Altered behavior of parasitized killifish increases susceptibility to predation by bird final hosts
January 1, 1996
Parasites that are transmitted from prey to predator are often associated with altered prey behavior. Although many concur that behavior modification is a parasite strategy that facilitates transmission by making parasitized prey easier for predators to capture, there is little evidence from field experiments. We observed that conspicuous behaviors exhibited by killfish (Fundulus parvipinnis) were associated with parasitism by larval trematodes. A field experiment indicated that parasitized fish were substantially more susceptible to predation by final host birds. These results support the behavior—modification hypothesis and emphasize the importance of parasites for predator—prey interactions.
Citation Information
Publication Year | 1996 |
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Title | Altered behavior of parasitized killifish increases susceptibility to predation by bird final hosts |
DOI | 10.2307/2265536 |
Authors | Kevin D. Lafferty, A. K. Morris |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Ecology |
Index ID | 1007991 |
Record Source | USGS Publications Warehouse |
USGS Organization | Western Ecological Research Center |