Author(s):
Srivastava, Diane S. ; Céréghino, Régis ; Trzcinski, M. Kurtis ; MacDonald, A. Andrew M. ; Marino, Nicholas A. C. ; Mercado, Dimaris Acosta ; Leroy, Céline ; Corbara, Bruno ; Romero, Gustavo Q. ; Farjalla, Vinicius F. ; Barberis, Ignacio M. ; Dézerald, Olivier ; Hammill, Edd ; Atwood, Trisha B. ; Piccoli, Gustavo C. O. [UNESP] ; Ospina-Bautista, Fabiola ; Carrias, Jean-François ; Leal, Juliana S. ; Montero, Guillermo ; Antiqueira, Pablo A. P. ; Freire, Rodrigo ; Realpe, Emilio ; Amundrud, Sarah L. ; de Omena, Paula M. ; Campos, Alice B. A.
Date: 2020
Persistent ID: http://hdl.handle.net/11449/200109
Origin: Oasisbr
Subject(s): contingency; distributed experiment; freshwater; global change biology; macroinvertebrates; phytotelmata; precipitation; contingency; contingency; distributed experiment; distributed experiment; freshwater; freshwater; global change biology; global change biology; macroinvertebrates; macroinvertebrates; phytotelmata; phytotelmata; precipitation; precipitation
Description
Made available in DSpace on 2020-12-12T01:58:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-04-01
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Consejo Nacional de Investigaciones Científicas y Técnicas
Natural Sciences and Engineering Research Council of Canada
University of British Columbia
Universidad de los Andes
Labex
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Universidad Nacional de Rosario
Facultad de Ciencias, Universidad de los Andes
Agence Nationale de la Recherche
Agencia Nacional de Promoción Científica y Tecnológica
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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.
Departmetn of Zoology and Biodiversity Research Centre University of British Columbia
Ecolab Laboratoire Ecologie Fonctionnelle et Environnement CNRS UPS INPT Université de Toulouse
Departamento de Ecologia Instituto de Biologia Centro de Ciências da Saúde Universidade Federal do Rio de Janeiro, Ilha do Fundão
Programa de Pós-Graduação em Ecologia Universidade Federal do Rio de Janeiro, Ilha do Fundão
Department of Biology University of Puerto Rico Mayaguez Campus
AMAP IRD CIRAD CNRS INRA Université Montpellier, CEDEX-5
ECOFOG (AgroParisTech CIRAD CNRS INRA Université de Guyane Université des Antilles)
CNRS LMGE (Laboratoire Microorganismes: Génome et Environnement) Université Clermont-Auvergne
Laboratory of Multitrophic Interactions and Biodiversity Department of Animal Biology Institute of Biology University of Campinas (UNICAMP)
Facultad de Ciencias Agrarias Instituto de Investigaciones en Ciencias Agrarias de Rosario IICAR-CONICET-UNR Universidad Nacional de Rosario
Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC)-CNRS UMR 7360 Université de Lorraine, Campus Bridoux
INRA Agrocampus-Ouest Ecology and Ecosystem Health, 65 rue de Saint-Brieuc
Department of Watershed Sciences and the Ecology Center Utah State University
Department of Forest and Conservation Sciences University of British Columbia
Department of Zoology and Botany University of São Paulo State (UNESP/IBILCE)
Department of Biological Sciences Andes University
Departamento de Ciencias Biológicas Universidad de Caldas
Department of Zoology and Botany University of São Paulo State (UNESP/IBILCE)
FAPESP: # 2016/01209-9
Universidad Nacional de Rosario: 01209-9
Universidad Nacional de Rosario: 04603-4
Universidad Nacional de Rosario: 0877
Universidad Nacional de Rosario: 2012
Facultad de Ciencias, Universidad de los Andes: 2012-1
Universidad Nacional de Rosario: 2012-1
FAPESP: 2012/51143-3
Universidad Nacional de Rosario: 2014
Universidad Nacional de Rosario: 2014-9
FAPESP: 2014/04603-4
Universidad Nacional de Rosario: 2016
Universidad Nacional de Rosario: 400454
Universidad Nacional de Rosario: 51143-3
Agence Nationale de la Recherche: ANR-10-LABX-25-01
Agence Nationale de la Recherche: ANR-12-BSV7-0022-01
Agencia Nacional de Promoción Científica y Tecnológica: PICT-2010-1614
CAPES: PNPD-CAPES 2013/0877 PNPD-CAPES 2014/04603-4
