Chemical Ecology of Wave-Swept Shores: the Primacy of Contact Cues in Predation by Whelks

Autor: Cheryl Ann Zimmer, Graham A. Ferrier, Richard K. Zimmer
Rok vydání: 2016
Předmět:
Zdroj: The Biological Bulletin. 231:207-215
ISSN: 1939-8697
0006-3185
DOI: 10.1086/691068
Popis: Wave-swept shores are valuable for developing and testing key ecological principles. A synthesis of research is nonetheless missing a critical component: the chemosensory basis for behavioral interactions that determine population- and community-wide attributes. Chemical signaling environments on wave-swept shores, given their intense, turbulent mixing and complex topographies, would be difficult or impossible to simulate in a laboratory setting. For this reason, appropriately scaled field studies are needed to advance understanding of chemical stimuli and their biotic effects. Here, we performed a field investigation to establish the relative roles of dissolved and contact cues in predation by whelks (Acanthinucella spirata) on barnacles (Balanus glandula), their preferred prey. Experiments tested responses of whelks to seawater drawn above dense prey patches (10,240–12,180 barnacles m−2) and also over adjacent sand flats (no prey present). There was no evidence of waterborne stimuli associated w...
Databáze: OpenAIRE