Long-term change in the avifauna of undisturbed Amazonian rainforest: ground-foraging birds disappear and the baseline shifts.

Autor: Stouffer PC; School of Renewable Natural Resources, Louisiana State University AgCenter and Louisiana State University, Baton Rouge, LA, 70803, USA.; Biological Dynamics of Forest Fragments Project, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, 69011, Brazil., Jirinec V; School of Renewable Natural Resources, Louisiana State University AgCenter and Louisiana State University, Baton Rouge, LA, 70803, USA.; Biological Dynamics of Forest Fragments Project, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, 69011, Brazil., Rutt CL; School of Renewable Natural Resources, Louisiana State University AgCenter and Louisiana State University, Baton Rouge, LA, 70803, USA.; Biological Dynamics of Forest Fragments Project, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, 69011, Brazil.; Department of Biology, George Mason University, Fairfax, VA, 22030, USA., Bierregaard RO Jr; Biological Dynamics of Forest Fragments Project, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, 69011, Brazil., Hernández-Palma A; School of Renewable Natural Resources, Louisiana State University AgCenter and Louisiana State University, Baton Rouge, LA, 70803, USA.; Biological Dynamics of Forest Fragments Project, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, 69011, Brazil.; Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Avenida Paseo Bolívar 16-20, Bogotá, D.C, Colombia., Johnson EI; School of Renewable Natural Resources, Louisiana State University AgCenter and Louisiana State University, Baton Rouge, LA, 70803, USA.; Biological Dynamics of Forest Fragments Project, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, 69011, Brazil.; National Audubon Society, 5615 Corporate Blvd. #600b, Baton Rouge, LA, 70808, USA., Midway SR; Department of Oceanography and Coastal Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA., Powell LL; School of Renewable Natural Resources, Louisiana State University AgCenter and Louisiana State University, Baton Rouge, LA, 70803, USA.; Biological Dynamics of Forest Fragments Project, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, 69011, Brazil.; School of Biological and Biomedical Sciences, Durham University, Durham, DH1 3LE, UK., Wolfe JD; School of Renewable Natural Resources, Louisiana State University AgCenter and Louisiana State University, Baton Rouge, LA, 70803, USA.; Biological Dynamics of Forest Fragments Project, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, 69011, Brazil.; College of Forest Resources and Environmental Science, Michigan Technological University, Houghton, MI, 49931, USA., Lovejoy TE; Biological Dynamics of Forest Fragments Project, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, 69011, Brazil.; Department of Environmental Science and Policy, George Mason University, Fairfax, VA, 22030-4444, USA.
Jazyk: angličtina
Zdroj: Ecology letters [Ecol Lett] 2021 Feb; Vol. 24 (2), pp. 186-195. Date of Electronic Publication: 2020 Oct 26.
DOI: 10.1111/ele.13628
Abstrakt: How are rainforest birds faring in the Anthropocene? We use bird captures spanning > 35 years from 55 sites within a vast area of intact Amazonian rainforest to reveal reduced abundance of terrestrial and near-ground insectivores in the absence of deforestation, edge effects or other direct anthropogenic landscape change. Because undisturbed forest includes far fewer terrestrial and near-ground insectivores than it did historically, today's fragments and second growth are more impoverished than shown by comparisons with modern 'control' sites. Any goals for bird community recovery in Amazonian second growth should recognise that a modern bird community will inevitably differ from a baseline from > 35 years ago. Abundance patterns driven by landscape change may be the most conspicuous manifestation of human activity, but biodiversity declines in undisturbed forest represent hidden losses, possibly driven by climate change, that may be pervasive in intact Amazonian forests and other systems considered to be undisturbed.
(© 2020 John Wiley & Sons Ltd.)
Databáze: MEDLINE
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