| Revue: | Anais da Academia Brasileira de Ciencias |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000436314 |
| ISSN: | 0001-3765 |
| Autores: | Brum, Amanda J.C1 Loebens, Luiza1 Santos, Maurício B. dos3 Cechin, Sonia Z1 |
| Instituciones: | 1Universidade Federal de Santa Maria, Programa de Pos-Graduacao em Biodiversidade Animal, Santa Maria, Rio Grande do Sul. Brasil 2Universidade Federal de Santa Maria, Departamento de Ecologia e Evolucao, Santa Maria, Rio Grande do Sul. Brasil 3Universidade Federal de Santa Maria, Programa de Pos-Graduacao em Bioquimica Toxicologica, Santa Maria, Rio Grande do Sul. Brasil |
| Año: | 2019 |
| Volumen: | 91 |
| Número: | 4 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
| Resumen en inglés | Skeletochronology is the most accurate method to estimate a population age structure. The methodology is based on the analysis of secondary bone tissue in order to count growth rings. This study aimed to provide initial data, allowing researchers to further work out in the age of individuals and populations, sampling evidence of the presence of growth rings in 11 native species (representing nine families) of a subtropical region of southern Brazil. Four bone samples of each specimen were used to perform the skeletochronological analysis: the penultimate phalanges of the 3rd and 4th fingers, the humerus, and the femur. The presence of growth rings was confirmed in the periosteal layer of the bones of all analyzed species. In comparison with phalanges, growth rings of humeri and femora are more irregular and less distinguishable. This is the first record of growth rings to the native species herein analised. The skeletochronology was proved to be an effective tool in determining the age of anuran amphibians from a subtropical region, since this environment presents well defined climatic seasonality |
| Disciplinas: | Biología |
| Palabras clave: | Anfibios y reptiles, Reproducción y desarrollo, Ranas, Determinación de la edad, Anillos de crecimiento, Huesos |
| Keyword: | Amphibians and reptiles, Reproduction and development, Frogs, Age determination, Growth rings, Bones |
| Texte intégral: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
