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
A survey for mallard pairs in the Atlantic flyway A survey for mallard pairs in the Atlantic flyway
During 1989-1992, spring surveys of randomly selected, 1-km2 plots, stratified by physiographic strata, were conducted in the Atlantic flyway from New Hampshire to Virginia, to estimate mallard (Anas platyrhynchos) pairs. All potential waterfowl habitat in each plot was checked by ground crews. The adjusted mean mallard pair estimate over the 4-year period was 300,849 (range 271,193-320...
Authors
H.W. Heusmann, John R. Sauer
Computer simulation of vasectomy for wolf control Computer simulation of vasectomy for wolf control
Recovering gray wolf (Canis lupus) populations in the Lake Superior region of the United States are prompting state management agencies to consider strategies to control population growth. In addition to wolf removal, vasectomy has been proposed. To predict the population effects of different sterilization and removal strategies, we developed a simulation model of wolf dynamics using...
Authors
R.G. Haight, L. David Mech
Tests for senescent decline in annual survival probabilities of common pochards, Aythya ferina Tests for senescent decline in annual survival probabilities of common pochards, Aythya ferina
Senescent decline in survival probabilities of animals is a topic about which much has been written but little is known. Here, we present formal tests of senescence hypotheses, using 1373 recaptures from 8877 duckling (age 0) and 504 yearling Common Pochards (Aythya ferina) banded at a Latvian study site, 1975-1992. The tests are based on capture-recapture models that explicitly...
Authors
James D. Nichols, James E. Hines, Peter Blums
A citywide breeding bird survey for Washington, D.C. A citywide breeding bird survey for Washington, D.C.
`DC Birdscape' was initiated in 1993 to systematically count the birds occurring throughout Washington D.C. during the breeding season. It involved a coordinated planning effort and partnership between the Audubon Naturalist Society, the National Park Service, and the National Biological Survey, and engaged the participation of more than 100 volunteers. A method for rapidly assessing the...
Authors
J. Hadidian, J.R. Sauer, C. Swarth, P. Handly, Sam Droege, C. Williams, J. Huff, G. Didden
Estimating temporary emigration using capture-recapture data with Pollock's robust design Estimating temporary emigration using capture-recapture data with Pollock's robust design
Statistical inference for capture–recapture studies of open animal populations typically relies on the assumption that all emigration from the studied population is permanent. However, there are many instances in which this assumption is unlikely to be met. We define two general models for the process of temporary emigration: completely random and Markovian. We then consider effects of...
Authors
W. L. Kendall, James D. Nichols, James E. Hines
White-faced Storm-Petrel off Sable Island, Nova Scotia: Canada's first? White-faced Storm-Petrel off Sable Island, Nova Scotia: Canada's first?
No abstract available.
Authors
P. A. Buckley
The name of Lawrence's flycatcher The name of Lawrence's flycatcher
If Lawrence's flycatcher of Grenada, Trinidad, and northern South America is placed in the genus Lathrotriccus with the species euleri, it should be L. flaviventris (Lawrence) or L. euleriflaviventris, depending on rank. If it remains in the genus Empidonax, the specific name should be bolivianus Allen.
Authors
R.C. Banks
Creation, management, and research on lakes and ponds at Patuxent Research Refuge Creation, management, and research on lakes and ponds at Patuxent Research Refuge
From 19391966, approximately 450 acres of impoundments were created for recreational and wildlife conservation purposes at Patuxent Research Refuge. Impoundments were of three major designs: impounded ravines, excavated basins, and impounded swamps. Over 50 species of wetland plants were transplanted to impoundments of Patuxent to determine best species for relatively infertile waters...
Authors
Matthew C. Perry
Zinc hazards to plants and animals with emphasis on fishery and wildlife resources Zinc hazards to plants and animals with emphasis on fishery and wildlife resources
Ecological and toxicological aspects of zinc in the environment are reviewed with emphasis on natural resources. Subtopics include sources and uses; chemical and biochemical properties; carcinogenicity, mutagenicity, teratogenicity; background concentrations in biological and nonbiological compartments; effects of zinc deficiency; toxic and sublethal effects on terrestrial plants and...
Authors
R. Eisler
Migratory bird hunting: Revised test protocol for nontoxic approval procedures for shot and shot coating; Final rule Migratory bird hunting: Revised test protocol for nontoxic approval procedures for shot and shot coating; Final rule
No abstract available.
Authors
C.M. Perry, K.A. Morehouse, Barnett A. Rattner