A5014800376- Amphibian and Reptile Biology
- Bat Biology and Ecology Studies
- Animal Vocal Communication and Behavior
- Animal Behavior and Reproduction
- Lepidoptera: Biology and Taxonomy
- Species Distribution and Climate Change
- Turtle Biology and Conservation
- Chromosomal and Genetic Variations
- Animal and Plant Science Education
- Scarabaeidae Beetle Taxonomy and Biogeography
- Wildlife-Road Interactions and Conservation
- Genomics and Phylogenetic Studies
- Fish biology, ecology, and behavior
Universidad de la República
2024
Pontifícia Universidade Católica do Rio Grande do Sul
2017-2024
Universidade Federal do Pampa
2024
Universidade Federal de Santa Maria
2024
University of the Andes
2017
Colegio de Postgraduados
2013
Universidad de Los Andes
2011
Boana xerophylla is a common treefrog widely distributed in northern Brazil, Colombia, French Guiana, Guyana, Panama, Suriname, Trinidad and Tobago, Venezuela. A recent study found molecular, acoustic, morphometric differences between the populations located on opposite sides of Orinoco River. Here, we carry out an updated molecular phylogenetic analysis, including new samples from all countries along distribution area, analyzed additional call recordings Our inference reveals three...
Anurans emit advertisement calls with the purpose of attracting mates and repelling conspecific competitors. The evolution call traits is expected to be associated anatomical behavioural due physics emission transmission. vocalizations might imply trade-offs other energetically costly behaviours, such as parental care. Here, we investigated association between body size, calling site, care properties (call duration, number notes, peak frequency, frequency bandwidth structure) glassfrogs...
Abstract The acoustic adaptation hypothesis (AAH) and ecological character displacement (ECD) are two potential mechanisms shaping call evolution that can predict opposite trends for the differentiation of signals. Under AAH, signals evolve to minimize environmental degradation maximize detection against background noise, predicting homogenization in similar habitats due constraints on In contrast, ECD predicts greater differences traits closely related taxa sympatry because selection...
Abstract Anuran males emit advertisement calls for the purpose of attracting females and repelling conspecific males. Call transmission is influenced by acoustics propagation environment, including vegetation. Thus, forestry monocultures non‐native trees represent artificial environments that could modify call transmission. These have substituted large areas Atlantic Forest in southern Brazil, representing a conservation challenge. Considering this context, we hypothesized anurans are less...
Salamanders found at different localities nearby Mérida city, Venezuela, are thus far reported as Bolitoglossa orestes or B.spongai. However, morphological ambiguities among individuals from several populations of both putative species, besidestheir disparate geographical distributions, prompted us to clarify the specific identity these bolitoglossines throughthe sequence analysis their corresponding 16S rRNA genes. Seventeen specimens belonging vertebrates collection ofUniversidad de Los...
Male frogs emit stereotypical advertisement calls to attract mates and deter conspecific rivals. The evolution of these is thought be linked anatomical constraints the acoustic characteristics their surroundings. adaptation hypothesis (AAH) posits that species evolve maximize propagation distance reduce signal degradation in environment where they are emitted. We applied phylogenetic comparative analyses study association body size, vegetation density, type aquatic ecosystem, calling site on...
In this article, a new species of salamander the genus Bolitoglossa (Eladinea) from cloud forest near La Mucuy in Sierra Nevada de Mérida, Venezuelan Andes, is described. mucuyensis sp. nov. differs all salamanders, except B. orestes, by larger SVL/TL ratio, and Culata orestes reduced webbing extension front hind limbs. Additionally, diverge 3.12% terms nucleotide sequence 16S rRNA gene, as previously reported, 8.1% for cytb gene shown study.
Abstract Body and limb size are associated with many aspects of the biology animals. Geographic variation in morphological traits has often been investigated through ecogeographical rules. Bergmann's rule posits an inverse relationship between body temperature homeotherms, while Allen's that endothermic animals inhabiting colder climates have relatively shorter protruding parts (e.g., limbs) comparison to populations from warmer climates. However, applicability validity these rules...
Boana pugnax is a treefrog inhabiting open lowlands from southern Central America and northwestern South America. Its geographic distribution in Venezuela poorly understood due, part, its morphological similarity with B. xerophylla (with which frequently confused) the few localities documented. In order to increase knowledge of country, we examined specimens deposited 4 Venezuelan museums, compiled locality records pugnax, generated model potential for species. We report 46 new species...