Bird species diversity in the Atlantic Forest of Brazil is not explained by the Mid-domain Effect

Cavarzere, Vagner; Silveira, Luís Fábio

doi:10.1590/s1984-46702012000400001

Cited by 10 publications

(2 citation statements)

References 58 publications

(49 reference statements)

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“…Our analyses were focused on the Atlantic Forest Biodiversity Hotspot 42 , which originally covered around 150 million ha, with heterogeneous environmental conditions provided by a wide range of climatic belts and vegetation formations 43,57 . This biome has a latitudinal range extending into the tropical and subtropical regions, a longitudinal range harbouring differences in forest composition due to a diminishing gradient in rainfall from coast to interior 43 and an altitudinal range encompassing the elevational limits of the mountain chains of Serra do Mar and Serra da Mantiqueira 100 (Fig. 7a).…”

Section: Methodsmentioning

confidence: 99%

Climate change will decrease the range size of snake species under negligible protection in the Brazilian Atlantic Forest hotspot

Lourenço-de-Moraes

Lansac‐Tôha

Schwind

et al. 2019

Sci Rep

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Reptiles are highly susceptible to climate change, responding negatively to thermal and rainfall alterations mainly in relation to their reproductive processes. Based on that, we evaluated the effects of climate change on climatically suitable areas for the occurrence of snakes in the Atlantic Forest hotspot, considering the responses of distinct reproductive groups (oviparous and viviparous). We assessed the species richness and turnover patterns affected by climate change and projected the threat status of each snake species at the end of the century. We also evaluated the effectiveness of the protected areas in safeguarding the species by estimating the mean percentage overlap between snake species distribution and protected areas (PAs) network and by assessing whether such areas will gain or lose species under climate change. Our results showed greater species richness in the eastern-central portion of the Atlantic Forest at present. In general, we evidenced a drastic range contraction of the snake species under climate change. Temporal turnover tends to be high in the western and north-eastern edges of the biome, particularly for oviparous species. Our predictions indicate that 73.6% of oviparous species and 67.6% of viviparous species could lose at least half of their original range by 2080. We also found that existing protected areas of the Atlantic Forest Hotspot have a very limited capacity to safeguard snakes at the current time, maintaining the precarious protection in the future, with the majority of them predicted to lose species at the end of this century. Although oviparous and viviparous snakes have been designated to be dramatically impacted, our study suggests a greater fragility of the former in the face of climate change. We advocated that the creation of new protected areas and/or the redesign of the existing network to harbour regions that maximize the snake species occupancy in the face of future warming scenarios are crucial measures for the conservation of this group.

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Section: Methodsmentioning

confidence: 99%

Climate change will decrease the range size of snake species under negligible protection in the Brazilian Atlantic Forest hotspot

Lourenço-de-Moraes

Lansac‐Tôha

Schwind

et al. 2019

Sci Rep

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“…The longitudinal range extends from the coast to 1,000 km inland, and the altitudinal range extends from 0 to 2000 m a.s.l. (Cavarzere & Silveira, 2012). Originally, this biome covered around 150 million ha with a wide range of climatic belts and vegetation formations (Ribeiro, Metzger, Martensen, Ponzoni, & Hirota, 2009;Tabarelli, Pinto, Silva, Hirota, & Bede, 2005).…”

Section: Study Regionmentioning

confidence: 99%

Functional traits explain amphibian distribution in the Brazilian Atlantic Forest

Lourenço-de-Moraes

Campos

Ferreira

et al. 2019

Journal of Biogeography

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Aim: Species distributions are one of the most important ways to understand how communities interact through macroecological relationships. The functional abilities of a species, such as its plasticity in various environments, can determine its distribution, species richness and beta diversity patterns. In this study, we evaluate how functional traits influence the distribution of amphibians, and hypothesize which functional traits explain the current pattern of amphibian species composition.Location: Atlantic Forest, Brazil. Taxon: Amphibia (Anura and Gymnophiona)Methods: Using potential distributions of Brazilian amphibians from Atlantic Forest based on their functional traits, we analysed the influence of biotic and abiotic factors on species richness, endemism (with permutation multivariate analysis) and beta diversity components (i.e. total, turnover and nestedness dissimilarities).Results: Environmental variables explained 59.5% of species richness, whereas functional traits explained 15.8% of species distribution (geographical species range) for Anuran and 88.8% for Gymnophiona. Body size had the strongest correlation with species distribution. Results showed that species with medium to large body size, and species that are adapted to living in open areas tended to disperse from west to east direction. Current forest changes directly affected beta diversity patterns (i.e. most species adapted to novel environments increase their ranges).Beta diversity partitioning between humid and dry forests showed decreased nestedness and increased turnover by increasing altitude in the south-eastern region of the Atlantic Forest.Main Conclusions: Our study shows that functional traits directly influence the ability of the species to disperse. With the alterations of the natural environment, species more apt to these alterations have dispersed or increased their distribution, which consequently changes community structure. As a result, there are nested species distribution patterns and homogenization of amphibian species composition throughout the Brazilian Atlantic Forest.

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Dissecting bird diversity in the Pantepui area of endemism, northern South America

Borges

Santos

Moreira³

et al. 2018

J Ornithol

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Bird species diversity in the Atlantic Forest of Brazil is not explained by the Mid-domain Effect

Cited by 10 publications

References 58 publications

Climate change will decrease the range size of snake species under negligible protection in the Brazilian Atlantic Forest hotspot

Climate change will decrease the range size of snake species under negligible protection in the Brazilian Atlantic Forest hotspot

Functional traits explain amphibian distribution in the Brazilian Atlantic Forest

Dissecting bird diversity in the Pantepui area of endemism, northern South America

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