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Effects of a regenerating matrix on the survival of birds in tropical forest fr...
Wolfe, Jared D.; Stouffer, Philip C.; Bierregaard, Richard O.; Luther, David Andrew; Lovejoy, Thomas E.Background: Vast areas of lowland neotropical forest have regenerated after initially being cleared for agricultural purposes. The ecological value of regenerating second growth to forest-dwelling birds may largely depend on the age of the forest, associated vegetative structure, and when it is capable of sustaining avian demographics similar to those found in pristine forest. Methods: To determine the influenc...
Understory bird communities in Amazonian rainforest fragments: Species turnover...
Stouffer, Philip C.; Johnson, Erik I.; Bierregaard, Richard O.; Lovejoy, Thomas E.Inferences about species loss following habitat conversion are typically drawn from short-term surveys, which cannot reconstruct long-term temporal dynamics of extinction and colonization. A long-term view can be critical, however, to determine the stability of communities within fragments. Likewise, landscape dynamics must be considered, as second growth structure and overall forest cover contribute to process...
Rates of species loss from Amazonian forest fragments
Ferraz, Gonçalo; Russell, Gareth J.; Stouffer, Philip C.; Bierregaard, Richard O.; Pimm, Stuart; Lovejoy, Thomas E.In the face of worldwide habitat fragmentation, managers need to devise a time frame for action. We ask how fast do understory bird species disappear from experimentally isolated plots in the Biological Dynamics of Forest Fragments Project, central Amazon, Brazil. Our data consist of mist-net records obtained over a period of 13 years in 11 sites of 1, 10, and 100 hectares. The numbers of captures per species p...
Recovery potential of understory bird communities in Amazonian rainforest fragm...
Stouffer, Philip C.; Bierregaard, Richard O.Understory bird communities have been studied in a series of Amazonian rainforest fragments near Manaus, Brazil for about 20 years. Previous analysis of standardized mist-net samples revealed considerable temporal dynamism in capture rates, with communities in fragments responding to growth or cutting of the second growth matrix. This pattern was superimposed on expected fragment size effects among the 1-, 10-,...