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Marsha Sovada
Northern Prairie Research Center — Provides results of a systematic survey of swift fox (Vulpes velox) distribution in western Kansas, USA, and describes the use of Markov chain Monte Carlo (MCMC) image restoration to rectify problems with map accuracy. Glen A. Sargeant, Marsha A. ...More…
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Jan L. Eldridge
Northern Prairie Research Center — Examines use of stored fat by adult male and female Baird's, Semipalmated, and White-rumped Sandpipers during their spring stopovers in eastern North Dakota. Gary L. Krapu, Jan L. Eldridge, Cheri L. Gratto-Trevor, and Deborah A. Buhl Key words: ...More…
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Jill A. Shaffer
Northern Prairie Research Center — Investigates the effect of vegetation structure on the density and nesting success of 3 grassland-nesting birds: clay-colored sparrow (Spizella pallida), Savannah sparrow (Passerculus sandwichensis), and bobolink (Dolichonyx oryzivorus) in 3 ...More…
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Todd A. Grant
Northern Prairie Research Center — Examines nest survival as a function of nest age and date in Clay-colored Sparrows (Spizella pallida) and Vesper Sparrows (Pooecetes gramineus) breeding in north-central North Dakota using the logistic-exposure method. Todd A. Grant, Terry L. ...More…
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Mary Ann Cunningham
Northern Prairie Research Center — Examines the influences of tree cover at both proximate and landscape scales on grassland birds, a group of birds of high conservation concern, in the Sheyenne National Grassland in North Dakota, USA. Abstract: Ecologists increasingly recognize ...More…
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Jill A. Shaffer
Northern Prairie Research Center — Tests the spatial and temporal repeatability of the influence of patch size and landscape composition on density and nesting success of 3 grassland passerines in 3 regions of the northern tallgrass prairie in Minnesota and North Dakota, ...More…
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Randy W. Renner
Northern Prairie Research Center — Investigates patterns and causes of variation in clutch sizes in a guild of five species of temperate-nesting dabbling ducks (Mallard, Northern Pintail, Gadwall, Blue-winged Teal, and Northern Shoveler) during 1993-1995 in the Prairie Pothole ...More…
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Ann L. Dahl
Northern Prairie Research Center — Studies mallard (Anas platyrhynchos) and gadwall (A. strepera) nesting on constructed islands in North Dakota in 1996 and 1997 to evaluate factors--particularly amount of perennial grass cover in the surrounding landscape and density of breeding ...More…
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Determinants of Breeding Distributions of Ducks
Northern Prairie Research Center — A 1988 monograph on settling patterns of 10 North American duck species Johnson, Douglas. H. and James W. Grier. 1988. Determinants of breeding distributions of ducks. Wildlife Monographs 100:1-37. Breeding-season Distribution, Wintering Areas, ...More…
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Wolf-Bison Interactions in Yellowstone National Park
Northern Prairie Research Center — An account of interactions of reintroduced wolves (Canis lupus) with bison (Bison bison) in Yellowstone National Park We studied interactions of reintroduced wolves (Canis lupus) with bison (Bison bison) in Yellowstone National Park. Only 2 of 41 ...More…
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Winter Severity and Wolf Predation on
Northern Prairie Research Center — Describes a study of wolf predation on elk in Yellowstone National Park under severe (1997) and mild (1998) winter conditions 2-3 years after wolves were reintroduced to the park We studied wolf (Canis lupus) predation on elk (Cervus elaphus) in ...More…
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Species Composition and Trophic Structure of
Northern Prairie Research Center — A comparison of species composition and community structure of insects among habitats in the coastal and central prairie in Texas Species composition and trophic structure of the insect community were compared between coastal and central prairies ...More…