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185099 results.

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Page 6145, results 153601 - 153625

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Record confirmed of Bahama woodstar in Florida
H.P. Langridge, P.W. Sykes Jr.
1974, The Auk (91) 849-849
We reported a Bahama Woodstar (Calliphlox evelynae) at Lantana, Florida, 26 August through 13 October 1971 (1972, Amer. Birds 26: 52). At that time, there was reservation by some about the identification. Colored slides taken of the bird at roost were subsequently examined by James Bond and Frank B. Gill,...
The winter bird survey of central Maryland, U.S.A
C.S. Robbins, D. Bystrak
1974, Acta Ornithologica (14) 254-271
A method for monitoring changes in winter bird populations was tested in central Maryland in the winters of 1970, 1971 and 1972. A systematic sample of 41 transects was established to sample an area of 6150 sq. km. Each transect, located at the center of a standard 7 1/2-minute topographic...
The breeding bird atlas of Montgomery County, Maryland, USA
M. K. Klimkiewicz, C.S. Robbins
1974, Acta Ornithologica (14) 446-458
A two-year Breeding Bird Atlas program for Montgomery County was undertaken by the Maryland Ornithological Society in 1971-1972. The county was divided into 65 5 km blocks and each block was assigned to an observer. Preliminary results show 46 to 93 species (mean 66) recorded per 5 km...
Percutaneous absorption of several chemicals, some pesticides included, in the red-winged blackbird
J.G. Rogers Jr., R.H. Cagan, M.R. Kare
1974, Environmental Physiology and Biochemistry (4) 104-111
Percutaneous absorption in vivo through the skin of the feet of the red-winged blackbird (Agelaius phoeniceus) has been investigated. Absorption after 18-24 hours exposure to 0.01 M solutions of salicylic acid, caffeine, urea, 2,4-D, dieldrin, diethylstilbesterol, and DDT was measured. Of these, only DDT and diethylstilbesterol were not...
Relationships between chemical structure and rat repellency: II. compounds screened between 1950 and 1960
Walter A. Bowles, V. A. Adomaitis, J.B. DeWitt, J.J. Pratt Jr.
1974, Technical Report 75-11-FEL.
Over 4,600 compounds, chiefly organic types, were evaluated using both a food acceptance test (Part A) and a barrier penetration bioassay (Part B), to correlate relationships between chemical structure and rodent repellency. These chemicals are indexed and classified according to the functional groups present and to the degree of substitution...
Ornithological studies
M. K. Klimkiewicz
1974, Book chapter, Terrestrial ecology studies and monitoring program of Douglas Point nuclear generating site
Environmental effects
D. coordinator Pimentel coordinator, E. Kenaga, F.W. Slife, H. Mooney, R.E. Odum, L. Stickel
1974, Book chapter, Herbicide Report. Chemistry and Analysis, Environmental Effects, Agriculture and other Applied Uses
Recoveries of banded Laysan albatrosses (Diomedea immutabilis) and black-footed albatrosses (D. nigripes)
C.S. Robbins, D.W. Rice
Warren B. King, editor(s)
1974, Book chapter, Pelagic Studies of Seabirds in the Central and Eastern Pacific Ocean
Summarizes the seasonal distribution of pelagic recoveries of 324 banded Laysan Albatrosses and 399 banded Black-footed Albatrosses. Different age groups of each species concentrate in somewhat different areas, and, although range overlap between species is almost complete, each has its own distinctive seasonal distribution pattern....
Monitoring bird population trends
C.S. Robbins
John P. Slusher, Thomas M. Hinckley, editor(s)
1974, Book chapter, Timber-Wildlife Management Symposium Proceedings.
The Breeding Bird Survey monitors annually the breeding populations of nearly 500 bird species by means of 2,000 random roadside counts of fifty 3-minute stops each. Results are computer-analyzed by State and Province, physiographic and geographic regions, and for the entire continent. Short- and long-term population changes are...