Bird communities in two types of anthropogenic successional vegetation in central Amazonia

Article Abstract:

Most bird community studies in central Amazonia have focused on primary forest and forest fragments, but a new study compares the bird communities of Cecropia-dominated and Vismia-dominated successional vegetation. It is shown that bird species are similar in the two types of regrowth, although mixed-flock species and ant-following birds were found in greater abundance in the Cecropia-dominated vegetation, while nonforest omnivores and insectivores were more abundant in Vismia regrowth. It is suggested that the type of human disturbance plays an important part in determining bird communities.

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Effects of forest fragment size and successional stage on mixed-species bird flocks in southeastern Brazil

Article Abstract:

Research is presented concerning the ecology of mixed-species bird flocks in forest fragments in southeastern Brazil. The effect of the size of forest fragments, the season and the stage of forest succession on the richness of the species is discussed.

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Seasonal fluctuations of birds, fruits, and flowers in a subtropical forest of Argentina

Article Abstract:

Research is presented concerning the seasonality of nectarivores and frugivore-insectivores in the subtropical premontane forest of Argentina. The availability of fruit during seasonal bird population variations is discussed.

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