Publications
This is a list of publications written by Patuxent employees since Patuxent opened in 1939. To search for Patuxent's publications by author or title, please click below to go to the USGS Publication Warehouse.
Filter Total Items: 8128
Evaluating soil contamination Evaluating soil contamination
This compilation was designed to help U.S. Fish and Wildlife Service contaminant specialists evaluate the degree of contamination of a soil, based on chemical analyses. Included are regulatory criteria, opinions, brief descriptions of scientific articles, and miscellaneous information that might be useful in making risk assessments. The intent was to make hard-to-obtain material readily...
Authors
W. N. Beyer
Perspectives on research in the North American Waterfowl Management Plan Perspectives on research in the North American Waterfowl Management Plan
No abstract available.
Authors
J. R. Longcore
An old nesting record for the bald eagle An old nesting record for the bald eagle
No abstract available.
Authors
R. B. Clapp
Vocalizations of eight species of Atelopus (Anura: Bufonidae) with comments on communication in the genus Vocalizations of eight species of Atelopus (Anura: Bufonidae) with comments on communication in the genus
Vocalizations of frogs of the genus Atelopus include three discrete types of signals: pulsed calls, pure tone calls, and short calls. Repertoire composition is conservative across species. Repertoires of most species whose calls have been recorded contain two or three of these identifiable call types. Within a call type, details of call structure are very similar across species. This...
Authors
R.B. Cocroft, R.W. McDiarmid, A.P. Jaslow, P.M. Ruiz-Carranza
New migrant and vagrant bird records for the Mariana Islands, 1978-1988 New migrant and vagrant bird records for the Mariana Islands, 1978-1988
No abstract available.
Authors
P.O. Class, J.D. Reichel, T.O. Lemke, R. B. Clapp, G.J. Wiles, D.T. Aldan, T.K. Pratt
Within- and among-clutch variation of organochlorine residues in eggs of black-crowned night-herons Within- and among-clutch variation of organochlorine residues in eggs of black-crowned night-herons
Within-clutch variability of DDE and PCB residues in eggs from 62 clutches of black-crowned night-herons (Nycticorax nycticorax) was small (12% and 17%) compared to among-clutch variability (88% and 83%). Significant correlations between concentrations of DDE (median r=0.8885) and of PCBs (median r=0.8244) occurred when 501 correlations were run on two randomly selected eggs from within...
Authors
T. W. Custer, G. Pendleton, H. M. Ohlendorf
Raptor road surveys in South America Raptor road surveys in South America
Twenty-six (23 traveling and three point) raptor roadside surveys were conducted during a 29,000 km expedition through nine nations of South America. During roadside surveys, we tallied 41 of the 87 (47%) diurnal raptor species (including vultures) that occur in South America. The number of species observed per route varied from 17 in the wet savanna of Venezuela to only two species...
Authors
D. H. Ellis, R.L. Glinski, D.G. Smith
Egg size and laying order of snowy egrets, great egrets, and black-crowned night-herons Egg size and laying order of snowy egrets, great egrets, and black-crowned night-herons
The nesting biology of the family Ardeidae (bitterns, herons, and egrets) has been intensively studied (e.g., Owen 1960, Milstein et al. 1970, Werschkul 1979), but egg size in relation to laying order bas not received attention. The last egg laid in gull and tern clutches is generally smaller than preceding eggs (e.g., Parsons 1970, Nisbet 1978). The relative size of the final egg in a...
Authors
T. W. Custer, P. C. Frederick