Effects of silvicultural modifications of temperate rainforest on breeding and wintering bird communities, Prince of Wales Island, southeast Alaska

Article Abstract:

Silvicultural practices such as gapping and thinning of young-growth forest enhance and maintain habitat for breeding and wintering birds in the temperate rainforests of Prince of Wales Island, southeast Alaska. The breeding bird species between young- and old-growth treatments are less similar than those among young-growth treatments. Winter severity determines the higher use of old-growth by wintering birds. Thinning young-growth to create more canopy layers, retaining old-growth in clearcuts, and conserving the old-growth temperate rainforest can enhance the bird habitats.

Alaska, Animals, Rain forest ecology, Breeding, Animal wintering

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Mating system of the Dusky Antbird, a tropical passerine, as assessed by DNA fingerprinting

Article Abstract:

The genetic mating system of the Dusky Antbird, a tropical passerine, was studied using multilocus DNA fingerprinting. This technique is a powerful molecular method that assesses genetic mating systems according to behavioral patterns. Results reveal no evidences of extra-pair fertilization among the samples utilized. Furthermore, there were no signs of specific brood parasitism for other samples as well.

Research, DNA testing, DNA identification, Passeriformes, Perching birds, Sexual behavior in animals, Animal sexual behavior

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Antbird guilds in the lowland Carribean rainforest of Southeast Nicaragua

Article Abstract:

Research observing the populations of antbirds and their guilds in the rainforest of South East Nicaragua is presented. Particular attention is given to types of bird species contained in each bird guild, as well as differences between guilds.

Environmental aspects, Nicaragua

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