Download or read book Characteristics of Spring Movements of Woodland Caribou Rangifer Tarandus Caribou in Two High Risk Ranges in Southeastern Manitoba written by Tim Davis and published by . This book was released on 2007 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Disturbances on the Movements of Female Woodland Caribou Rangifer Tarandus Caribou Across Multiple Spatiotemporal Scales written by D. Beauchesne and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seasonal Movements Habitat Utilization and Population Ecology of Woodland Caribou Rangifer Tarandus Caribou Gmelin in the Wallace Aikens Lake Region of Southeastern Manitoba written by William Richard Darby and published by . This book was released on 1979 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the general public has some knowledge of migratory barren-ground caribou (Rangifer tarandus groenlandicus L.), but few people realize that a larger counterpart, the woodland caribou (R. t. caribou Gmelin), exists in southern Canada. At present, the latter's range includes Newfoundland and most undeveloped areas of the boreal coniferous forest. Prior to European settlement, it included parts of the northern United States, but since 1750, the southern limit of distribution has receded steadily. In the past, representatives of the genus Rangifer were divided into many species and subspecies by several classification schemes. Banfield (1961) consolidated all races into one species (Rangifer tarandus) with five extant subspecies in North America: woodland caribou (R. t. caribou Gmelin), Grant's caribou (R. t. granti Allen) of the Yukon Territory and Alaska, barren-ground caribou (R. t. groenlandicus L.) of northern Canada, Peary's caribou (R. t. pearyi Allen) of the Canadian Arctic Archipelago, and domestic reindeer (R. t. tarandus L.) of the Tuktoyaktuk Peninsula, Northwest Territories. However, consolidation of the genus by Banfield (1961) did not obviate the fact that many differences in behaviour still exist among the incorporated races, including those within the R. t. caribou subspecies (cf. Shoesmith 1978). Investigations of woodland caribou in closed forest habitat are exceedingly difficult, and little information exists on their ecology. 0ften, extrapolations cannot be made from the existing literature. Reasons for the shrinking distribution and decline of woodland caribou are controversial. Nonetheless, widespread development of caribou habitat has always been attended by disappearance of the subspecies. Woodland caribou constitute a valuable resource for tourism, recreation, and the economy of native people. If mismanaged, the resource will disappear. Baseline data on woodland caribou in developing areas of Manitoba are needed. Information on the ecology of local populations would be valuable in making management decisions. This study was initiated to obtain data on caribou in the Wallace-Aikens lakes area of southeastern Manitoba. For purposes of convenience, the caribou in this area will be referred to as the Aikens Lake herd. The major objectives were: (l) to gather information on seasonal movements, distribution, and herd behaviour; and (2) to collect data on herd size, reproduction, mortality, and other aspects of population ecology. A minor objective was to examine aspects of habitat utilization.
Download or read book Home Range and Core Area Determination Habitat Use and Sensory Effects of All Weather Access on Boreal Woodland Caribou Rangifer Tarandus Caribou in Eastern Manitoba written by Doug W. Schindler and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Canada's boreal woodland caribou (Rangifer tarandus caribou Gmelin) are listed as "Threatened" under the Canadian Species at Risk Act (SARA) and provincially under the Manitoba Endangered Species Act (MESA). Two of three provincially designated high-risk boreal woodland caribou ranges occur in eastern Manitoba and have been studied using Global Positioning System (GPS) tracking technology. This project was undertaken with the cooperation of the Eastern Manitoba Woodland Caribou Advisory Committee (EMWCAC). I investigated the development of an objective criterion using an adaptive kernel analysis to define core areas of use and the sensory effects of all weather access. A Habitat Suitability Index (HSI) model for woodland caribou was evaluated to determine if woodland caribou were selecting high quality habitat as defined by the model. Habitat use and selection at course and fine scales was assessed to determine landscape and stand level selection and use. A case study of habitat use and selection using forest inventory attribute data was also conducted and a comparative analysis was undertaken to determine differences in habitat use and selection between two ecologically distinct caribou populations. The criteria used to define core areas yielded mapping outputs that could provide a surrogate for critical habitat and a basis for management zoning and habitat planning. Analysis of the animal use of high quality habitat as predicted by the HSI model illustrated that woodland caribou selection of high quality habitat versus its availability is significant. Course or landscape scale habitat selection and use analysis illustrated that woodland caribou require large tracts of jack pine dominated forest containing black spruce, treed rock and muskegs. At the fine or stand level scale, woodland caribou selected habitat based on discrete variables described in the forest inventory attribute data. Woodland caribou preferred 60 - 80 year old pine dominated forest with a crown closure greater than 50%, interspersed with black spruce, rock outcrop and treed muskegs. Woodland caribou habitat containing greater proportions of treed rock and muskeg in pine dominated forest was important to woodland caribou in eastern Manitoba. The effects of the Happy Lake Road on woodland caribou use and animal energetics are measurable. Woodland caribou illustrate avoidance at approximately 2 kilometres from the road with maximum use of habitat occurring at 9 kilometres from the road. The location of the Happy Lake Road may be favourable considering the location of the Black River. Avoidance of the Happy Lake Road by the Owl Lake animals may be a function of predator and human avoidance. General management implications from this study include the use of the objective criteria for adaptive kernel analysis to determine ecologically representative core use areas that can be used in integrated management zoning. It also has application as a tool for proactive monitoring in the determination of core areas and critical habitat in resource development and mitigation.
Download or read book Fire and Woodland Caribou Rangifer Tarandus Caribou written by James Allan Schaefer and published by . This book was released on 1988 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fire and Woodland Caribou Rangifer Tarandus Caribou written by James Allan Schaefer and published by . This book was released on 1988 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plasticity in Selection Strategies of Woodland Caribou Rangifer Tarandus Caribou During Winter and Calving written by David D. Gustine and published by . This book was released on 2005 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canopy Snow and Lichens on Woodland Caribou Range in Southeastern Manitoba written by James Allan Schaefer and published by [Thunder Bay, Ont.] : Lakehead Centre for Northern Studies. This book was released on 1990 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resource Selection Predation Risk and Population Dynamics of Woodland Caribou written by Nicholas James DeCesare and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Woodland caribou (Rangifer tarandus caribou) have experienced population declines and local extirpations across North America. Human disturbance has caused caribou declines indirectly through changes to apparent competition dynamics within the predator-prey community. Apparent competition occurs as a negative indirect interaction between prey species, mediated by their direct interactions with a shared predator. I first review apparent competition, and show that across many endangered species including woodland caribou, human disturbance often causes an asymmetric tilt to the balance among prey species. Landscape disturbance such as forest harvest and energy development have created early seral-stage forests and linear features across the landscape of west-central Alberta. I studied the effects of landscape disturbance on the predator-prey dynamics of woodland caribou, wolves (Canis lupus) and other ungulate prey species in this region. I examined spatial patterns of resource selection by caribou, wolf predation risk, adult female caribou survival and, ultimately, population trend for 9 woodland caribou populations. Caribou avoided disturbance across all scales of resource selection, though avoidance of forestry cut-blocks was strongest at broad home range scales and avoidance of linear features was strongest at fine scales along caribou movement paths. Linear disturbances also increased predation risk by being selected as travel routes for hunting wolves, but did not increase the predation efficiency in terms of kills per time, as hypothesized. Rather, spatial changes in predation efficiency were largely driven by natural landscape heterogeneity. Avoidance by caribou and increased wolf predation risk in disturbed areas indicate functional habitat loss for caribou, yet these patterns alone do not necessarily imply a demographic impact. Spatial analysis of factors influencing adult female survival indicated that caribou resource selection was broadly correlated with survival, but also that wolf predation risk was an additional mortality risk beyond that perceived by caribou. This failure of caribou to non-ideally avoid predation risk may explain my final analysis showing significant and multi-year declines for all populations in west-central Alberta. Ultimately, if caribou conservation is to succeed, management must reverse the ultimate causes shifting the balance of apparent competition at both broad and fine scales across woodland caribou range.
Download or read book Winter Ecology of Woodland Caribou Rangifer Tarandus Caribou and Some Aspects of the Winter Ecology of Moose Alces Alces Andersoni and Whitetail Deer Odocoileus Virginianus Dacotensis Mammalia written by R. R. P. Stardom and published by . This book was released on 1977 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three major woodland caribou habitats are: open larch or black spruce bogs (the major source of arboreal lichens), intermediate to mature jack pine rock ridge forests (the major source of ground lichens) and rock ridge-shored lakes (major travel, loafing and feeding areas at the beginning of the spring thaw). During early winter, the caribou feed intensively on arboreal lichens in open bogs under windless, thin snow cover conditions but, if the reverse conditions exist, intensive feeding shifts to ground lichens found on ridge areas. During the remainder of the snow period, major feeding is on intermediate to mature jack pine ridges where the snow cover is softer due to the lack of wind crusts and thinner due to qali formation. Major utilization of lakes occurs only during periods of thick snow cover when the nival conditions on lakes are more conducive to loafing and travel than adjacent forest types. The woodland caribou threshold of sensitivity to nival conditions is approximately 65 cm. The hardness threshold is approximately 80g/cm2 for jack pine ridge areas, 400 g/cm2 for open bog areas and 700 g/cm2 on lakes. The density threshold is approximately 0.20 to 0.36 for jack pine ridge areas, 0.18 to 0.24 for bog areas and 0.25 to O.33 for lakes. These thresholds vary with the thickness of the snow cover in the three habitats and height of hard, dense layers above the substrate. A minimum of 183 woodland caribou inhabited the extensive study area during the study period. This population was comprised of five groups that ranged in size from 8 to 55 individuals. No overlap in their winter ranges was evident. In a winter of thin snow cover, the bands making up the resident groups are smaller and feed more extensively over their winter range. Conversely, in a winter of thick snow cover, there is a greater aggregation of individuals into larger bands which feed intensively in small areas of their winter range. Association between whitetail deer and woodland caribou is almost non-existent. Association between whitetail deer and moose is high only during periods of thin snow cover when the two species inhabit the same habitat type. Association between moose and woodland caribou is less than what would be expected by chance and this lack of association is primarily due to ecological segregation. Moose appear to be restricted little in this portion of their winter range though they are generally observed on high ground or ridge areas during the onset of the winter period. When the bogs and swamps are frozen, they again inhabit a melange of habitat types and during late winter, are frequently found in areas which harbored deer in the early winter months. In the East Lake Winnipeg snow regime, average snow cover thicknesses have little effect on moose activity; any shift in activity normally does not occur until large areas exhibit snow cover thicknesses in excess of 70 cm. Whitetail deer are influenced most by the nival environment and, while inhabiting mixed deciduous-coniferous forests during the major portion of the winter, they are restricted to areas offering thin, soft snow conditions during January and February. Of the three ungulate species in the study area, whitetail deer are first to exhibit a response to the nival conditions and react to snow cover thicknesses in excess of 25 cm by moving from normal summer range to areas with more favorable snow conditions.
Download or read book Movement and Distribution of Woodland Caribou Rangifer Tarandus Caribou in Response to Industrial Development in Northeastern Alberta written by Simon James Dyer and published by . This book was released on 1999 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Woodland Caribou Rangifer Tarandus Caribou Habitat Classification in Northeastern Alberta Using Remote Sensing written by Gerardo-Arturo Sánchez-Azofeifa and published by Alberta Public Affairs Bureau. This book was released on 2001 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Spatial Variation in Forage Availability and Predation Risk on Habitat Selection by Woodland Caribou Rangifer Tarandus Caribou in Ontario written by Madeleine McGreer and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modelling the Effect of Landscape Features on Woodland Caribou Movement and Population Growth in Ontario written by Boyan Liu and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The suitability of an animal's local environment is expected to influence patterns of movement and population growth rate (lambda). Landscape suitability can accordingly be estimated, based on the relative frequency and spatial distribution of good versus poor areas. This framework can be used to evaluate the landscape suitability of 14 woodland caribou (Rangifer tarandus caribou) ranges in Ontario and relate it to projected inter-range differences in movement and lambda; calculated using individual-based movement trajectories. The caribou movement simulation model predicted that average rates of caribou displacement should decrease with increasing forage variability and decreasing variability in moose abundance. The caribou population viability analysis model predicted that caribou population growth should decrease with increasing density of both wolves and moose, the wolves' primary prey. These model predictions suggest that caribou movement and lambda could respond differently to spatial variation in food availability and predation risk.
Download or read book Ecological Society of America Annual Meeting Abstracts written by Ecological Society of America. Meeting and published by . This book was released on 2005 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conserving the Icon of the Boreal written by Manitoba Boreal Woodland Caribou Management Committee and published by . This book was released on 2014 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Connectivity of Boreal Woodland Caribou Rangifer Tarandus Caribou in Central Canada written by Pauline Priadka and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
