Search Results - "Nagy, John A"

Fast carnivores and slow herbivores: differential foraging strategies among grizzly bears in the Canadian Arctic by Edwards, Mark A, Derocher, Andrew E, Hobson, Keith A, Branigan, Marsha, Nagy, John A

“…Categorizing animal populations by diet can mask important intrapopulation variation, which is crucial to understanding a species' trophic niche width. To test…”
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Home range size variation in female arctic grizzly bears relative to reproductive status and resource availability by Edwards, Mark A, Derocher, Andrew E, Nagy, John A

“…The area traversed in pursuit of resources defines the size of an animal's home range. For females, the home range is presumed to be a function of forage…”
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Subpopulation structure of caribou (Rangifer tarandus L.) in arctic and subarctic Canada by Nagy, John A, Johnson, Deborah L, Larter, Nicholas C, Campbell, Mitch W, Derocher, Andrew E, Kelly, Allicia, Dumond, Mathieu, Allaire, Danny, Croft, Bruno

“…Effective management and conservation of species, subspecies, or ecotypes require an understanding of how populations are structured in space. We used…”
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Low site fidelity and home range drift in a wide-ranging, large Arctic omnivore by Edwards, Mark A., Nagy, John A., Derocher, Andrew E.

“…Space use by animals can provide insight into the habitats in which they live. In predictable landscapes where high-quality habitat is distributed…”
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Growth in Skull Length and Width of the Arctic Wolf: Comparison of Models and Ontogeny of Sexual Size Dimorphism by LARTER, NICHOLAS C., NAGY, JOHN A., BARTAREAU, TAD M.

“…We compared four classical nonlinear growth curves (Gompertz, Logistic, Richards, and von Bertalanffy) in modeling observed skull condylobasal length and…”
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Northwest passages: conservation genetics of Arctic Island wolves by Carmichael, Lindsey E, Krizan, Julia, Nagy, John A, Dumond, Mathieu, Johnson, Deborah, Veitch, Alasdair, Strobeck, Curtis

“…Wolves in the Canadian Arctic Archipelago face several challenges to persistence: a harsh habitat, an unstable prey base, and potentially significant…”
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Potential Spatial Overlap of Heritage Sites and Protected Areas in a Boreal Region of Northern Canada by LEROUX, SHAWN J, SCHMIEGELOW, FIONA K.A, NAGY, JOHN A

“…Under article 8-J of the Convention on Biological Diversity, governments must engage indigenous and local communities in the designation and management of…”
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Monozygotic Twin Wolves with Divergent Life Histories by Carmichael, Lindsey, Nagy, John A., Strobeck, Curtis

“…Genetic evidence for monozygotic (identical) twinning in mammalian species is rare in the literature. Here we report what may be the first pair of monozygotic…”
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Using Subpopulation Structure for Barren-Ground Grizzly Bear Management by Edwards, Mark A, Nagy, John A, Derocher, Andrew E

“…The subpopulation is an intermediate level of organization that is ecologically meaningful for research and management. We used location data (n =  1,235) from…”
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Differences in radionuclide and heavy metal concentrations found in the kidneys of barren-ground caribou from the western Northwest Territories 1994/95 to 2000/01 by Larter, Nicholas C., Nagy, John A., Elkin, Brett T., Macdonald, Colin R.

“…Aluminum, nickel, cadmium, mercury, and lead concentrations were measured in the kidney tissue of known aged barren-ground caribou wintering in the western…”
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Seasonal and annual variability in the quality of important forage plants on Banks Island, Canadian High Arctic by Larter, Nicholas C., Nagy, John A.

“…In vitro acid‐pepsin digestibility (IVDMD), crude protein (CP), fibre, lignin, and energy content were measured for a variety of forage plants collected…”
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Calf Production, Calf Survival, and Recruitment of Muskoxen on Banks Island during a Period of Changing Population Density from 1986-99 by Larter, Nicholas C., Nagy, John A.

“…Population estimates for muskoxen (Ovibos moschatus) (age > 1 year) on Banks Island increased from 29 168 (SE 2104) in 1985 to a peak of 64 608 (SE 2009) in…”
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COPPER STATUS OF MUSKOXEN: A COMPARISON OF WILD AND CAPTIVE POPULATIONS by Barboza, Perry S., Rombach, Emmajean P., Blake, John E., Nagy, John A.

“…We compared wild muskoxen (Ovibos moschatus) on Banks Island (Northwest Territories, Canada) with captive animals maintained on grass (Bromus sp.) hay and…”
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Overwinter Changes in the Urine Chemistry of Muskoxen from Banks Island by Larter, Nicholas C., Nagy, John A.

“…The levels of various metabolites in urine have been used to assess winter nutritional deprivation in cervids; however, few studies have assessed this…”
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Population demography of high arctic caribou on Banks and Melville Islands by Nicholas C. Larter, John A. Nagy

“…Caribou numbers, Rangifer tarandus pearyi, (excluding calves) on Banks Island were estimated (standard error of the estimate) at 1005 (SE±133) in 1992, 709…”
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George Washington Spymaster by Nagy, John A

“…This chapter contains sections titled: List of Further Readings…”
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Does seasonal variation in forage quality influence the potential for resource competition between muskoxen and Peary caribou on Banks Island? by Nicholas C. Larter, John A. Nagy, David S. Hik

“…Inter- and intra-annual variation in forage quality may influence population dynamics of Peary caribou and muskoxen on Banks Island. From 1993 to 1998 we…”
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Overwinter changes in urea nitrogen:creatinine and cortisol:creatinine ratios in urine from Banks Island Peary caribou by Nicholas C. Larter, John A. Nagy

“…Over 200 snow urine samples were collected from Banks Island Peary caribou between March 1993 and May 1998. Most (n = 146) samples were collected during 3 time…”
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Peary caribou, muskoxen and Banks Island forage: Assessing seasonal diet similarities by Nicholas C. Larter, John A. Nagy

“…Peary caribou (Rangifer tarandus pearyi) and muskoxen {Ovibos moschatus) on Banks Island had considerable similarity in their annual diets, with monthly…”
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Monozygotic Twin Wolves with Divergent Life Histories by Carmichael, Lindsey, Nagy, John A., Strobeck, Curits

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