Journal of Biogeography最新文献

{"title":"Latitudinal Gradients in Position and Climatology of Upper Tree Limits Across Europe","authors":"Václav Treml,&nbsp;Ryszard Kaczka,&nbsp;Jakub Zbygniew Kalita,&nbsp;Jiří Mašek,&nbsp;Jan Tumajer,&nbsp;Jelena Lange,&nbsp;Eunice Romero","doi":"10.1111/jbi.70296","DOIUrl":"https://doi.org/10.1111/jbi.70296","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>The upper tree limit (UTL) marks the upper boundary of the realized niche of trees. It is commonly located below the treeline, which represents the cold boundary of the fundamental niche of trees. We hypothesized that the elevational offset between the UTL and the treeline is partly systematic and can be predicted using topographic and bioclimatic variables. These variables were further used to develop a climatic classification of European UTLs.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Europe except Ural.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p>Tree species from the families <i>Pinaceae</i>, <i>Fagaceae</i>, and <i>Betulaceae</i>.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We identified current UTLs and calculated their bioclimatic metrics, based on which UTLs reaching treeline isotherm were subset. UTL elevation and its offset from the treeline were modelled using latitude, diurnal temperature range, climatic water balance, distance to summit, and warming trends.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Along with latitude, distance to summit and diurnal temperature range explained the elevational gradient of European UTLs (root mean square error = 196 m) and the offset between UTLs and treelines. European UTLs were classified into five distinct bioclimatic groups: (1) warm and dry UTLs in southern Europe, (2) UTLs in the highest European mountains, (3) Scotland's UTLs with a very long growing season, (4) UTLs in the western Scandes with the lowest degree days and the shortest growing season, and (5) UTLs from the eastern Scandes and Kola with a relatively dry and short growing season and with a low diurnal temperature range. Only UTLs in groups 2,4, and 5 reach the treeline.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Our study shows that, beyond random and land-use driven factors, deviations of UTLs from the treeline are partly systematic and reflect latitudinal and regional variation in available space above the UTL and diurnal temperature range. We provide a bioclimatic framework for the distribution and regional dynamics of European UTLs.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"53 7","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.70296","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148463179","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":"Southern Iberia as a Hotspot of Wild Grapevine Genetic Diversity","authors":"Juan Jacobo Rodríguez-Felizzola,&nbsp;Jesús J. Soriano Bermúdez,&nbsp;José Luis Blanco-Pastor","doi":"10.1111/jbi.70297","DOIUrl":"https://doi.org/10.1111/jbi.70297","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 commercial interest of grapevines (&lt;i&gt;Vitis vinifera&lt;/i&gt; L.) has prompted numerous studies on their origin and genetic resources in the context of global change. However, genomic-scale information on diversity patterns and genetic structure in southwestern Europe remains scarce. This study infers the genetic structure, gene flow events between genetic groups, and genetic refugia of &lt;i&gt;Vitis vinifera ssp. sylvestris&lt;/i&gt; in the Iberian Peninsula.&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 Iberian Peninsula.&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 wild grapevine, &lt;i&gt;Vitis vinifera&lt;/i&gt; L. ssp. &lt;i&gt;sylvestris.&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 reanalyzed a set of 137 complete genomes of &lt;i&gt;V. vinifera ssp. sylvestris&lt;/i&gt;. After variant calling, validation and annotation, we obtained a high-quality SNP dataset. Using these markers, we performed phylogenetic and population structure analyses to determine the number and spatial distribution of genetic groups and their contact zones. Next, we inferred the timing and directionality of gene flow events between groups. Finally, heterozygosity and allele rarity were estimated to identify populations with high conservation value.&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 detected three major ancestral populations and four putative genetic refugia in the south of the Iberian Peninsula. Demographic analyses indicate sustained gene flow between ~21,000 and ~7000 years ago from a Western Asia/Northern Africa ancestral group into Iberian wild populations in the south. Heterozygosity and allele rarity analyses identified populations of high conservation value in a variety of areas within the Iberian Peninsula.&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;We identify the biogeographical factors behind the long-known singularity of wild Iberian grapevines. The southern Iberian Peninsula is a hotspot of genetic diversity for wild grapevines, hosting three ancestral populations and multiple contact zones that acted as micro-refugia. The current genetic variability of Iberian wild grapevines is best explained by natural, climate-driven gene flow between African lineages with Middle Eastern origin and Iberian groups. These contacts were favoured by climatic conditions during the late Pleistocene (~21,000 years) and early Holocene (~8300 ","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"53 7","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.70297","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148463180","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":"Beyond Centres and Peripheries in Marine Biogeography","authors":"Isadora Cord","doi":"10.1111/jbi.70295","DOIUrl":"https://doi.org/10.1111/jbi.70295","url":null,"abstract":"<div>\u0000 \u0000 <p>Scientific knowledge is never produced in a vacuum. The regions that become theoretically central and the systems interpreted comparatively reflect both biological complexity and the uneven historical contexts through which scientific knowledge is produced and legitimized. This essay examines how inherited narratives of discovery, uneven scientific investment, and structural inequalities in knowledge production have shaped marine biogeography, from its early formulations to contemporary comparative frameworks. Drawing on biogeographic theory and scholarship from the history of science, it argues that understanding biogeographic patterns requires attending not only to ecological and evolutionary processes but also to the epistemic contexts in which those patterns were first described and interpreted. Marine biogeography long operated under assumptions of oceanic homogeneity; as regional structure became increasingly recognized, some systems became established as central reference frameworks while others were more often interpreted comparatively. Re-examining such peripheral systems can strengthen biogeographic inference and contribute to more historically informed and geographically inclusive approaches to understanding marine biodiversity.</p>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"53 7","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148462757","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":"Phylogeography of the Common Butterfly Lizard, Leiolepis belliana, Reveals Multiple Instances of Mitochondrial Introgression Driven by Historical Changes in River Systems","authors":"Nutthanun Khantasup,&nbsp;Amporn Wiwegweaw,&nbsp;Thongchai Ngamprasertwong,&nbsp;Jeren J. Gregory,&nbsp;L. Lee Grismer,&nbsp;Jesse L. Grismer,&nbsp;Nontivich Tandavanitj","doi":"10.1111/jbi.70293","DOIUrl":"https://doi.org/10.1111/jbi.70293","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;To test the hypothesis that historical changes in Indochinese river systems shaped phylogeographic structure, diversification and hybridization events in butterfly lizards of the genus &lt;i&gt;Leiolepis&lt;/i&gt;.&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;Mainland Southeast Asia (Thailand, Cambodia, Vietnam and Peninsular Malaysia).&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;Common butterfly lizard (&lt;i&gt;Leiolepis belliana&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 a multi-locus dataset comprising one mitochondrial, NADH dehydrogenase subunit 2 (&lt;i&gt;ND2&lt;/i&gt;), and two nuclear genes, Exophilin 5 (&lt;i&gt;EXPH5&lt;/i&gt;) and Upstream transcription factor family member 3 (&lt;i&gt;USF3&lt;/i&gt;; &lt;i&gt;KIAA2018&lt;/i&gt;), from samples spanning the distribution of &lt;i&gt;Leiolepis belliana&lt;/i&gt; and other congeneric species within the genus &lt;i&gt;Leiolepis&lt;/i&gt;. Phylogenetic relationships using both mitochondrial and nuclear genes were inferred using Maximum Likelihood and Bayesian Inference analyses. Divergence times were estimated, and ancestral range reconstructions were conducted using Statistical Dispersal-Variance Analysis (S-DIVA). Mitochondrial and nuclear DNA datasets were analysed separately to distinguish historical biogeographic patterns from signals of hybridization. Population genetic structure and demographic history were assessed using genetic diversity indices, a haplotype network, AMOVA and neutrality tests.&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 nuclear phylogenies suggested that &lt;i&gt;Leiolepis belliana&lt;/i&gt; originated on the Thai–Malay Peninsula during the late Oligocene–early Miocene, followed by diversification across Central and Northern Thailand consistent with major reorganizations of the Mekong River system. In contrast, the mitochondrial phylogeny revealed contrasting relationships with the nuDNA dataset, indicating three independent instances of mitochondrial introgression involving other species within the genus &lt;i&gt;Leiolepis&lt;/i&gt;. Divergence time estimations and ancestral area reconstructions collectively suggested that repeated shifts in river courses and sea-level fluctuations transformed environmental barriers into areas of secondary contact and hybridization. Population genetic analyses further supported strong geographic structuring with different demographic signatures among populations.&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 evolutionary history of &lt;i&gt;L. belliana&lt;/i&gt; reflects a dynamic interplay between river","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"53 7","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148462867","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":"Genomic Structure and Demographic History of the Brown Fur Seal: From the Ice Age to Current Isolation","authors":"Charlotte A. Spanjaard,&nbsp;Amoré Malan,&nbsp;Tess Gridley,&nbsp;John P. Y. Arnould,&nbsp;Roger Kirkwood,&nbsp;Conrad A. Matthee","doi":"10.1111/jbi.70288","DOIUrl":"https://doi.org/10.1111/jbi.70288","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;&lt;i&gt;Arctocephalus pusillus&lt;/i&gt; (the brown fur seal) has historically experienced population fluctuations associated with glacial cycles and anthropogenic exploitation. Previous mitochondrial DNA (mtDNA) and microsatellite analyses suggested a post-glacial population expansion in &lt;i&gt;A. pusillus&lt;/i&gt;, followed by allopatric divergence that resulted in two extant subspecies: the Australian (AFS, &lt;i&gt;A. p. doriferus&lt;/i&gt;) and Cape (CFS, &lt;i&gt;A. p. pusillus&lt;/i&gt;) fur seals. A fine-scale analysis documenting the subspecies' evolutionary history, stochasticity and patterns of gene flow remains largely unexplored. Here, using high-resolution genome-wide markers, we investigate the demographic history of the species, gene flow among &lt;i&gt;A. pusillus&lt;/i&gt; colonies and drivers of genomic variation across fine and broad spatial scales.&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 Africa, Australia.&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;Arctocephalus pusillus&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;Analyse putative outlier and neutral Single Nucleotide Polymorphisms (SNPs) from genotype-by-sequencing (GBS) data of 92 individuals across five CFS and three AFS colonies.&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 seal subspecies show clear genomic differentiation that appears to reflect genome-wide processes. Putative outlier loci show elevated divergence between subspecies, some of which link to functional annotations at orthologous genes in the &lt;i&gt;A. gazella&lt;/i&gt; reference genome (arcGaz4_h1). We detect some genomic differentiation among AFS colonies despite inferring substantial gene flow between most colonies within each subspecies (proportion of first generation migrants = 0.087–0.258). Demographic inference supports a recent vicariant lineage divergence (~12,000–23,000 years ago) in &lt;i&gt;A. pusillus&lt;/i&gt; and post-glacial population declines in the CFS and AFS, but it does not provide evidence of recent population bottlenecks.&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;This study advances our understanding of evolutionary forces driving differentiation across mobile subspecific pinniped lineages and underscores the utility of genome-wide data in resolving patterns of population structure across global and regional scales. Offering novel insights into &lt;i&gt;A. pusillus&lt;/i&gt; evolution, our work co","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"53 7","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.70288","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148462755","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":"Improving the Prediction of Treefrog Species Vulnerability to Climate Change: The Role of Abundance","authors":"C. Rangel,&nbsp;M. M. Weber","doi":"10.1111/jbi.70289","DOIUrl":"https://doi.org/10.1111/jbi.70289","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;As climate changes intensify over time due to anthropogenic pressures, it is estimated that a global shift in the current biodiversity patterns, including the loss of several species. Amphibians are the most threatened group by climate change and, in addition to distribution shifts, declines in species abundances are also expected. A widely used tool in biodiversity studies for measuring and predicting species' responses to environmental changes is Ecological Niche Models, which relate species locations to climate predictors to identify environmentally suitable areas for species persistence. Recently, studies have suggested the use of abundance data to construct these models, known as Abundance-based Ecological Niche Models (A-ENMs). The aim of this study was to predict the future impacts of climate change on the distribution and abundance of treefrogs in South America.&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;South America.&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;2000–2019; 2061–2080.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Major Taxa Studies&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Hylidae.&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 obtained georeferenced species abundance data from the literature and occurrence records from biodiversity databases. We used two algorithms to model ecological niches and species abundance and projected them into the current scenario and three future scenarios for the year 2070 (2061–2080). We measured potential changes in suitability for both distribution and abundance.&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;Climate change projected for 2070 may alter the geographic distribution area and abundance of treefrog species in South America, with major impacts on species abundance. The SSP 5.8.5 (most pessimistic scenario) showed the highest potential for climatic suitability decrease for both ENMs and A-ENMs. For some species, abundance-based climatic suitability tends to decline even when there is no decrease in climatic suitability for distribution. Additionally, species with smaller geographic ranges are projected to experience greater changes in climatic suitability based on both ENMs and A-ENMs, compared to those with broader distributions.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Main Conclusion&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Our ","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"53 7","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.70289","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148386706","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":"Niche Position Mediates the Effect of Polyploidy on Geographic Range Size in Clarkia","authors":"Aidan D. Harrington,&nbsp;David A. Moeller","doi":"10.1111/jbi.70291","DOIUrl":"https://doi.org/10.1111/jbi.70291","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Polyploidy has been proposed to result in greater geographic range size in plants because it increases the capacity for adaptation to novel environments; however, the proposed relationship is not found across clades. By contrast, the large genome constraint hypothesis predicts that larger genomes constrain the niche, leading to similar niches among related polyploids, while the habitat area hypothesis predicts range size is constrained by niche position (the geographic frequency of niche space). We mechanistically evaluated the links between these hypotheses to assess factors influencing polyploid range size and distribution.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Western North America.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxon</h3>\u0000 \u0000 <p><i>Clarkia</i> (Pursh).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Using comparisons between allopolyploids and their progenitors in the genus <i>Clarkia</i>, we tested if polyploids have larger geographic ranges and parallel climatic niche shifts. We also evaluated whether biogeographic patterns of polyploid frequency are predicted by climatic variables and climatic rarity. Lastly, we examined how polyploid niche shifts influenced niche position and breadth and tested whether these variables predicted range size.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Polyploid range size was not significantly different from progenitors, and polyploids exhibited diverse niche shifts relative to progenitors. Across the entire genus, polyploids were slightly more common in cooler, wetter and more geographically common climates. Variation in polyploid range size was better explained by niche position than breadth.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>The results are inconsistent with polyploids having increased adaptive capacity compared to diploids, or parallel niche shifts. However, polyploid ranges were predicted by niche position but diploids were not, perhaps reflecting greater colonization potential. The overall distribution of polyploids in <i>Clarkia</i> was also consistent with variation in factors that may influence formation and establishment.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"53 7","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.70291","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148386596","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":"Mapping Zoonotic Risk With a Biogeographic Perspective on Transmission Cycles","authors":"Jesús Olivero,&nbsp;Marina Cobos-Mayo,&nbsp;Alisa Aliaga-Samanez","doi":"10.1111/jbi.70292","DOIUrl":"https://doi.org/10.1111/jbi.70292","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>When mapping the transmission risk of zoonotic diseases, the way vectors and wild carrier hosts are integrated into the modelling process has relevant impacts on the final output. The wide diversity of zoonotic cycles entails that a single methodological approach may be insufficient to cover the influence of vectors and wild carrier hosts on the geographic extent of transmission risk. For that reason, we have developed a methodological protocol for risk-modelling design. This protocol provides multiple risk-modelling routes based on the role assumed for vectors and wild carriers in the geographical limitation of zoonotic risk.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Method</h3>\u0000 \u0000 <p>A variety of approaches for zoonotic risk modelling, each published separately, are integrated here into a single methodological framework based on four pathogeographic scenarios. Each scenario is a hypothesis that considers the role of vectors and hosts in limiting or modulating pathogen transmission risk to humans in geographic terms. Specific procedures are then suggested for risk modelling according to the pathogeographic scenario assumed, and these are based on different ways of combining models using fuzzy logic operators. Furthermore, we provide a decision-making guideline to support the selection of the most appropriate pathogeographic scenario for the zoonosis under study, taking into account the available knowledge on vectors and hosts within the study area. In cases of uncertainty regarding this selection, recommendations are provided for assessing and comparing the outputs based on different scenarios.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Pathogeographic scenarios provide a robust methodological framework for risk modelling, ensuring the consistent inclusion of vectors and wild carrier hosts, considering their role in the transmission dynamics of zoonotic diseases in geographical terms. Furthermore, the use of the suggested guidelines enhances the reproducibility and transparency of model processing by reflecting all assumptions made from the first steps in modelling design.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"53 7","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.70292","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148386597","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":"Phylogenetic Structure and Environment Explain Body Size in North American Killifishes","authors":"Manuel A. Galeana-Rivera,&nbsp;Chris W. Hoagstrom,&nbsp;Wilfredo A. Matamoros","doi":"10.1111/jbi.70290","DOIUrl":"https://doi.org/10.1111/jbi.70290","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;Investigate maximum-length patterns in North American killifishes within an evolutionary macroecological framework by examining how body size evolved, how it varies across the geographic range, and how large-scale environmental variables shape body-size geography.&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;North 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;North American killifishes (Fundulidae, Cyprinodontidae, Goodeidae and Profundulidae).&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 documented maximum total length of killifish within one-degree grid cells covering North America. We assessed phylogenetic signal using a Phylogenetic Signal Representation (PSR) curve and employed Principal Coordinates of Phylogenetic Structure (PCPS) to integrate the geographic distributions of lineages as a numerical variable alongside environmental variables and latitude. Relative contributions of latitude, environmental and phylogenetic variables were evaluated through hierarchical partitioning and variance partition analysis.&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 evolutionary pattern of Maximum TL was better described by a multiple-optima Ornstein-Uhlenbeck model, identifying seven distinct adaptive regimes across the phylogeny, indicating stabilizing selection toward multiple phenotypic optima. Forward selection identified maximum temperature of the warmest month and intra-annual variability in net ecosystem production as key bioclimatic predictors. Variance partitioning revealed that phylogenetic structure and bioclimatic variables are strongly correlated, jointly explaining the majority of variation. While these variables share structure with the latitudinal gradient, the unique component of phylogenetic variation explained a substantial proportion of the pattern.&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;Body size in North American killifish exhibits phylogenetic conservatism manifested as evolutionary stasis. Although temperature and latitude strongly predict its geographic distribution, creating a pattern suggestive of Bergmann's rule, the distribution of lineages among families primarily drives this relationship. The observed latitudinal cline is a biogeographic artefact of lineages retaining ancestral sizes while expanding their distributions northward or southward, severely limit","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"53 7","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.70290","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148386595","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":"Contrasting Forest Trajectories Drive Changes in Bird Functional Traits","authors":"Larissa Corsini Calsavara Nozawa,&nbsp;Cristina Banks-Leite,&nbsp;Marcos Robalinho Lima,&nbsp;José Ricardo Pires Adelino,&nbsp;Jan Karel Felix Mähler,&nbsp;Sandra Maria Hartz,&nbsp;Luiz dos Anjos","doi":"10.1111/jbi.70287","DOIUrl":"https://doi.org/10.1111/jbi.70287","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;We investigated how bird functional diversity varies across forest habitat types with distinct successional trajectories, namely (1) natural succession forests, with naturally regenerating forests established on former grasslands; (2) secondary forest remnants resulting from deforestation; and (3) conserved forests.&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;Araucaria forests in southern Brazil.&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;1991 to 2015.&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;Birds.&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 functional trait data for bird communities from 47 sites of Araucaria forests under three distinct successional trajectories. We calculated standardised effect sizes for functional richness (SESFRic) and functional dispersion (SESFDis), and generalised linear models were initially fitted. To account for spatial autocorrelation, we fitted spatial models (spaMM) to assess whether forest habitat type, forest cover, and patch size help explain functional variation in bird assemblages. In addition, we performed canonical correspondence analysis to evaluate differences in trait composition among forest habitat types.&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;Functional richness and dispersion decreased with increasing forest cover. However, only functional dispersion differed among forest habitat types, indicating environmental filtering across all habitats. Forest cover was the main predictor of functional richness, suggesting that habitat amount limits bird species coexistence. Natural succession forests had lower functional dispersion when compared with secondary forest remnants and conserved forests. Although conserved forest and secondary forest remnants had partially similar responses in functional dispersion, we found significant differences in community trait composition and functional space. Natural succession forests supported insectivorous species that forage in air in addition to species with broader bills, while secondary forest remnants held birds that feed on insects and fruits on ground strata. Conserved forests sustained birds with vertebrate consumption and that forage in leaf litter.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Main Conclusions&lt;/h3&gt;\u0000 \u0000 ","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"53 7","pages":""},"PeriodicalIF":3.5,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.70287","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148386326","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}