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
Relative effects of plumage coloration and vegetation density on nest success Relative effects of plumage coloration and vegetation density on nest success
Many passerine species are highly dichromatic with brightly-colored males and cryptically-colored females. Bright plumage in males is commonly thought to arise as a result of sexual selection by females such that males with bright coloration possess high fitness. However, bright plumage potentially could expose males to increased predation risk. Consistent with this idea, males of many...
Authors
M.W. Miller
Using endoscopy to diagnose hatching problems in cranes Using endoscopy to diagnose hatching problems in cranes
No abstract available.
Authors
Glenn H. Olsen
Species, habitat alterations affect bee pollinators in U.S. northeast Species, habitat alterations affect bee pollinators in U.S. northeast
No abstract available.
Authors
H. S. Ginsberg
Marsh birds and the North American Breeding Bird Survey: judging the value of a landscape level survey for habitat specialist species with low detection rates Marsh birds and the North American Breeding Bird Survey: judging the value of a landscape level survey for habitat specialist species with low detection rates
The North American Breeding Bird Survey was started in 1966, and provides information on population change for >400 species of birds. it covers the continental United States, Canada, and Alaska, and is conducted once each year, in June, by volunteer observers. A 39.4 kIn roadside survey route is driven starting 30 min before sunrise, and a 3 min point count is conducted at each of 50...
Authors
J.R. Sauer
Forest area and distribution in the Mississippi alluvial valley: Implications for breeding bird conservation Forest area and distribution in the Mississippi alluvial valley: Implications for breeding bird conservation
Knowing the current forest distribution and patch size characteristics is integral to the development of geographically defined, habitat-based conservation objectives for breeding birds. Towards this end, we classified 2.6 million ha of forest cover within the Mississippi Alluvial Valley using 1992 thematic mapper satellite imagery. Although historically this area, from southern Illinois...
Authors
D.J. Twedt, C.R. Loesch
Husbandry and care of quail Husbandry and care of quail
Both the Japanese and Bobwhite quail are important species for biomedical, toxicological and basic biological research. In view of their rapid maturation, high reproductive rate in captivity, and other physiological characteristics, these species have been and will continue to be used successfully as model avian species. This short reviews describes caging, environmental, and feed...
Authors
M. A. Ottinger, Barnett A. Rattner
Pollinator declines and changing pollination patterns Pollinator declines and changing pollination patterns
No abstract available.
Authors
H. S. Ginsberg, V.J. Tepedino
Waterfowl density on agricultural fields managed to retain water in winter Waterfowl density on agricultural fields managed to retain water in winter
Managed water on private and public land provides habitat for wintering waterfowl in the Mississippi Valley, where flood control projects have reduced the area of natural flooding. We compared waterfowl densities on rice, soybean, and moist-soil fields under cooperative agreements to retain water from 1 November through 28 February in Arkansas and Mississippi and assessed temporal...
Authors
D.J. Twedt, C.O. Nelms
A nonbreeding concentration of Roseate and Common Terns in Bahia, Brazil A nonbreeding concentration of Roseate and Common Terns in Bahia, Brazil
We report recoveries of banded Roseate (Sterna dougallii) and Common (S. hirundo) Terns netted at Mangue Seco, Bahia, Brazil (11? 27'S, 37? 21'W). Mangue Seco is the first reported South American location where large numbers of Roseate Terns concentrate December-March, and where members of both the North American and Caribbean populations occur together during these months. A Roseate...
Authors
H. Hays, P. Lima, L. Monteiro, J. DiConstanzo, G. Cormons, I.C.T. Nisbet, Jorge E. Saliva, J. A. Spendelow, J. Burger, J. Pierce, M. Gochfeld
Low abundance of microsatellite repeats in the genome of the brown-headed cowbird (Molothrus ater) Low abundance of microsatellite repeats in the genome of the brown-headed cowbird (Molothrus ater)
A cosmid library made from brown-headed cowbird (Molothrus ater) DNA was examined for representation of 17 distinct microsatellite motifs including all possible mono-, di-, and trinucleotide microsatellites, and the tetranucleotide repeat (GATA)n. The overall density of microsatellites within cowbird DNA was found to be one repeat per 89 kb and the frequency of the most abundant motif,...
Authors
Jonathan L. Longmire, D.C. Hahn, J.L. Roach
Organochlorine contaminants and reproductive success of double-crested cormorants from Green Bay, Wisconsin, USA Organochlorine contaminants and reproductive success of double-crested cormorants from Green Bay, Wisconsin, USA
In 1994 and 1995, nesting success of double-crested cormorants (Phalacrocorax auritus) was measured at Cat Island, in southern Green Bay, Lake Michigan, Wisconsin, USA. Sample eggs at pipping and unhatched eggs were collected and analyzed for organochlorines (including total polychlorinated biphenyls [PCBs] and DDE), hepatic microsomal ethoxyresorufin-O-dealkylase (EROD) activity in...
Authors
T. W. Custer, Christine M. Custer, R. K. Hines, S. Gutreuter, K. L. Stromborg, P. David Allen, M. J. Melancon