Warming and top predator loss drive ecosystem multifunctionality

Autor(es)

Antiqueira, Pablo Augusto P. ^[1] ; Petchey, Owen L. ^{[2, 3]} ; Romero, Gustavo Quevedo ^{[4, 5]}

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas UNICAMP, Inst Biol, Programa Posgrad Ecol, Campinas, SP - Brazil

^[2] Univ Zurich, Dept Evolutionary Biol & Environm Studies, Zurich - Switzerland

^[3] Univ Zurich, URPP Global Change & Biodivers, Zurich - Switzerland

^[4] Univ Estadual Campinas UNICAMP, Inst Biol, Dept Biol Anim, Campinas, SP - Brazil

^[5] Brazilian Res Network Climate Change Rede Clima, Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ECOLOGY LETTERS; v. 21, n. 1, p. 72-82, JAN 2018.
• Citações Web of Science: 12

Resumo

Global change affects ecosystem functioning both directly by modifications in physicochemical processes, and indirectly, via changes in biotic metabolism and interactions. Unclear, however, is how multiple anthropogenic drivers affect different components of community structure and the performance of multiple ecosystem functions (ecosystem multifunctionality). We manipulated small natural freshwater ecosystems to investigate how warming and top predator loss affect seven ecosystem functions representing two major dimensions of ecosystem functioning, productivity and metabolism. We investigated their direct and indirect effects on community diversity and standing stock of multitrophic macro and microorganisms. Warming directly increased multifunctional ecosystem productivity and metabolism. In contrast, top predator loss indirectly affected multifunctional ecosystem productivity via changes in the diversity of detritivorous macroinvertebrates, but did not affect ecosystem metabolism. In addition to demonstrating how multiple anthropogenic drivers have different impacts, via different pathways, on ecosystem multifunctionality components, our work should further spur advances in predicting responses of ecosystems to multiple simultaneous environmental changes. (AU)

• Processo FAPESP: 16/01209-9 - Efeitos das mudanças climáticas sobre estrutura de redes tróficas em gradientes latitudinais
• Beneficiário: Gustavo Quevedo Romero
• Modalidade de apoio: Bolsas no Exterior - Pesquisa
• Processo FAPESP: 14/04603-4 - Efeitos do aquecimento global na estrutura trófica e no funcionamento ecossistêmico em bromélias-tanque
• Beneficiário: Pablo Augusto Poleto Antiqueira
• Modalidade de apoio: Bolsas no Brasil - Doutorado