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Taxonomic groups with lower movement capacity may present higher beta diversity Iheringia, Sér. Zool.
Silva,Vinícius X. da; Sacramento,Mario; Hasui,Érica; Cunha,Rogério G. T. da; Ramos,Flavio N..
ABSTRACT Diversity analysis by partition is an approach employed in order to understand how communities spatially structure themselves and the factors that operate in the generation and maintenance of distribution patterns. We examined the spatial structure of species diversity of four taxonomic groups, with different dispersal abilities, in 16 forest fragments in the southern region of the state of Minas Gerais, Brazil. Specifically, we tested: i) if the similarity in species composition would be negatively related to geographical distance between the 16 fragments; and ii) if the beta diversity of the different groups could be negatively related to their dispersal abilities. Alpha diversity and the compositional similarity between localities were both...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Complementarity; Dispersal ability; Vertebrates; Spermatophytes; Atlantic Forest.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212017000100205
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Juvenile dynamics of the endemic and rare Enterolobium glaziovii Benth. (Mimosaceae) around reproductive trees in the Atlantic forest, Brazil Rev. Bras. Bot.
Ramos,Flavio N.; Silvia-Matos,Dalva M.; Santos,Flavio A. Maës dos.
Studies on the regeneration and seedling mortality of rare tree species are important, but scarce. The aim of this study was to investigate the annual variation in recruitment, growth and mortality of juveniles of Enterolobium glaziovii Benth., a rare tree species from the Brazilian Atlantic Rain Forest. All seedlings and juveniles around four reproductive trees were labeled and their fate was followed from 1996 to 1999. There were no annual differences in juveniles' recruitment below and beyond the parental crown, but juveniles' survival and growth were lower below than beyond of the parental tree crowns. Small individuals (< 15 cm tall) showed the greatest mortality and the lowest growth, followed by medium (from 15 to 50 cm tall) and large ones (>...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Conspecific influence; Distance-dependent mortality; Growth; Shade tolerance; Size-dependent mortality.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042005000400011
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