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| Format: | Artículo científico |
| Sprache: | es |
| Veröffentlicht: |
Universidad de Costa Rica
2009
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| Online-Zugang: | https://www.redalyc.org/articulo.oa?id=44911876032 |
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Inhaltsangabe:
- Perch-height specific predation on tropical lizard clay models: implications for habitat selection in mainland neotropical lizards John E. Steffen Biología Canopy lizard predation clay model tree trunk Predation has been hypothesized to be a strong selective force structuring communities of tropical lizards. Comparisons of perch height and size-based predation frequencies can provide a unique window into understanding how predation might shape habitat selection and morphological patterns in lizards, especially anoles. Here I use plasticine clay models, placed on the trunks of trees and suspended in the canopy to show that predation frequency on clay models differs primarily according to habitat (canopy vs. trunk-ground), but not according to size. These data are discussed in light of observed lizard abundances in the lowland forests of Costa Rica, and are presented as partial explanation for why fewer lizards are found in tree canopies, and more lizards are found on ground-trunk habitats. 2009 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44911876032 es http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.3 Vol.57