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Filter Total Items: 3,081
Year Published: 1997

Reproduction of black-crowned night-herons related to predation and contaminants in Oregon and Washington, USA

We studied reproductive characteristics of Black-crowned Night-Herons (Nycticorax nycticorax) at four colonies in south central Washington and one colony in north central Oregon in 1991. Nest success, adjusted using the Mayfield method, was significantly different between colonies and ranged from 12-84% to hatching and 12-73% to 14 days post-...

Blus, L.J.; Rattner, B.A.; Melancon, M.J.; Henny, C.J.
Reproduction of black-crowned night-herons related to predation and contaminants in Oregon and Washington, USA; 1997; Article; Journal; Colonial Waterbirds; Blus, L.J.; Rattner, B.A.; Melancon, M.J.; Henny, C.J.

Year Published: 1997

The role of sediment ingestion in exposing wood ducks to lead

Waterfowl on lateral lakes of the Coeur d'Alene River and on Lake Coeur d'Alene have been poisoned for many years by lead (Pb) from mining and smelting. In 1992 we undertook a study in the area to determine the importance of sediment ingestion in exposing wood ducks (Aix sponsa) to Pb. Digesta were removed from the intestines of wood ducks...

Beyer, W.N.; Blus, L.J.; Henny, C.J.; Audet, D.
The role of sediment ingestion in exposing wood ducks to lead; 1997; Article; Journal; Ecotoxicology; Beyer, W.N.; Blus, L.J.; Henny, C.J.; Audet, D.

Year Published: 1997

The scientific bases for preservation of the Mariana crow

The Panel recently released the report and recommendations resulting from its work over the last six months. Although primarily focused on the Mariana Crow, the report highlights that this is a matter potentially far more serious than the preservation of the crow on Guam and Rota. The report includes major sections dealing with the need to...

National Research Council, Committee on the Scientific Bases for the Preservation of the Mariana Crow; Duckworth, W.D.; Beissinger, S.R.; Derrickson, S.R.; Fritts, T.H.; Haig, S.M.; James, F.C.; Marsluff, J.M.; Rideout, B.A.
The scientific bases for preservation of the Mariana crow; 1997; Book; National Research Council, Committee on the Scientific Bases for the Preservation of the Mariana Crow; Duckworth, W.D.; Beissinger, S.R.; Derrickson, S.R.; Fritts, T.H.; Haig, S.M.; James, F.C.; Marsluff, J.M.; Rideout, B.A.

Year Published: 1997

Iiwi (Vestiaria coccinea)

The ‘I‘iwi is one of the most spectacular of extant Hawaiian birds, with vermilion plumage, black wings and tail, and long, decurved bill. In pre-European Hawai‘i, beautiful feather capes, sometimes containing hundreds of thousands of ‘I‘iwi feathers, were a symbol of power and prestige among native Hawaiians. The ‘I‘iwi is a bird of the Hawaiian...

Fancy, Steven G.; Ralph, C. John

Year Published: 1997

A resource in crisis: Changing the measure of salmon management

No abstract available.

Frissell, C.A.; Liss, W.J.; Gresswell, R.E.; Nawa, R.K.

Year Published: 1997

Alternative silvicultural approaches to timber harvesting: Variable retention harvest systems

No abstract available.

Kohm, K.A.; Franklin, J.F.; Franklin, J.F.; Berg, D.F.; Thornburg, D.; Tappeiner, J. C.

Year Published: 1997

Evolution and life-history organization of Yellowstone cutthroat trout

No abstract available.

Gresswell, Robert E.; Williams, Richard N.; Shiokawa, K.

Year Published: 1997

Integrated sampling for amphibian communities in montane habitats

No abstract available.

Bury, R.B.; Major, D.J.