Abstracts

Biological sciences

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Time of day of ovulation by three duck species in subarctic Alaska

Article Abstract:

Variations in ovulation times of Northern Pintails, Lesser Scaup and American Wigeon in subarctic Alaskan wetlands were studied. Ovulation times were found to be highly variable, with Lesser Scaup demonstrating a morning peak. The variations indicate that fitness is not linked to egg-laying time, and egg-laying intervals could have more adaptive significance than egg-laying time.

Research, Behavior, Observations, Ornithological research, Ovulation

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Correlations of Harlequin Duck densities during winter in Prince William Sound, Alaska

Article Abstract:

Issues concerning the relationships between attributes of habitat and densities of Harlequin Ducks during winters in Prince William Sound, Alaska, are discussed. Particular attention is given to the effect on the environment of Exxon Valdez oil spill.

Natural history, Habitats, Ducks, Exxon Valdez Oil Spill Disaster, 1989, Prince William Sound

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Nine years after the Exxon Valdez oil spill: effects on marine bird population in Prince William sound, Alaska

Article Abstract:

Research examining the effects of the oil spill Exxon Valdez which took place in Prince William sound, Alaska, in March 1989, on the marine bird population is presented. Comparisons are drawn between densities of birds before and after the spill.

Alaska, Oil spills

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