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: 41772
Is Cnephia invenusta (Walker) a possible important vector of Leucocytozoon in Canada geese?
No abstract available.
Authors
I.B. Tarshis, C. M. Herman
Natal plumage characters in rails
The downy young of the Clapper Rail (Rallus longirostris), King Rail (Rallus elegans), and Virginia Rail (Rallus limicola) are described as totally black in all literature examined by us. Wetherbee (Bird-Banding, 32: 141-159, 1961) noted that some neonates of Virginia Rail from Storrs, Connecticut, had patches of white down below the wings. "Neonatal" pertains to the developmental condition or c
Authors
D.K. Wetherbee, B. Meanley
A method for estimating fall adult sex ratios from production and survival data
This paper presents a method of utilizing data relating to the production and survival of a bird population to estimate a basic fall adult sex ratio. This basic adult sex ratio is an average value derived from average production and survival rates. It is an estimate of the average sex ratio about which the fall adult ratios will fluctuate according to annual variations in production and survival.
Authors
H. M. Wight, R.G. Heath, A. D. Geis
Epizootiologic studies on filarioids of the raccoon
Filarioid worms (Dirofilaria immitis, D. tenuis, Dipetalonema procyonis, and D. llewellyni) were discovered in raccoons (Procyon lotar) in Maryland. Raccoons were trapped in lowland, upland, and agricultural-residential areas, which were further classified as stream borders, poorly drained, and well drained. Data on incidence of D. llewellyni were analyzed on basis of host distribution within th
Authors
C. M. Herman, D.L. Price
Twenty-ninth breeding-bird census: Coastal lowland mixed woods (Delaware)
No abstract available.
Authors
J. T. Linehan
Twenty-ninth breeding bird census: Salt marsh edge (Delaware)
No abstract available.
Authors
J. T. Linehan
Additional records of aspergillosis among passerine birds in Maryland and the Washington, DC metropolitan area
Two cases of aspergillosis involving four adult cowbirds (Molothrus ater) collected during the nesting season are reported. Aspergillosis was found in house sparrows (Passer domesticus) on two occasions.
Authors
L. N. Locke
Occurrence of the fluke, Procyotrema marsupiformis Harkema and Miller, 1959, in a Maryland raccoon
No abstract available.
Authors
L. N. Locke, E. E. Brown