1
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Leclerc C, Reynaud N, Danis PA, Moatar F, Daufresne M, Argillier C, Usseglio-Polatera P, Verneaux V, Dedieu N, Frossard V, Sentis A. Temperature, productivity, and habitat characteristics collectively drive lake food web structure. GLOBAL CHANGE BIOLOGY 2023; 29:2450-2465. [PMID: 36799515 DOI: 10.1111/gcb.16642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 01/07/2023] [Accepted: 02/12/2023] [Indexed: 05/28/2023]
Abstract
While many efforts have been devoted to understand variations in food web structure among terrestrial and aquatic ecosystems, the environmental factors influencing food web structure at large spatial scales remain hardly explored. Here, we compiled biodiversity inventories to infer food web structure of 67 French lakes using an allometric niche-based model and tested how environmental variables (temperature, productivity, and habitat) influence them. By applying a multivariate analysis on 20 metrics of food web topology, we found that food web structural variations are represented by two distinct complementary and independent structural descriptors. The first is related to the overall trophic diversity, whereas the second is related to the vertical structure. Interestingly, the trophic diversity descriptor was mostly explained by habitat size (26.7% of total deviance explained) and habitat complexity (20.1%) followed by productivity (dissolved organic carbon: 16.4%; nitrate: 9.1%) and thermal variations (10.7%). Regarding the vertical structure descriptor, it was mostly explained by water thermal seasonality (39.0% of total deviance explained) and habitat depth (31.9%) followed by habitat complexity (8.5%) and size (5.5%) as well as annual mean temperature (5.6%). Overall, we found that temperature, productivity, and habitat characteristics collectively shape lake food web structure. We also found that intermediate levels of productivity, high levels of temperature (mean and seasonality), as well as large habitats are associated with the largest and most complex food webs. Our findings, therefore, highlight the importance of focusing on these three components especially in the context of global change, as significant structural changes in aquatic food webs could be expected under increased temperature, pollution, and habitat alterations.
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Affiliation(s)
- Camille Leclerc
- INRAE, Aix-Marseille Univ., RECOVER, Aix-en-Provence, France
- Pôle R&D Écosystèmes Lacustres (ECLA), OFB-INRAE-USMB, Aix-en-Provence, France
| | - Nathalie Reynaud
- INRAE, Aix-Marseille Univ., RECOVER, Aix-en-Provence, France
- Pôle R&D Écosystèmes Lacustres (ECLA), OFB-INRAE-USMB, Aix-en-Provence, France
| | - Pierre-Alain Danis
- Pôle R&D Écosystèmes Lacustres (ECLA), OFB-INRAE-USMB, Aix-en-Provence, France
- OFB, Service ECOAQUA, DRAS, Aix-en-Provence, France
| | - Florentina Moatar
- RiverLy, INRAE, Centre de Lyon-Grenoble Auvergne-Rhône-Alpes, Villeurbanne, France
| | - Martin Daufresne
- INRAE, Aix-Marseille Univ., RECOVER, Aix-en-Provence, France
- Pôle R&D Écosystèmes Lacustres (ECLA), OFB-INRAE-USMB, Aix-en-Provence, France
| | - Christine Argillier
- INRAE, Aix-Marseille Univ., RECOVER, Aix-en-Provence, France
- Pôle R&D Écosystèmes Lacustres (ECLA), OFB-INRAE-USMB, Aix-en-Provence, France
| | | | - Valérie Verneaux
- UMR CNRS 6249, Laboratoire Chrono-Environnement, Univ. Bourgogne Franche-Comté, Besançon, France
| | - Nicolas Dedieu
- UMR CNRS 6249, Laboratoire Chrono-Environnement, Univ. Bourgogne Franche-Comté, Besançon, France
| | - Victor Frossard
- Pôle R&D Écosystèmes Lacustres (ECLA), OFB-INRAE-USMB, Aix-en-Provence, France
- Université Savoie Mont-Blanc, INRAE, CARRTEL, Thonon-les-Bains, France
| | - Arnaud Sentis
- INRAE, Aix-Marseille Univ., RECOVER, Aix-en-Provence, France
- Pôle R&D Écosystèmes Lacustres (ECLA), OFB-INRAE-USMB, Aix-en-Provence, France
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2
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Srivastava DS, MacDonald AAM, Pillar VD, Kratina P, Debastiani VJ, Guzman LM, Trzcinski MK, Dézerald O, Barberis IM, de Omena PM, Romero GQ, Ospina Bautista F, Marino NAC, Leroy C, Farjalla VF, Richardson BA, Gonçalves AZ, Corbara B, Petermann JS, Richardson MJ, Melnychuk MC, Jocqué M, Ngai JT, Talaga S, Piccoli GCO, Montero G, Kirby KR, Starzomski BM, Céréghino R. Geographical variation in the trait‐based assembly patterns of multitrophic invertebrate communities. Funct Ecol 2022. [DOI: 10.1111/1365-2435.14096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Diane S. Srivastava
- Department of Zoology & Biodiversity Research Centre University of British Columbia Vancouver BC Canada
| | - A. Andrew M. MacDonald
- Laboratoire Ecologie Fonctionnelle et Environnement, CNRS Université Toulouse 3 Paul Sabatier Toulouse France
- Centre for the Synthesis and Analysis of Biodiversity (CESAB‐FRB), Montpellier, France the Synthesis and Analysis of Biodiversity (CESAB‐FRB), Aix‐en‐Provence France
| | - Valério D. Pillar
- Department of Ecology and Graduate Program in Ecology, Universidade Federal do Rio Grande Porto Alegre RS Brazil
| | - Pavel Kratina
- School of Biological and Behavioural Sciences Queen Mary University of London London UK
| | - Vanderlei J. Debastiani
- Department of Ecology and Graduate Program in Ecology, Universidade Federal do Rio Grande Porto Alegre RS Brazil
| | - Laura Melissa Guzman
- Department of Zoology & Biodiversity Research Centre University of British Columbia Vancouver BC Canada
- Department of Biological Sciences Simon Fraser University Burnaby BC Canada
| | - M. Kurtis Trzcinski
- Department of Forest and Conservation Sciences University of British Columbia Vancouver BC Canada
| | - Olivier Dézerald
- EcoFoG, Ecologie des Forêts de Guyane, CNRS UMR 8172 Kourou France
- ESE, Ecology and Ecosystems Health, INRAE, Agrocampus Ouest, 35042 Rennes France
| | - Ignacio M. Barberis
- Facultad de Ciencias Agrarias, Instituto de Investigaciones en Ciencias Agrarias de Rosario, IICAR‐CONICET‐UNR, Universidad Nacional de Rosario Zavalla Argentina
| | - Paula M. de Omena
- Laboratory of Multitrophic Interactions and Biodiversity, Department of Animal Biology, Institute of Biology University of Campinas Campinas SP Brazil
- Institute of Biological Sciences Federal University of Pará Belém PA Brazil
| | - Gustavo Q. Romero
- Laboratory of Multitrophic Interactions and Biodiversity, Department of Animal Biology, Institute of Biology University of Campinas Campinas SP Brazil
| | - Fabiola Ospina Bautista
- Department of Biological Sciences Andes University Departamento de Ciencias Biológicas, Universidad de Caldas Colombia Colombia
- Departamento de Ciencias Biológicas, Universidad de Caldas Colombia
| | - Nicholas A. C. Marino
- Departamento de Ecologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro Rio de Janeiro RJ Brazil
- Programa de Pós‐Graduação em Ecologia, Universidade Federal do Rio de Janeiro Rio de Janeiro RJ Brazil
| | - Céline Leroy
- AMAP, Univ. Montpellier, CIRAD, CNRS, INRAE, IRD Montpellier France
- ECOFOG, CIRAD, CNRS, INRAE, AgroParisTech, Université de Guyane, Université des Kourou France
| | - Vinicius F. Farjalla
- Departamento de Ecologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro Rio de Janeiro RJ Brazil
| | - Barbara A. Richardson
- Edinburgh UK
- Luquillo LTER, Institute for Tropical Ecosystem Studies University of Puerto Rico San Juan Puerto Rico
| | - Ana Z. Gonçalves
- Department of Botany, Biosciences Institute University of São Paulo São Paulo Brazil
| | - Bruno Corbara
- Laboratoire Microorganismes, Génome et Environnement Université Clermont Auvergne Aubière France
| | | | - Michael J. Richardson
- Edinburgh UK
- Luquillo LTER, Institute for Tropical Ecosystem Studies University of Puerto Rico San Juan Puerto Rico
| | | | - Merlijn Jocqué
- Aquatic and Terrestrial Ecology Royal Belgian Institute of Natural Sciences Brussels Belgium
| | - Jacqueline T. Ngai
- Department of Zoology & Biodiversity Research Centre University of British Columbia Vancouver BC Canada
| | - Stanislas Talaga
- Institut Pasteur de la Guyane, Unité d’Entomologie Médicale Cayenne France
- MIVEGEC, Univ. Montpellier, CNRS, IRD Montpellier France
| | - Gustavo C. O. Piccoli
- Department of Zoology and Botany University of São Paulo State São José do Rio Preto SP Brazil
| | - Guillermo Montero
- Facultad de Ciencias Agrarias, Instituto de Investigaciones en Ciencias Agrarias de Rosario, IICAR‐CONICET‐UNR, Universidad Nacional de Rosario Zavalla Argentina
| | - Kathryn R. Kirby
- Department of Forest and Conservation Sciences University of British Columbia Vancouver BC Canada
| | | | - Régis Céréghino
- Laboratoire Ecologie Fonctionnelle et Environnement, CNRS Université Toulouse 3 Paul Sabatier Toulouse France
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3
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Ruiz T, Carrias JF, Bonhomme C, Farjalla VF, Jassey VEJ, Leflaive J, Compin A, Leroy C, Corbara B, Srivastava DS, Céréghino R. Asynchronous recovery of predators and prey conditions resilience to drought in a neotropical ecosystem. Sci Rep 2022; 12:8392. [PMID: 35589855 PMCID: PMC9120075 DOI: 10.1038/s41598-022-12537-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 05/09/2022] [Indexed: 11/09/2022] Open
Abstract
The predicted increase in the intensity and frequency of drought events associated with global climate change will impose severe hydrological stress to freshwater ecosystems, potentially altering their structure and function. Unlike freshwater communities' direct response to drought, their post-drought recovery capacities remain understudied despite being an essential component driving ecosystem resilience. Here we used tank bromeliad as model ecosystem to emulate droughts of different duration and then assess the recovery capacities of ecosystem structure and function. We followed macroinvertebrate predator and prey biomass to characterize the recovery dynamics of trophic structure (i.e. predator-prey biomass ratio) during the post-drought rewetting phase. We showed that drought significantly affects the trophic structure of macroinvertebrates by reducing the predator-prey biomass ratio. The asynchronous recovery of predator and prey biomass appeared as a critical driver of the post-drought recovery trajectory of trophic structure. Litter decomposition rate, which is an essential ecosystem function, remained stable after drought events, indicating the presence of compensatory effects between detritivores biomass and detritivores feeding activity. We conclude that, in a context of global change, the asynchrony in post-drought recovery of different trophic levels may impact the overall drought resilience of small freshwater ecosystems in a more complex way than expected.
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Affiliation(s)
- Thomas Ruiz
- Laboratoire Microorganismes, Génome Et Environnement, CNRS, Université Clermont Auvergne, Clermont-Ferrand, France.
| | - Jean-François Carrias
- Laboratoire Microorganismes, Génome Et Environnement, CNRS, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Camille Bonhomme
- Departamento de Ecología, Instituto de Biologia, Universidade Federal Do Rio de Janeiro (UFRJ), Ilha Do Fundão, Rio de Janeiro, Brazil.,AMAP, Université de Montpellier, CIRAD, CNRS, INRAE, IRD, Montpellier, France
| | - Vinicius F Farjalla
- Departamento de Ecología, Instituto de Biologia, Universidade Federal Do Rio de Janeiro (UFRJ), Ilha Do Fundão, Rio de Janeiro, Brazil
| | - Vincent E J Jassey
- Laboratoire Écologie Fonctionnelle Et Environnement, Université de Toulouse, CNRS, Toulouse INP, Université Toulouse 3-Paul Sabatier (UT3), Toulouse, France
| | - Joséphine Leflaive
- Laboratoire Écologie Fonctionnelle Et Environnement, Université de Toulouse, CNRS, Toulouse INP, Université Toulouse 3-Paul Sabatier (UT3), Toulouse, France
| | - Arthur Compin
- Laboratoire Écologie Fonctionnelle Et Environnement, Université de Toulouse, CNRS, Toulouse INP, Université Toulouse 3-Paul Sabatier (UT3), Toulouse, France
| | - Céline Leroy
- AMAP, Université de Montpellier, CIRAD, CNRS, INRAE, IRD, Montpellier, France.,ECOFOG, CNRS, CIRAD, INRAE, Université Des Antilles, Université de Guyane, Kourou, France
| | - Bruno Corbara
- Laboratoire Microorganismes, Génome Et Environnement, CNRS, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Diane S Srivastava
- Department of Zoology & Biodiversity Research Centre, University of British Columbia, Vancouver, Canada
| | - Régis Céréghino
- Laboratoire Écologie Fonctionnelle Et Environnement, Université de Toulouse, CNRS, Toulouse INP, Université Toulouse 3-Paul Sabatier (UT3), Toulouse, France
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4
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Medeiros ÍLS, de Melo AL, de Melo M. Aquatic invertebrate diversity in tank bromeliads in an enclaved wet forest in Brazil’s semiarid region. STUDIES ON NEOTROPICAL FAUNA AND ENVIRONMENT 2022. [DOI: 10.1080/01650521.2022.2053459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Íttalo Luã Silva Medeiros
- Serra Talhada Academic Unit - UAST, Federal Rural University of Pernambuco - UFRPE, Serra Talhada, Brazil
- Department of Biology, Federal Rural University of Pernambuco - UFRPE, Recife, Brazil
| | - André Laurênio de Melo
- Serra Talhada Academic Unit - UAST, Federal Rural University of Pernambuco - UFRPE, Serra Talhada, Brazil
| | - Mauro de Melo
- Department of Biology, Federal Rural University of Pernambuco - UFRPE, Recife, Brazil
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5
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Laviski BFDS, Monteiro ÍDM, Pinho LC, Baptista RLC, Mayhé‐Nunes AJ, Racca‐Filho F, Nunes‐Freitas AF. Bromeliad habitat regulates the richness of associated terrestrial and aquatic fauna. AUSTRAL ECOL 2021. [DOI: 10.1111/aec.13033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bianca Ferreira da Silva Laviski
- Laboratório de Ecologia Conservação e Mirmecologia Departamento de Ciências Ambientais Universidade Federal Rural do Rio de Janeiro BR‐465, Km 7CEP 23980‐000Seropédica RJBrazil
| | - Ícaro de Moraes Monteiro
- Departamento de Ciências Ambientais Universidade Federal Rural do Rio de Janeiro SeropédicaBrazil
| | - Luiz Carlos Pinho
- Departamento de Ecologia e Zoologia Universidade Federal de Santa Catarina FlorianópolisBrazil
| | | | | | - Francisco Racca‐Filho
- Departamento de Entomologia e Fitopatologia Universidade Federal Rural do Rio de Janeiro Seropédica Brazil
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6
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Nash LN, Antiqueira PAP, Romero GQ, de Omena PM, Kratina P. Warming of aquatic ecosystems disrupts aquatic-terrestrial linkages in the tropics. J Anim Ecol 2021; 90:1623-1634. [PMID: 33955003 DOI: 10.1111/1365-2656.13505] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/08/2021] [Indexed: 12/30/2022]
Abstract
Aquatic ecosystems are tightly linked to terrestrial ecosystems by exchanges of resources, which influence species interactions, community dynamics and functioning in both ecosystem types. However, our understanding of how this coupling responds to climate warming is restricted to temperate, boreal and arctic regions, with limited knowledge from tropical ecosystems. We investigated how warming aquatic ecosystems impact cross-ecosystem exchanges in the tropics, through the export of aquatic resources into the terrestrial environment and the breakdown of terrestrial resources within the aquatic environment. We experimentally heated 50 naturally assembled aquatic communities, contained within different-sized tank-bromeliads, to a 23.5-32°C gradient of mean water temperatures. The biomass, abundance and richness of aquatic insects emerging into the terrestrial environment all declined with rising temperatures over a 45-day experiment. Structural equation and linear mixed effects modelling suggested that these impacts were driven by deleterious effects of warming on insect development and survival, rather than being mediated by aquatic predation, nutrient availability or reduced body size. Decomposition was primarily driven by microbial activity. However, total decomposition by both microbes and macroinvertebrates increased with temperature in all but the largest ecosystems, where it decreased. Thus, warming decoupled aquatic and terrestrial ecosystems, by reducing the flux of aquatic resources to terrestrial ecosystems but variably enhancing or reducing terrestrial resource breakdown in aquatic ecosystems. In contrast with increased emergence observed in warmed temperate ecosystems, future climate change is likely to reduce connectivity between tropical terrestrial and aquatic habitats, potentially impacting consumers in both ecosystem types. As tropical ectotherms live closer to their thermal tolerance limits compared to temperate species, warming can disrupt cross-ecosystem dynamics in an interconnected tropical landscape and should be considered when investigating ecosystem-level consequences of climate change.
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Affiliation(s)
- Liam N Nash
- School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
| | - Pablo A P Antiqueira
- Departamento de Biologia Animal, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Gustavo Q Romero
- Departamento de Biologia Animal, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Paula M de Omena
- Instituto de Ciências Biológicas, Universidade Federal do Pará (UFPA), Belém, Brazil
| | - Pavel Kratina
- School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
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7
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Srivastava DS, Ware JL, Ngai JT, Starzomski BM, Amundrud SL. Habitat size thresholds for predators: Why damselflies only occur in large bromeliads. Biotropica 2020. [DOI: 10.1111/btp.12734] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Diane S. Srivastava
- Department of Zoology & Biodiversity Research Centre University of British Columbia Vancouver BC Canada
| | - Jessica L. Ware
- Department of Zoology & Biodiversity Research Centre University of British Columbia Vancouver BC Canada
| | - Jacqueline T. Ngai
- Department of Zoology & Biodiversity Research Centre University of British Columbia Vancouver BC Canada
| | - Brian M. Starzomski
- Department of Zoology & Biodiversity Research Centre University of British Columbia Vancouver BC Canada
| | - Sarah L. Amundrud
- Department of Zoology & Biodiversity Research Centre University of British Columbia Vancouver BC Canada
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8
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Venkateswaran V, Borges RM. Staying in the club: Exploring criteria governing metacommunity membership for obligate symbionts under host-symbiont feedback. J Theor Biol 2020; 510:110512. [PMID: 33035553 DOI: 10.1016/j.jtbi.2020.110512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 09/17/2020] [Accepted: 10/02/2020] [Indexed: 10/23/2022]
Abstract
Metacommunity membership is influenced by habitat availability and trophic requirements. However, for multitrophic horizontally transmitted symbiont communities that are closely associated with hosts, symbiont-host interactions may affect membership criteria in novel ways. For example, failure of beneficial services from symbionts could influence the host, and in turn, the entire community. Understanding such host-symbiont feedback effects on symbiont community membership, symbiont community structure, and function is important for understanding if host-symbiont communities are fundamentally different from more traditional ecological communities. We investigate the membership criteria for a multitrophic insect symbiont community that colonizes host inflorescences at specific developmental stages termed colonization windows. The inflorescences serve as microcosm habitats. Symbionts exhibit a range of interactions from mutualism to parasitism. Hosts exhibit feedback by aborting inflorescences not pollinated by mutualistic symbionts. Habitats are consequently lost for all other symbiont species in such host-derived organs whose development is mutualist-dependent. Using empirical measurements to characterize inflorescence development, we simulate symbiont dispersal colonization across hosts. We vary host densities and lengths of symbiont colonization windows, and track the persistence of each symbiont species in the metacommunity based on its trophic requirements and resource availability within the microcosm. Since the persistence of the microcosm habitat is dictated by pollination performed by the mutualist, the mutualist fared better than all other symbionts. The length of symbiont colonization windows was positively related with colonization success and symbiont persistence. The cumulative length of the colonization windows of prey dictated predator success; diet breadth or prey colonization success did not influence predator persistence. Predators also had a greater host-plant density requirement than prey for persistence in the community. These results offer valuable insights into host densities required for maintaining symbionts, and have implications for multitrophic symbiont community stability. Special constraints can govern symbiont community membership, function and structure and symbiont persistence when host-symbiont feedback impacts host microcosm development.
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Affiliation(s)
- Vignesh Venkateswaran
- Centre for Ecological Sciences, Indian Institute of Science, Bangalore 560012, India; Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, D-07745, Jena Germany.
| | - Renee M Borges
- Centre for Ecological Sciences, Indian Institute of Science, Bangalore 560012, India.
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9
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Hoi AG, Gilbert B, Mideo N. Deconstructing the Impact of Malaria Vector Diversity on Disease Risk. Am Nat 2020; 196:E61-E70. [PMID: 32813999 DOI: 10.1086/710005] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AbstractRecent years have seen significant progress in understanding the impact of host community assemblage on disease risk, yet diversity in disease vectors has rarely been investigated. Using published malaria and mosquito surveys from Kenya, we analyzed the relationship between malaria prevalence and multiple axes of mosquito diversity: abundance, species richness, and composition. We found a net amplification of malaria prevalence by vector species richness, a result of a strong direct positive association between richness and prevalence alongside a weak indirect negative association between the two, mediated through mosquito community composition. One plausible explanation of these patterns is species niche complementarity, whereby less competent vector species contribute to disease transmission by filling spatial or temporal gaps in transmission left by dominant vectors. A greater understanding of vector community assemblage and function, as well as any interactions between host and vector biodiversity, could offer insights to both fundamental and applied ecology.
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10
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Turner B, Trekels H, Vandromme M, Vanschoenwinkel B. Prey colonization in freshwater landscapes can be stimulated or inhibited by the proximity of remote predators. J Anim Ecol 2020; 89:1766-1774. [PMID: 32324914 DOI: 10.1111/1365-2656.13239] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 02/29/2020] [Indexed: 11/29/2022]
Abstract
Recent findings suggest that the colonization of habitat patches may be affected by the quality of surrounding patches. For instance, patches that lack predators may be avoided when located near others with predators, a pattern known as risk contagion. Alternatively, predator avoidance might also redirect dispersal towards nearby predator-free patches resulting in so-called habitat compression. However, it is largely unknown how predators continue to influence these habitat selection behaviours at increasing distances from outside of their own habitat patch. In addition, current information is derived from artificial mesocosm experiments, while support from natural ecosystems is lacking. This study used bromeliad landscapes as a natural model system to study how oviposition habitat selection of Diptera responds to the cues of a distant predator, the carnivorous elephant mosquito larva. We established landscapes containing predator-free bromeliad habitat patches placed at increasing distances from a predator-containing patch, along with replicate control landscapes. These patches were then left to be colonized by ovipositing bromeliad insects. We found that distance to predators modulates habitat selection decisions. Moreover, different dipteran families had different responses suggesting different habitat selection strategies. In some families, predator-free patches at certain distances from the predator patch were avoided, confirming risk contagion. In other families, these patches received higher numbers of colonists providing evidence of predator-induced habitat compression. We confirm that effects of predators in a natural ecosystem can extend beyond the patch in which the predator is present and that the presence or absence of remote predator effects on habitat selection depends on the distance to predators. The notion that perceived habitat quality can depend on conditions in neighbouring patches forces habitat selection studies to adopt a landscape perspective and account for the effects of both present and remote predators when explaining community assembly in metacommunities.
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Affiliation(s)
- Beth Turner
- Community Ecology Lab, Department of Biology, Vrije Universiteit Brussel (VUB), Brussels, Belgium.,Nature-based Solutions Initiative, Department of Zoology, University of Oxford, Oxford, UK
| | - Hendrik Trekels
- Community Ecology Lab, Department of Biology, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Mathil Vandromme
- Community Ecology Lab, Department of Biology, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Bram Vanschoenwinkel
- Community Ecology Lab, Department of Biology, Vrije Universiteit Brussel (VUB), Brussels, Belgium.,Centre for Environmental Management, University of the Free State, Bloemfontein, South Africa
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11
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Srivastava DS, Céréghino R, Trzcinski MK, MacDonald AAM, Marino NAC, Mercado DA, Leroy C, Corbara B, Romero GQ, Farjalla VF, Barberis IM, Dézerald O, Hammill E, Atwood TB, Piccoli GCO, Ospina-Bautista F, Carrias JF, Leal JS, Montero G, Antiqueira PAP, Freire R, Realpe E, Amundrud SL, de Omena PM, Campos ABA. Ecological response to altered rainfall differs across the Neotropics. Ecology 2020; 101:e02984. [PMID: 31958151 DOI: 10.1002/ecy.2984] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 10/17/2019] [Accepted: 11/12/2019] [Indexed: 11/07/2022]
Abstract
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.
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Affiliation(s)
- Diane S Srivastava
- Departmetn of Zoology and Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia, V6T 1Z4, Canada
| | - Régis Céréghino
- Ecolab, Laboratoire Ecologie Fonctionnelle et Environnement, CNRS, UPS, INPT, Université de Toulouse, Toulouse, 21941-901, France
| | - M Kurtis Trzcinski
- Ecolab, Laboratoire Ecologie Fonctionnelle et Environnement, CNRS, UPS, INPT, Université de Toulouse, Toulouse, 21941-901, France
| | - A Andrew M MacDonald
- Departmetn of Zoology and Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia, V6T 1Z4, Canada.,Ecolab, Laboratoire Ecologie Fonctionnelle et Environnement, CNRS, UPS, INPT, Université de Toulouse, Toulouse, 21941-901, France
| | - Nicholas A C Marino
- Departamento de Ecologia, Instituto de Biologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, 68020, Rio de Janeiro, RJ, Brazil.,Programa de Pós-Graduação em Ecologia, Universidade Federal do Rio de Janeiro, Ilha do Fundão, 68020, Rio de Janeiro, RJ, Brazil
| | - Dimaris Acosta Mercado
- Department of Biology, University of Puerto Rico Mayaguez Campus, Mayaguez, 00681, Puerto Rico, USA
| | - Céline Leroy
- AMAP, IRD, CIRAD, CNRS, INRA, Université Montpellier, Montpellier, CEDEX-5, 34095, France.,ECOFOG (AgroParisTech, CIRAD, CNRS, INRA, Université de Guyane, Université des Antilles), 97379, Kourou, France
| | - Bruno Corbara
- CNRS, LMGE (Laboratoire Microorganismes: Génome et Environnement), Université Clermont-Auvergne, F-63000, Clermont-Ferrand, France
| | - Gustavo Q Romero
- Laboratory of Multitrophic Interactions and Biodiversity, Department of Animal Biology, Institute of Biology, University of Campinas (UNICAMP), 13083-862, Campinas, SP, Brazil
| | - Vinicius F Farjalla
- Departamento de Ecologia, Instituto de Biologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, 68020, Rio de Janeiro, RJ, Brazil
| | - Ignacio M Barberis
- Facultad de Ciencias Agrarias, Instituto de Investigaciones en Ciencias Agrarias de Rosario, IICAR-CONICET-UNR, Universidad Nacional de Rosario, S2125ZAA, Zavalla, Argentina
| | - Olivier Dézerald
- ECOFOG (AgroParisTech, CIRAD, CNRS, INRA, Université de Guyane, Université des Antilles), 97379, Kourou, France.,Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC)-CNRS UMR 7360, Université de Lorraine, Campus Bridoux, 57070, Metz, France.,INRA, Agrocampus-Ouest, Ecology and Ecosystem Health, 65 rue de Saint-Brieuc, F-35042, Rennes, France
| | - Edd Hammill
- Departmetn of Zoology and Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia, V6T 1Z4, Canada.,Department of Watershed Sciences and the Ecology Center, Utah State University, Logan, 84322, USA
| | - Trisha B Atwood
- Department of Watershed Sciences and the Ecology Center, Utah State University, Logan, 84322, USA.,Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, British Columbia, V6T 1Z4, Canada
| | - Gustavo C O Piccoli
- Department of Zoology and Botany, University of São Paulo State (UNESP/IBILCE), 15054 - 000, São José do Rio Preto, SP, Brazil
| | - Fabiola Ospina-Bautista
- Department of Biological Sciences, Andes University, Bogotá, 111711, Colombia.,Departamento de Ciencias Biológicas, Universidad de Caldas, Caldas, 170001, Colombia
| | - Jean-François Carrias
- CNRS, LMGE (Laboratoire Microorganismes: Génome et Environnement), Université Clermont-Auvergne, F-63000, Clermont-Ferrand, France
| | - Juliana S Leal
- Departamento de Ecologia, Instituto de Biologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, 68020, Rio de Janeiro, RJ, Brazil
| | - Guillermo Montero
- Facultad de Ciencias Agrarias, Instituto de Investigaciones en Ciencias Agrarias de Rosario, IICAR-CONICET-UNR, Universidad Nacional de Rosario, S2125ZAA, Zavalla, Argentina
| | - Pablo A P Antiqueira
- Laboratory of Multitrophic Interactions and Biodiversity, Department of Animal Biology, Institute of Biology, University of Campinas (UNICAMP), 13083-862, Campinas, SP, Brazil
| | - Rodrigo Freire
- Facultad de Ciencias Agrarias, Instituto de Investigaciones en Ciencias Agrarias de Rosario, IICAR-CONICET-UNR, Universidad Nacional de Rosario, S2125ZAA, Zavalla, Argentina
| | - Emilio Realpe
- Department of Biological Sciences, Andes University, Bogotá, 111711, Colombia
| | - Sarah L Amundrud
- Departmetn of Zoology and Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia, V6T 1Z4, Canada
| | - Paula M de Omena
- Laboratory of Multitrophic Interactions and Biodiversity, Department of Animal Biology, Institute of Biology, University of Campinas (UNICAMP), 13083-862, Campinas, SP, Brazil
| | - Alice B A Campos
- Departamento de Ecologia, Instituto de Biologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, 68020, Rio de Janeiro, RJ, Brazil
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12
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Consumptive effects and mismatch in predator-prey turnover rates cause inversion of biomass pyramids. Oecologia 2019; 190:159-168. [PMID: 30923907 DOI: 10.1007/s00442-019-04394-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 03/25/2019] [Indexed: 12/19/2022]
Abstract
The mismatch between the turnover rates of predators and prey is one of the oldest explanations for the existence of inverted trophic pyramids. To date, the hypotheses regarding trophic pyramids have all been based on consumptive trophic links between predators and prey, and the relative contribution of non-consumptive effects is still unknown. In this study, we investigated if the inversion of pyramids in bromeliad ecosystems is driven by (i) a rapid colonization of organisms having short cohort interval production (CPI), and (ii) the prevalence of consumptive or non-consumptive effects of top predators. We used a manipulative experiment to investigate the patterns of prey colonization and to partition the net effects of the dominant predator (damselfly larvae) on biomass pyramids into consumptive (uncaged damselfly larvae) and non-consumptive effects (caged damselfly larvae). Consumptive effects of damselflies strengthened the inversion of trophic pyramids. Non-consumptive effects, however, did not affect the shape of biomass pyramids. Instead, the rapid colonization of organisms with predominantly short CPI sustained the large biomass of top predators found in natural bromeliad ecosystems. Prey colonized bromeliads rapidly, but this high production was never visible as standing stock because damselflies reduce prey densities by more than a magnitude through direct consumption. Our study adds to the growing evidence that there are a variety of possible ways that biomass can be trophically structured. Moreover, we suggest that the strength of biomass pyramids inversion may change with the time of ecological succession as prey communities become more equitable.
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13
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Guzman LM, Vanschoenwinkel B, Farjalla VF, Poon A, Srivastava DS. A precipitation gradient drives change in macroinvertebrate composition and interactions within bromeliads. PLoS One 2018; 13:e0200179. [PMID: 30485263 PMCID: PMC6261388 DOI: 10.1371/journal.pone.0200179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 10/18/2018] [Indexed: 11/19/2022] Open
Abstract
Ecological communities change across spatial and environmental gradients due to (i) changes in species composition, (ii) changes in the frequency or strength of interactions or (iii) changes in the presence of the interactions. Here we use the communities of aquatic invertebrates inhabiting clusters of bromeliad phytotelms along the Brazilian coast as a model system for examining variation in multi-trophic communities. We first document the variation in the species pools of sites across a geographical climate gradient. Using the same sites, we also explored the geographic variation in species interaction strength using a Markov network approach. We found that community composition differed along a gradient of water volume within bromeliads due to the spatial turnover of some species. From the Markov network analysis, we found that the interactions of certain predators differed due to differences in bromeliad water volume. Overall, this study illustrates how a multi-trophic community can change across an environmental gradient through changes in both species and their interactions.
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Affiliation(s)
- Laura Melissa Guzman
- Department of Zoology, University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Vinicius F. Farjalla
- Department of Ecology, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Anita Poon
- Department of Zoology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Diane S. Srivastava
- Department of Zoology, University of British Columbia, Vancouver, British Columbia, Canada
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14
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Antiqueira PAP, Petchey OL, Dos Santos VP, de Oliveira VM, Romero GQ. Environmental change and predator diversity drive alpha and beta diversity in freshwater macro and microorganisms. GLOBAL CHANGE BIOLOGY 2018; 24:3715-3728. [PMID: 29772087 DOI: 10.1111/gcb.14314] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 03/23/2018] [Accepted: 04/28/2018] [Indexed: 06/08/2023]
Abstract
Global biodiversity is eroding due to anthropogenic causes, such as climate change, habitat loss, and trophic simplification of biological communities. Most studies address only isolated causes within a single group of organisms; however, biological groups of different trophic levels may respond in particular ways to different environmental impacts. Our study used natural microcosms to investigate the predicted individual and interactive effects of warming, changes in top predator diversity, and habitat size on the alpha and beta diversity of macrofauna, microfauna, and bacteria. Alpha diversity (i.e., richness within each bromeliad) generally explained a larger proportion of the gamma diversity (partitioned in alpha and beta diversity). Overall, dissimilarity between communities occurred due to species turnover and not species loss (nestedness). Nevertheless, the three biological groups responded differently to each environmental stressor. Microfauna were the most sensitive group, with alpha and beta diversity being affected by environmental changes (warming and habitat size) and trophic structure (diversity of top predators). Macrofauna alpha and beta diversity was sensitive to changes in predator diversity and habitat size, but not warming. In contrast, the bacterial community was not influenced by the treatments. The community of each biological group was not mutually concordant with the environmental and trophic changes. Our results demonstrate that distinct anthropogenic impacts differentially affect the components of macro and microorganism diversity through direct and indirect effects (i.e., bottom-up and top-down effects). Therefore, a multitrophic and multispecies approach is necessary to assess the effects of different anthropogenic impacts on biodiversity.
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Affiliation(s)
- Pablo Augusto P Antiqueira
- Programa de Pós-Graduação em Ecologia, Instituto de Biologia (IB), Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
- Laboratory of Multitrophic Interactions and Biodiversity, Institute of Biology, University of Campinas, Campinas, SP, Brazil
| | - Owen L Petchey
- Department for Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - Viviane Piccin Dos Santos
- Research Center for Chemistry, Biology and Agriculture (CPQBA), University of Campinas, Paulínia, SP, Brazil
| | - Valéria Maia de Oliveira
- Research Center for Chemistry, Biology and Agriculture (CPQBA), University of Campinas, Paulínia, SP, Brazil
| | - Gustavo Quevedo Romero
- Laboratory of Multitrophic Interactions and Biodiversity, Institute of Biology, University of Campinas, Campinas, SP, Brazil
- Departamento de Biologia Animal, Instituto de Biologia (IB), Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
- Brazilian Research Network on Climate Change (Rede Clima), São Paulo, Brazil
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15
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Dejean A, Compin A, Leponce M, Azémar F, Bonhomme C, Talaga S, Pelozuelo L, Hénaut Y, Corbara B. Ants impact the composition of the aquatic macroinvertebrate communities of a myrmecophytic tank bromeliad. C R Biol 2018; 341:200-207. [PMID: 29567468 DOI: 10.1016/j.crvi.2018.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 01/13/2018] [Accepted: 02/16/2018] [Indexed: 10/17/2022]
Abstract
In an inundated Mexican forest, 89 out of 92 myrmecophytic tank bromeliads (Aechmea bracteata) housed an associated ant colony: 13 sheltered Azteca serica, 43 Dolichoderus bispinosus, and 33 Neoponera villosa. Ant presence has a positive impact on the diversity of the aquatic macroinvertebrate communities (n=30 bromeliads studied). A Principal Component Analysis (PCA) showed that the presence and the species of ant are not correlated to bromeliad size, quantity of water, number of wells, filtered organic matter or incident radiation. The PCA and a generalized linear model showed that the presence of Azteca serica differed from the presence of the other two ant species or no ants in its effects on the aquatic invertebrate community (more predators). Therefore, both ant presence and species of ant affect the composition of the aquatic macroinvertebrate communities in the tanks of A. bracteata, likely due to ant deposition of feces and other waste in these tanks.
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Affiliation(s)
- Alain Dejean
- CNRS, UMR EcoFoG, AgroParisTech, Cirad, INRA, université des Antilles, université de Guyane, 97310 Kourou, France; Ecolab, université de Toulouse, CNRS, INPT, UPS, 31062 Toulouse, France.
| | - Arthur Compin
- Ecolab, université de Toulouse, CNRS, INPT, UPS, 31062 Toulouse, France
| | - Maurice Leponce
- Aquatic and Terrestrial Ecology, Royal Belgian Institute of Natural Sciences, 29, rue Vautier, 1000 Brussels, Belgium
| | - Frédéric Azémar
- Ecolab, université de Toulouse, CNRS, INPT, UPS, 31062 Toulouse, France
| | - Camille Bonhomme
- Ecolab, université de Toulouse, CNRS, INPT, UPS, 31062 Toulouse, France
| | - Stanislas Talaga
- Unité d'entomologie médicale, Institut Pasteur de la Guyane, 23, avenue Pasteur, BP 6010, 97306 Cayenne cedex, France
| | - Laurent Pelozuelo
- Ecolab, université de Toulouse, CNRS, INPT, UPS, 31062 Toulouse, France
| | - Yann Hénaut
- El Colegio de la Frontera Sur, Departamento de Conservaciòn de la Biodiversidad, Quintana Roo, Chetumal, Mexico
| | - Bruno Corbara
- Université Clermont Auvergne, CNRS, LMGE, 63000 Clermont-Ferrand, France
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16
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Antiqueira PAP, Petchey OL, Romero GQ. Warming and top predator loss drive ecosystem multifunctionality. Ecol Lett 2017; 21:72-82. [PMID: 29098798 DOI: 10.1111/ele.12873] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 05/17/2017] [Accepted: 10/04/2017] [Indexed: 11/29/2022]
Abstract
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.
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Affiliation(s)
- Pablo Augusto P Antiqueira
- Programa de Pós-Graduação em Ecologia, Instituto de Biologia (IB), Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Owen L Petchey
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland.,URPP Global Change and Biodiversity, University of Zurich, Zurich, Switzerland
| | - Gustavo Quevedo Romero
- Departamento de Biologia Animal, Instituto de Biologia (IB), Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil.,Brazilian Research Network on Climate Change (Rede Clima)
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17
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Start D, Gilbert B. Host-parasitoid evolution in a metacommunity. Proc Biol Sci 2017; 283:rspb.2016.0477. [PMID: 27194705 DOI: 10.1098/rspb.2016.0477] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 04/21/2016] [Indexed: 11/12/2022] Open
Abstract
Patch size and isolation are predicted to alter both species diversity and evolution; yet, there are few empirical examples of eco-evolutionary feedback in metacommunities. We tested three hypotheses about eco-evolutionary feedback in a gall-forming fly, Eurosta solidaginis and two of its natural enemies that select for opposite traits: (i) specialization and poor dispersal ability constrain a subset of natural enemies from occupying small and isolated patches, (ii) this constraint alters selection on the gall fly, causing phenotypic shifts towards traits resistant to generalist and dispersive enemies in small and isolated patches, and (iii) reduced dispersal evolves in small, isolated populations. We sampled patches in a natural metacommunity and found support for all hypotheses; Eurosta's specialist wasp parasitoid attacked fewer galls in small and isolated patches, generating a selection gradient that favoured small galls resistant to predation by a dispersive and generalist bird predator. Phenotype distributions matched this selection gradient, and these phenotypic differences were maintained in a common garden experiment. Finally, we found lower dispersal abilities in small and isolated patches, a phenotypic shift that aids in the maintenance of local adaptation. We suggest that the trophic rank and the species traits of consumers are central to evolution in metacommunities.
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Affiliation(s)
- Denon Start
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, Canada M5S 3B3
| | - Benjamin Gilbert
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, Canada M5S 3B3
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18
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Affiliation(s)
- Lucy Genua
- Dept of Ecology and Evolutionary Biology, Univ. of Toronto; Toronto ON, M5S 3B3 Canada
| | - Denon Start
- Dept of Ecology and Evolutionary Biology, Univ. of Toronto; Toronto ON, M5S 3B3 Canada
| | - Benjamin Gilbert
- Dept of Ecology and Evolutionary Biology, Univ. of Toronto; Toronto ON, M5S 3B3 Canada
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19
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Romero GQ, Piccoli GCO, de Omena PM, Gonçalves-Souza T. Food web structure shaped by habitat size and climate across a latitudinal gradient. Ecology 2016; 97:2705-2715. [DOI: 10.1002/ecy.1496] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 05/09/2016] [Accepted: 05/31/2016] [Indexed: 12/24/2022]
Affiliation(s)
- Gustavo Q. Romero
- Laboratory of Multitrophic Interactions and Biodiversity (LIMBIO); Department of Animal Biology; Institute of Biology; University of Campinas (UNICAMP); CP 6109 Campinas SP 13083-970 Brazil
- Brazilian Research Network on Climate Change (Rede Clima)
| | - Gustavo C. O. Piccoli
- Laboratory of Multitrophic Interactions and Biodiversity (LIMBIO); Department of Animal Biology; Institute of Biology; University of Campinas (UNICAMP); CP 6109 Campinas SP 13083-970 Brazil
| | - Paula M. de Omena
- Laboratory of Multitrophic Interactions and Biodiversity (LIMBIO); Department of Animal Biology; Institute of Biology; University of Campinas (UNICAMP); CP 6109 Campinas SP 13083-970 Brazil
| | - Thiago Gonçalves-Souza
- Laboratory of Phylogenetic and Functional Ecology (ECOFFUN); Department of Biology; Area of Ecology; Federal Rural University of Pernambuco (UFRPE); R. Dom Manoel de Medeiros s/n Recife PE 52171-900 Brazil
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20
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Pires APF, Marino NAC, Srivastava DS, Farjalla VF. Predicted rainfall changes disrupt trophic interactions in a tropical aquatic ecosystem. Ecology 2016; 97:2750-2759. [PMID: 27859129 DOI: 10.1002/ecy.1501] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 05/06/2016] [Accepted: 05/25/2016] [Indexed: 01/17/2023]
Abstract
Changes in the distribution of rainfall and the occurrence of extreme rain events will alter the size and persistence of aquatic ecosystems. Such alterations may affect the structure of local aquatic communities in terms of species composition, and by altering species interactions. In many aquatic ecosystems, leaf litter sustains detrital food webs and could regulate the responses of communities to changes in rainfall. Few empirical studies have focused on how rainfall changes will affect aquatic communities and none have evaluated if basal resource diversity can increase resistance to such rainfall effects. In this study, we used water-holding terrestrial bromeliads, a tropical aquatic ecosystem, to test how predicted rainfall changes and litter diversity may affect community composition and trophic interactions. We used structural equation modeling to investigate the combined effects of rainfall changes and litter diversity on trophic interactions. We demonstrated that changes in rainfall disrupted trophic relationships, even though there were only minor direct effects on species abundance, richness, and community composition. Litter diversity was not able to reduce the impact of changes in rainfall on trophic interactions. We suggest that changes in rainfall can alter the way in which species interact with each other, decreasing the linkages among trophic groups. Such reductions in biotic interactions under climate change will have critical consequences for the functioning of tropical aquatic ecosystems.
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Affiliation(s)
- Aliny P F Pires
- Departamento de Ecologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Nicholas A C Marino
- Departamento de Ecologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Diane S Srivastava
- Department of Zoology, Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Vinicius F Farjalla
- Departamento de Ecologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Laboratorio Internacional en Cambio Global - LINCGlobal
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21
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Amundrud SL, Srivastava DS. Trophic interactions determine the effects of drought on an aquatic ecosystem. Ecology 2016; 97:1475-83. [PMID: 27459778 DOI: 10.1890/15-1638.1] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Species interactions can be important mediators of community and ecosystem responses to environmental stressors. However, we still lack a mechanistic understanding of the indirect ecological effects of stress that arise via altered species interactions. To understand how species interactions will be altered by environmental stressors, we need to know if the species that are vulnerable to such stressors also have large impacts on the ecosystem. As predators often exhibit certain traits that are linked to a high vulnerability to stress (e.g., large body size, long generation time), as well as having large effects on communities (e.g., top-down trophic effects), predators may be particularly likely to mediate ecological effects of environmental stress. Other functional groups, like facilitators, are known to have large impacts on communities, but their vulnerability to perturbations remains undocumented. Here, we use aquatic insect communities in bromeliads to examine the indirect effects of an important stressor (drought) on community and ecosystem responses. In a microcosm experiment, we manipulated predatory and facilitative taxa under a range of experimental droughts, and quantified effects on community structure and ecosystem function. Drought, by adversely affecting the top predator, had indirect cascading effects on the entire food web, altering community composition and decomposition. We identified the likely pathway of how drought cascaded through the food web from the top-down as drought -->predator --> shredder --> decomposition. This stress-induced cascade depended on predators exhibiting both a strong vulnerability to drought and large impacts on prey (especially shredders), as well as shredders exhibiting high functional importance as decomposers.
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22
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Petermann JS, Farjalla VF, Jocque M, Kratina P, MacDonald AAM, Marino NAC, De Omena PM, Piccoli GCO, Richardson BA, Richardson MJ, Romero GQ, Videla M, Srivastava DS. Dominant predators mediate the impact of habitat size on trophic structure in bromeliad invertebrate communities. Ecology 2015; 96:428-39. [PMID: 26240864 DOI: 10.1890/14-0304.1] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Local habitat size has been shown to influence colonization and extinction processes of species in patchy environments. However, species differ in body size, mobility, and trophic level, and may not respond in the same way to habitat size. Thus far, we have a limited understanding of how habitat size influences the structure of multitrophic communities and to what extent the effects may be generalizable over a broad geographic range. Here, we used water-filled bromeliads of different sizes as a natural model system to examine the effects of habitat size on the trophic structure of their inhabiting invertebrate communities. We collected composition and biomass data from 651 bromeliad communities from eight sites across Central and South America differing in environmental conditions, species pools, and the presence of large-bodied odonate predators. We found that trophic structure in the communities changed dramatically with changes in habitat (bromeliad) size. Detritivore : resource ratios showed a consistent negative relationship with habitat size across sites. In contrast, changes in predator: detritivore (prey) ratios depended on the presence of odonates as dominant predators in the regional pool. At sites without odonates, predator: detritivore biomass ratios decreased with increasing habitat size. At sites with odonates, we found odonates to be more frequently present in large than in small bromeliads, and predator: detritivore biomass ratios increased with increasing habitat size to the point where some trophic pyramids became inverted. Our results show that the distribution of biomass amongst food-web levels depends strongly on habitat size, largely irrespective of geographic differences in environmental conditions or detritivore species compositions. However, the presence of large-bodied predators in the regional species pool may fundamentally alter this relationship between habitat size and trophic structure. We conclude that taking into account the response and multitrophic effects of dominant, mobile species may be critical when predicting changes in community structure along a habitat-size gradient.
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23
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Talaga S, Dézerald O, Carteron A, Petitclerc F, Leroy C, Céréghino R, Dejean A. Tank bromeliads as natural microcosms: a facultative association with ants influences the aquatic invertebrate community structure. C R Biol 2015; 338:696-700. [PMID: 26302833 DOI: 10.1016/j.crvi.2015.05.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 05/20/2015] [Accepted: 05/21/2015] [Indexed: 10/23/2022]
Abstract
Many tank bromeliads have facultative relationships with ants as is the case in French Guiana between Aechmea aquilega (Salib.) Griseb. and the trap-jaw ant, Odontomachus haematodus Linnaeus. Using a redundancy analysis, we determined that the presence of O. haematodus colonies is accompanied by a greater quantity of fine particulate organic matter in the water likely due to their wastes. This increase in nutrient availability is significantly correlated with an increase in the abundance of some detritivorous taxa, suggesting a positive bottom-up influence on the aquatic macroinvertebrate communities living in the A. aquilega wells. On the other hand, the abundance of top predators is negatively affected by a lower number of available wells due to ant constructions for nesting, releasing a top-down pressure that could also favor lower trophic levels.
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Affiliation(s)
- Stanislas Talaga
- Université Antilles-Guyane, Écologie des forêts de Guyane (UMR-CNRS 8172), campus agronomique, BP 316, 97379 Kourou cedex, France; CNRS, Écologie des forêts de Guyane (UMR-CNRS 8172), campus agronomique, BP 316, 97379 Kourou cedex, France.
| | - Olivier Dézerald
- Université Antilles-Guyane, Écologie des forêts de Guyane (UMR-CNRS 8172), campus agronomique, BP 316, 97379 Kourou cedex, France; CNRS, Écologie des forêts de Guyane (UMR-CNRS 8172), campus agronomique, BP 316, 97379 Kourou cedex, France
| | - Alexis Carteron
- Université de Toulouse, UPS, INP, Ecolab, 118, route de Narbonne, 31062 Toulouse, France
| | - Frédéric Petitclerc
- CNRS, Écologie des forêts de Guyane (UMR-CNRS 8172), campus agronomique, BP 316, 97379 Kourou cedex, France
| | - Céline Leroy
- IRD, UMR AMAP, boulevard de la Lironde, TA A-51/PS2, 34398 Montpellier cedex 5, France
| | - Régis Céréghino
- Université de Toulouse, UPS, INP, Ecolab, 118, route de Narbonne, 31062 Toulouse, France; CNRS, Ecolab (UMR-CNRS 5245), 118, route de Narbonne, 31062 Toulouse, France
| | - Alain Dejean
- CNRS, Écologie des forêts de Guyane (UMR-CNRS 8172), campus agronomique, BP 316, 97379 Kourou cedex, France; Université de Toulouse, UPS, INP, Ecolab, 118, route de Narbonne, 31062 Toulouse, France; CNRS, Ecolab (UMR-CNRS 5245), 118, route de Narbonne, 31062 Toulouse, France
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Laguna M, Abramson G, Kuperman M, Lanata J, Monjeau J. Mathematical model of livestock and wildlife: Predation and competition under environmental disturbances. Ecol Modell 2015. [DOI: 10.1016/j.ecolmodel.2015.04.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Amundrud SL, Srivastava DS. Drought sensitivity predicts habitat size sensitivity in an aquatic ecosystem. Ecology 2015; 96:1957-65. [DOI: 10.1890/14-1828.1] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Richardson MJ, Richardson BA, Srivastava DS. The Stability of Invertebrate Communities in Bromeliad Phytotelmata in a Rain Forest Subject to Hurricanes. Biotropica 2015. [DOI: 10.1111/btp.12204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael J. Richardson
- 165 Braid Road Edinburgh EH10 6JE U.K
- Luquillo LTER; Institute for Tropical Ecosystem Studies; College of Natural Sciences; University of Puerto Rico at Rio Piedras; P.O. Box 70377 San Juan Puerto Rico 00936-8377 U.S.A
| | - Barbara A. Richardson
- 165 Braid Road Edinburgh EH10 6JE U.K
- Luquillo LTER; Institute for Tropical Ecosystem Studies; College of Natural Sciences; University of Puerto Rico at Rio Piedras; P.O. Box 70377 San Juan Puerto Rico 00936-8377 U.S.A
| | - Diane S. Srivastava
- Department of Zoology and Biodiversity Research Centre; University of British Columbia; 6270 University Blvd Vancouver BC V6T 1Z4 Canada
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Goffredi SK, Jang GE, Haroon MF. Transcriptomics in the tropics: Total RNA-based profiling of Costa Rican bromeliad-associated communities. Comput Struct Biotechnol J 2014; 13:18-23. [PMID: 25755850 PMCID: PMC4352299 DOI: 10.1016/j.csbj.2014.12.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 12/01/2014] [Accepted: 12/03/2014] [Indexed: 10/26/2022] Open
Abstract
RNA-Seq was used to examine the microbial, eukaryotic, and viral communities in water catchments ('tanks') formed by tropical bromeliads from Costa Rica. In total, transcripts with taxonomic affiliation to a wide array of bacteria, archaea, and eukaryotes, were observed, as well as RNA-viruses that appeared related to the specific presence of eukaryotes. Bacteria from 25 phyla appeared to comprise the majority of transcripts in one tank (Wg24), compared to only 14 phyla in the other (Wg25). Conversely, eukaryotes from only 16 classes comprised the majority of transcripts in Wg24, compared to 24 classes in the Wg25, revealing a greater eukaryote diversity in the latter. Given that these bromeliads had tanks of similar size (i.e. vertical oxygen gradient), and were neighboring with presumed similar light regime and acquisition of leaf litter through-fall, it is possible that pH was the factor governing these differences in bacterial and eukaryotic communities (Wg24 had a tank pH of 3.6 and Wg25 had a tank pH of 6.2). Archaeal diversity was similar in both tanks, represented by 7 orders, with the exception of Methanocellales transcripts uniquely recovered from Wg25. Based on measures of FPKG (fragments mapped per kilobase of gene length), genes involved in methanogenesis, in addition to a spirochaete flagellin gene, were among those most highly expressed in Wg25. Conversely, aldehyde dehydrogenase and monosaccharide-binding protein were among genes most highly expressed in Wg24. The ability to observe specific presence of insect, plant, and fungi-associated RNA-viruses was unexpected. As with other techniques, there are inherent biases in the use of RNA-Seq, however, these data suggest the possibility of understanding the entire community, including ecological interactions, via simultaneous analysis of microbial, eukaryotic, and viral transcripts.
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Larval dispersal drives trophic structure across Pacific coral reefs. Nat Commun 2014; 5:5575. [DOI: 10.1038/ncomms6575] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Accepted: 10/16/2014] [Indexed: 11/09/2022] Open
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LeCraw RM, Srivastava DS, Romero GQ. Metacommunity size influences aquatic community composition in a natural mesocosm landscape. OIKOS 2014. [DOI: 10.1111/oik.01253] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Robin M. LeCraw
- Biodiversity Research Centre, Dept of Zoology; Univ. of British Columbia; 6270 University Blvd. Vancouver BC Canada
| | - Diane S. Srivastava
- Biodiversity Research Centre, Dept of Zoology; Univ. of British Columbia; 6270 University Blvd. Vancouver BC Canada
| | - Gustavo Q. Romero
- Depto de Biologia Animal; Univ. Estadual de Campinas (UNICAMP); CEP 13083-970 Campinas São Paulo Brazil
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Carrias JF, Brouard O, Leroy C, Céréghino R, Pélozuelo L, Dejean A, Corbara B. An ant–plant mutualism induces shifts in the protist community structure of a tank-bromeliad. Basic Appl Ecol 2012. [DOI: 10.1016/j.baae.2012.10.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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32
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Zhang H, Gilbert B, Zhang X, Zhou S. Community assembly along a successional gradient in sub-alpine meadows of the Qinghai-Tibetan Plateau, China. OIKOS 2012. [DOI: 10.1111/j.1600-0706.2012.20828.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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van Gils JA, van der Geest M, Jansen EJ, Govers LL, de Fouw J, Piersma T. Trophic cascade induced by molluscivore predator alters pore-water biogeochemistry via competitive release of prey. Ecology 2012; 93:1143-52. [DOI: 10.1890/11-1282.1] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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GONÇALVES-SOUZA THIAGO, ALMEIDA-NETO MÁRIO, ROMERO GUSTAVOQ. Bromeliad architectural complexity and vertical distribution predict spider abundance and richness. AUSTRAL ECOL 2010. [DOI: 10.1111/j.1442-9993.2010.02177.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Céréghino R, Leroy C, Dejean A, Corbara B. Ants mediate the structure of phytotelm communities in an ant-garden bromeliad. Ecology 2010; 91:1549-56. [PMID: 20503886 DOI: 10.1890/09-1534.1] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The main theories explaining the biological diversity of rain forests often confer a limited understanding of the contribution of interspecific interactions to the observed patterns. We show how two-species mutualisms can affect much larger segments of the invertebrate community in tropical rain forests. Aechmea mertensii (Bromeliaceae) is both a phytotelm (plant-held water) and an ant-garden epiphyte. We studied the influence of its associated ant species (Pachycondyla goeldii and Camponotus femoratus) on the physical characteristics of the plants, and, subsequently, on the diversity of the invertebrate communities that inhabit their tanks. As dispersal agents for the bromeliads, P. goeldii and C. femoratus influence the shape and size of the bromeliad by determining the location of the seedling, from exposed to partially shaded areas. By coexisting on a local scale, the two ant species generate a gradient of habitat conditions in terms of available resources (space and food) for aquatic invertebrates, the diversity of the invertebrate communities increasing with greater volumes of water and fine detritus. Two-species mutualisms are widespread in nature, but their influence on the diversity of entire communities remains largely unexplored. Because macroinvertebrates constitute an important part of animal production in all ecosystem types, further investigations should address the functional implications of such indirect effects.
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Affiliation(s)
- Régis Céréghino
- Université de Toulouse, UPS, INPT, EcoLab, 118 Route de Narbonne, 31062 Toulouse, France.
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Stochastic ecological network occupancy (SENO) models: a new tool for modeling ecological networks across spatial scales. THEOR ECOL-NETH 2010. [DOI: 10.1007/s12080-010-0082-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Crutsinger GM, Cadotte MW, Sanders NJ. Plant genetics shapes inquiline community structure across spatial scales. Ecol Lett 2009; 12:285-92. [DOI: 10.1111/j.1461-0248.2009.01288.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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