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
Brain cholinesterase inhibition in songbirds from pecan groves sprayed with phosaline and disulfoton Brain cholinesterase inhibition in songbirds from pecan groves sprayed with phosaline and disulfoton
Brain cholinesterase (ChE) activities of songbirds collected in pecan groves 6 to 7 hr after separate applications of the organophosphorus pesticides, phosalone and disulfoton, were compared to mean ChE activities of controls (normals) as a measure of insecticide exposure. In general, reduction of brain ChE activity ≥2 standard deviations below the control mean indicates exposure to an
Authors
Donald H. White, J.T. Seginak
Statistical inference for capture-recapture experiments Statistical inference for capture-recapture experiments
This monograph presents a detailed, practical exposition on the design, analysis, and interpretation of capture-recapture studies. The Lincoln-Petersen model (Chapter 2) and the closed population models (Chapter 3) are presented only briefly because these models have been covered in detail elsewhere. The Jolly- Seber open population model, which is central to the monograph, is covered in...
Authors
Kenneth H. Pollock, James D. Nichols, Cavell Brownie, James E. Hines
Experimental September duck hunting seasons and the survival of wood ducks in Kentucky and Tennessee Experimental September duck hunting seasons and the survival of wood ducks in Kentucky and Tennessee
No abstract available.
Authors
J.R. Sauer, J.S. Lawrence, E.L. Warr, G.W. Cook, V.R. Anderson
Owls Owls
Eight species of owls regularly occur and may breed in one or more of the southeastern states. Several additional northern or western species appear irregularly as accidentals or during years of southward incursions. In the Southeast, the most common and wide- spread owls are the common barn-owl, eastern screech-owl, great horned owl and barred owl; the most restricted is the burrowing...
Authors
D.G. Smith, D. H. Ellis, B.A. Millsap
Cryogenic preservation of semen from the Aleutian Canada goose (Branta canadensis leucopareia) Cryogenic preservation of semen from the Aleutian Canada goose (Branta canadensis leucopareia)
Aleutian Canada geese (Branta canadensis leucopareia) were inseminated with frozen-thawed semen containing 6% or 7% dimethylsulfoxide (DMSO) resulting in 32 fertile eggs and 17 goslings; with 7% DMSO, 19 of 31 eggs were fertile. Beltsville Poultry Semen Extender (BPSE), adjusted to 270 ± 30 mOs and 7.5 ± 0.4 pH, was used to dilute semen samples and the DMSO before cryopreservation. About...
Authors
G.F. Gee, Thomas J. Sexton
Breeding biology of the spotted salamander Ambystoma maculatum (Shaw) in acidic temporary ponds at Cape Cod, USA Breeding biology of the spotted salamander Ambystoma maculatum (Shaw) in acidic temporary ponds at Cape Cod, USA
The relationship between water chemistry and breeding success of spotted salamanders Ambystoma maculatum (Shaw) was examined in temporary woodland ponds on outer Cape Cod, Massachusetts in 1985 and 1986. Most pond waters were dilute (3median coductivity = 57 umhos cm−1 (1 umhos cm−1 = 0·1 mSm−1)), acidic (median pH = 4·82), and highly colored (median = 140 Pt-Co units). Most acidity was...
Authors
J. W. Portnoy
The ninetieth Christmas bird count. Georgia, Florida The ninetieth Christmas bird count. Georgia, Florida
No abstract available.
Authors
P.W. Sykes
In memoriam, Erma J. Fisk (1905-1990) In memoriam, Erma J. Fisk (1905-1990)
No abstract available.
Authors
C.S. Robbins