Feeney, William E.; Langmore, Naomi E.
Brood parasites typically impose costs on their hosts, which select for host defenses. However, where defenses are
costly, hosts can benefit by facultative expression of defenses in relation to the risk of parasitism. The results of our
model-presentation experiments show that Superb Fairy-wrens (Malurus cyaneus) mediate vigilance around their nest
according to their perceived risk of brood parasitism; when the risk of parasitism is high, they increase the time they
spend in the vicinity of...[Show more]
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