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 computer program for estimating survival and recovery rates A computer program for estimating survival and recovery rates
No abstract available.
Authors
David R. Anderson, C.F. Kimball, F.R. Fiehrer
Population dynamics of molting pintail drakes banded in south-central Saskatchewan Population dynamics of molting pintail drakes banded in south-central Saskatchewan
A total of 18,820 adult male pintails (Anas acuta) were trapped, banded, and released on Pel and Kutawagan marshes in south-central Saskatchewan in July 1955-58. Two hundred and fortyeight of these banded birds were recaptured on the same marshes during subsequent trapping operations, and 1,440 were recovered (shot or found dead) during legal hunting seasons, 1955-70. The size of the...
Authors
David R. Anderson, R.T. Sterling
Salmonellosis in a captive heron colony Salmonellosis in a captive heron colony
Salmonellosis caused by Salmonella typhimurium was one of several factors responsible for losses among young herons being held at the Patuxent Wildlife Research Center. The infection was demonstrated in five black-crowned night herons (Nycticorax nycticorax), three common egrets (Casmerodius albus), two little blue herons (Florida caerulea), one cattle egret (Bubulcus ibis), one snowy...
Authors
L. N. Locke, H. M. Ohlendorf, R.B. Shillinger, T. Jareed
Karyotypic analyses of twenty-one species of molossid bats (Molossidae: Chiroptera) Karyotypic analyses of twenty-one species of molossid bats (Molossidae: Chiroptera)
Examination of 135 specimens representing 21 species from seven genera of the family Molossidae revealed diploid numbers ranging from 34 to 48. Seventeen species from six genera have diploid numbers of 48. Geographic variation and polymorphism were found only in Eumops glaucinus. Chromosomal variation within the family is presumed to be primarily due to changes in diploid number...
Authors
J. W. Warner, James L. Patton, Alfred Gardner, Robert J. Baker
Capture-recapture analysis of a wintering black-capped chickadee population in Connecticut, 1958-1993 Capture-recapture analysis of a wintering black-capped chickadee population in Connecticut, 1958-1993
We investigated the dynamics of a wintering population of Black-capped Chickadees (Parus atricapillus) using data from a long-term capture-recapture study. Goodness-of-fit and likelihood-ratio tests indicated that the standard Jolly-Seber model was inadequate for the data, so we explored different parameterizations of a model in which survival probability for new captures differed from...
Authors
C.S. Robbins
Studies on the riboflavin, niacin, pantothenic acid and choline requirements of young Bobwhite quail Studies on the riboflavin, niacin, pantothenic acid and choline requirements of young Bobwhite quail
Four experiments were conducted to examine the riboflavin, niacin, pantothenic acid and choline requirements of young Bobwhite quail. Quail fed purified diets deficient in either riboflavin, niacin, pantothenic acid or choline grew poorly and high mortality occurred by 5 weeks of age. Under the conditions of these experiments, it was found that: (1) young quail require approximately 3.8...
Authors
John A. Serafin
California condor specimens in collections California condor specimens in collections
No abstract available.
Authors
S.R. Wilbur
The status of the light-footed clapper rail The status of the light-footed clapper rail
Only 12 California marsh areas are presently believed to be inhabited by the Light-footed Clapper Rail, and eight of these appear to support only 5-15 birds apiece. Tentative estimates for the other four are: Anaheim Bay 200, Upper Newport 30-35, Los Penasquitos 30, and Tijuana Estuary 150. These estimates, admittedly very rough, indicate a total Light-footed Rail population on only...
Authors
S.R. Wilbur
Diseases and parasites in urban wildlife Diseases and parasites in urban wildlife
No abstract available.
Authors
L. N. Locke