Variación temporal de recursos y su control sobre las interacciones planta-ave en el bosque seco tropical

Abstract

The bird community responds to environmental heterogeneity, based on the availability of food resources. When resources are provided by plants, birds can access in two ways, directly (flowers - fruit) and indirectly (insects). Our goal was to understand how resource abundance obtained in vegetation (nectar, fruit and herbivores) determine direct interaction patterns (pollination and dispersal) and indirect (predation of herbivores) plant-bird and to what extent there is a specialization and seasonality in the use of these resources. Sampling lasted for nine months through observations, plots and transects. As results we have that there must exist a positive relationship between the availability of food resources and existing interactions by birds. Seasonality of the ecosystem influences on bird species that are present in a particular weather station (wet and / or dry), and there would be a specificity or preference of birds for the plants with which they interact.