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Some Bayesian statistical techniques useful in estimating frequency and density
Douglas H. Johnson
1977, Special Scientific Report - Wildlife 203
This paper presents some elementary applications of Bayesian statistics to problems faced by wildlife biologists. Bayesian confidence limits for frequency of occurrence are shown to be generally superior to classical confidence limits. Population density can be estimated from frequency data if the species is sparsely distributed relative to the size...
Analysis and machine mapping of the distribution of band recoveries
L.M. Cowardin
1977, Special Scientific Report - Wildlife 198
A method of calculating distance and bearing from banding site to recovery location based on the solution of a spherical triangle is presented. X and Y distances on an ordinate grid were applied to computer plotting of recoveries on a map. The advantages and disadvantages of tables of recoveries by...
The display flight of The North American Ruddy Duck
M. R. Miller, R.M. McLandress, B.J. Gray
1977, The Auk (94) 140-142
Sexual behavior of the North American Ruddy Duck (Oxyura jamaicensis), as summarized by Johnsgard (1965: 323-327), includes a display variously referred to as the ringing rush (Johnsgard 1965: 325; 1967), ring rush (Johnsgard 1966), and/or display flight (Johnsgard 1966, 1967), which males perform as a short rush across the water...
Effect on tricaine methanesulfonate (MS-222) on hematocrit values in rainbow trout (Salmo gairdneri)
G. L. Reinitz, J. Rix
1977, Comparative Biochemistry and Physiology, Part C: Comparative Pharmacology (56) 115-116
1. Anesthesia of rainbow trout (Salmo gairdneri) with 70 ppm tricaine methanesulfonate (MS-222) for 3-9 min resulted in a linear increase in hematocrit.2. Handling of unanesthetized trout caused a higher and more variable hematocrit reading than did exposure to MS-222 for up to 3 min.3. The range and standard error...
Energy allocation patterns of a sprouting and nonsprouting species of Arctostaphylos in the California chaparral
Jon E. Keeley, Sterling C. Keeley
1977, American Midland Naturalist (98) 1-10
The r- and K-selection theory was used to generate testable hypotheses about patterns of energy allocation in two chaparral shrubs of different reproductive strategies. Terminal-branchlet vegetative and reproductive biomass of the nonsprouting Arctostaphylos glauca and the sprouting A. glandulosa were sampled in a 23-year-old and a 90-year-old stand of chaparral...
Differences in swimming performance among strains of rainbow trout (Salmo gairdneri)
A.E. Thomas, M.J. Donahoo
1977, Journal of the Fisheries Research Board of Canada (34) 304-307
Swimming performance profiles, relating fish size to swimming time, were established for three strains of rainbow trout (Salmo gairdneri). No differences were found in slope of regressions; only in level at each size of fish. Swimming performances of New Zealand and Sand Creek strains did not differ, but were superior...
Salmonella enteritidis and Arizona hinshawii isolated from wild sandhill cranes
R. M. Windingstad, D.O. Trainer, R. M. Duncan
1977, Avian Diseases (21) 704-707
Salmonella enteritidis serotype Rubislaw and Arizona hinshawii were isolated from cloacal swabs of "healthy" live-trapped sandhill cranes (Grus canadensis tabida) in Indiana and Wisconsin. These respective isolations were the first reported from wild sandhill cranes....