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: 3776
Endocrine function and reproductive impairment in an irradiated population of the lizard Uta stansburiana Endocrine function and reproductive impairment in an irradiated population of the lizard Uta stansburiana
This study describes gonadal changes in lizards (Uta stansburiana) exposed to chronic low levels of γ radiation (1.5-10 R/day) under field conditions and attempts to evaluate endocrine involvement in these changes. Reproductive impairment in irradiated males is demonstrated during the breeding season by reduced testes weights and by seminiferous tubules devoid of germ cells...
Authors
A.K. Pearson, P. Licht, K.A. Nagy, P.A. Medica
Aleuts, sea otters, and alternate stable state communities Aleuts, sea otters, and alternate stable state communities
Reexamination of stratified faunal components of a prehistoric Aleut midden excavated on Amchitka Island, Alaska, indicates that Aleut prey items changed dramatically during 2500 years of aboriginal occupation. Recent ecological studies in the Aleutian Islands have shown the concurrent existence of two alternate stable nearshore communities, one dominated by macroalgae, the other by...
Authors
C.A. Simenstad, J. A. Estes, K.W. Kenyon
Albumin polymorphism in the feral donkey of Death Valley National Monument, California Albumin polymorphism in the feral donkey of Death Valley National Monument, California
No abstract available at this time
Authors
J.G. Blake, C. L. Douglas
The African pitta at Gedi Ruins, Kenya The African pitta at Gedi Ruins, Kenya
No abstract available.
Authors
G. B. Rathbun
Forty-first breeding bird census. No. 147. Tamarisk-desert riparian Forty-first breeding bird census. No. 147. Tamarisk-desert riparian
No abstract available.
Authors
E.A. Cardiff, S.W. Cardiff, K.H. Berry
Forty-first breeding bird census. No. 164. Desert marsh Forty-first breeding bird census. No. 164. Desert marsh
No abstract available.
Authors
M. Weinstein, K.H. Berry
Sea otter predation and community organization in the western Aleutian Island, Alaska Sea otter predation and community organization in the western Aleutian Island, Alaska
Predation by the sea otter (Enhydra lutris) limits epibenthic invertebrates, especially sea urchins (Strongylocentrotus polyacanthus), in turn allowing a luxuriant development of the macroalgal canopy. Where sea otters are abundant, sea urchins are small and scarce in shallow water, and the association of fleshy macroalgae apparently is regulated by competition. Sea urchins are larger...
Authors
J. E. Estes, N. S. Smith, J. F. Palmisano
Evaluation of an aerial survey of Pacific walruses Evaluation of an aerial survey of Pacific walruses
An aerial survey of Pacific walruses (Odobenus rosmarus divergens) was evaluated to determine the reliability of estimates of population abundance. The probability of detecting groups of walruses on the pack ice remained uniform to at least 0.93 km from the flight line, whereas the probability of detection decreased significantly beyond 0.23 km for walruses in the water. Walruses were...
Authors
J. A. Estes, James R. Gilbert
Survivorship patterns in captive killer whales (Orcinus orca) Survivorship patterns in captive killer whales (Orcinus orca)
No abstract available.
Authors
Clifford A. Hui, Sam H. Ridgway
Proceedings of a workshop on techniques of rehabilitation and erosion control in recently roaded and logged watersheds, with emphasis to north coastal California. March 13-14, 1978 Proceedings of a workshop on techniques of rehabilitation and erosion control in recently roaded and logged watersheds, with emphasis to north coastal California. March 13-14, 1978
No abstract available at this time
Authors
Mary Ann Madej, H.M. Kelsey
Radio-telemeteric studies of movements in desert bighorn sheep, Joshua Tree National Monument Radio-telemeteric studies of movements in desert bighorn sheep, Joshua Tree National Monument
No abstract available at this time
Authors
C. L. Douglas, L. White
The status of the flat-tailed horned lizard, (Phrynosoma mcallii), at nine sites in Imperial and Riverside counties, California The status of the flat-tailed horned lizard, (Phrynosoma mcallii), at nine sites in Imperial and Riverside counties, California
No abstract available at this time
Authors
F.B. Turner, P.A. Medica, H.O. Hill