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
Organochlorine and mercury residues in snakes from Pilot and Spider Islands, Lake Michigan--1978
No abstract available.
Authors
G. H. Heinz, S. D. Haseltine, R.J. Hall, A. J. Krynitsky
Additional records of black-legged kittiwakes from the northwestern Hawaiian Islands
No abstract available.
Authors
R. B. Clapp, C.S. Robbins, K.W. Kenyon
Canine tooth wear in captive little brown bats
Upper canine teeth of little brown bats Myotis lucifugus lucifugus held in stainless steel wire mesh cages underwent severe wear which exceeded that observed previously in caged big brown bats, Eptesicus fuscus fuscus. This suggests a relationship between amount of wear and size of the caged bats with damage increasing as size decreases. Rapid wear of canine teeth by little brown bats resembled th
Authors
Donald R. Clark
Organochlorine residues in eggs of loggerhead and green sea turtles nesting at Merritt Island, Florida--July and August, 1976
Eggs from nine clutches of loggerhead turtles (Caretta caretta) and two clutches of green turtles (Chelonia mydas) were collected as they were laid on Merritt Island, Florida. Eggs were incubated, frozen, and analyzed for organochlorines. Levels of DDE and PCB, the major contaminants, averaged less than 0.08 ppm in loggerhead eggs and were even lower in green turtle eggs. These concentrations are
Authors
D. R. Clark, A. J. Krynitsky
New black-crowned night heron colony found in Rhode Island
No abstract available.
Authors
T. W. Custer, J.E. Myers, C.C. Allin
Response of captive, breeding mallards to oiled water
No abstract available.
Authors
T. W. Custer, P.H. Albers
The influence of hunger on meal to pellet intervals in barred owls
1. Barred owls fed at a sub-maintenance (SM) level had significantly (P < 0.01) longer meal to pellet intervals (MPI)/g eaten/kg body weight (BW) than those fed at an above maintenance (AM) level; MPI/g per kg for owls fed at a maintenance (M) level was intermediate but significantly (P < 0.01) different from both SM and AM.2. During SM feeding, MPI/g per kg gradually increased.3. The proportion o
Authors
G.E. Duke, M.R. Fuller, B.J. Huberty
Distribution, species abundance, and nesting-site use of Atlantic coast colonies of herons and their allies
In 1975 and 1976, eight teams of investigators located 262 colonies of nesting herons and their allies along the Atlantic coast from Florida to Maine. Fourteen species were found in Florida, numbers decreasing to seven in Maine. Colonies censused in the extreme south and north of the study area were lower in number of species and number of adults than those in the intermediate area. More than 90%
Authors
Thomas W. Custer, Ronald G. Osborn, W.F. Stout