CANNIBALISM, FOOD LIMITATION, INTRASPECIFIC COMPETITION, AND THE REGULATION OF SPIDER POPULATIONS

DOI Web Site 被引用文献1件
  • David H. Wise
    Department of Entomology, University of Kentucky, Lexington, Kentucky 40546-0091;

書誌事項

公開日
2006-01-01
DOI
  • 10.1146/annurev.ento.51.110104.150947
公開者
Annual Reviews

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<jats:p> ▪ Abstract  Cannibalism among generalist predators has implications for the dynamics of terrestrial food webs. Spiders are common, ubiquitous arthropod generalist predators in most natural and managed terrestrial ecosystems. Thus, the relationship of spider cannibalism to food limitation, competition, and population regulation has direct bearing on basic ecological theory and applications such as biological control. This review first briefly treats the different types of spider cannibalism and then focuses in more depth on evidence relating cannibalism to population dynamics and food web interactions to address the following questions: Is cannibalism in spiders a foraging strategy that helps to overcome the effects of a limited supply of calories and/or nutrients? Does cannibalism in spiders reduce competition for prey? Is cannibalism a significant density-dependent factor in spider population dynamics? Does cannibalism dampen spider-initiated trophic cascades? </jats:p>

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