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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Area and distance from mainland affect in different ways richness and phylogenetic diversity of snakes in Atlantic Forest coastal islands

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da Motta Portillo, Jose Thales [1] ; Ouchi-Melo, Lilian Sayuri [2] ; Crivellari, Lucas Batista [3] ; Lopes de Oliveira, Thiago Alves [4] ; Sawaya, Ricardo J. [5] ; Duarte, Leandro da Silva [4]
Total Authors: 6
[1] Univ Estadual Paulista, Inst Biociencias Letras & Ciencias Exatas, Sao Jose do Rio Preto - Brazil
[2] CUNY, City Coll New York, Dept Biol, New York, NY - USA
[3] Univ Fed Parana, Dept Zool, Curitiba, Parana - Brazil
[4] Univ Fed Rio Grande do Sul, Lab Ecol Filogenet & Func, Dept Ecol, Porto Alegre, RS - Brazil
[5] Univ Fed ABC, Ctr Ciencias Nat & Humanas, Sao Bernardo Do Campo - Brazil
Total Affiliations: 5
Document type: Journal article
Source: ECOLOGY AND EVOLUTION; v. 9, n. 7, p. 3909-3917, APR 2019.
Web of Science Citations: 0

Aim The Theory of Island Biogeography posits that ecological and evolutionary processes regulate species richness of isolated areas. We assessed the influences of an island area and distance from the mainland on species richness, phylogenetic diversity, and phylogenetic composition of snakes on coastal islands. Location Coastal islands of the megadiverse Atlantic Forest in southeastern Brazil. Methods We compiled the species composition of 17 coastal islands in southeastern Brazil. Species richness and phylogenetic diversity were calculated for each island. Phylogenetic composition was measured using principal coordinates of phylogenetic structure. We then employed generalized linear models to test the influence of area and distance from the mainland on the diversity metrics. Results We found a prominent influence of area on species richness, whereas phylogenetic diversity was more affected by distance from the mainland. Snake clades were distinctly associated with area and distance. The Boidae family was associated with nearer and larger islands, whereas Elapidae was broadly distributed. Distance from the mainland was associated with the distribution of Dipsadidae, whereas Colubridae was influenced by both the area and distance. The Viperidae family attained higher values of phylogenetic diversity in smaller and more remote islands. Main conclusions This island system conserved a considerable piece of snake richness from southeastern Brazil, including island endemic species. Area and distance from the mainland were important drivers of snake diversity in the Atlantic Forest coastal islands. However, these predictors affected the different components of diversity in different ways. Phylogenetic composition analysis enables us to understand how basal nodes contributed to high levels of phylogenetic diversity on smaller and farther islands regardless of the decrease in species richness. (AU)

FAPESP's process: 13/26101-8 - What is the importance of integrating several diversity metrics for understanding the function and structure of the amphibian tadpole communities in brasilian biomes?
Grantee:Lilian Sayuri Ouchi de Melo
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 14/23677-9 - New approaches to ecology and conservation: phylogenetic and functional diversity of amphibians and snakes of Brazilian Atlantic Forest
Grantee:Ricardo Jannini Sawaya
Support type: Regular Research Grants