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Corpus Systématique Animale

Titre du document

Effects of predator-specific defence on community complexity

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Springer (journals)
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Mots-clés d'auteur
  • co-evolution
  • community structure
  • food web
  • ideal free distribution
  • scale eaters
Nom du fichier dans la ressource
  • Hiroyuki Matsuda 1
  • Michio Hori 2
  • Peter A. Abrams 3
  • 1) Department of Biology, Faculty of Science, Kyushu University Higashi-ku, 812, Fukuoka, Japan
  • 2) Department of Biology, Wakayama Medical College, 651 Hironishi, 640, Wakayama, Japan
  • 3) Department of Ecology, Evolution, and Behavior, University of Minnesota, 1987 Upper Buford Circle, 55108, St Paul, MN, USA

Some properties of community structure are explored using co-evolutionary theory. We consider mathematical models of food webs in which all species in a community adopt foraging behaviours and antipredator behaviours that maximize individual fitness. If the antipredator behaviour of a prey is effective against all its enemies, the number of prey—predator links in a food web must be less than the sum of the numbers of prey and predator species. However, if an increase in a prey's attention to one type of predator decreases its attention to another type of predator, there may be no limit on the number of predator species using a common set of prey species. Predator-specific defence allows a much more complex community structure than non-specific defence. Predator-specific defence more frequently allows a large niche overlap between predators than does non-specific defence. The high connectivity of some fish communities in Lake Tanganyika may be an example of this phenomenon.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - evolutionary biology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - genetics & heredity
  • 1 - science ; 2 - evolutionary biology
  • 1 - science ; 2 - ecology
Identifiant ISTEX

Evolutionary Ecology

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