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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Ecological response to altered rainfall differs across the Neotropics

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Autor(es):
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Srivastava, Diane S. [1, 2] ; Cereghino, Regis [3] ; Trzcinski, M. Kurtis [3] ; MacDonald, A. Andrew M. [1, 2, 3] ; Marino, Nicholas A. C. [4, 5] ; Mercado, Dimaris Acosta [6] ; Leroy, Celine [7, 8] ; Corbara, Bruno [9] ; Romero, Gustavo Q. [10] ; Farjalla, Vinicius F. [5] ; Barberis, Ignacio M. [11] ; Dezerald, Olivier [8, 12, 13] ; Hammill, Edd [1, 2, 14, 15] ; Atwood, Trisha B. [14, 15, 16] ; Piccoli, Gustavo C. O. [17] ; Ospina-Bautista, Fabiola [18, 19] ; Carrias, Jean-Francois [9] ; Leal, Juliana S. [5] ; Montero, Guillermo [11] ; Antiqueira, Pablo A. P. [10] ; Freire, Rodrigo [11] ; Realpe, Emilio [18] ; Amundrud, Sarah L. [1, 2] ; deOmena, Paula M. [10] ; Campos, Alice B. A. [5]
Número total de Autores: 25
Afiliação do(s) autor(es):
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[1] Univ British Columbia, Dept Zool, Vancouver, BC V6T 1Z4 - Canada
[2] Univ British Columbia, Biodivers Res Ctr, Vancouver, BC V6T 1Z4 - Canada
[3] Univ Toulouse, Ecolab, Lab Ecol Fonct & Environm, INPT, CNRS, UPS, F-21941901 Toulouse - France
[4] Univ Fed Rio de Janeiro, Programa Posgrad Ecol, BR-68020 Rio de Janeiro, RJ - Brazil
[5] Univ Fed Rio de Janeiro, Ctr Ciencias Saude, Inst Biol, Dept Ecol, BR-68020 Rio De Janeiro, RJ - Brazil
[6] Univ Puerto Rico, Dept Biol, Mayaguez Campus, Mayaguez, PR 00681 - USA
[7] Univ Montpellier, INRA, CNRS, CIRAD, AMAP, IRD, F-34095 Montpellier 5 - France
[8] Univ Antilles, Univ Guyane, AgroParisTech, CNRS, ECOFOG, CIRAD, INRA, F-97379 Kourou - France
[9] Univ Clermont Auvergne, LMGE, CNRS, F-63000 Clermont Ferrand - France
[10] Univ Estadual Campinas, Inst Biol, Dept Anim Biol, Lab Multitroph Interact & Biodivers, UNICAMP, BR-13083862 Campinas, SP - Brazil
[11] Univ Nacl Rosario, Fac Ciencias Agr, Inst Invest Ciencias Agr Rosario, IICAR CONICET UNR, S2125ZAA, Zavalla - Argentina
[12] Univ Lorraine, LIEC, CNRS UMR 7360, Campus Bridoux, F-57070 Metz - France
[13] Agrocampus Ouest, Ecol & Ecosyst Hlth, INRA, 65 Rue St Brieuc, F-35042 Rennes - France
[14] Utah State Univ, Ecol Ctr, Logan, UT 84322 - USA
[15] Utah State Univ, Dept Watershed Sci, Logan, UT 84322 - USA
[16] Univ British Columbia, Dept Forest & Conservat Sci, Vancouver, BC V6T 1Z4 - Canada
[17] Univ Sao Paulo State, Dept Zool & Bot, UNESP IBILCE, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil
[18] Andes Univ, Dept Biol Sci, Bogota 111711 - Colombia
[19] Univ Caldas, Dept Ciencias Biol, Caldas 170001 - Colombia
Número total de Afiliações: 19
Tipo de documento: Artigo Científico
Fonte: ECOLOGY; v. 101, n. 4 FEB 2020.
Citações Web of Science: 1
Resumo

There is growing recognition that ecosystems may be more impacted by infrequent extreme climatic events than by changes in mean climatic conditions. This has led to calls for experiments that explore the sensitivity of ecosystems over broad ranges of climatic parameter space. However, because such response surface experiments have so far been limited in geographic and biological scope, it is not clear if differences between studies reflect geographic location or the ecosystem component considered. In this study, we manipulated rainfall entering tank bromeliads in seven sites across the Neotropics, and characterized the response of the aquatic ecosystem in terms of invertebrate functional composition, biological stocks (total invertebrate biomass, bacterial density) and ecosystem fluxes (decomposition, carbon, nitrogen). Of these response types, invertebrate functional composition was the most sensitive, even though, in some sites, the species pool had a high proportion of drought-tolerant families. Total invertebrate biomass was universally insensitive to rainfall change because of statistical averaging of divergent responses between functional groups. The response of invertebrate functional composition to rain differed between geographical locations because (1) the effect of rainfall on bromeliad hydrology differed between sites, and invertebrates directly experience hydrology not rainfall and (2) the taxonomic composition of some functional groups differed between sites, and families differed in their response to bromeliad hydrology. These findings suggest that it will be difficult to establish thresholds of ``safe ecosystem functioning{''} when ecosystem components differ in their sensitivity to climatic variables, and such thresholds may not be broadly applicable over geographic space. In particular, ecological forecast horizons for climate change may be spatially restricted in systems where habitat properties mediate climatic impacts, and those, like the tropics, with high spatial turnover in species composition. (AU)

Processo FAPESP: 16/01209-9 - Efeitos das mudanças climáticas sobre estrutura de redes tróficas em gradientes latitudinais
Beneficiário:Gustavo Quevedo Romero
Linha de fomento: Bolsas no Exterior - Pesquisa
Processo FAPESP: 12/51143-3 - Mudanças climáticas globais e funcionamento de ecossistemas em fitotelmatas
Beneficiário:Gustavo Quevedo Romero
Linha de fomento: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Regular
Processo FAPESP: 14/04603-4 - Efeitos do aquecimento global na estrutura trófica e no funcionamento ecossistêmico em bromélias-tanque
Beneficiário:Pablo Augusto Poleto Antiqueira
Linha de fomento: Bolsas no Brasil - Doutorado