primary geographic direction of predicted suitability shifts for each species and (ii) the proportion of stable, gained and lost suitable areas for each genetic lineage of the single species.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Results&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;We found a noticeable shrinking of suitable areas for all &lt;i&gt;Speleomantes&lt;/i&gt; species, being particularly extensive under ‘business-as-usual’ scenarios for the Sardinian ones. Moreover, core suitable areas were predicted to shift for most species and suitability losses emerged to differently affect distinct genetic lineages, posing additional challenges for designing effective conservation measures.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Main Conclusions&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;The predicted shrinkage and shifting of climatically suitable areas for most &lt;i&gt;Speleomantes&lt;/i&gt; species point to the urgency of evaluating in due time alternative conservation strategies for these endemic urodeles, to prevent losses of taxonomic and genetic dive","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 3","pages":"686-698"},"PeriodicalIF":3.4,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.15064","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380453","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}

{"title":"What Defines the Groupwise Compositional Turnover of Eurasian Phylloscopus Warblers? Insights From Zeta (ζ) Diversity and MS-GDM","authors":"Tushar Parab,&nbsp;Ankit Singh,&nbsp;Niket Alashi,&nbsp;Nikhil Modak,&nbsp;Amar Paul Singh,&nbsp;Maitreyee Bhave,&nbsp;Shashank Nagarale,&nbsp;Salvador Lyngdoh","doi":"10.1111/jbi.15060","DOIUrl":"https://doi.org/10.1111/jbi.15060","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Aim&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;This study examines how environmental variables determine the co-occurrence of &lt;i&gt;Phylloscopus&lt;/i&gt; warblers. It was carried out using an integrated zeta (ζ) diversity estimation method and multisite generalised dissimilarity modelling (MS-GDM).&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Location&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;&lt;i&gt;Phylloscopus&lt;/i&gt; species spanning Eurasia.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Study Period&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Observations made during the breeding season for each species from 2014 to 2023.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Major Taxa Studied&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;We specifically focussed on complexes/superspecies groups within the genus &lt;i&gt;Phylloscopus&lt;/i&gt; to address this question. The groups defined on recent phylogeny are the &lt;i&gt;P. castaniceps&lt;/i&gt; complex, &lt;i&gt;P. cantator&lt;/i&gt; group, &lt;i&gt;P. borealis&lt;/i&gt; group, &lt;i&gt;P. burkii&lt;/i&gt; complex, &lt;i&gt;P. affinis&lt;/i&gt; group, &lt;i&gt;P. proregulus&lt;/i&gt; group, &lt;i&gt;P. inornatus&lt;/i&gt; complex, &lt;i&gt;P. davisoni&lt;/i&gt; group, &lt;i&gt;P. fuscatus&lt;/i&gt; group, &lt;i&gt;P. collybita&lt;/i&gt; group, &lt;i&gt;P. trochiloides&lt;/i&gt; complex and &lt;i&gt;P. tenellipes&lt;/i&gt; group.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Methods&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;We used ζ diversity estimations to quantify the extent of compositional turnover and diversity across multiple sites. We further used MS-GDM to gain insights into how various environmental variables impact species composition.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Results&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;The composition of the groups we analysed is shaped by environmental conditions. The normalised difference snow index considerably impacts turnover within the &lt;i&gt;P. castaniceps&lt;/i&gt; complex, with species such as &lt;i&gt;P. castaniceps&lt;/i&gt; showing adjacency to snowy areas. Elevation and gravity anomalies play an essential role in the turnover of species in the &lt;i&gt;P. cantator&lt;/i&gt; and &lt;i&gt;P. borealis&lt;/i&gt; groups. The prevalence of positive gravity anomalies (variations in gravitational strength) in hilly areas determines the compositional differences within the &lt;i&gt;P. burkii&lt;/i&gt; complex. The turnover of the &lt;i&gt;P. proregulus&lt;/i&gt; group is influenced by both artificial night lights and gravitational anomalies. The turnover in the &lt;i&gt;P. trochiloides&lt;/i&gt; complex and the &lt;i&gt;P. davisoni&lt;/i&gt;, &lt;i&gt;P. collybita&lt;/i&gt; and &lt;i&gt;P. tenellipes&lt;/i&gt; groups is influenced by soil moisture, elevation, gravity anomalies and aridity index, emphasising the varied ecological niches of these species.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Conclusions&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;This study improves our unders","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 3","pages":"657-669"},"PeriodicalIF":3.4,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380469","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}

{"title":"Impact of Pleistocene Climate on Diversification and Distribution of Congeneric Freshwater Crustacean Species","authors":"Gislaine Puli,&nbsp;Sandro Santos,&nbsp;Bianca Laís Zimmermann,&nbsp;Alberto Senra Gonçalves,&nbsp;Marlise Ladvocat Bartholomei-Santos","doi":"10.1111/jbi.15065","DOIUrl":"https://doi.org/10.1111/jbi.15065","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Aim&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;The climatic oscillations of the glacial–interglacial cycles significantly influenced species diversification, playing an essential role in shaping the current patterns of biodiversity. However, the effects of the Pleistocene climate on species diversification and their current distribution are poorly understood for the Southern Hemisphere and some taxonomic groups, such as invertebrates. Here, we explore the role of Pleistocene climate changes in the diversification and distribution of four species of South American freshwater crustaceans.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Location&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Southern South America.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Taxon&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Genus &lt;i&gt;Aegla&lt;/i&gt; (Aeglidae).&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Methods&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;We performed phylogenetic analyses, estimated genetic diversity and neutrality indices for &lt;i&gt;Aegla alacalufi&lt;/i&gt;, &lt;i&gt;Aegla neuquensis&lt;/i&gt;, &lt;i&gt;Aegla platensis&lt;/i&gt; and &lt;i&gt;Aegla uruguayana&lt;/i&gt; using nuclear and mitochondrial sequences. We used the mitochondrial genes to estimate divergence times, calculate historical demography and reconstruct the ancestral area range. We also estimated current and past potential distributions using ecological niche modelling.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Results&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Although all species studied had their diversification influenced by Pleistocene glacial cycles, the Patagonian species &lt;i&gt;A. alacalufi&lt;/i&gt; and &lt;i&gt;A. neuquensis&lt;/i&gt;, which were directly influenced by the glacial ice cap, appear to have benefited from lower sea levels and melting of glaciation ice. As for the species &lt;i&gt;A. platensis&lt;/i&gt; and &lt;i&gt;A. uruguayana&lt;/i&gt;, their diversification was affected by the dry and cold climate on the continent during the glacial period.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Main Conclusions&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Our study unveils the intricate interplay between Pleistocene climatic fluctuations and the evolutionary history of freshwater crustaceans in South America. Distinct phylogeographic patterns were observed in &lt;i&gt;Aegla&lt;/i&gt;. Some underwent significant diversification due to glaciation, while the cold, arid conditions of the continent shaped others. These findings underscore the crucial role of past climate dynamics in the distribution and genetic diversity of species. As freshwater ecosystems confront escalating threats, our study highlights the urgency for conservation measures and continued research to unveil species' adaptive mechanisms in the face of climate change.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 ","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 3","pages":"670-685"},"PeriodicalIF":3.4,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380473","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}

{"title":"Phylogenetic Diversity of Live-Bearing Fishes (Poeciliidae) Peaks on Peninsulas, Isthmuses, and in Deserts","authors":"Roni Fernando Gómez-Martínez,&nbsp;Wilfredo A. Matamoros,&nbsp;Christopher W. Hoagstrom,&nbsp;Jesús Manuel López-Vila,&nbsp;Esteban Pineda Diez de Bonilla","doi":"10.1111/jbi.15066","DOIUrl":"https://doi.org/10.1111/jbi.15066","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Poeciliids are ecologically important, are widely used as pets, and also have value as model organisms. To understand diversity within this family, we study their phylogenetic diversity (PD) at regional and local scales to delimit bioregions and identify patterns of biodiversity.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>The Americas.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Poeciliidae (Actinopterygii: Cyprinodontiformes).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We expanded an existing dated phylogeny from 164 to 261 species with distributional data for 1^o × 1^o latitude × longitude cells (~111 km²) and conducted a cluster analysis (phylo-jaccard distance) to delineate bioregions. For individual cells, we mapped species richness (SR), phylogenetic diversity (PD), weighted endemism (WE) and phylogenetic endemism (PE). We used randomisation tests to map phylogenetic clustering and over-representation of short-branch species by cell. We used categorical analysis of neo- and palaeo-endemism to map neo-, palaeo-, mixed and super (mixed) endemism.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We delineated six bioregions. Highest regional species density and density of PD occurred on the Isthmus of Panamá (IOP). At the grid-cell scale, the Grijalva–Usumacinta drainage is a hotspot for SR, PD, PE and WE; the IOP has high PD and PE; the Isthmus of Tehuantepec (IOT) has high PD, WE and moderately high SR; and western Hispaniola has high WE and moderately high SR. The Grijalva–Usumacinta drainage also includes cells of super (mixed) and palaeoendemism, while mixed endemism is widespread in Middle America and the Greater Antilles. Phylogenetic clustering is widespread, whereas over-representation of short-branch species is concentrated in the Chihuahuan Desert–Sierra Madre Oriental region and in western Hispaniola, both hotspots of neoendemism.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>We found widespread diversification of genera intermixed with relict species (mixed endemism). Furthermore, SR and PD were strongly correlated. Centres of endemism include the Chihuahuan Desert–Sierra Madre Oriental, western Hispaniola, the IOT, the IOP and (most of all) the Grijalva–Usumacinta drainage. However, conservation efforts must occur within each bioregion and for each genus.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 3","pages":"641-656"},"PeriodicalIF":3.4,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380253","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}

{"title":"Ecohydrological Response of a Tropical Peatland to Rainfall Changes Driven by Intertropical Convergence Zone Variability","authors":"Graeme T. Swindles,&nbsp;Bronwen S. Whitney,&nbsp;Mariusz Gałka,&nbsp;Donal J. Mullan,&nbsp;Rob Low,&nbsp;Angela Gallego-Sala,&nbsp;R. Omar Lopez,&nbsp;Elliot Kilbride,&nbsp;Conor Graham,&nbsp;Andy J. Baird","doi":"10.1111/jbi.15051","DOIUrl":"https://doi.org/10.1111/jbi.15051","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Tropical peatlands are globally significant carbon stores, increasingly threatened by human activities and climate change. However, their ecohydrological responses to shifting water availability remain poorly understood. In this study, we investigate the connections between climate change, hydrology and vegetation dynamics in a coastal tropical peatland in Panama, aiming to understand the effects of future drying on peatland dynamics.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Bocas del Toro, Panama (9°22′54″N, 82°21′59″W).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Angiosperms.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>High-resolution multiproxy palaeoecological data, including pollen and plant macrofossils (vegetation), testate amoebae (water-table depth) and physical peat properties, are used to explore the relationships between climate change, hydrology and vegetation in a coastal tropical peatland over the past 700 years. Downscaled climate simulations are integrated with this process-based understanding to project the likely future responses of this coastal peatland to climate change.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We identify a clear connection between precipitation variability, driven by shifts in the Intertropical Convergence Zone and water-table dynamics, which subsequently influence changes in the peatland vegetation mosaic. Historical drier periods are marked by the expansion of shrub communities into the open peatland plain.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Palaeoecological studies incorporating climate and hydrological proxies are essential for understanding both recent and future ecohydrological dynamics of tropical peatlands. Our findings suggest that in response to future climate change, water tables will lower and shrub communities will expand due to rising temperatures and reduced precipitation. Additionally, future sea-level rise, combined with declining rainfall, may result in seawater intrusion and significant vegetation shifts in coastal tropical peatlands.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 3","pages":"621-628"},"PeriodicalIF":3.4,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.15051","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380460","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}

{"title":"Citizen Observations Shed New Light on Geographic Variation in Colour Polymorphism of a Widespread Reptile","authors":"Niels Jansen,&nbsp;Nick Pruijn,&nbsp;Martin Mayer","doi":"10.1111/jbi.15062","DOIUrl":"https://doi.org/10.1111/jbi.15062","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Aim&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Colour polymorphism within ectothermic species and populations is shaped by multiple selection pressures that can vary geographically. Here, we tested different hypotheses to better understand this variation in colour polymorphism. The thermal melanism hypothesis predicts that darker colouration is beneficial in colder regions, due to enhanced heat absorption, while the predation pressure hypothesis predicts that melanistic individuals are exposed to a higher predation risk because they are more visible to predators. Additionally, temperature, land cover and predation pressure could interact to influence colour morph frequencies due to trade-offs regarding thermoregulation and predation risk.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Location&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Eurasia.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Taxon&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;European adder (&lt;i&gt;Vipera berus&lt;/i&gt;).&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Methods&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;We compiled a dataset of &gt; 7000 citizen observations across the entire distribution of the European adder, scoring adder colouration to test the above-mentioned hypotheses concerning geographic variation in colour polymorphism, using Bayesian generalised nonlinear regression models.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Results&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;We found support for the thermal melanism hypothesis, with the frequency of melanism increasing in colder regions. Moreover, in colder areas, the proportion of melanistic snakes increased with avian predator density, whereas this pattern was weaker in warmer areas, potentially because melanistic snakes spend less time basking and therefore experience reduced predation rates compared to brown and grey snakes. Finally, we found the proportion of melanistic individuals to decline at higher elevations (&gt; 1000 m), potentially due to increased access to basking opportunities or because higher elevations facilitate easier detection of melanistic snakes by predators.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Main Conclusions&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Combined, our results emphasise the large potential of citizen observations to obtain novel insights concerning biogeographic patterns of morphological divergence in colouration. Our findings increase the understanding of the underlying mechanisms affecting colour polymorphism in ectothermic animals, providing valuable information to predict how species might respond to global change.&lt;/p&gt;\u0000 &lt;/sec","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 3","pages":"629-640"},"PeriodicalIF":3.4,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.15062","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380459","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}

{"title":"Changes in Distribution Ranges of Abies Species Dominating in the Forests of Northeast Asia Since the Last Glacial Maximum","authors":"Tatyana Petrenko,&nbsp;Violetta Dzizyurova,&nbsp;Jan Altman,&nbsp;Jiří Doležal,&nbsp;Dmitriy Kislov,&nbsp;Kirill Korznikov","doi":"10.1111/jbi.15057","DOIUrl":"https://doi.org/10.1111/jbi.15057","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Climate variations within the stadial–interstadial cycles drive shifts in the distribution of forest dominants. This study examines how climate dynamic alters the distribution ranges of two boreal and one cold-temperate <i>Abies</i> species dominating in Northeast Asia.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Northeast Asia: China, Japan, Korea and Russia.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p><i>Abies nephrolepis</i>, <i>A. sachalinensis</i> (sect. <i>Balsamea</i>) and <i>A. holophylla</i> (sect. <i>Pseudopicea</i>).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We developed climate envelope species distribution models (SDMs) using warmth and coldness indices, the continentality index, and proxies of rain and snow precipitation indices. We interpolated SDMs on reconstructed climates for the Last Glacial Maximum (LGM) and the Holocene Climatic Optimum (HCO) and to predicted climates for 2070 under global warming scenarios RCP2.6 and RCP8.5.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>During the LGM, the climatic optimum for all species covered extensive areas on the shelves of the Japanese and Yellow Seas, facilitated by the global sea level drop. The interglacial climatic optimum supports the expansion of <i>A. nephrolepis</i> and <i>A. sachalinensis</i> compared to the LGM, whereas the range of <i>A</i>. <i>holophylla</i> climatic niche range experiences a reduction.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Our findings highlight the significant impact of climatic oscillations on the spatial distribution and ecological dynamics of <i>Abies</i> species in Northeast Asia. The contrasting responses of boreal and temperate fir species to glacial and interglacial periods underscore the complex interplay between climate change and the distribution of forest dominants. Projections under future warming scenarios suggest that <i>Abies</i> species will face further range shifts, emphasising the need for adaptive forest management and conservation strategies, especially in the southern part of their distribution.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 3","pages":"599-620"},"PeriodicalIF":3.4,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143381009","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}

{"title":"Forest Microclimate as a Driver of Epiphytic Bryophyte Diversity Along a Subtropical Elevational Gradient","authors":"Zun Dai,&nbsp;Shi-chen Xing,&nbsp;S. Robbert Gradstein,&nbsp;Min Li,&nbsp;Shu-wen Tu,&nbsp;Xing Chen,&nbsp;Xue Yao,&nbsp;Shuang Gao,&nbsp;Rui-ping Shi,&nbsp;Lu-yan Tang,&nbsp;Ran Zhang,&nbsp;Zhao-chen Zhang,&nbsp;Ming-shui Zhao,&nbsp;You-fang Wang,&nbsp;Jian Zhang,&nbsp;Jian Wang","doi":"10.1111/jbi.15054","DOIUrl":"https://doi.org/10.1111/jbi.15054","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Considering the importance of microclimate in maintaining the diversity of epiphytic bryophytes, we investigated epiphytic bryophytes along an elevational gradient in the subtropical forest of eastern China to unravel the diversity patterns of epiphytic liverworts and mosses along the elevational gradients and the roles of forest microclimates, topographic variables and host plant composition attributes in shaping these elevational diversity patterns.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Tianmushan National Nature Reserve, Zhejiang, China.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Epiphytic bryophytes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Species diversity patterns of liverworts and mosses were compared based on an inventory of 16 plots along an elevational gradient from 367 to 1470 m. In situ microclimatic data of air temperature and moisture were collected under constant monitoring for over 3 years. Spatial linear models and structural equation models were used to assess the relative roles of the environmental variables in shaping the patterns of species diversity along elevation.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We found that epiphytic liverwort and moss richness showed different elevational patterns; overall richness patterns of epiphytic bryophytes were largely driven by mosses. Epiphytic mosses exhibited a decline, followed by a hump-shaped pattern of species richness with increasing elevation, while epiphytic liverworts showed a mid-elevation plateau with a richness maximum between 800 and 1300 m. Forest microclimate, topography and host plant composition attributes influence epiphytic moss and liverwort patterns differently and interact in a complex way. Overall, species richness of epiphytic liverworts was most strongly affected by microclimate (mean annual air temperature of growing season) and of epiphytic mosses richness by topography (slope). Further, epiphytic liverwort species richness was more influenced by temperature than moisture.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>This study highlights the importance of collecting climatic factors at a fine scale (microhabitats) for understanding the patterns and drivers of bryophyte diversity. Further, our findings demonstrate the differences between liverworts and mosses in terms of their response to different environments in the forest ecosystem.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 3","pages":"587-598"},"PeriodicalIF":3.4,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143381049","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}

{"title":"Similar, but Not the Same: Time and Mode of Climatic Niche Evolution in a Highly Endemic Lineage","authors":"Patricia Padilha,&nbsp;Fernanda Thiesen Brum,&nbsp;Renato Mello-Silva,&nbsp;Isaac Sacramento,&nbsp;Suzana Alcantara","doi":"10.1111/jbi.15048","DOIUrl":"https://doi.org/10.1111/jbi.15048","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Plant lineages are disproportionally diverse in areas characterised by specific climatic regimes. The <i>campos rupestres</i> habitats in the mountains of Eastern/Central Brazil, for instance, display huge plant endemism and high precipitation seasonality. The genus <i>Vellozia</i> is an emblematic group in there, with most species being endemic and few occurring disjunctively across mountain outcrops of the Neotropics. We aim to test the climate conservatism in the genus, as suggested by its high levels of endemism.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Neotropic.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Genus <i>Vellozia</i> (Velloziaceae, monocots).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We combined MAXENT ecological niche models (ENM) and phylogenetic comparative analyses. Niche overlap between species was estimated based on the environmental similarity and the spatial overlap projected by the ENM. We also traced the climatic niche in the environmental space to describe how its divergence accumulated through time.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We found varying levels, from 16% to 100%, of species pairs displaying niche overlap across distinct lineages of the genus. When niches overlap, they are more similar than expected by chance and not due to habitat availability, suggesting habitat selection. Niche similarity estimates in both ecological and geographical space did not exhibit conserved phylogenetic signals. There was an expressive disparification in the climatic niches in the last 5 m.y., decoupled from the earlier peaks of lineages diversification.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Contrary to the expected, we found labile and fast evolution of climatic niches, implying that endemisms do not result from climate niche conservatism in <i>Vellozia</i>. The most diverse clade of <i>Vellozia</i> occupies cooler and wetter environments than the ancestral and other extant lineages of the genus. This pattern contrasts with the historical climatic turnover, for example, cooling-arid vs. warming-wet periods, established since the Pliocene glacial cycles. Moreover, it also poses additional challenges for this lineage and its associated habitats in the face of the current climate change.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 3","pages":"571-586"},"PeriodicalIF":3.4,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143381045","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}