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Ectoparasitism and the role of green nesting material in the European starling

Oecologia

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Abstract

The use of green nesting material is wide-spread among birds. Recent evidence suggests that birds use secondary chemicals contained in green plants to control ectoparasites. We manipulated green nesting material and ectoparasites of European starlings (Sturnus vulgaris ) to test two hypotheses: (1) ectoparasites adversely affect prefledging survival and morphometrics or postfledging survival, and (2) green nesting material ameliorates the effects of ectoparasites. We recorded fat score, number of scabs, tarsal length, body mass, and hematocrit level on each nestling 17 days after hatching. We also fitted each nestling with unique patagial tags and resighted the starlings for 6-8 weeks after fledging to estimate survival and sighting rates. Nests devoid of green nesting material and dusted with the insecticide, carbaryl, had fewer high ectoparasite infestations, and nestlings had significantly lower scab scores, and significantly higher body masses than nestlings in undusted boxes. However, there was no difference in postfledging survival between birds from carbaryl-treated and undusted nests.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Ectoparasitism and the role of green nesting material in the European starling
Series title:
Oecologia
Volume
88
Issue:
1
Year Published:
1991
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
22-29
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Oecologia
First page:
22
Last page:
29