doi: 10.1126/science.215.4531.421.
Helpers: effects of experimental removal on reproductive success
- PMID: 17814957
- DOI: 10.1126/science.215.4531.421
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Helpers: effects of experimental removal on reproductive success
Science.
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Abstract
Experimental removal of helpers from a communal bird population decreased the reproductive success of the reduced units. By controlling for variables that are potentially correlated with both reproductive success and unit size, this experiment establishes that helpers-contribute significantly to their indirect fitness.
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