Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Kirby G. Smith"'
Autor:
Wibke Peters, Mark Hebblewhite, Kirby G. Smith, Shevenell M. Webb, Nathan Webb, Mike Russell, Curtis Stambaugh, Robert B. Anderson
Publikováno v:
Wildlife Society Bulletin, Vol 38, Iss 3, Pp 639-649 (2014)
ABSTRACT Population assessment is a primary component of ungulate management, but managers are continuously under pressure to reduce survey cost. Another concern in aerial surveys is accounting for undetected animals (i.e., visibility bias). Currentl
Externí odkaz:
https://doaj.org/article/619a310533884a1e8587bf6df699d1a8
Autor:
Nathan F. Webb, Kirby G. Smith, Mark Hebblewhite, Curtis Stambaugh, Shevenell M. Webb, Robert B. Anderson, Mike Russell, Wibke Peters
Publikováno v:
Wildlife Society Bulletin. 38:639-649
Population assessment is a primary component of ungulate management, but managers are continuously under pressure to reduce survey cost. Another concern in aerial surveys is accounting for undetected animals (i.e., visibility bias). Currently, a stra
Autor:
Nicholas J. DeCesare, Lalenia Neufeld, Mark Hebblewhite, Mark Bradley, Kirby G. Smith, David Hervieux
Publikováno v:
The Journal of Wildlife Management. 76:144-153
Trends in population growth can be monitored with data for key vital rates without knowledge of abundance. Although adult female survival has the highest elasticity for ungulate population dynamics, the more variable recruitment rates are commonly mo
Publikováno v:
Journal of Wildlife Management. 70:1044-1053
The understanding of population dynamics is a central issue for managing large mammals. Modeling has allowed population ecologists to increase their knowledge about complex systems and better predict population responses to diverse perturbations. Mou
Publikováno v:
Wildlife Biology. 9:213-218
Native populations of mountain goats Oreamnos americanus are sensitive to harvest. To assess the potential effects of limited hunting on population dynamics, we analysed long-term data obtained from aerial counts of 12 native mountain goat herds in A
Publikováno v:
Canadian Journal of Zoology. 78:1433-1440
The responses of a herd of migratory woodland caribou (Rangifer tarandus caribou) to timber harvesting that fragmented about 11% of their winter range in west-central Alberta were examined in this study. From 1981 to 1996, 45 caribou were radio-colla
Publikováno v:
Journal of Mammalogy. 79:406-414
Horns of bovids are important social organs, their growth is often indicative of population characteristics and habitat quality, but little is known of the factors affecting their growth in individuals. We studied horn growth of 135 (51 males, 84 fem
Publikováno v:
Canadian Journal of Zoology. 74:330-342
Individually marked bighorn sheep (Ovis canadensis) were monitored to determine how seasonal and lifetime changes in mass affected the development of sexual dimorphism, and to what extent mass at a given age could predict mass of the same sheep at a
Autor:
Mark Bradley, Luigi E. Morgantini, Kirby G. Smith, Jesse Whittington, Fiona K. A. Schmiegelow, Lalenia Neufeld, Gregory J. McDermid, David Hervieux, Matthew Wheatley, Mark Hebblewhite, Nicholas J. DeCesare, Marco Musiani
Publikováno v:
Ecological applications : a publication of the Ecological Society of America. 22(4)
Multi-scale resource selection modeling is used to identify factors that limit species distributions across scales of space and time. This multi-scale nature of habitat suitability complicates the translation of inferences to single, spatial depictio
Publikováno v:
Scopus-Elsevier
During a 5-year study of a marked population of mountain goats (Oreamnos americanus) in west-central Alberta, 5 of 17 females produced their first kid at 4 years of age, while most females did not reproduce until 5 years of age. Twinning accounted fo