Results 11 to 20 of about 15,872 (151)

Functional traits and phylogeny explain snake distribution in the world's largest dry forest ecoregion, the Gran Chaco. [PDF]

Ecol Evol, 2022
Chacoan snakes show a latitudinal pattern of distribution, with a marked verticality. Long‐tailed species richness and verticality increases in areas with high stratified habitats and stable temperature; and short‐tailed species richness and fossoriality is driven mainly by soil conditions, especially soils with fewer sand particles and less stratified
Cabral H, Guedes TB, Santana DJ.
europepmc   +2 more sources

The dispersal between Amazonia and Atlantic Forest during the Early Neogene revealed by the biogeography of the treefrog tribe Sphaenorhynchini (Anura, Hylidae). [PDF]

Ecol Evol, 2022
We suggest that phylogeographic patterns of Sphaenorhynchini have resulted from a combination of repeated range expansion and contraction cycles concurrent with Quaternary climate fluctuations and stochastic dispersal events between the Atlantic Forest and Amazonian Abstract The Amazonia and the Atlantic Forest, separated by the diagonal of open ...
Pereira EA, Ceron K, da Silva HR, Santana DJ.   +3 more
europepmc   +2 more sources

Exceptional Visual-Opsin Coexpression and Phenotypic Diversity in Outer-Retinal Photoreceptors of Caenophidian Snakes. [PDF]

J Comp Neurol
In snakes, profound differences in retinal architecture are observed between diurnal and nocturnal species. Additionally, in the rod‐dominated retinas of nocturnal snakes, coexpression of the cone opsins SWS1 and LWS in individual cones is common, while rhodopsin (RH1) is restricted to typical rods.
Hauzman E, Haverkamp S, Tashiro JH, Gügel IL, Torello-Viera NF, Guedes TB, Němec P, Casewell NR, Modahl CM, Oliveira ME, Prudente ALC, Mesquita DO, Ventura DF, Gower DJ.   +13 more
europepmc   +2 more sources

The combined role of dispersal and niche evolution in the diversification of Neotropical lizards. [PDF]

Ecol Evol, 2020
We integrated ecological and molecular data to investigate the relative roles of biogeographic events and niche evolution on the diversification of a lizard genus distributed in Neotropical rainforests and savannas. Our results suggest that dispersal and ecological divergence could have a more important role in Neotropical diversification than ...
Sheu Y, Zurano JP, Ribeiro-Junior MA, Ávila-Pires TC, Rodrigues MT, Colli GR, Werneck FP.   +6 more
europepmc   +2 more sources

Climate drives anuran breeding phenology in a continental perspective as revealed by citizen‐collected data

Diversity and Distributions, Volume 28, Issue 10, Page 2094-2109, October 2022., 2022
Abstract Aim As anuran reproduction is generally linked to the availability of water, frogs and toads are particularly sensitive to climate. We tested the effect of climate on anuran reproductive phenology and daily activity by analysing temporal patterns of reproductive behaviour based on citizen‐collected observations. Location Brazil.
Lucas Rodriguez Forti, Fábio Hepp, Juliana Macedo de Souza, Airan Protazio, Judit K. Szabo   +4 more
wiley   +1 more source

Osteology of the enigmatic threadsnake species Epictia unicolor and Trilepida guayaquilensis (Serpentes, Leptotyphlopidae) with generic insights

The Anatomical Record, Volume 304, Issue 10, Page 2183-2197, October 2021., 2021
Abstract Since the rearrangement of all leptotyphlopid species previously known as “Leptotyphlops” in Adalsteinsson et al. (2009)'s paper, several taxa have remained untested regarding their generic identity and have been assigned to different genera based on phenotypic data or, in some cases, without any clear justification.
Claudia Koch, Angele Martins, Mitali Joshi, Roberta R. Pinto, Paulo Passos   +4 more
wiley   +1 more source

Habitat amount and ambient temperature dictate patterns of anuran diversity along a subtropical elevational gradient

Diversity and Distributions, Volume 27, Issue 2, Page 344-359, February 2021., 2021
Abstract Aim Patterns of diversity along elevational gradients are driven by species characteristics but remain poorly understood. Filling this gap is imperative given the deteriorating conservation status of anurans worldwide. Here, we examine frog diversity and species composition along a sharp subtropical elevational gradient and assess the degree ...
Vítor Carvalho‐Rocha, Carlos A. Peres, Selvino Neckel‐Oliveira, Xuan Liu   +3 more
wiley   +1 more source

Fauna de répteis dos remanescentes florestais e cultivos agrícolas da Fazenda Cambuhy, municípios de Matão, Nova Europa e Tabatinga, região Noroeste do estado de São Paulo

Biotemas, 2017
A região Noroeste é a mais desmatada e com menor concentração de Unidades de Conservação do estado de São Paulo. Apesar dos avanços científicos recentes, ainda existem lacunas de conhecimento de herpetofauna.
Ana Bárbara Barros, Frederico Alcântara Menezes, José Ricardo Falconi, João Gabriel Ribeiro Giovanelli   +3 more
doaj   +1 more source

Os répteis como conteúdo em livros didáticos: análise do PNLD 2018 e 2021

Alexandria, 2023
Esta pesquisa buscou compreender como o conteúdo de répteis é apresentado nos livros didáticos de Biologia do Ensino Médio indicados pelos PNLD 2018 e 2021, a partir de análises acerca dos registros textuais sobre respectivo conhecimento escolar. Fez-se
Laís Pio Caetano Machado, Thaís Isabela Carvalho dos Santos, Thalita Quatrocchio Liporini, Cristiane Rodrigues Menezes Russo   +3 more
doaj   +1 more source

Herpetofauna da Estação Ecológica de Bauru, um fragmento de Mata Atlântica no estado de São Paulo, Brasil. Herpetofauna from Estação Ecológica de Bauru, a fragment of Atlantic Forest in the state of São Paulo, Brazil. [PDF]

Revista do Instituto Florestal, 2017
A herpetofauna do estado de São Paulo pode ser considerada a mais conhecida no país. No entanto, ainda existem consideráveis lacunas amostrais, sobretudo em remanescentes de vegetação natural presentes na região central do estado.
Cybele de Oliveira ARAUJO
doaj   +1 more source