Estimation of Caiman crocodilus (Crocodilia: Alligatoridae) abundance in Caño Negro, Costa Rica, with the N-mixture model
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| Autor: | |
|---|---|
| Médium: | artículo original |
| Stav: | Versión publicada |
| Datum vydání: | 2019 |
| Popis: | the size (N) of the crocodilian populations can rarely be determined accurately. Objective: to compare methods, the abundance of Caiman crocodilus was estimated for a single population in Costa Rica with spatially replicated counts, with the N-mixture Model and the Messel Method. Methods: I counted caimans at night along 21km of the river Frío (Betel-Boga Sabogal). I divided the stretch into 32 segments (500m) spaced 200m from each other. Results: the N-Mixture model produced an estimate of 2 162 individuals and the Messel 373. Conclusion: spatially replicated counts, analyzed with the N-Mixture model, seem to provide more reliable data. |
| Země: | Portal de Revistas UNED |
| Instituce: | Universidad Estatal a Distancia |
| Repositorio: | Portal de Revistas UNED |
| Jazyk: | Español |
| OAI Identifier: | oai:revistas.investiga.uned.ac.cr:article/2296 |
| On-line přístup: | https://revistas.uned.ac.cr/index.php/cuadernos/article/view/2296 |
| Klíčové slovo: | conservation nocturnal visual counts population size wildlife management Messel method monitoring. |