Patterns of predation risk and survival of bird nests in a Chilean agricultural landscape

Article Abstract:

Survival of bird nests and patterns of predation risk for the nests have been studied in a Chilean agricultural landscape. Experimental nests were baited with eggs or clay eggs in two large rainforest preserves. Bird-plant mutualisms in the area may be at risk if nesting success of the principal mutualists is consistently low. Nest losses from predation were similar in large and small forest patches and lower in patches than in extensive forest. Variations were seen for different types of vegetation and for different types of nests.

United States, Statistical Data Included, Agriculture, Human beings, Human-environment interactions, Predation (Biology), Birds, Bird eggs, Bird nests, Predation

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Defining corridor functions for endemic birds in fragmented South-temperate rainforest

Article Abstract:

A comparison between vegetated corridors functioning as living space and those potentially suitable for short distance movements only is presented for five species of endemic understory birds inhabiting fragmented temperate rainforest in south-central Chile. The study helps us to understand the design of agricultural landscape that will sustain viable populations of endemic rainforest birds.

Landscape, Rain forests, Endemic species

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An Experimental Test of Matrix Permeability and Corridor Use by an Endemic Understory Bird

Article Abstract:

A translocation experiment involving the bird species Chucao Tapaculo is performed to test bird usage of pasture, shrubs, and wooded corridors in South America's rainforests. Open habitat was found to constrain Chucao movement; protection and restoration of corridors is recommended.

Administration of Conservation Programs, South America, Forest Conservation, Behavior, Comparative analysis, Birds, Protection of, Bird conservation, Forest birds, Spatial behavior in animals, Animal spatial behavior, Corridors (Ecology), Animal spatial behaviour

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