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
Spatial and temporal variation in soil and vegetation impacts on campsites Spatial and temporal variation in soil and vegetation impacts on campsites
We studied the impacts of camping on soil and vegetation at Delaware Water Gap national Recreation Area. We assessed the magnitude of impact on campsites that varied in amount of use and in topographic position. We also evaluated change over a 5-yr period on long-established, recently opened, and recently closed campsites, as well as on plots subjected to experimental trampling. Campsite...
Authors
Jeffrey L. Marion, David N. Cole
Environmental hazards of aluminum to plants, invertebrates, fish, and wildlife Environmental hazards of aluminum to plants, invertebrates, fish, and wildlife
Aluminum (Al) is the third most common mineral and the most common metal in Earth’s crust, accounting for approximately 8.1% of the crust by weight. Thus, it cannot be considered a contaminant in the usual sense of the word. However, despite its near omnipresence throughout the world, Al has been of major concern as a primary limiting factor to cultivated plants for several decades. In...
Authors
D. W. Sparling, T. P. Lowe
The conservation management of Kirtland's warbler Dendroica kirtlandii The conservation management of Kirtland's warbler Dendroica kirtlandii
Kirtland's Warbler Dendroica kirtlandii breeds in young jack pine Pinus banksiana forests on sandy soils in Michigan's lower peninsula, where there were 502 censused singing males in 1951 and 167 in 1974 and 1987. An ongoing control programme for the Brown-headed Cowbird Molothrus ater, a nest parasite, resulted in immediate and continued improvement in warbler reproductive success which...
Authors
Cameron B. Kepler, G. W. Irvine, M. E. DeCapita, J. Weinrich
Using landscape ecology to test hypotheses about large-scale abundance patterns in migratory birds Using landscape ecology to test hypotheses about large-scale abundance patterns in migratory birds
The hypothesis that Neotropical migrant birds may be undergoing widespread declines due to land use activities on the breeding grounds has been examined primarily by synthesizing results from local studies. Growing concern for the cumulative influence of land use activities on ecological systems has heightened the need for large—scale studies to complement what has been observed at local...
Authors
Curtis H. Flather, John R. Sauer
Dependence of waterbirds and shorebirds on shallow-water habitats in the Mid-Atlantic coastal region: An ecological profile and management recommendations Dependence of waterbirds and shorebirds on shallow-water habitats in the Mid-Atlantic coastal region: An ecological profile and management recommendations
Waterbirds (waterfowl, colonially nesting wading and seabirds, ospreys [Pandion haliaetus], and bald eagles [Haliaeetus leucocephalus]) and shorebirds (sandpipers, plovers, and relatives) may constitute a large fraction of the toplevel carnivore trophic component in many shallow-water areas of the mid-Atlantic region. The large biomass of many species (>1 kg body mass for the two raptors...
Authors
R.M. Erwin
Silver Hazards to Fish, Wildlife, and Invertebrates: A Synoptic Review Silver Hazards to Fish, Wildlife, and Invertebrates: A Synoptic Review
Ecological and toxicological aspects of silver (Ag) in the environment are briefly summarized with an emphasis on natural resources. Elevated silver concentrations in biota occur in the vicinities of sewage outfalls, electroplating plants, mine waste sites, and silver-iodide seeded areas; in the United States, the photography industry is the major source of anthropogenic silver...
Authors
R. Eisler
On NAAMP and the use of the Internet as a forum for evolving science On NAAMP and the use of the Internet as a forum for evolving science
Traditionally, science has been communicated through peerreviewed hardcopy. With the rapid growth of internet technology, many new potentials for sharing and evolution of ideas are possible: open, low cost communication between researchers, both accredited and amateur, may allow not joint problem solving at scales previously not possible. Conservation especially, is a dynamic field which...
Authors
R. Schmieder
Canada warbler, Wilsonia canadensis Canada warbler, Wilsonia canadensis
No abstract available.
Authors
C.S. Robbins
Black-throated blue warbler, Dendroica caerulescens Black-throated blue warbler, Dendroica caerulescens
No abstract available.
Authors
C.S. Robbins
New nesting area of Puerto Rican parrots New nesting area of Puerto Rican parrots
No abstract available.
Authors
J.M. Meyers
Tyrannula minima Baird & Baird, 1843 (currently Empidonax minimus) and Contopus pertinax Cabanis & Heine, 1859 (Aves, Passeriformes): Proposed conservation of the specific names Tyrannula minima Baird & Baird, 1843 (currently Empidonax minimus) and Contopus pertinax Cabanis & Heine, 1859 (Aves, Passeriformes): Proposed conservation of the specific names
No abstract available.
Authors
C.S. Robbins
Northern mockingbird, Mimus polyglottos Northern mockingbird, Mimus polyglottos
No abstract available.
Authors
C.S. Robbins