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
Introduction: multiple stressors and declining amphibian populations: evaluating cause and effect Introduction: multiple stressors and declining amphibian populations: evaluating cause and effect
No abstract available.
Authors
G. Linder, S.T. Branca, D. W. Sparling, S.K. Krest
Synergistic effects of a combined exposure to herbicides and an insecticide in Hyla versicolor Synergistic effects of a combined exposure to herbicides and an insecticide in Hyla versicolor
Combinations of the herbicides atrazine and metolachlor and the insecticide chlorpyrifos were tested under both laboratory and field conditions to determine their individual and combined effects on amphibian populations. In the lab Hyla versicolor tadpoles experienced 100% mortality when exposed to a high combination of the pesticides (2.0 mg/L atrazine, 2.54 mg/L metolachlor, 1.0 mg/L
Authors
L. Mazanti, D. W. Sparling, C. Rice, K. Bialek, C. Stevenson, B. Teels
Multiple stressors and declining amphibian populations: an integrated analysis of cause-effect to support adaptive resource management Multiple stressors and declining amphibian populations: an integrated analysis of cause-effect to support adaptive resource management
No abstract available.
Authors
D. W. Sparling, S.K. Krest, G. Linder
The eastern box turtle at the Patuxent Wildlife Research Center 1940s to the present: another view The eastern box turtle at the Patuxent Wildlife Research Center 1940s to the present: another view
Several long-term mark recapture studies have been conducted on box turtles (Terrapene c. carolina) providing valuable information on life span, basic demography, home range, and apparent effects of environmental changes on box turtle survival. One of the longest studied populations was first marked in 1942 on the Patuxent Wildlife Research Center in Maryland, and has been surveyed every...
Authors
P.F.P. Henry
Nonidentifiability of population size from capture-recapture data with heterogeneous detection probabilities Nonidentifiability of population size from capture-recapture data with heterogeneous detection probabilities
Heterogeneity in detection probabilities has long been recognized as problematic in mark-recapture studies, and numerous models developed to accommodate its effects. Individual heterogeneity is especially problematic, in that reasonable alternative models may predict essentially identical observations from populations of substantially different sizes. Thus even with very large samples...
Authors
W.A. Link
Petroleum and individual polycyclic aromatic hydrocarbons Petroleum and individual polycyclic aromatic hydrocarbons
A general treatment of petroleum and PAHs including presentations on composition and characteristics, sources, environmental fate, and effects on plants, invertebrates, fish, reptiles and amphibians, birds, and mammals. A revision of the 1995 book chapter of the same title.
Authors
Peter H. Albers
Behavioral profiles of the captive juvenile whooping crane (Grus americana) as an indicator of reintroduction behavior and survival Behavioral profiles of the captive juvenile whooping crane (Grus americana) as an indicator of reintroduction behavior and survival
Predation by bobcats (Lynx rufus) has been the greatest cause of mortality of whooping cranes (Grus americana) in the reintroduced population in Florida. This study investigated whether the behavior of juvenile cranes during captive rearing and shortly after release can be used to predict their chances of survival once released in the wild. This study also examined differences in...
Authors
M.D. Kreger
Oral biology and beak disorders of birds Oral biology and beak disorders of birds
The beak, or bill, of the bird is a complicated structure. The avian skull is described as having some reptilian features; this includes a quadrate bone that articulates with the articular bone of the lower jaw.
Authors
Glenn H. Olsen
A review of the role of contaminants in amphibian declines A review of the role of contaminants in amphibian declines
For the past decade, there has been growing concern about worldwide declines in amphibian populations,1,2 and a general phenomenon of declining populations was recognized in the mid-1990's. Subsequent research has validated this concern.3,4 These population declines have been defined either as decreases in numbers of individuals in an area or, preferably because of greater reliability, a...
Authors
Donald W. Sparling
The Chernobyl Nuclear Power Plant accident: ecotoxicological update The Chernobyl Nuclear Power Plant accident: ecotoxicological update
The accident at the Chernobyl, Ukraine, nuclear reactor on 26 April 1986 released large amounts of radiocesium and other radionuclides into the environment, contaminating much of the northern hemisphere, especially Europe. In the vicinity of Chernobyl, at least 30 people died, more than 115,000 others were evacuated, and consumption of milk and other foods was banned because of...
Authors
R. Eisler