caa a22 4500 445893591 CHVBK 20180317145624.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s10750-010-0523-1 doi (NATIONALLICENCE)springer-10.1007/s10750-010-0523-1 Response of a native, herbivorous snail to the introduced seaweed Sargassum muticum [Elektronische Daten] [Kevin Britton-Simmons, Benjamin Pister, Iñigo Sánchez, Daniel Okamoto] The role of native consumers in mediating biological invasions is poorly understood. In theory, there are reasons to expect both strong and weak effects of native consumers on non-native species. However, non-native ranges may include multiple regions or even continents, each with its own suite of consumers and invader-consumer interactions may play out differently in different places and times. In this Washington State (USA) study we found that the common herbivorous snail Lacuna vincta was 2-9times more abundant on the non-native seaweed Sargassum muticum, compared to native kelps. Choice feeding trials with fresh tissue and artificial foods both suggest that S. muticum is a preferred food for Lacuna vincta. Lab experiments indicated that L. vincta did not experience diminished predation by two common predators on Sargassum muticum compared to native kelp hosts. Our results suggest that Sargassum experiences considerable herbivory by Lacuna vincta in our study region, a conclusion that is consistent with previous work and our own field observations. In our system, L. vincta and S. muticum have been coexisting in the same habitats for at least 50 years and available data suggest that it acquired a preference for S. muticum more than 30 years after the initial invasion. Comparison of our results to recent work on Sargassum-herbivore interactions in Europe suggests that the response of native consumer communities to S. muticum varies both within and among regions. Geographic and temporal variation in the response of native consumers are likely to be hallmarks of many large-scale invasions. Springer Science+Business Media B.V., 2010 Enemy release nationallicence Biotic resistance nationallicence Sargassum muticum nationallicence Lacuna vincta nationallicence Biological invasion nationallicence Britton-Simmons Kevin Department of Ecology and Evolution, The University of Chicago, 1101 E. 57th Street, 60637, Chicago, IL, USA aut Pister Benjamin Department of Ecology and Evolution, The University of Chicago, 1101 E. 57th Street, 60637, Chicago, IL, USA aut Sánchez Iñigo Department of Biología de Organismos y Sistemas, The University of Oviedo, Área de Ecología, C/Catedrático Rodrigo Uria s/n, 33071, Oviedo, Spain aut Okamoto Daniel Friday Harbor Laboratories, University of Washington, 620 University Road, 98250, Friday Harbor, WA, USA aut Hydrobiologia Springer Netherlands 661/1(2011-02-01), 187-196 0018-8158 661:1<187 2011 661 10750 https://doi.org/10.1007/s10750-010-0523-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-010-0523-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Britton-Simmons Kevin Department of Ecology and Evolution, The University of Chicago, 1101 E. 57th Street, 60637, Chicago, IL, USA aut NATIONALLICENCE 700 1- Pister Benjamin Department of Ecology and Evolution, The University of Chicago, 1101 E. 57th Street, 60637, Chicago, IL, USA aut NATIONALLICENCE 700 1- Sánchez Iñigo Department of Biología de Organismos y Sistemas, The University of Oviedo, Área de Ecología, C/Catedrático Rodrigo Uria s/n, 33071, Oviedo, Spain aut NATIONALLICENCE 700 1- Okamoto Daniel Friday Harbor Laboratories, University of Washington, 620 University Road, 98250, Friday Harbor, WA, USA aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 661/1(2011-02-01), 187-196 0018-8158 661:1<187 2011 661 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer