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http://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1945| Growth effort of Sceloporus scalaris (Sauria: Phrynosomatidae) at La Michilía Biosphere Reserve, Mexico | |
| Alfredo Ortega Rubio GONZALO HALFFTER SALAS Aradit Castellanos Vera Federico Salinas Zavala | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| URL: https://revistas.ucr.ac.cr/index.php/rbt/article/view/19423 ISSN: 2215-2075 | |
| Durango, Growth Effort, La Michilía Biosphere Reserve, Lizards, Mexico, Sceloporus sealaris | |
| "Using Mark-Recapture methods the growth effort of Sceloporus scalaris was studied at La Michilía Biosphere Reserve, Durango, Mexico. A total of 146 recaptures on 68 individuals were obtained over four years on a 50 000 m2 transect. To calculate the growth rate of Sceloporus scalaris individuals, we analyzed the data from two sources. The first using the recapture records of the same individuals over different seasons and the second using the records of cohorts during different periods. The growth effort of S. scalaris drastically diminishes as the organism grows. The growth rate of males and females is about equal for individuals from both clutches. In adults, where it is possible to compare among seasons, we measure quicker growth during the spring. The growth paltern of S. scalaris at La MichiIía follows the predictions proposed by the Bertalanffy model. Maximum growth rates are in the younger age classes and these rates decrease as size increases. The growing period of S. scalaris is correlated with the seasons at La Michilía Biosphere Reserve. Newborn S. scalaris appear when the availability of nourishment is still the most propitious for growth at faster rates. Such adaptations to the environment determine many key population attributes of this species in this zone. The sexual maturiry age of S. sealaris is very early at La Michilía, only 4.5 to 6 months. Undoubtedly, the growth partern of S. scalaris at La MichiIía Biosphere Reserve can help explain the structure and dynamics of this population. " | |
| Universidad de Costa Rica | |
| 1998 | |
| Artículo | |
| REVISTA DE BIOLOGIA TROPICAL | |
| Inglés | |
| HERPETOLOGÍA | |
| Versión publicada | |
| publishedVersion - Versión publicada | |
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| Revista de Biología Tropical 1998 v46 n1 pp145-155.pdf | 856.14 kB | Adobe PDF | Visualizar/Abrir |