Geographic restriction, genetic divergence, and morphological disparity in the Brazilian Atlantic Forests: Insights from Leposoma lizards (Gymnophthalmidae, Squamata)

Damasceno, Roberta Pacheco; Carnaval, Ana Carolina; Sass, Chodon; Recoder, Renato Sousa; Moritz, Craig; Rodrigues, Miguel Tréfaut

doi:10.1016/j.ympev.2020.106993

Cited by 3 publications

(4 citation statements)

References 96 publications

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“…This location presents a species turnover due to the different AF ecoregions, where the north geographic distribution of Araucaria mixed forest (north distribution between Tietê and Ribeira Rivers) could be responsible for the highest restriction of gene flow detected for the EEMS analysis (Figure 3; see also Thomé et al, 2014;Peres et al, 2020). Despite physical barriers restricting species movements and affecting genetic variation (e.g., Pellegrino et al, 2005;Damasceno et al, 2021), organismal dispersal ability is also potentially correlated to species ecology and environmental variation. Yet, it is not surprising that the region between Doce and Paraíba do Sul was a contact region for D. elegans populations.…”

Section: Discussionmentioning

confidence: 88%

“…In contrast, during the Pleistocene glacial periods, biota experienced increased aridification and concentrations of CO 2 , which likely resulted in retraction of forests and expansion of open areas (e.g., Antonelli et al, 2010). Consequently, populations of plants and animals associated with forested habitats that were unable to disperse across open areas could have been isolated for thousands of years, accumulating genetic differences that could potentially result in allopatric speciation (e.g., Resende et al, 2010;Damasceno et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Deep Genomic Divergence and Phenotypic Admixture of the Treefrog Dendropsophus elegans (Hylidae: Amphibia) Coincide With Riverine Boundaries at the Brazilian Atlantic Forest

et al. 2022

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The Atlantic Forest (AF) domain is one of the Earth’s biodiversity hotspots, known for its high levels of species diversity and endemism. Factors related to palaeoenvironmental dynamics, such as the establishment of vegetational refugia and river basins, have different impacts on biological communities and biodiversity patterns in this domain. Here, we sample genome-wide RADseq data from a widespread treefrog (Dendropsophus elegans), inhabiting natural and human-impacted ecosystems at the Brazilian AF to test the impact of riverine boundaries and climatic refugia on population structure and diversification. We estimate divergence times and migration rate across identified genetic breaks related to the rivers Doce, Paraíba do Sul, Ribeira de Iguape, and Paraguaçu, known to represent barriers to gene flow for other AF endemic species, and test the role of climatic refugia. Finally, we investigate the impact of spatio-temporal population history on morphological variation in this species. We recovered a phylogeographic history supporting three distinct clades separated into two geographically structured populations, corresponding to the north and south of AF. In addition, we identified an admixture zone between north and south populations in the latitude close to the Doce River. Our findings support a pattern of isolation-by-distance and the existence of a secondary contact zone between populations, which might have been promoted by gene flow during population expansion. Further, we found support for models considering migration parameters for all the tested rivers with different population divergence times. Based on the species history and the AF palaeoenvironmental dynamics, we corroborate the role of forest refugia impacting population structure for this species through recent range expansion after the Last Glacial Maximum (LGM). The Doce and Paraíba do Sul Rivers coincide with the main genetic breaks, suggesting they might also have played a role in the diversification processes. Finally, despite finding subtle correlations for phenotypic data among different populations, variation is not strongly detectable and does not seem associated with speciation-level processes that could warrant taxonomic changes. Such results can be explained by phenotypic plasticity of the evaluated traits and by recent divergence times, where there has been insufficient time and weak selective pressures to accumulate enough phenotypic differences.

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Section: Discussionmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Deep Genomic Divergence and Phenotypic Admixture of the Treefrog Dendropsophus elegans (Hylidae: Amphibia) Coincide With Riverine Boundaries at the Brazilian Atlantic Forest

et al. 2022

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“…Endêmica do Brasil: Sim Leposoma nanodactylus é endêmica do Brasil e possui ocorrência conhecida predominante em áreas elevadas dos municípios de Almadina, Arataca (Parque Nacional da Serra das lontras), Barro Preto, Camacan, Jussari (Serra do Teimoso), São José da Vitória (localidade-tipo, fazenda Unacau) e Una, no sul do estado da Bahia (Rodrigues, 1997;Rodrigues et al, 2002;Rodrigues & Avila-Pires, 2005;Faria et al, 2007;Pellegrino et al, 2011;Rodrigues et al, 2013;Rojas-Padilla et al, 2020;Damasceno et al, 2021;I. Dias, com.…”

Section: Distribuiçãounclassified

Ficha de Leposoma nanodactylus

Guarino Rinaldi Colli,

Carlos Eduardo Guidorizzi,

Yeda Soares de Lucena Bataus

et al. 2023

Datasets - Sistema SALVE - ICMBio

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Categoria: Em Perigo (EN) Última avaliação: 30/04/2021 (ajustada em 2022) Ano da publicação: 31/08/2023Leposoma nanodactylus é endêmica do Brasil e conhecida de poucos registros de uma região restrita da Mata Atlântica do sul da Bahia. Sua extensão de ocorrência foi calculada em 2.135 km². A espécie ocorre predominantemente em regiões montanhosas e necessita de florestas em bom estado de conservação. Boa parte da floresta ao longo da sua distribuição foi intensamente descaracterizada pela agricultura e extrativismo madeireiro, que provocam declínio contínuo da qualidade do hábitat. Considerando a especificidade de hábitat e a baixa capacidade de dispersão da espécie, sua população encontra-se severamente fragmentada. Portanto, Leposoma nanodactylus foi avaliada como Em Perigo (EN) pelo critério B1ab(iii).

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“…Fossorial and diurnal (Teixeira and Fonseca 2003). It inhabits high altitude areas with forested vegetation inside Caatinga (Damasceno et al 2020).…”

Section: Distributionmentioning

confidence: 99%

Lizards (Reptilia: Squamata) from the Caatinga, northeastern Brazil: Detailed and updated overview

Uchôa¹,

Delfim²,

Mesquita³

et al. 2022

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The Caatinga is the largest seasonal dry tropical forest in South America and it has been historically neglected in terms of its biodiversity. Regarding lizards, different studies led to the current knowledge of diversity and endemism in Caatinga, but detailed syntheses are scarce in the literature. We present the most detailed and up-to-date synthesis of knowledge about Caatinga lizards by providing a detailed (i) list of species; (ii) taxonomic richness patterns; (iii) knowledge gaps and spatial biases; and (iv) detailed distribution maps of all species that contain at least one occurrence record within Caatinga limits. We created a distribution database using occurrences of lizards in Caatinga based on scientific collections, field collection, and literature. We produce up-to-date distribution maps, calculate the Extent of Occurrence and provide the environmental and bioclimatic profile for each species recorded. We draw taxonomic richness and sampling gap maps. Our database has 20,538 records of occurrence of lizards of the Caatinga. We recorded 93 lizard species (13 families), 52.7% of which are endemic. Forthy-four percent of the species present restricted distributions. We identified that 53% of the Caatinga area (or 70% of the municipalities) has no record of occurrence of lizards. The data presented are an important step towards synthesizing in detail the accumulated knowledge about Caatinga lizards and is crucial for accurate strategies for the conservation planning. It directs actions to advance our knowledge on Caatinga lizards: to concentrate inventories in sample void areas; continuous update of the species occurrence database, advance in the generation of autoecology data for species.

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Geographic restriction, genetic divergence, and morphological disparity in the Brazilian Atlantic Forests: Insights from Leposoma lizards (Gymnophthalmidae, Squamata)

Cited by 3 publications

References 96 publications

Deep Genomic Divergence and Phenotypic Admixture of the Treefrog Dendropsophus elegans (Hylidae: Amphibia) Coincide With Riverine Boundaries at the Brazilian Atlantic Forest

Deep Genomic Divergence and Phenotypic Admixture of the Treefrog Dendropsophus elegans (Hylidae: Amphibia) Coincide With Riverine Boundaries at the Brazilian Atlantic Forest

Ficha de Leposoma nanodactylus

Lizards (Reptilia: Squamata) from the Caatinga, northeastern Brazil: Detailed and updated overview

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Geographic restriction, genetic divergence, and morphological disparity in the Brazilian Atlantic Forests: Insights from Leposoma lizards (Gymnophthalmidae, Squamata)

Cited by 3 publications

References 96 publications

Deep Genomic Divergence and Phenotypic Admixture of the Treefrog Dendropsophus elegans (Hylidae: Amphibia) Coincide With Riverine Boundaries at the Brazilian Atlantic Forest

Deep Genomic Divergence and Phenotypic Admixture of the Treefrog Dendropsophus elegans (Hylidae: Amphibia) Coincide With Riverine Boundaries at the Brazilian Atlantic Forest

Ficha de Leposoma nanodactylus

Lizards (Reptilia: Squamata) from the Caatinga, northeastern Brazil: Detailed and ﻿updated overview

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Lizards (Reptilia: Squamata) from the Caatinga, northeastern Brazil: Detailed and updated overview