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Page 4172, results 104276 - 104300

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Organochlorines and mercury in osprey eggs from the eastern United States
D. J. Audet, D.S. Scott, Stanley N. Wiemeyer
1992, Journal of Raptor Research (26) 219-224
Organochlorine and mercury concentrations were determined in Osprey eggs collected from Maryland, Virginia, and Massachusetts during 1986-87. DDE concentrations were significantly different among locations. Median DDE concentrations did not decline significantly in eggs from Glenn L. Martin National Wildlife Refuge, Maryland, between 1973 and 1986. The median DDE residue for...
Winter habitat occurrence patterns of temperate migrant birds in Belize
D.K. Dawson, C.S. Robbins, J.R. Sauer
1992, El Pitirre (Society of Caribbean Ornithology) (5) 3-4
We used mist nets and point counts to sample bird populations in 61 sites in Belize during January-March of 1987-1991. Sites were classified as forest, second growth, woody agricultural crops (citrus, mango, cacao, and cashew), or non-woody agricultural crops (rice and sugar cane). We evaluated patterns of occurrence of wintering...
Constraints on productivity of wild Nene or Hawaiian geese Branta sandvicensis
P.C. Banko
1992, Wildfowl (43) 99-106
I investigated constraints on the productivity of wild Nene on Hawaii and Maui during 1978-81. These populations were composed largely of captive-reared birds. Recruitment of young was low. Of 140 breeding attempts, 36% resulted in successful nests and 7% produced fledglings. Annual productivity was limited...
Organochlorines and heavy metals in 17-year cicadas pose no apparent dietary threat to birds
D. R. Clark Jr.
1992, Environmental Monitoring and Assessment (20) 47-54
Organochlorine and heavy metal concentrations in 17-year cicadas from Prince Georges and Anne Arundel Counties, Maryland, were well below levels known to be harmful to birds. Cicadas contained concentrations of metals similar to or less than other local invertebrates except they contained more copper than did earthworms. Copper and lead...
Uptake of environmental contaminants by small mammals in pickleweed habitats at San Francisco Bay, California
D. R. Clark Jr., K.S. Foerster, C. M. Marn, R. L. Hothem
1992, Archives of Environmental Contamination and Toxicology (22) 389-396
Small mammals were live-trapped in pickleweed (Salicornia virginica) habitats near San Francisco Bay, California in order to measure the uptake of several contaminants and to evaluate the potential effects of these contaminants on the endangered salt marsh harvest mouse (Reithrodontomys raviventris). Tissues of house mice (Mus musculus), deer mice (Peromyscus...
Fifty-fifth Christmas Bird Count. 159. Ocean City, Md
C.J. Pennycuick, C.E. Heine, S.J. Kirkpatrick, M.R. Fuller
1992, Journal of Experimental Biology (165) 1-19
The distribution of dynamic pressure behind a Harris' hawk's wing was sampled using a wake rake consisting of 15 pitot tubes and one static tube. The hawk was holding on to a perch, but at an air speed and gliding angle at which it was capable of gliding. The perch...
Variations in the fine-scale composition of a central Pacific ferromanganese crust: Paleoceanographic implications
J.R. Hein, W.A. Bohrson, M. S. Schulz, M. Noble, D.A. Clague
1992, Paleoceanography and Paleoclimatology (7) 63-77
A 47- to 60-mm-thick Fe-Mn crust from Horizon Guyot (water depth 1800–1780 m), central Pacific, was used to evaluate the potential of crusts as recorders of Neogene paleoceanographic and paleoclimatic conditions. The chemical composition was determined by microprobe for 16 elements from a polished thin section. Three analyses were made...
Trends and management of wolf-livestock conflicts in Minnesota
S. H. Fritts, W.J. Paul, L.D. Mech, D.P. Scott
1992, Resource Publication 181
The nature and extent of wolf-livestock conflicts in Minnesota during 1975-86 was studied as part of a wolf depredation control program. The level of wolf (Canis lupus) depredation on livestock in Minnesota, as determined from the total number of complaints verified annually during 1975-86, showed a slight upward trend but...
An evaluation of regression methods to estimate nutritional condition of canvasbacks and other water birds
D. W. Sparling, J.A. Barzen, J.R. Lovvorn, J.R. Serie
1992, Biological Report 3
Regression equations that use mensural data to estimate body condition have been developed for several water birds. These equations often have been based on data that represent different sexes, age classes, or seasons, without being adequately tested for intergroup differences. We used proximate carcass analysis of 538 adult...
Tonatia carrikeri
Timothy J. McCarthy, Alfred Gardner, Charles O. Handley Jr.
1992, Mammalian Species (407) 1-4
No abstract available....
Effects of aerial applications of esfenvalerate on small mammals and birds in Douglas-fir seed orchards
L. J. Blus, Charles J. Henny, C.P. Rice, R. A. Grove
1992, Report
Although no adverse effects were documented, this study did not provide data sufficient to adequately test for effects of aerial spraying of esfenvalerate on small mammal populations or nesting of birds in Douglas-fir seed orchards. Small mammal trapping data were too sparse to provide statistical testing with reasonable power. Residues...
The mating behavior of Iguana iguana
G.H. Rodda
1992, Smithsonian Contributions to Zoology No. 534
Over a 19 month period I observed the social behaviors of individually recognized green iguanas, Iguana iguana, at three sites in the llanos of Venezuela. The behavior of iguanas outside the mating season differed from that seen during the mating season in three major ways: (1) during normal waking hours...
Diflubenzuron Hazards to Fish, Wildlife and Invertebrates: A Synoptic Review
R. Eisler
1992, Contaminant Hazard Reviews Report 25 ; Biological Report 4
Diflubenzuron (1(4chlorophenyl)3(2,6difluorobenzoyl)urea), also known as dimilin, is a potent broad spectrum insect growth regulator that interferes with chitin synthesis at time of molting and is effective in controlling immature stages of insects. Diflubenzuron was approved for domestic use in 1976 to control gypsy moth (Lymantria dispar), and in 1979...
Status and Assessment of Chesapeake Bay Wildlife Contamination
G. H. Heinz, Stanley N. Wiemeyer, D. R. Clark Jr., P.H. Albers, P. Henry, R.A. Batiuk
1992, Environmental Protection Agency, Chesapeake Bay Program CBP/TRS 80/92, 903-R-92-100
As an integral component of its priority setting process, the Chesapeake Bay Program`s Toxics Subcommittee has sought the expertise of Chesapeake Bay researchers and managers in developing a series of Chesapeake Bay toxics status and assessment papers. In the report, evidence for historical and current contaminant effects on key bird...
Field Research Panel - Reptiles
R.W. McDiarmid, D.E. Scott, A.D. Tucker
Dorcas O. Schaeffer, Kevin M. Kleinow, Lee Krulisch, editor(s)
1992, Book chapter, The care and use of amphibians, reptiles and fish in research: proceedings from a SCAW/LSUSVM sponsored conference, held April 8-9, 1991 in New Orleans, Louisiana