Journal of Biogeography最新文献

{"title":"Disentangling the Evolutionary History of the Woody Species in Earth's Most Diverse Tropical Savanna","authors":"Vanessa Pontara, Kyle G. Dexter, Vanessa Leite Rezende, Valéria Flávia Batista da Silva, Prímula Viana Campos, Marcelo Leandro Bueno","doi":"10.1111/jbi.15160","DOIUrl":"https://doi.org/10.1111/jbi.15160","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>We investigate the evolutionary structure of vegetation assemblages in the Cerrado Domain, the main extent of savanna in the American Tropics, a biodiversity hotspot, to understand the role of ecological and geographical factors in constraining plant diversification and shaping biogeographic patterns across this complex mosaic of environments. We test the following predictions: (1) savanna assemblages form a distinct evolutionary group, rather than grouping with forest assemblages from adjacent biogeographic regions; (2) moist forests contain the highest phylogenetic diversity, followed by dry forests and savannas and (3) edaphic variables are stronger predictors of evolutionary group differentiation than climatic variables.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Cerrado, Brazil.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Our data set comprises 3072 tree species, belonging to 656 genera and 151 families, found across 1165 assemblages. We used a phylogenetically informed ordination analysis to place assemblages in a multivariate space, followed by <i>K</i>-means clustering to identify the main evolutionary groups of tree assemblages. To determine which environmental variables were associated with the evolutionary groups found, we implemented classification tree approaches. We quantified both the unique and shared phylogenetic diversity among evolutionary groups and identified the lineages most strongly associated with each evolutionary group using an indicator analysis.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We find a clear evolutionary differentiation between savanna and forest assemblages, pointing to the importance of fire and water availability in driving turnover in evolutionary lineage composition of tree communities in the Cerrado Domain. When dividing assemblages into three evolutionary groups, the forest group splits into deciduous versus evergreen/semideciduous subgroups. The evergreen and semideciduous forests harbour the highest overall and unique phylogenetic diversity, and deciduous forests the second highest, but the savanna group also contains a significant portion of unique woody angiosperm evolutionary diversity.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>We identified that savannas assemblages constitute a distinct evolutionary group. Tree species that can inhabit fire-prone areas belong to a restricted set of phylogenetic lineages, giving the savannas in the Cerrado Domain","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.15160","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612034","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":"Did Hainan Island (Southern China) Undergo Significant Cenozoic Tectonic Displacement, and Impact Its Biota's Sourcing and Evolution?","authors":"Pei-Han Huang,&nbsp;Yi-Gang Song,&nbsp;Jie Li,&nbsp;Hong-Hu Meng","doi":"10.1111/jbi.15168","DOIUrl":"https://doi.org/10.1111/jbi.15168","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>A significant Cenozoic tectonic displacement of Hainan Island has been proposed, suggesting that the island underwent southeastward movement from an Eocene connection with Vietnam and Guangxi to its current location. This hypothesis has been adopted in some studies to explain the biotic origin of Hainan Island. In this study, we aim to critically evaluate the validity of this hypothesis based on available evidence.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Hainan Island and its nearby areas.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>No specific taxon.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We reviewed the relevant literature and examined the geological, palaeomagnetic, and biological evidence for the proposed tectonic displacement.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We found that the proposed drift scenario primarily stemmed from palaeomagnetic estimates and simplified geological schematic diagrams, neither of which provided robust evidence or a comprehensive explanation for such movement. Our evaluation incorporating geological, palaeomagnetic, and biological data reveals no definitive evidence for large-scale displacement.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Given the complex biogeographic patterns of Hainan Island, we argue that discussions on its origin and evolution should adopt a more cautious attitude, avoiding reliance on assumed drift mechanisms without substantial supporting evidence.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612033","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":"Climbing Higher: Exploring Northern Andean Origin and Non-Floral Trait Evolution in a Rapid, Recent Angiosperm Radiation","authors":"Ajith Ashokan,&nbsp;Justin C. Bagley,&nbsp;Nathan Muchhala","doi":"10.1111/jbi.15142","DOIUrl":"https://doi.org/10.1111/jbi.15142","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>The centropogonid clade comprising <i>Burmeistera</i> H.Karst. &amp; Triana, <i>Centropogon</i> C.Presl and <i>Siphocampylus</i> Pohl stands out as one of the most rapid plant radiations in the Neotropics. We investigated the origin and diversification of <i>Burmeistera</i> to enhance our understanding of fruit evolution and other non-floral traits in the genus. By exploring the interplay of morphological, ecological and geographical factors, we sought to provide new insights into how these elements have influenced the evolutionary trajectory of <i>Burmeistera</i>.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Neotropics.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Time Period</h3>\u0000 \u0000 <p>Late Pliocene to present.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p><i>Burmeistera</i> H.Karst. &amp; Triana (Lobelioideae: Campanulaceae).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Using Hyb-Seq data from 329 nuclear loci, we reconstructed a phylogenetic tree of <i>Burmeistera</i> using maximum likelihood in RAxML and calibrated the final tree with prior age estimates for the Lobelioideae. Additionally, we estimated the species tree in ASTRAL and performed various phylogenetic comparative analyses to explore the historical biogeography and evolution of non-floral traits across <i>Burmeistera</i>.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p><i>Burmeistera</i> originated in the Western Cordillera of the Colombian Andes, with species dispersing to the rest of the Northern Andes and Central America between the Late Pliocene and Mid-Pleistocene. Inflated fruits have evolved multiple times in the genus, with their distribution varying by region but reaching the highest proportion in the eastern slopes of the Andes. Higher elevations and larger fruit sizes both increased diversification, especially in a late-branching clade characterised by inflated berries and a climbing habit, which underscores the role of these traits in driving diversification.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Studies of diverse but overlooked taxa, such as <i>Burmeistera</i>, can greatly aid our understanding of the ecology and evolution of Neotropical cloud forest ecosystems.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612031","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":"So Young, So Rich: Habitat Shifts Combined With Trait Evolution Promoted Species Radiation in Senecio in the Andes","authors":"Luciana Salomón,&nbsp;Juan Manuel Gorospe,&nbsp;Tomáš Fér,&nbsp;Filip Kolař,&nbsp;Petr Sklenář,&nbsp;Roswitha Schmickl","doi":"10.1111/jbi.15161","DOIUrl":"https://doi.org/10.1111/jbi.15161","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 outstanding Andean biodiversity has been linked to the occurrence of evolutionary radiations that are common among high-elevation plant lineages. One of the most iconic examples is found in the species-rich genus &lt;i&gt;Senecio&lt;/i&gt;, with an impressive variation in growth forms and habitat preference. Here, we use Hyb-Seq to overcome the lack of phylogenetic resolution found in previous studies with the aim of disentangling the processes shaping &lt;i&gt;Senecio's&lt;/i&gt; hyper-diversity in the Andes, including the evolution of woodiness, growth form and habitat preference.&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;Central and Northern Andes.&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;&lt;i&gt;Senecio&lt;/i&gt; ser. &lt;i&gt;Culcitium.&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;Hyb-Seq data for 104 accessions of &lt;i&gt;Senecio&lt;/i&gt; were newly generated and analysed using a data analysis workflow that utilises paralogs for phylogenetic reconstruction. The robustness of the species tree under different missing data treatments was investigated, and the phylogeny was dated. The role of hybridisation in the diversification of this lineage was addressed. The evolution of morphological key features and changes in habitat preferences were evaluated. In addition, the association of these features with diversification rate heterogeneity was tested.&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;&lt;i&gt;Senecio&lt;/i&gt; ser. &lt;i&gt;Culcitium&lt;/i&gt; is a monophyletic lineage, likely of a Pleistocene origin. Hybridisation, possibly promoted by altitudinal range shifts during the Pleistocene climatic oscillations, played an important role in its evolution. We found evidence for several events of south-to-north migration from the puna on the Central Andes to the páramo on the Northern Andes. One of these migrations to the páramo resulted in a dramatic species diversification. Habitat changes from the páramo to the montane forest occurred multiple times and were associated with growth form shifts.&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;With a net diversification rate of 2 species per million years, high-elevation Andean &lt;i&gt;Senecio&lt;/i&gt; is among the fastest diversifying lineages documented so far in the region. Frequent shifts in woodiness, growth form, and habitat played a crucial role in the diversification of this lineage.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.15161","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612032","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":"Complete Mitochondrial Genomes Provide Evidence of a Killer Whale Refugium Off the Coast of Japan During the Last Glacial Maximum","authors":"Olga A. Filatova,&nbsp;Ivan D. Fedutin,&nbsp;Ekaterina A. Borisova,&nbsp;Ilya G. Meschersky,&nbsp;Marina V. Shitova,&nbsp;Erich Hoyt,&nbsp;Andrew D. Foote","doi":"10.1111/jbi.15159","DOIUrl":"https://doi.org/10.1111/jbi.15159","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>During glacial periods, highly mobile species often shifted to warmer, ice-free regions known as refugia, which frequently maintained higher genetic diversity than newly colonised areas after glacial retreat. We analyse complete mitogenome sequences from 11 killer whale samples in Nemuro Strait to test the hypothesis that waters around Japan may have preserved a refugial population of killer whales that retained historical genetic diversity.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Western North Pacific.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p><i>Orcinus orca ater</i>, Cetacea.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Sequencing of complete mitochondrial genomes (16,387 bp) from 11 killer whale samples collected in the Nemuro Strait, southern Okhotsk Sea. Distribution of haplotypes in the social network was visualised using the data on social associations. The probability of individuals belonging to one or more possible reproductive groups was estimated based on 17 microsatellite loci.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Seven samples shared a haplotype common in the western North Pacific, one had a haplotype previously found only in the eastern North Pacific, and three exhibited novel haplotypes. Killer whales with different haplotypes were connected into a single social network, but some degree of social segregation is evident within the network. No significant genetic clustering based on microsatellite markers was detected between Nemuro Strait and areas near the Kamchatka Peninsula.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>With five distinct mitogenomes, Nemuro Strait now ranks second in mitogenomic diversity after the central Aleutian Islands. These findings support the hypothesis of a glacial refugium off Japan preserving a portion of pre-glacial genetic diversity. The lack of genetic clustering between Nemuro Strait and areas near the Kamchatka Peninsula indicates that all R-type killer whales in the western North Pacific belong to a single population. The low mitogenomic diversity north of Nemuro Strait likely reflects a founder effect, where a few groups colonised the region after the LGM, while most of the population with higher genetic diversity remained near Japan.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.15159","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144611989","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":"From Genes to Shapes: Exploring Local Adaptation in Carpathian Ox-Eye Daisies","authors":"Kamil Konowalik,&nbsp;Olga Łuczak","doi":"10.1111/jbi.15158","DOIUrl":"https://doi.org/10.1111/jbi.15158","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;Historical processes have shaped the Carpathian biogeography, yet ongoing evolutionary forces continue to drive population differentiation. We aimed to test whether local adaptation in the Carpathian subendemic &lt;i&gt;Leucanthemum rotundifolium&lt;/i&gt; correlates with genetic, morphological and environmental factors, and to assess how these patterns relate to established taxonomic concepts.&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;The Carpathian Mountains, Central Europe.&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;The genus &lt;i&gt;Leucanthemum&lt;/i&gt; (Asteraceae), with a focus on &lt;i&gt;L. rotundifolium&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 analysed multiple populations of &lt;i&gt;L. rotundifolium&lt;/i&gt; across its Carpathian distribution. Each individual was characterised using a comprehensive set of measures encompassing: (1) genetic variation via SNP, Silico-DArT and chloroplast markers; (2) morphological traits, including detailed measurements and shape analysis of involucral bracts; and (3) environmental variables such as climate, soil characteristics, topography and indicators of human disturbance. We first evaluated how these data collectively distinguish different &lt;i&gt;Leucanthemum&lt;/i&gt; species and align with current taxonomic concepts. Next, we examined how genetic, morphological and environmental factors interact within &lt;i&gt;L. rotundifolium&lt;/i&gt; to differentiate individuals and populations.&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;Taxonomically recognised species within &lt;i&gt;Leucanthemum&lt;/i&gt; were supported by distinct genetic signatures (particularly SNPs), environmental preferences and key morphological traits (notably the measurements of the upper row of involucral bracts). At the intraspecific level, &lt;i&gt;L. rotundifolium&lt;/i&gt; populations were primarily differentiated by genetic variation (across all markers) and by environmental factors. In contrast, morphological variability showed no strong spatial signal, though subtle tendencies toward differentiation emerged when morphological traits were interpreted in conjunction with consistent genetic and environmental clustering.&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 findings highlight that the taxonomy of &lt;i&gt;Leucanthemum&lt;/i&gt; corresponds closely with genetic, environmental and certain morphological parameters. Within &lt;i&gt;L. rotundifolium&lt;/i&gt;, local","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.15158","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144611988","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":"Leaf and Root Traits Show Contrasting Resource Exploitation Strategies, but Converge Along Elevation in the Hengduan Mountain Forests","authors":"Jie Song,&nbsp;Sebastian Seibold,&nbsp;Liang-Liang Ma,&nbsp;Jia-Yun Zou,&nbsp;Jie Liu,&nbsp;Ming-Shu Zhu,&nbsp;Wei Zheng,&nbsp;Zhi-Qiong Mo,&nbsp;Sheng-Ping Ming,&nbsp;Jin Li,&nbsp;Kun Xu,&nbsp;De-Zhu Li,&nbsp;Lian-Ming Gao,&nbsp;Ya-Huang Luo","doi":"10.1111/jbi.15157","DOIUrl":"https://doi.org/10.1111/jbi.15157","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>The variations of leaf and root traits in communities are associated with above- and below-ground resource exploitation strategies and are used to infer community assembly processes along environmental gradients. However, little is known about variations in leaf and root traits and their drivers along elevations in mountain forests.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Yulong Mountain, southeastern Hengduan Mountains, Southwest China.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Seed plants.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We measured six leaf traits and seven root traits across 47 woody species and collected environmental variables from forest plots along a 1200 m elevational gradient. We employed linear mixed models to examine how resource exploitation strategies (community-weighted mean, CWM) and functional diversity (standardised effect size of RaoQ, SES.RaoQ) associated with leaf and root traits varied along elevations. Furthermore, we determined the relative effects of environmental variables on these metrics.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We observed that the resource exploitation strategy of leaves shifted from an acquisitive to a conservative strategy (higher leaf carbon concentration) with increasing elevation. Conversely, root trait variation exhibited an opposite trend, shifting from a conservative to an acquisitive strategy (higher root branching intensity but lower root diameter and root tissue density) along elevations, potentially influenced by mycorrhizal interactions. We detected functional convergence for leaf and root traits across elevations, with a greater degree of functional convergence at high elevations. Leaf trait convergence was closely linked to soil nitrogen conditions, whereas root trait convergence was associated with soil organic carbon levels.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Our results highlight that the patterns of resource exploitation strategies along elevational gradients are decoupled for leaf and root traits, with distinct environmental factors shaping the convergence of root and leaf traits. We argue that forest communities in mountain ecosystems may modify their resource exploitation strategies and functional diversity through varying combinations of leaf and root traits to improve resilience to future global change.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144611951","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":"Cover","authors":"","doi":"10.1111/jbi.14911","DOIUrl":"https://doi.org/10.1111/jbi.14911","url":null,"abstract":"<p>On the cover: A kiwikiu (<i>Pseudonestor xanthophrys</i>), member of the Hawaiian honeycreeper clade, perched in the Waikamoi Forest Preserve of Maui, Hawaii. Photo credit: Zach Pezillo, Maui Forest Bird Recovery Project.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 6","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.14911","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939552","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":"Latitudinal and Habitat-Driven Diversity of Coastal Fishes in the Southernmost Southwest Atlantic Ocean","authors":"Pablo J. Merlo,&nbsp;Agustín De Wysiecki,&nbsp;Leonardo A. Venerus,&nbsp;Gastón A. Trobbiani,&nbsp;Alejo J. Irigoyen","doi":"10.1111/jbi.15156","DOIUrl":"https://doi.org/10.1111/jbi.15156","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>To evaluate alpha and beta diversity of coastal marine fishes across different spatial scales—habitat, regional, and biogeographical—along a 14° latitudinal gradient (41° S–55° S).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Southern Southwest Atlantic Ocean (SWA).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Coastal marine fishes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We sampled four benthic habitats—rocky reefs, soft bottoms, transition habitats, and kelp forests—across seven shallow coastal sites (≤ 30 m depth) spanning distances of up to 1500 km. We conducted a total of 335 hourly deployments by using Baited Remote Underwater Video Stations (BRUVS). We analysed the alpha diversity by site and habitat and assessed beta diversity along with the influence of environmental variables across different spatial scales. Furthermore, we identified key taxa contributing to compositional changes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We recorded 7045 individuals representing 32 fish taxa: 30 species, one genus—<i>Patagonotothen—</i> and one family—Myxinidae. Taxonomic richness decreased with latitude, and a gradual turnover in species composition was recorded along the latitudinal gradient. This turnover distinguished warm-temperate assemblages of the Argentine Biogeographic Province from cold-water assemblages of the Magellanic Province and disclosed a southwards displacement of the biogeographic transition zone between them. In the Argentine Province, four species were identified as recent colonisers from lower latitudes. In addition, benthic habitats showed relatively high species turnover, with 25% of the recorded taxa being exclusive to a single habitat.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>This study represents the first standardised BRUVS survey conducted across such an extensive spatial scale in the SWA, and one of the broadest latitudinal assessments using this method globally. Our findings fill a knowledge gap in high-latitude fish biogeography, reveal climate-driven shifts in fish assemblages in the SWA, and highlight the contribution of different benthic habitats to overall fish diversity. Our study also uncovers scale-dependent patterns in marine coastal fish assemblages and has implications for their monitoring and management.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612017","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":"The Impact of Climate Change on High-Priority Areas of Conservation for Amphibians in North American Drylands","authors":"Jared E. Johnson,&nbsp;Heather L. Bateman,&nbsp;Adam Stein,&nbsp;Fábio Suzart de Albuquerque","doi":"10.1111/jbi.15155","DOIUrl":"https://doi.org/10.1111/jbi.15155","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>The goals of this study were to (1) identify how climate change impacts the distribution of amphibian species and high-priority conservation areas (HPCA) in the drylands of the Southwest United States and Northern Mexico, (2) describe the relationship between environmental variables and spatial configurations of HPCA and (3) explore how climate change will impact the distribution of HPCA and investigate the relationship between HPCA and protected area (PA) network.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Southwest United States and Northern Mexico.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Amphibians.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We used distribution maps for 209 amphibian species to estimate surrogates of amphibian diversity, assessed by rarity-weighted richness (RWR), site importance (Zonation) and species richness. Then, we used species accumulation curves to assess their efficiency in representing amphibians in the least number of sites. Next, we used the most effective surrogate to identify HPCA for amphibians. We used environmental variables, usually related to amphibian distribution, and random forest models to assess the impact of climate on the spatial configuration of HPCA in the current and future times. We also used PA networks to assess their representation.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>RWR produced a similar spatial configuration of HPCA as Zonation but could not depict the same level of connectivity. HPCAs were observed mainly across California, central Texas and western Mexico. The spatial distribution of HPCA was mostly influenced by precipitation, temperature and solar radiation. Climate change will influence the future distribution of HPCA. The overlay between HPCA and PA is weak.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusion</h3>\u0000 \u0000 <p>Climate change is becoming an ever-increasing issue for conservation efforts, especially in dryland ecosystems where natural resources are already scarce for native species. Results show an alteration in the spatial configuration of amphibian HPCA, and much is still needed to protect and manage them.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 8","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144611975","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}