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Opposite latitudinal gradients for species richness and phylogenetic diversity of endemic snakes in the Atlantic Forest

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Current Zoology 2024年第4期70卷 522-530页

作者： jos.thales da motta portillo josuéAnderson Rēgo Azevedo Fausto Erritto Barbo Ricardo J.Sawaya Programa de Pos-Graduacao em Biologia Animal Instituto de BiocienciasLetras e Ciencias ExatasUniversidade Estadual Paulista"Julio de Mesquita Filho"Rua Cristovao Colombo2265Sao Josédo Rio PretoSao Paulo 15054-000Brazil Programa de Colecoes Cientificas Biologicas Coordenagao de BiodiversidadeInstituto Nacional de Pesquisas da AmazoniaAvenida AndréAraujo2936ManausAmazonas 69067-375Brazil Gothenburg Global Biodiversity Centre University of GothenburgBox 461GothenburgVastra Gotaland SE-40530Sweden Instituto Federal de Educacao Ciencia e Tecnologia de Minas GeraisRodovia Machado-Paraguacukm 3MachadoMinas Gerais 37750-000Rraizil Centro de Ciencias Naturais e Humanas UniversidadeFederaldo ABCRua Arcturus03Sao Bernardo do CampoSao Paulo09606-070Brazil

The decrease in species richness toward higher latitudes is an expected biogeographical *** pattern could be related to particular envi-ronmental constraints and the evolutionary history of ***,species richness does not fully represent the evolutionary history of the clades behind their *** diversity better clarifies the role of historical factors in biogeographical *** analyzed envi-ronmental and historical drivers related to latitudinal variation in species richness and phylogenetic diversity of Atlantic Forest endemic *** implemented species distribution models,from voucherbased locality points,to map the snake ranges and *** used generalized additive mixed models to evaluate the relationships among the diversity metrics and area,topographical roughness,and past climate change velocity since the Last Maximum Glacial in the Atlantic Forest latitudinal *** to the expected general pattern,species richness was higher toward higher latitudes,being positively related to past climatic *** richness also increased with total area and higher topographical *** diversity,on the other hand,showed opposite relationships related to the same *** diversity increased with lower climatic stability in lower ***,dimensions of diversity were affected in different ways by historical and environmental constraints in this unique and threatened biodiversity hotspot.

关键词： biodiversity latitudinal gradient neotropical region phylogenetic diversity serpents species richness.

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Climatic niche breadths of the Atlantic Forest snakes do not increase with increasing latitude

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Current Zoology 2022年第5期68卷 535-540页

作者： josé thales da motta portillo Fausto Erritto Barbo Ricardo J.Sawaya Programa de Pós-Graduação em Biologia Animal Instituto de BiociênciasLetras e Ciências ExatasUniversidade Estadual Paulista“Júlio de Mesquita Filho”Rua Cristóvão Colombo2265São Josédo Rio PretoSão Paulo 15054-000BrazilLaboratório de Coleções ZoológicasInstituto ButantanAvenida Vital Brazil1500São Paulo 05503-900Braziland Centro de Ciências Naturais e HumanasUniversidade Federal do ABCRua Arcturus03São Bernardo do CampoSão Paulo 09606-070Brazil

The climatic niche is a central concept for understanding species distribution,with current and past climate interpreted as strong drivers of present and historical-geographical *** aim is to understand whether Atlantic Forest snakes follow the general geographical pattern of increasing species climatic niche breadths with increasing *** also tested if there is a tradeoff between temperature and precipitation niche breadths of species in order to understand if species with larger breadths of one niche dimension have stronger dispersal constraints by the other due to narrower niche *** breadths were calculated by the subtraction of maximal and minimal values of temperature and precipitation across species *** implemented Phylogenetic Generalized Least Squares to measure the relationship between temperature and precipitation niche breadths and *** also tested phylogenetic signals by Lambda statistics to analyze the degree of phylogenetic niche conservatism to both niche *** niche breadths were not related to *** niche breadths decreased with increasing latitude and presented a high phylogenetic signal,that is,significant phylogenetic niche *** rejected the tradeoff hypotheses of temperature and precipitation niche *** results also indicate that precipitation should be an important ecological constraint affecting the geographical distribution of snake lineages across the South American Atlantic *** then provide a general view of how phylogenetic niche conservatism could impact the patterns of latitudinal variation of climatic niches across this biodiversity hotspot.

关键词： Atlantic Forest biogeography climatic niche latitudinal gradient snakes

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