caa a22 4500 477090923 CHVBK 20180405111514.0 cr unu---uuuuu 170330e19960101xx s 000 0 eng 10.1007/BF01239343 doi (NATIONALLICENCE)springer-10.1007/BF01239343 Effects of predator-specific defence on biodiversity and community complexity in two-trophic-level communities [Elektronische Daten] [Hiroyuki Matsuda, Michio Hori, Peter Abrams] Summary: Antipredator strategies employed by prey may be specific (effective against only one type of predator) or non-specific (effective against all predators). To examine the effects of the specificity of antipredator behaviour on biodiversity and community complexity, we analyse mathematical models including both evolutionary and population dynamics of a system including multiple prey species and multiple predator species. The models assume that all predator species change in their prey choice and all prey species have evolutionary change in their antipredator effort in evolution. The traits of each species change in an adaptive manner, whose rate is proportional to the slope of their fitness function. We calculate community complexity, resource-overlap between predators, an index of biodiversity and other properties of the coevolutionarily stable community for two cases: (1) all prey species have non-specific antipredator behaviour and (2) all prey species have predator-specific defence. Predator-specificity in defence increases community complexity, resource-overlap between predators, the total abundance of predators and the ratio of predator to prey abundance. Specific defence also decreases the number of isolated subwebs within the entire foodweb. Chapman & Hall, 1996 co-evolution nationallicence exploitative mutualism nationallicence anti-predator behaviour nationallicence co-evolutionarily stable state nationallicence community structure nationallicence Matsuda Hiroyuki Department of Biology, Faculty of Science, Kyushu University Higashi-ku, 812, Fukuoka, Japan aut Hori Michio Department of Biology, Wakayama Medical College, 651 Hironishi, 640, Wakayama, Japan aut Abrams Peter Department of Ecology, Evolution, and Behavior, University of Minnesota, 1987 Upper Buford Circle, 55108, St Paul, MN, USA aut Evolutionary Ecology Kluwer Academic Publishers 10/1(1996-01-01), 13-28 0269-7653 10:1<13 1996 10 10682 https://doi.org/10.1007/BF01239343 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01239343 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Matsuda Hiroyuki Department of Biology, Faculty of Science, Kyushu University Higashi-ku, 812, Fukuoka, Japan aut NATIONALLICENCE 700 1- Hori Michio Department of Biology, Wakayama Medical College, 651 Hironishi, 640, Wakayama, Japan aut NATIONALLICENCE 700 1- Abrams Peter Department of Ecology, Evolution, and Behavior, University of Minnesota, 1987 Upper Buford Circle, 55108, St Paul, MN, USA aut NATIONALLICENCE 773 0- Evolutionary Ecology Kluwer Academic Publishers 10/1(1996-01-01), 13-28 0269-7653 10:1<13 1996 10 10682 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 473303728 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer