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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

Response of avian communities to herbicide-induced vegetation changes Response of avian communities to herbicide-induced vegetation changes

The relationships between avian communities and herbicide modification of vegetation were analyzed on early-growth clear-cuts in western Oregon that had received phenoxy herbicide treatment 1 or 4 years previously. For both 1 and 4 years post-spray, vegetation development was greater in the third height interval (> 3.0 m) on untreated sites. All measures of vegetative diversity on...
Authors
Michael L. Morrison, E. Charles Meslow

Contamination of the O2 soil horizon by zinc smelting and its effect on woodlouse survival Contamination of the O2 soil horizon by zinc smelting and its effect on woodlouse survival

Samples of litter from the O2 horizon of Dekalb soil (loamy-skeletal, mixed, mesic Typic Dystrochrept) were collected from 18 ridgetop sites on a transect that ran by two Zn smelters in Palmerton, Pa. Metal concentrations increased by regular gradations from a minimum at a site 105 km west of the smelters (67 mg/kg Zn, 0.85 mg/kg Cd, 150 mg/kg Pb, 11 mg/kg Cu) to a maximum 1.2 km east of...
Authors
W. N. Beyer, G.W. Miller, E.J. Cromartie

Simulation analyses of space use: Home range estimates, variability, and sample size Simulation analyses of space use: Home range estimates, variability, and sample size

Simulations of space use by animals were run to determine the relationship among home range area estimates, variability, and sample size (number of locations). As sample size increased, home range size increased asymptotically, whereas variability decreased among mean home range area estimates generated by multiple simulations for the same sample size. Our results suggest that field...
Authors
Marc Bekoff, L. David Mech

Acute responses of American kestrels to methyl parathion and fenvalerate Acute responses of American kestrels to methyl parathion and fenvalerate

Physiological and toxicological effects of p.o, methyl parathion (0.375-3.0 mg/kg) or fenvalerate (1000-4000 mg/kg) were examined over a 10 h period in American kestrels (Falco sparverius) maintained in thermoneutral (22?.C) and cold (-5?.C) environments. Methyl parathion was highly toxic (LD50=3.08 mg/kg, 95% confidence limits=2.29-4.l4 mg/kg, producing overt intoxication (abnormal...
Authors
Barnett A. Rattner, J. C. Franson

Masked Bobwhite Recovery Plan Masked Bobwhite Recovery Plan

The following steps, as outlined in the plan, must be implemented before considering reclassification of the endangered masked bobwhite: 1) reestablishment of three or more self-sustaining populations in Arizona; 2) maintenance and/or reestablishment of one or more self-sustaining populations in Mexico; and 3) permanent protection of all habitat supporting these populations. (In the plan...
Authors
D.E. Brown, D. H. Ellis, S.W. Hoffman
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