Results 11 to 20 of about 304 (105)
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 +3 more
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Exceptional Visual-Opsin Coexpression and Phenotypic Diversity in Outer-Retinal Photoreceptors of Caenophidian Snakes. [PDF]
J Comp NeurolIn 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 +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 +6 more
europepmc +2 more sources
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 +4 more
wiley +1 more source
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 +4 more
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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 +3 more
wiley +1 more source
Ontogenia dos ossos da cintura peitoral e membros torácicos em embriões de Podocnemis unifilis
Revista de Biologia Neotropical, 2017 Os Testudines abrangem um grupo restrito que combinam aspectos primitivos e derivados, por exemplo, no esqueleto de seus membros. Para descrever a ontogenia do esqueleto da cintura peitoral e dos membros torácicos de Podocnemis unifilis, 66 embriões ...
Fabiano Campos Lima +9 more
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Intracoelomic pressure and coelomic perfusion pressure in healthy tegus (Salvator merianae)
Ciência Rural, 2018 : The evaluation of intracoelomic pressure is very important, as many diseases can culminate with an increase in intracoelomic pressure and a consequent reduction in perfusion of the abdominal organs.
André Nicolai Elias da Silva +2 more
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Advances in Zoology, Volume 2014, Issue 1, 2014., 2014 Comparisons of advertisement calls of anurans can be used to determine intra‐ and interspecific differences or affinities. Described from midwestern Brazil, Pseudopaludicola mystacalis is widely distributed and abundant in major open Brazilian ecosystems.
André Pansonato +5 more
wiley +1 more source