期刊
ECOLOGY
卷 97, 期 9, 页码 2199-2205出版社
WILEY-BLACKWELL
DOI: 10.1002/ecy.1505
关键词
central California; facilitation; habitat amelioration; mussel recruitment; Mytilus californianus; ontogenetic shifts; organismal movement; rocky intertidal; stress-gradient hypothesis
类别
资金
- Long Marine Lab
- Myers Trust
- UCSC's EEB Department
- NSF GK-12 SCWIBLES Program [DGE-0947923]
- AAUW American Dissertation Fellowship
A number of ecological factors have been shown to influence the importance of positive interactions (i.e., facilitation) in nature, including environmental stress and ontogenetic effects, and many more are likely to emerge as facilitation research expands to new ecosystems and taxa. In this study, I used a combination of field surveys and experiments to explore the roles of stress, ontogeny, and organismal movement in determining the importance of mussel (Mytilus californianus) recruit facilitation in central California. Results indicate that interactions between mussel recruits (shell length <20 mm) and habitat ameliorating neighbors shift from neutral to positive from the low to high mussel zone. I also observed ontogenetic shifts in recruit survival and growth in the upper mussel zone that suggest mussel recruits migrate from algal substrate to adult mussel beds. This type of habitat shift, where an organism moves sequentially from one facilitator to another, may be common in nature and presents an exciting new area for research.
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