Interactions between Merlins (Falco columbarius) and Dunlins (Calidris alpina) were studied at estuarine areas in western Washington during winter, 1979

In 1980, we searched for Snowy Plovers (Charadrius alexandrinus) in an area of $130,000\ {\rm km}^{2}$ in southeastern Oregon and

Correlations between morphological and genetic data provide evidence to delineate species or evolutionarily significant units, which then become the units

A simulation model of the movements of the northern fur seal (Callorhinus ursinus) population within the Bering Sea has been

Models of population dynamics and migration were developed and combined with an oil spill simulation model to determine the effects

We examined the mortality rates and causes of death of harbor seal (Phoca vitulina) pups in three regions of the