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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

Field and laboratory evaluation of the influence of copper-diquat on apple snails in southern Florida Field and laboratory evaluation of the influence of copper-diquat on apple snails in southern Florida

The recent decline of apple snail (Pomacea paludosa) populations in canals surrounding Loxahatchee National Wildlife Refuge in southern Florida coincided with the use of copper-diquat for the control of the aquatic weed hydrilla (Hydrilla verticillata). Field and laboratory studies were designed to assess the effects of copper-diquat on apple snails, which are the primary food of the...
Authors
P. V. Winger, M.J. Imlay, W.E. McMillan, T.W. Martin, Jean E. Takekawa, W.W. Johnson

Reproductive success of black skimmers in Texas relative to environmental pollutants Reproductive success of black skimmers in Texas relative to environmental pollutants

We studied the nesting ecology of Black Skimmers along the lower Texas coast during 1978-1981 to learn more of their reproductive status and to evaluate the effects of organochlorine pollutants, such as DDE, on productivity. For 542 nests, the average clutch size was 3.3 eggs. Flooding was the major cause of colony destruction and abandonment. Clutch size in renest attempts decreased
Authors
Donald H. White, C. A. Mitchell, D. M. Swineford

Trimorphodon Trimorphodon

No abstract available.
Authors
N.J. Scott, R.W. McDiarmid

The use of auxiliary variables in capture-recapture and removal experiments The use of auxiliary variables in capture-recapture and removal experiments

The dependence of animal capture probabilities on auxiliary variables is an important practical problem which has not been considered in the development of estimation procedures for capture-recapture and removal experiments. In this paper the linear logistic binary regression model is used to relate the probability of capture to continuous auxiliary variables. The auxiliary variables...
Authors
K. H. Pollock, J.E. Hines, J.D. Nichols

Observer visitation frequency and success of mourning dove nests: A field experiment Observer visitation frequency and success of mourning dove nests: A field experiment

Field studies of nesting success generally require visits by the investigator to the nests under study. Such visits may themselves influence nesting success, however, and this possibility has been discussed and investigated by a number of workers with a variety of bird species. Livezey (1980) reviewed the relevant literature for duck nests and noted that most studies failed to...
Authors
J.D. Nichols, H.F. Percival, R.A. Coon, M.J. Conroy, Gary L. Hensler, J.E. Hines
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