Data from the North American Breeding Bird Survey indicate that populations of many species of neo-tropical migrant birds have declined over the past three decades. Processes operating during the non-breeding season may be particularly important in driving declines, yet data linking wintering and breeding populations are currently few. The scarcity of data on the winter ecology of neo-tropical migrants is especially alarming because most natural habitats in Central America (where most of these species over-winter) are currently considered �vulnerable, threatened, or endangered� due to direct human impacts. Wetland habitats, such as mangrove and riparian forests along the Pacific Flyway are particularly important for over-wintering bird spec...
Northwestern Costa Rica is among the least known districts of the country in terms of ornithic fauna...
Abstract. In both spring and autumn, millions of migratory birds of prey that breed mainly in North ...
Few studies have attempted to quantify the long-term survivorship of birds of nonforest habitats in ...
Previous studies in Monteverde, Costa Rica, have shown that numerous bird species are moving upslope...
The ecological and conservation implications of site fidelity among nearctic-neotropical migrant son...
In this experiment, avifauna of the transformed Costa Rican premontane moist forest was censused usi...
La riqueza avifaunística en los manglares es relativamente alta contrastando con su pobre diversidad...
La riqueza avifaunística en los manglares es relativamente alta contrastando con su pobre diversidad...
Due to its high sensitiveness, tropical biodiversity is a privileged target for the study of the eff...
Field work was conducted since late July until late December 2002 near Tortuguero, northern Caribbea...
Birds are the main seed dispersers in neotropical ecosystems and it is important to understand their...
The current biodiversity crisis involves major shifts in biological communities at local and regiona...
Directional climate change has shown upslope movements of bird species in both observational studies...
Here, we summarize results of migrant bird research in the Caribbean as part of a 75th Anniversary S...
Northwestern Costa Rica is among the least known districts of the country in terms of ornithic fauna...
Northwestern Costa Rica is among the least known districts of the country in terms of ornithic fauna...
Abstract. In both spring and autumn, millions of migratory birds of prey that breed mainly in North ...
Few studies have attempted to quantify the long-term survivorship of birds of nonforest habitats in ...
Previous studies in Monteverde, Costa Rica, have shown that numerous bird species are moving upslope...
The ecological and conservation implications of site fidelity among nearctic-neotropical migrant son...
In this experiment, avifauna of the transformed Costa Rican premontane moist forest was censused usi...
La riqueza avifaunística en los manglares es relativamente alta contrastando con su pobre diversidad...
La riqueza avifaunística en los manglares es relativamente alta contrastando con su pobre diversidad...
Due to its high sensitiveness, tropical biodiversity is a privileged target for the study of the eff...
Field work was conducted since late July until late December 2002 near Tortuguero, northern Caribbea...
Birds are the main seed dispersers in neotropical ecosystems and it is important to understand their...
The current biodiversity crisis involves major shifts in biological communities at local and regiona...
Directional climate change has shown upslope movements of bird species in both observational studies...
Here, we summarize results of migrant bird research in the Caribbean as part of a 75th Anniversary S...
Northwestern Costa Rica is among the least known districts of the country in terms of ornithic fauna...
Northwestern Costa Rica is among the least known districts of the country in terms of ornithic fauna...
Abstract. In both spring and autumn, millions of migratory birds of prey that breed mainly in North ...
Few studies have attempted to quantify the long-term survivorship of birds of nonforest habitats in ...