Changes in the population of structure of the spectacled caiman, Caiman crocodilus (Crocodilia: Caimanidae) and its possible relation with climate change, in Caño Negro, Costa Rica
সংরক্ষণ করুন:
| লেখক: | |
|---|---|
| বিন্যাস: | artículo original |
| বর্তমান অবস্থা: | Versión publicada |
| প্রকাশনার তারিখ: | 2017 |
| বিবরন: | The spectacled caiman, Caiman crocodilus, is ecologically and economicaly important in some areas of Latin America. In Costa Rica it is not abundant and there is a need for population data. I studied it in Caño Negro National Wildlife Refuge, Costa Rica, through the collection and comparison of previous studies and the incorporation of recent information. I made night boat trips with a 2 million lumen lamp (400m spectrum) and manually captured individuals under 60cm long. For larger sizes or animals located in areas of difficult access, I used Thompson ties and 2m long poles with an inserted rope, and captured 180 caiman. Most were sub-adults and there were 1:12 females per male, unusually high for the species and possibly caused by environmental conditions. The efects of global warming could disrupt the sex ratio and reproductive structure of spectacled caimans. |
| দেশ: | Portal de Revistas UNED |
| প্রতিষ্ঠান: | Universidad Estatal a Distancia |
| Repositorio: | Portal de Revistas UNED |
| ভাষা: | Español |
| OAI Identifier: | oai:revistas.investiga.uned.ac.cr:article/1691 |
| অনলাইন ব্যবহার করুন: | https://revistas.uned.ac.cr/index.php/cuadernos/article/view/1691 |
| মুখ্য শব্দ: | Caymans conservation crocodylians wildlife manage¬ment sex ratio. caimán conservación crocodilianos manejo de vida silvestre proporción de sexos |