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Oecologia


Title:Inducible defences in Daphnia: responses to two closely related predator species
Author(s):Barry MJ;
Address:"School of Life Sciences and Technology, Victoria University, St Albans Campus, GPO Box 14428, MCMC, Melbourne 8001, Australia e-mail: michael.barry@vu.edu.au; Fax +61-3-93652465, , , , , , AU"
Journal Title:Oecologia
Year:2000
Volume:124
Issue:3
Page Number:396 - 401
DOI: 10.1007/s004420000420
ISSN/ISBN:1432-1939 (Electronic) 0029-8549 (Linking)
Abstract:"The predator-induced responses of two species of Australian Daphnia, with contrasting distributions and life history patterns, to the kairomones of two species of Anisops predators, were measured. Daphnia longicephala produced a large crest and attained a larger size when exposed to both predators. D. carinata sl matured earlier than D. longicephala and did not produce a crest. Surprisingly, kairomones of both predators inhibited the production of ephippia in D. carinata sl. Anisops stali, the larger of the two predator species, induced a significantly larger crest size in D. longicephala, and larger brood size in both species compared with the smaller A. gratus, indicating a quantitative but not qualitative effect of predator species on inducible defences"
Keywords:Chemical communication Crest induction Ephippia Kairomone Key words Anisops;
Notes:"PubMed-not-MEDLINEBarry, M J eng Germany 2000/08/01 Oecologia. 2000 Aug; 124(3):396-401. doi: 10.1007/s004420000420"

 
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