Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 41764
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 that of pre
Authors
C.S. Robbins
The seventy-fourth Christmas bird count. 333. Little Creek, Va
No abstract available.
Authors
P. Sykes
The seventy-fourth Christmas bird count. 320. Back Bay National Wildlife Refuge, Va
No abstract available.
Authors
P. Sykes
Enzyme changes in mallard ducks fed iron or lead shot
No abstract available.
Authors
R.S. Rozman, L. N. Locke, S.F. McClure
Integrated wildlife research in the Superior National Forest
No abstract available.
Authors
L. D. Mech, R.B. Brander
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 mg. ribo
Authors
J.A. Serafin