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: 41763
Observations on the nasal mites of the eastern brown-headed cowbird (Molothrus ater ater)
No abstract available.
Authors
G. M. Clark
Annual production of a cottontail population
Adult females in a cottontail (Sylvilagus floridanus) population produced seven or eight litters during the 1961 breeding season. A synchrony of the conception dates was maintained throughout the breeding season. Data about ovulation rate, prenatal mortality, and litter size for each litter are presented. The first litter was smallest, averaging about three young, and the remaining litters ranged
Authors
C.N. Conaway, H. M. Wight, K.C. Sadler
Disease and infection in the Tetraonidae
Disease is one of many factors advanced to explain the fluctuations of grouse populations, but no profound study of natural disease losses in Tetraonidae exists. The literature contains frequent references to THE grouse disease, although many potential pathogens are listed in numerous surveys and limited investigations, and the relevant data indicate that no single etiologic agent is universally r
Authors
C. M. Herman
Multicentric neurofibrosarcoma in a Canada goose, Branta canadensis
No abstract available.
Authors
L. N. Locke
A survey of fungi associated with lesioned and chlorotic sago pondweed (Potamogeton pectinatus)
Isolations from 1000 Potamogeton pectinatus plants collected from six major stands in Back Bay, Virginia and 13 in Currituck Sound, North Carolina yielded Pythium spp. consistently and in relatively high frequency. Although specific determination of these isolates was unsuccessful, they were separated into three groups according to morphological and cultural characteristics. Rhizoctonia solani Kue
Authors
R.D. Lumsden, D.E. Ellis, J.L. Sincock
Inventory of waterfowl environments of prairie Canada
No abstract available.
Authors
J.J. Lynch, C.D. Evans, V.C. Conover
Nesting ecology and habits of the Dickcissel on the Arkansas Grand Prairie
No abstract available.
Authors
B. Meanley
Band loss by nestling mourning doves
Nestling mourning doves (Zenaidura macroura) were banded and checked for band loss prior to fledging at Parchman, Mississippi, during the months of June-August, 1960. Three hundred seventy-seven nestlings 4-6 days of age were banded, 117 with size 3 bands, 120 with size 3A bands, and 140 with size 3A bands secured by Dalzoflex tape. Two hundred twenty nestlings 7-9 days of age were banded, 114 wit
Authors
C.F. Kaczynski, W.H. Kiel
Pre-nesting activity of the purple gallinule near Savannah, Georgia
Observations on the pre-nesting activity of the Purple Gallinule (Porphyrula martinica) were made by me at the Savannah National Wildlife Refuge, Jasper County, South Carolina from 9 to 16 April 1960, 12 to 23 April 1961, and 28 to 30 April 1963. Jasper County is in extreme southeastern South Carolina. The Refuge headquarters is approximately 10 miles (16 km) up the Savannah River from the port of
Authors
Brooke Meanley