Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16784
The effects on systematics of proposed regulations on animal importations
No abstract available.
Authors
R.C. Banks
Optimal exploitation strategies for an animal population in a stochastic serially correlated environment
Optimal exploitation strategies were studied for an animal population in a stochastic, serially correlated environment. This is a general case and encompasses a number of important cases as simplifications. Data on the mallard (Anas platyrhynchos) were used to explore the exploitation strategies and test several hypotheses because relatively much is known concerning the life history and general
Authors
D.R. Anderson
Proceedings of the ninety-first stated meeting of the American Ornithologists' Union
The Ninety-first Stated Meeting of the American Ornithologists' Union was held 8-12 October 1973 at Provincetown, on Cape Cod, Massachusetts, under the sponsorship of the Nuttall Ornithological Club, which was celebrating its centennial year. Business, technical, and social sessions were held in the Provincetown Inn. Field trips were taken to various localities on Cape Cod.
Authors
R.C. Banks
Retraction of a longevity record for a 36-year-old herring gull
The longevity record for a 36-year-old Herring Gull, Larus argentatus (Pettingill 1967, Auk 84: 123), is erroneous. Herring Gull with band number A-676871, the basis of the record, was found dead on 20 June 1966 on the shore of Little Traverse Bay near Petoskey, Michigan, and reported to the Bird Banding Laboratory. The laboratory then mistakenly advised Pettingill that this gull was banded by him
Authors
G.M. Jonkel, O.S. Pettingill
Salmonella typhimurium from a Maryland mourning dove
No abstract available.
Authors
R. M. Kocan, L. N. Locke
The seventy-fourth Christmas bird count. [Untitled. Summary for Delaware, Maryland, District of Columbia, and Virginia]
No abstract available.
Authors
D.R. Bystrak
Reproductive responses of white leghorn hens to graded concentrations of mercuric chloride
White Leghorn hens were maintained on diets containing 0, 4, 12 or 36 p.p.m. Hg as HgCl2 from hatching in an effort to confirm (with a second species) our previously reported effects on Japanese quail reproduction. In the quail study both onset of laying and rate of egg production were accelerated by 16 and 32 p.p.m. Hg as HgCl2, but ferti ity was depressed. After 1 year on diets containing HgCl
Authors
E. F. Hill, C.S. Shaffner
Progress report on the North American Breeding Bird Survey
The Breeding Bird Survey has been monitoring bird population changes in the U.S.A. and Canada since 1966. Each cooperator makes 50 3-minute stops at 0.8-km intervals along randomly selected roadside routes in 4 to 4 1/2 hours on one morning in June of each year. Data from the 1500 to 1600 routes are entered on magnetic tape, edited for accuracy, and then used for statistical analysis of population
Authors
C.S. Robbins, W.T. Van Velzen
Salmonellosis in a captive heron colony
Salmonellosis caused by Salmonella typhimurium was one of several factors responsible for losses among young herons being held at the Patuxent Wildlife Research Center. The infection was demonstrated in five black-crowned night herons (Nycticorax nycticorax), three common egrets (Casmerodius albus), two little blue herons (Florida caerulea), one cattle egret (Bubulcus ibis), one snowy egret (Leuco
Authors
L. N. Locke, H. M. Ohlendorf, R.B. Shillinger, T. Jareed