Author: Lisa K. M. RichardsPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Elk/moose Population Dynamics in the Riding Mountain National Park Region
Author: Lisa K. M. RichardsElk/moose Population Dynamics in the Riding Mountain National Park Region
Author: Elk/moose Population Dynamics in the Riding Mountain National Park Region
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This study considered relative impacts of some important factors on elk (Cervus elaphus manitobensis) and moose (Alces alces) population trends in Riding Mountain National Park (RMNP). Factors included hunter success outside Park boundaries, populations of beaver (Castor canadensis), wolf (Canis lupus), snowshoe hare (Lepus americanus), and weather severity. Cross-correlation analysis was used to determine the relationship between elk and moose populations and each parameter. Graphs and correlograms were used to explore the relationships. The elk population was significantly correlated to hunter harvest (r = $-$0.4812), the beaver population (r = 0.6271), the snowshoe hare population (r = 0.5628), the winter severity index (r = 0.5998), all temperature indices (r = 0.4800-0.5481), and snow accumulation (r = 0.6047). The moose population was significantly correlated to hunter harvest (r = $-$0.4628), the beaver population (r = 0.5908), the wolf population (r = .5839), the snowshoe hare population (r = 0.5967), the minimum winter temperature index (0.412), snow accumulation (r = 0.4821), and snow density ($-$0.4756). Of the factors examined, hunter harvest and winter severity were suspected to be influencing the elk population. Both factors may be creating delays in the population response by the effects of winter mortality of calves, reduced recruitment and reduced fecundity. As well, although no significant correlation was detected, wolves may be preventing the elk population from increasing dramatically. The moose population was suspected to be influenced by hinter harvest, beaver populations and winter severity. Again, hunter harvest and winter severity may be creating time-delayed population responses. Although the wolf population was found to be significantly correlated to the moose population, no lag effect implied that the populations were acting independently of each other. (Abstract shortened by UMI.).
Feasibility Assessment for the Reintroduction of North American Elk, Moose and Caribou Into Wisconsin
Author: Linda R. ParkerPublisher:
ISBN:
Category : Caribou
Languages : en
Pages : 140
Book Description
Elk, Moose, Wolves, the Nature of Nature, and National Park Management
Author: Andrea LagePopulation Dynamics of Rocky Mountain Elk and Mule Deer
Author: Jeffrey A. ManningPublisher:
ISBN:
Category : Deer populations
Languages : en
Pages : 294
Book Description
I investigated the dynamics of sympatric elk and mule deer populations across central and southern Idaho to: 1) estimate the effects of density dependence, interspecific interactions, forage, weather, and predation and 2) develop a predictive, stochastic simulation model that integrates both species with estimated coefficients for each factor. I used estimates of annual abundance from 1990-2003, when mule deer were in decline, elk populations fluctuated, and wolf abundance steadily increased. I tested theories of density-dependent habitat selection, evaluated the relative importance of factors on population growth of each species, and used the simulation model to predict responses to simulated changes in factors.
Development of an Ecological Model for the Riding Mountain National Park Elk Population
Author: Christina PattersonPublisher:
ISBN:
Category :
Languages : en
Pages : 220
Book Description
The state of ecological integrity can be determined by assessing the viability of a species that is considered vital to the ecosystem (Woodley 1993). This study involved modeling the Riding Mountain National Park elk population and components, which influenced and impacted the viability of the elk population, thereby indicating the state of ecological integrity within RMNP. Main components included in the model were wolves, human harvest, bear predation and winter severity. The development of the model utilized the STELLA software. As well, data were gathered from RMNP, the Manitoba Department of Conservation and various studies. The data was used to build the formulae that were placed in the model and then run. Sensitivity runs were conducted by varying the values of human harvest rate on elk, bear predation rate of elk calves, the adult and yearling birth rate of elk, and the wolf population. As well, additional runs were also carried out to test the elk population. The results of the run with the initial values showed an elk population that is beginning to decline. As well, the sensitivity runs indicated that the elk population was sensitive to changes in the human harvest rate on elk, the bear predation rate on calves and the adult birth rate. The model results also indicated that elk population was not that sensitive to changes in the wolf population. As well, the effect of winter severity on the elk population was minimal. The sensitivity of the elk population to the human harvest rate component indicates that the viability of the elk population could be significantly influenced by increases in the harvest rate. Because this is the a component of the model that RMNP managers can influence because RMNP managers are involved in setting the regulated harvest rates outside RMNP, the results of the model runs are beneficial for developing management practices that will help manage this component to prevent it from compromising the viability of the elk and possibly the ecological integrity of RMNP.
The Population Dynamics and Habitat Ecology of Elk in the Mount St. Helens Blast Zone
Author: Evelyn H. MerrillPublisher:
ISBN:
Category : Elk
Languages : en
Pages : 186
Book Description
Elk Movements, Habitat Use, and Population Dynamics in Theodore Roosevelt National Park
Author: Jerry A. WestfallPublisher:
ISBN:
Category : Elk
Languages : en
Pages : 177
Book Description
Author: P. J. Urness