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Functional Extinction of Birds Drives Rapid Evolutionary Changes in Seed Size

Galetti, Mauro ; Guevara, Roger ; Côrtes, Marina C. ; Fadini, Rodrigo ; Von Matter, Sandro ; Leite, Abraão B. ; Labecca, Fábio ; Ribeiro, Thiago ; Carvalho, Carolina S. ; Collevatti, Rosane G. ; Pires, Mathias M. ; Guimarães, Paulo R. ; Brancalion, Pedro H. ; Ribeiro, Milton C. ; Jordano, Pedro

Science (American Association for the Advancement of Science), 2013-05, Vol.340 (6136), p.1086-1090 [Periódico revisado por pares]

Washington, DC: American Association for the Advancement of Science

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Título:
Functional Extinction of Birds Drives Rapid Evolutionary Changes in Seed Size
Autor: Galetti, Mauro ; Guevara, Roger ; Côrtes, Marina C. ; Fadini, Rodrigo ; Von Matter, Sandro ; Leite, Abraão B. ; Labecca, Fábio ; Ribeiro, Thiago ; Carvalho, Carolina S. ; Collevatti, Rosane G. ; Pires, Mathias M. ; Guimarães, Paulo R. ; Brancalion, Pedro H. ; Ribeiro, Milton C. ; Jordano, Pedro
Assuntos: Animal and plant ecology ; Animal, plant and microbial ecology ; Animals ; Applied ecology ; Arecaceae ; Aves ; Biological and medical sciences ; Biological Evolution ; Birds ; Brazil ; Climate change ; Conservation, protection and management of environment and wildlife ; Demecology ; Environmental degradation: ecosystems survey and restoration ; Evolution ; Evolutionary biology ; Extinct species ; Extinction, Biological ; Feeding Behavior ; Forest regeneration ; Forestry ; Fruits ; Fundamental and applied biological sciences. Psychology ; General forest ecology ; Generalities. Production, biomass. Quality of wood and forest products. General forest ecology ; Germination ; Plant ecology ; Plants and fungi ; Seed size ; Seeds ; Seeds - anatomy & histology ; Seeds - physiology ; Species ; Species extinction ; Trees ; Tropical rain forests
É parte de: Science (American Association for the Advancement of Science), 2013-05, Vol.340 (6136), p.1086-1090
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Local extinctions have cascading effects on ecosystem functions, yet little is known about the potential for the rapid evolutionary change of species in human-modified scenarios. We show that the functional extinction of large-gape seed dispersers in the Brazilian Atlantic forest is associated with the consistent reduction of the seed size of a keystone palm species. Among 22 palm populations, areas deprived of large avian frugivores for several decades present smaller seeds than nondefaunated forests, with negative consequences for palm regeneration. Coalescence and phenotypic selection models indicate that seed size reduction most likely occurred within the past 100 years, associated with human-driven fragmentation. The fast-paced defaunation of large vertebrates is most likely causing unprecedented changes in the evolutionary trajectories and community composition of tropical forests.
Editor: Washington, DC: American Association for the Advancement of Science
Idioma: Inglês

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Functional Extinction of Birds Drives Rapid Evolutionary Changes in Seed Size

Galetti, Mauro ; Guevara, Roger ; Côrtes, Marina C. ; Fadini, Rodrigo ; Von Matter, Sandro ; Leite, Abraão B. ; Labecca, Fábio ; Ribeiro, Thiago ; Carvalho, Carolina S. ; Collevatti, Rosane G. ; Pires, Mathias M. ; Guimarães, Paulo R. ; Brancalion, Pedro H. ; Ribeiro, Milton C. ; Jordano, Pedro

Washington, DC: American Association for the Advancement of Science

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