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Publications

Below is a list of WERC's peer-reviewed publications. If you are searching for a specific publication and cannot find it in this list, please contact werc_web@usgs.gov

Filter Total Items: 3743

Predation, herbivory and kelp evolution Predation, herbivory and kelp evolution

We propose that the kelps (Laminariales) radiated in the North Pacific following the onset of late Cenozoic polar cooling. The evidence is that (1) extant kelps occur exclusively in cold-water habitats; (2) all but one of 27 kelp genera occur in the North Pacific, 19 of these exclusively; and (3) limpets and herbivorous marine mammals obligately associated with kelps or other stipitate...
Authors
J. A. Estes, P.D. Steinberg

Fixed-wing airplane versus helicopter surveys of manatees (Trichechus manatus) Fixed-wing airplane versus helicopter surveys of manatees (Trichechus manatus)

The abundance of manatees, as with most marine mammals, is difficult to determine because they are visible for only short periods of time while at the surface of the water (Eberhardt et al. 1979, Powell et al. 1981). Aerial surveys are generally considered to be the most accurate method of counting manatees, although there is no doubt that some undetermined proportion is missed (Irvine...
Authors
Galen B. Rathbun

Camels Camels

No abstract available at this time
Authors
J. A. Howell
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