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: 41918
Surfactants as blackbird stressing agents
Applications of wetting-agent solutions produce mortality in birds. The exact cause of death is undetermined but it is believed that destruction of the insulating qualities of the plumage permits ambient cold temperatures and evaporation to lower the body temperature to a lethal level. The original concept of using these materials as bird-control tools was developed in 1958 at the Patuxent Wildlif
Authors
P.W. Lefebvre, J.L. Seubert
Progress of primary feather molt of adult mourning doves in Missouri
The examination of 7,892 adult doves in Missouri between 1953 and 1965 showed that less than 2.5% of adult doves completed their molt before October 1. Adult doves of both sexes began molting their primary feathers during early June in Missouri and lost the last (tenth) primary during the latter half of October. Approximately 140-150 days were required to complete the molt. Thus, early-hatched
Authors
K.C. Sadler, R. E. Tomlinson, H. M. Wight
[Book review] 'Biological Effects of Pesticides in Mammalian Systems,' edited by Herman F. Kraybill
No abstract available.
Authors
L. J. Blus
[Book review] Diseases in Free Living Wild Animals, A. McDiarmid (ed). Academic Press, New York
No abstract available.
Authors
R. M. Kocan
Organochlorine and heavy metal residues in bald eagle eggs
Bald eagle eggs collected in 1968 from nests in Wisconsin, Maine, and Florida all contained residues of DDE, DDD, dieldrin, heptachlor epoxide, and polychlorinated biphenyls. Many also contained traces of DDT. Eggs from five nonproductive nests sampled in Maine contained much higher residues than did eggs collected from either productive or nonproductive nests in Wisconsin and Florida.
Authors
W.C. Krantz, B. M. Mulhern, George E. Bagley, A. Sprunt, F.J. Ligas, W.B. Robertson
Two species of Simuliidae (Diptera), Cnephia ornithophilia and Prosimulium vernale, from Maryland
The finding of Cnephia ornithophilia Davies, Peterson, & Wood and Prosimulium vernale Shewell for the first time at the Patuxent Wildlife Research Center, Laurel, Maryland, is described. Larvae of C. ornithophilia were collected Nov. 15, pupae Feb. 14, and adult flies Feb. 28. No immature or adult specimens were found between Apr. 2 and Nov. 14. The greatest number of immature stages was found in
Authors
I.B. Tarshis, J.N. Stuht