Diversidad de insectos y aves insectivoras de sotobosque en hábitats pertubados de selva lluviosa tropical
To examine variation in species composition, stability and diversity of insectivorous birds and their prey in understory habitats of disturbed rainforest, from March 1993 to May 1994 we measured structural variables of the vegetation and quantified bird and insect species richness and diversity at eight plots ranging from 0 to over 10 years of secondary succesion. Of all the vegetation variables, only canopy cover tended. to increase with forest age. Variation of DBH classes and total density of plants among plots explained changes in both insect richness and diversity. While variation in bird species richness and diversity among plots did not show significant trends, the abundance of insectivores was related both to foliage height diversitv and DBH diversity. Insect abundance explained both bird abundance and species richness, and insect richness was an adequate predictor of abundance of insectivorous birds. The polar coordinates of the study plots (Bray-Curtis ordination based on the abundances of insectivorous birds) were inversely related to forest age.
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Instituto de Ciencias Naturales
1997
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| Online Access: | https://revistas.unal.edu.co/index.php/cal/article/view/17460 |
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