Plant community on a volcano mountaintop reveals unique high-altitude vegetation in southeastern Brazil

作     者：Igor Musauer KESSOUS Ruy JoséValka ALVES Nílber Gonçalves da SILVA Amilcar Walter SAPORETTI JUNIOR Igor Musauer KESSOUS;Ruy José Valka ALVES;Nílber Gonçalves da SILVA;Amilcar Walter SAPORETTI JUNIOR

作者机构：Biodiversity LaboratoryFederal Institute of EducationScience and Technology of Southern Minas Gerais(IFSULDEMINAS)Av.Dirce Pereira Rosa300-Jardim Esperança37713-100Poços de CaldasMGBrazil Department of BotanyNational MuseumFederal University of Rio de JaneiroQuinta da Boa Vista s.n.São Cristóvão20949-040Rio de JaneiroRJBrazil Gothenburg Global Biodiversity CentreCarl Skottsbergs Gata 22BSE 41319GothenburgSweden 

出 版 物：《Journal of Mountain Science》 (山地科学学报（英文）)

年 卷 期：2024年第21卷第9期

页      面：3018-3030页

核心收录：

学科分类：07[理学] 0713[理学-生态学] 

基　　金：IFSULDEMINAS-Campus Poços de Caldas for supporting the research 

主　　题：Atlantic Forest Biogeography Cerrado Community ecology Grassland 

摘      要：Mountains exhibit a high degree of endemism and diversity,however,quantifying their biodiversity can be *** to islands,species isolation in mountainous regions results in comparable patterns of evolution and extinction,rendering their biodiversity unique and highly susceptible to anthropogenic *** topographic relief in mountains plays a crucial role in creating habitat complexity,which in turn contribute to high plant ***,we investigated plant diversity in the volcano mountaintop vegetation on the Poços de Caldas Plateau,a region situated in the ecotone between the Atlantic Forest and Cerrado,characterized by natural radiation and significant anthropogenic *** employed an automated approach through the filtering of georeferenced and non-georeferenced data to obtain a list of plant species in the ***,we statistically investigated the similarity among different high-altitude vegetations belonging to the campos de altitude from the Atlantic Forest and campos rupestres from the *** plateau exhibits high plant diversity,including 1,659 specific and infraspecific taxa,especially belonging to Asteraceae and *** analyses suggest that geographical distance is a strong predictor of dissimilarity and that the Poços de Caldas Plateau is more floristically related to the campos rupestres,despite being associated with campos de *** region possesses a unique set of biodiversity,indicating that it may be a distinct ***,we hypothesize that Pleistocene events likely influenced the conformation of the current floristic composition in the region through species interchange between the Cerrado and Atlantic *** study also highlights the few taxa assessed for conservation status and anthropogenic threats that this habitat is facing.