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: 41778
Great blue herons respond to nesting habitat loss
No abstract available.
Authors
C. J. Henny, J.E. Kurtz
Embryotoxic effects of crude oil in mallard ducks and chicks
Recent studies in this laboratory have revealed that surface applications of microliter amounts of some crude and fuel oils that coat less than 10% of the egg surface reduce hatching considerably in different avian species. Applications of paraffin compounds that coat equal areas of the egg surface do not reduce hatching suggesting that toxicity is due to causes other than asphyxia. In the present
Authors
David J. Hoffman
The effects of ingested petroleum on oviposition and some aspects of reproduction in experimental colonies of mallard ducks (Anas platyrhynchos)
Compared to unmated mallard ducks fed an uncontaminated diet, unmated birds given food contaminated with 3 ml South Louisiana crude oil per 100 g dry weight showed an 84% decline in the daily rate of oviposition, a 33% decrease in egg-shell thickness and at autopsy more than 82% of the ovarian mass consisted of atretic follicles. Similar studies on groups of mated females showed that although the
Authors
W. N. Holmes, K.P. Cavanaugh, J. Cronshaw
Organochlorine residues, eggshell thickness, and nest success in barn owls from the Chesapeake Bay
Eggs of barn owls (Tyto alba) were collected from 18 nests in offshore duck blinds on the Maryland side of the lower Potomac River estuary in 1972 and 1973 and analyzed for organochlorine residues. DDE was found in 100% of the clutches, PCBs in 89%, and dieldrin in 78%. Eggshell thickness was inversely correlated with concentrations of DDE, DDD, and dieldrin residues. Six of the 18 clutches had me
Authors
E. E. Klaas, Stanley N. Wiemeyer, H. M. Ohlendorf, D. M. Swineford
Some effects of ingested petroleum on seawater-adapted ducks (Anas platyrhynchos)
Male Pekin ducks adapted to seawater and maintained under sheltered conditions (27?C) in the laboratory may consume considerable volumes of petroleum without showing overt symptoms of distress. Under these conditions, birds consuming petroleum-contaminated food have shown a persistent hyperphagia; this was most apparent among those given food contaminated with South Louisiana crude oil, least appa
Authors
W.N. Holmes, J. Cronshaw, J. Gorsline
Shell thinning and pesticide residues in Texas aquatic bird eggs, 1970
Significant decreases in eggshell thickness were found in 15 of 22 species of aquatic birds in Texas in 1970. Shell thickness reductions of 9 to 15 percent were found in white pelicans (Pelecanus erythrorhynchos), brown pelicans (P .occidentalis), and great blue herons (Ardea herodias). DDT family compounds were found in all eggs, and mean residues ranged from 0.4 ppm in white ibis (Eudocimus al
Authors
K. A. King, Edward L. Flickinger, H. H. Hildebrand
The breeding ecology of sea birds on Monito Island, Puerto Rico
Monito Island, a 15-ha plateau surrounded by steep undercut cliffs, lies halfway between Puerto Rico and the Dominican Republic. Seven of the 9 sea birds are known to breed, and 2 (Blue-faced Booby and Laughing Gull) are here recorded as breeders in Puerto Rico for the first time. The Pelecaniformes are represented by 5 species, the White-tailed Tropicbird, the 3 pan-tropical boobies, and the Ma
Authors
C.B. Kepler
Status and nesting of the yellow-billed cuckoo in Puerto Rico
Knowledge of the status of the Yellow-billed Cuckoo (Coccyzus americanus) in the Greater Antilles has been clouded by the bird's elusive behavior and spotty distribution on the islands, and by a major movement of North American migrants through the area to and from their wintering grounds in South America. Although Bond (1956) states that they breed in the Greater Antilles, nests are known only fr
Authors
Cameron B. Kepler, Angela K. Kepler
The sea birds of Culebra and its adjacent islands, Puerto Rico
No abstract available.
Authors
C.B. Kepler, A.K. Kepler
Standard abbreviations for common names of birds
No abstract available.
Authors
M. K. Klimkiewicz, C.S. Robbins