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
Deer population in the Central Superior National Forest, 1967-1985 Deer population in the Central Superior National Forest, 1967-1985
Deer were aerially censused each winter from 1976 through 1985 in a 400-sq km2 area near Isabella, Minnesota, in the Central Superior National Forest; a correction factor based on aerial observability of radio-tagged deer in the same region was then applied to the census figures. Deer numbers, which had reached an estimated 3.5/sq km, declined drastically in the early 1970's, fluctuated...
Authors
M.E. Nelson, L.D. Mech
Use of miniroutes and Breeding Bird Survey data to estimate abundance Use of miniroutes and Breeding Bird Survey data to estimate abundance
1. Information on relative abundance is easily obtained and adds greatly to the value of an atlas project. 2. The Breeding Bird Survey (BBS) provides annual counts (birds per 50 roadside stops) that can be used to: (1) map relative abundance by physiographic region within a state or province, (2) map relative abundance on a more local scale by using results from individual routes, or (3)...
Authors
C.S. Robbins, B.A. Dowell
Forest-wildlife management techniques on the Moosehorn National Wildlife Refuge Forest-wildlife management techniques on the Moosehorn National Wildlife Refuge
No abstract available.
Authors
G.F. Sepik, D.M. Mullen, T.J. Dwyer, E.L. Derleth, D.G. McAuley
The eighty-sixth Christmas bird count. 457. Ocean City, MD The eighty-sixth Christmas bird count. 457. Ocean City, MD
No abstract available.
Authors
C.S. Robbins
The eighty-sixth Christmas bird count. Georgia, Florida The eighty-sixth Christmas bird count. Georgia, Florida
No abstract available.
Authors
P.W. Sykes
Effects of body weight and age on the time and pairing of American black ducks Effects of body weight and age on the time and pairing of American black ducks
I used captive young and adult American Black Ducks (Anas rubripes) during October-February 1984-1985 to test whether body weight and age affected time of pair-bond formation. Eighty ducks were marked individually, and 10 ducks (6 males and 4 females, half of each age class) were assigned to each of 8 experimental pens. Ducks in 4 pens received an ad libitum diet of commercial duck food...
Authors
Gary R. Hepp
Nesting of the masked booby on the Dry Tortugas, Florida: The first record for the contiguous United States Nesting of the masked booby on the Dry Tortugas, Florida: The first record for the contiguous United States
In both 1984 and 1985 Masked Boobies (Sula dactylatra) attempted to nest on sandy islets at the Dry Tortugas, Florida. Nesting attempts failed because the nest sites were washed away by summer storms. It seems likely that this species will eventually nest there successfully and will establish a small breeding population. This is the first documented nesting by this species in the...
Authors
R. B. Clapp, W.R. Robertson
A summary of alcid records from Hawaii A summary of alcid records from Hawaii
Abstract.-Four species of alcids have now been recorded frorn Hawaii. Two of them, the Tufted Puffin (Fratercula cirrhata and the Cassin's Auklet (Ptychoramchus aleuticus) have been found only once; the occurrence of the latter is reported here for the first time. two other alcids, the Horned Puffin (Fratercula arctica) and the Parakeet .Auklet (Cyclorrhynchus psittacula) have been...
Authors
R. B. Clapp
Genetic management of captive masked bobwhites Genetic management of captive masked bobwhites
No abstract available.
Authors
R. R. Gabel
California condor recovery program California condor recovery program
No abstract available.
Authors
N.F.R. Snyder