What happens when thermally vulnerable species are removed from food web networks?

Abstract

Event Abstract Back to Event What happens when thermally vulnerable species are removed from food web networks? Catarina Vinagre1*, Vanessa Mendonça1, Carolina Madeira1, Marta Dias1, Ana Silva2 and Augusto A. Flores3 1 Universidade de Lisboa, MARE – Marine and Environmental Sciences Centre, Faculdade de Ciências, Campo Grande, 1749-016 Lisboa, Portugal , Portugal 2 Instituto Superior Técnico, Universidade de Lisboa, CERIS, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais 1, 1049-001-Lisboa, Portugal, Portugal 3 Universidade de São Paulo, Centro de Biologia Marinha, Universidade de São Paulo, Rod. Manoel Hipólito do Rego, km 131.5, São Sebastião, SP, Brazil, Brazil Intertidal rock pool environments harbor particularly high biodiversity and constitute important refuges for early stages of many marine organisms. These environments have little thermal inertia and can attain temperatures that are higher than the maximum critical temperatures (CTMax) of some of its’ species. In this study tropical and temperate rock pools were used as mesocosms to understand what happens to the network structure of food webs when thermally vulnerable species are removed. Highly defined food web networks were assembled for rock pools in Brazil and in Portugal, where the CTMax of its more common species was already tested. Species were sequentially removed from the food web based on their thermal vulnerability. Structural robustness was defined as the fraction of species that had to be removed in order to result in the loss of ≥50% of the species in the original web (i.e. primary species removals plus secondary extinctions). Tropical and temperate food webs revealed similar robustness, however tropical food webs presented alterations in more food web properties. Acknowledgements Thanks are due to the institutions and staff that hosted this work: CEBIMAR-USP and Instituto Oceanográfico-USP. This study had the support of the Portuguese Foundation for Science and Technology through the WarmingWebs project, PTDC/MAR-EST/2141/2012, the “Investigador FCT” position granted to C. Vinagre and the strategic project UID/MAR/04292/2013 granted to MARE. The authors are grateful to Jennifer Dunne (Santa Fe Institute) for guidance in the initial steps of this idea. Keywords: Food Web Dynamics, Network analysis, Climate Change, Rocky intertidal, predator-prey interactions Conference: IMMR'18 | International Meeting on Marine Research 2018, Peniche, Portugal, 5 Jul - 6 Jul, 2018. Presentation Type: Poster Presentation Topic: Biodiversity, Conservation and Coastal Management Citation: Vinagre C, Mendonça V, Madeira C, Dias M, Silva A and Flores AA (2019). What happens when thermally vulnerable species are removed from food web networks?. Front. Mar. Sci. Conference Abstract: IMMR'18 | International Meeting on Marine Research 2018. doi: 10.3389/conf.FMARS.2018.06.00042 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 24 Apr 2018; Published Online: 07 Jan 2019. * Correspondence: Dr. Catarina Vinagre, Universidade de Lisboa, MARE – Marine and Environmental Sciences Centre, Faculdade de Ciências, Campo Grande, 1749-016 Lisboa, Portugal, Lisbon, Portugal, cmvinagre@ualg.pt Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Catarina Vinagre Vanessa Mendonça Carolina Madeira Marta Dias Ana Silva Augusto A Flores Google Catarina Vinagre Vanessa Mendonça Carolina Madeira Marta Dias Ana Silva Augusto A Flores Google Scholar Catarina Vinagre Vanessa Mendonça Carolina Madeira Marta Dias Ana Silva Augusto A Flores PubMed Catarina Vinagre Vanessa Mendonça Carolina Madeira Marta Dias Ana Silva Augusto A Flores Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.