Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 41918
Book Review: Check list of helminth parasites of African fishes by L. F. Khalil
In spite of the fact that freshwater covers about 74,000 square miles of Africa, surprisingly little work has been done on the helminth parasites of African fishes.
Authors
G. L. Hoffman
Current status of the endangered masked bobwhite quail
No abstract available.
Authors
R. E. Tomlinson
California condor survey, 1971
No abstract available.
Authors
W.D. Carrier, R.D. Mallette, S. Wilbur, J.C. Borneman
The seventy-second Christmas bird count. 296. Ocean City, Md
No abstract available.
Authors
C.S. Robbins
Copulation by California condors
Koford (Res. Rept. No. 3, Natl. Audubon Soc., 1953) observed sexual display among California Condors (Gymnogyps californianus) on more than 30 occasions, yet only once did he see what he thought was copulation. Some of the displays he watched were quite intricate, with considerable posturing and "male" aggression, but no such activity preceded this copulation. The birds sat several feet apart for
Authors
S.R. Wilbur, J.C. Borneman
A new species of warbler (Parulidae) from Puerto Rico
The West Indies are among the best known of the world's tropical regions, and our knowledge of the distribution of indigenous land birds in the Greater Antilles has been thought to be nearly complete (Bond, 1956). The last new species from the Antilles were described in 1927, the results of work in the Zapata Swamp of Cuba (Barbour and Peters, 1927) and the isolated Morne de la Selle in Haiti (We
Authors
C.B. Kepler, K.C. Parkes
Distribution and numbers of the California condor, 1966-1971
No abstract available.
Authors
S.R. Wilbur, W.D. Carrier, J.C. Borneman, R.D. Mallette
Notes on the ecology of Puerto Rican swifts, including the first record of the white-collared swift Streptoprocne zonaris
No abstract available.
Authors
C.B. Kepler
[Book review] Veterinary Clinical Pathology by Margaret W. Sloss. Iowa State University Press, 4th ed., 1970
No abstract available.
Authors
L. N. Locke