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
Reintroduction as a conservation strategy for parrots Reintroduction as a conservation strategy for parrots
No abstract available.
Authors
J. W. Wiley, N.F.R. Snyder, R.S. Gnam
Organochlorines and heavy metals in the Bering-Chukchi Sea ecosystems Organochlorines and heavy metals in the Bering-Chukchi Sea ecosystems
No abstract available.
Authors
C.P. Rice, S.M. Chernyak, D. Hinckley, A. Krynitsky, T. Kolobova
Effects of extended photoperiod on sandhill crane reproduction Effects of extended photoperiod on sandhill crane reproduction
Photoperiod studies were conducted with greater sandhill cranes (Grus canadensis tabida) from 1969 to 1972 and from 1982 to 1987 at the Patuxent Wildlife Research Center, Maryland. When housed indoors and exposed to long photoperiods, males produced semen during winter. When exposed to artificially extended photoperiods during spring in outdoor pens, females apparently laid earlier in...
Authors
G.F. Gee, G.W. Pendleton
Quantity and distribution of plastics: An analysis of chemical hazards to marine life Quantity and distribution of plastics: An analysis of chemical hazards to marine life
No abstract available.
Authors
G. J. Smith, C. J. Stafford
Progress in satellite tracking cranes Progress in satellite tracking cranes
We review the history of tracking cranes with satellite telemetry and identify some of the difficulties in designing satellite transmitters and harnesses for cranes. Miniaturization of these transmitters and a plethora of harnessing experiments since 1989 allow us to recommend limited application of this technology to all species of cranes. We are still uncertain, however, if cranes...
Authors
D. H. Ellis, D.G. Smith, Glenn H. Olsen, M.R. Fuller, S.E. Landfried, H. Higuchi, C.H. Vermillion
Sampling considerations involved with monitoring the nutritional status of gray wolves Canis lupus via biochemical analysis of snow-urine Sampling considerations involved with monitoring the nutritional status of gray wolves Canis lupus via biochemical analysis of snow-urine
No abstract available.
Authors
G. D. DelGiudice, J. Stone, L.D. Mech, U.S. Seal
Prevention of eastern equine encephalitis virus in captive cranes Prevention of eastern equine encephalitis virus in captive cranes
No abstract available.
Authors
J. W. Carpenter, D.M. Watts, C.L. Crabbs, G.G. Clark, T.W. Scott, D. Docherty, B.B. Pagac, J.M. Dorothy, J.G. Olson, F. J. Dein
Characteristics of snowy plover (Charadrius alexandrinus) nest sites on agricultural drainwater evaporation ponds in the San Joaquin valley, California Characteristics of snowy plover (Charadrius alexandrinus) nest sites on agricultural drainwater evaporation ponds in the San Joaquin valley, California
No abstract available.
Authors
D. A. Barnum, W.L. Hohman, D.L. Roster
Comparison of neotropical migrant landbird populations wintering in tropical forest, isolated forest fragments, and agricultural habitats Comparison of neotropical migrant landbird populations wintering in tropical forest, isolated forest fragments, and agricultural habitats
Neotropical migrant bird populations were sampled at 76 sites in seven countries by using mist nets and point counts during a six-winter study. Populations in major agricultural habitats were compared with those in extensive forest and isolated forest fragments. Certain Neotropical migrants, such as the Northern Parula, American Redstart, and the Black-throated Blue, Magnolia, Black-and...
Authors
C.S. Robbins, B.A. Dowell, D.K. Dawson, J.A. Colon, R. Estrada, A. Sutton, R. Sutton, Dieter Weyer
Geographic patterns in population trends of neotropical migrants in North America Geographic patterns in population trends of neotropical migrants in North America
We use the route-regression method to estimate the population trends of 100 species of Neotropical migrants using data from the North American Breeding Bird Survey (BBS). We examine long-term (1966-1988) and recent (1978-1988) trends. In the long-term, more species of Neotropical migrants were increasing than were decreasing in the eastern and western parts of the continent, but recent...
Authors
J.R. Sauer, Sam Droege
Population dynamics of breeding waterfowl Population dynamics of breeding waterfowl
No abstract available.
Authors
Douglas H. Johnson, J.D. Nichols, M.D. Schwartz