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Title: Quantifying the biodiversity value of tropical primary, secondary, and plantation forests
Authors: Barlow, Jos
Gardner, Toby Alan
Araújo, Ivanei Souza
Ávila-Pires, Teresa Cristina Sauer
Bonaldo, Alexandre Bragio
Costa, Joana E.
Espósito, Maria Cristina
Ferreira, Leandro Valle
Hawes, Joseph E.
Hernández, Malva Isabel Medina
Hoogmoed, Marinus Steven
Leite, Rafael N.
Lo-Man-Hung, N. F.
Malcolm, Jay R.
Martíns, Marlúcia Bonifácio
Mestre, Luiz Augusto Macedo
Miranda-Santos, Ronildon
Nunes-Gutjahr, Ana Lúcia
Overal, William L.
Parry, Luke
Peters, Sandra L.
Ribeiro-Júnior, Marco A.
Silva, Maria Nazareth Ferreira da
Motta, Catarina da Silva
Peres, Carlos A.
Keywords: Biodiversity
Community Structure
Conservation Biology
Environmental Monitoring
Land Use
Priority Journal
Tropical Climate
Issue Date: 2007
metadata.dc.publisher.journal: Proceedings of the National Academy of Sciences of the United States of America
metadata.dc.relation.ispartof: Volume 104, Número 47, Pags. 18555-18560
Abstract: Biodiversity loss from deforestation may be partly offset by the expansion of secondary forests and plantation forestry in the tropics. However, our current knowledge of the value of these habitats for biodiversity conservation is limited to very few taxa, and many studies are severely confounded by methodological shortcomings. We examined the conservation value of tropical primary, secondary, and plantation forests for 15 taxonomic groups using a robust and replicated sample design that minimized edge effects. Different taxa varied markedly in their response to patterns of land use in terms of species richness and the percentage of species restricted to primary forest (varying from 5% to 57%), yet almost all between-forest comparisons showed marked differences in community structure and composition. Cross-taxon congruence in response patterns was very weak when evaluated using abundance or species richness data, but much stronger when using metrics based upon community similarity. Our results show that, whereas the biodiversity indicator group concept may hold some validity for several taxa that are frequently sampled (such as birds and fruit-feeding butterflies), it fails for those exhibiting highly idiosyncratic responses to tropical land-use change (including highly vagile species groups such as bats and orchid bees), highlighting the problems associated with quantifying the biodiversity value of anthropogenic habitats. Finally, although we show that areas of native regeneration and exotic tree plantations can provide complementary conservation services, we also provide clear empirical evidence demonstrating the irreplaceable value of primary forests. © 2007 by The National Academy of Sciences of the USA.
metadata.dc.identifier.doi: 10.1073/pnas.0703333104
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