Nest desertion and cowbird parasitism: evidence for evolved responses and evolutionary lag

Article Abstract:

Research is presented describing nest desertion's role as an antiparasite defence in the brown-headed cowbird, in the habitat types of forest, nonforest and intermediate. The frequency of desertion is shown to differ among the habitat types.

Phylogeny, Parental behavior in animals, Animal parental behavior, Cowbirds

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Effects of light and presence of fish on lure display and larval release behaviours in two species of freshwater mussels

Article Abstract:

A new study investigates the mechanisms used by two species of freshwater mussels to transfer their parasitic larvae to fish hosts.

Mussels, Fresh-water, Freshwater mussels

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Relic behaviours, coevolution and the retention versus loss of host defences after episodes of avian brood parasitism

Article Abstract:

A new study investigates egg recognition in two unparasitised bird populations, the grey catbird and the loggerhead shrike, that may have suffered past parasitism.

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