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Reduced reproduction of wedge-tailed shearwaters exposed to weathered Santa Barbara crude oil

Archives of Environmental Contamination and Toxicology, ISSN: 0090-4341, Vol: 15, Issue: 4, Page: 453-463
1986
  • 51
    Citations
  • 0
    Usage
  • 18
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    51
    • Citation Indexes
      47
    • Policy Citations
      4
      • Policy Citation
        4
  • Captures
    18

Article Description

Wedge-tailed Shearwaters breeding on Manana Island, Hawaii were treated with 0.1-2.0 ml weathered Santa Barbara crude oil either by external application to the breast plumage or by oral dose in gelatin capsules approximately 30 days prior to egg laying. Applications of oil caused reduced lay, lowered hatching success, and reduced breeding success. Two ml applied externally to the breast plumage resulted in a greatly reduced number of eggs laid and complete hatching failure of 60 pair of exposed birds. Oral doses of oil in gelatin capsules reduced laying and breeding success, but to a lesser extent than external exposure. Oil exposure did not change the length of the prelaying exodus or cause birds to move to new areas of the breeding colony, but resulted in abandonment and reduced incubation attentiveness. Growth rates of chicks of oral dosed birds were not different from controls, although survival of chicks of dosed birds was reduced. Long-term effects of external application of 2.0 ml of oil were demonstrated by a decreased number of birds returning to the colony in the year after dosing and reduced breeding success one year after oil exposure. © 1986 Springer-Verlag New York Inc.

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