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Calving Ground Habitat Selection Of Boreal Woodland Caribou Rangifer Tarandus Caribou In The Owl Flintstone Range
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Book Synopsis Calving Ground Habitat Selection of Boreal Woodland Caribou (Rangifer Tarandus Caribou) in the Owl-Flintstone Range by : Daniel L. J. Dupont
Download or read book Calving Ground Habitat Selection of Boreal Woodland Caribou (Rangifer Tarandus Caribou) in the Owl-Flintstone Range written by Daniel L. J. Dupont and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boreal woodland caribou -- calving -- islands -- bog -- black spruce -- lichen.
Book Synopsis Calving Ground Habitat Selection by : Rebecca A. Kelleyhouse
Download or read book Calving Ground Habitat Selection written by Rebecca A. Kelleyhouse and published by . This book was released on 2001 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Barren-ground caribou (Rangifer tarandus granti) exhibit relative fidelity to calving grounds each spring. The Western Arctic Herd (WAH) and Teshekpuk Lake Herd (TLH) calve separately on Alaska's north slope, each selective of the dominant vegetation type. The WAH consumed mostly sedges, though the TLH diet varied. Despite differing snow conditions between the calving grounds, both herds were selective of the lowest snow cover class. Rugged terrain was avoided by both herds. While the TLH selected a high rate of increase in biomass, the WAH selected high biomass at calving and at peak lactation. Climate trends (1985-2001) were variable. There was a warming trend on the WAH calving ground, though no significant trends were present on the TLH calving ground, as expressed by median NDVI on 21 June. These herds have similar winter ranges and population trends, yet they differ in respect to habitat composition, selection and climate patterns during calving"--Leave iv.
Book Synopsis Calving Behavior of Boreal Caribou in a Multi-predator, Multi-use Landscape by : Craig Allen DeMars
Download or read book Calving Behavior of Boreal Caribou in a Multi-predator, Multi-use Landscape written by Craig Allen DeMars and published by . This book was released on 2015 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: The boreal ecotype of woodland caribou (Rangifer tarandus caribou) is federally listed as Threatened due to population declines throughout its distribution. High mortality rates of neonate calves (≤ 4 weeks old) due to predation are a key demographic factor contributing to population declines and increasing predation has been linked to landscape disturbance within and adjacent to caribou range. To inform management strategies for improving rates of calf survival, I investigated the space use and habitat requirements of female boreal caribou during calving. Space is integral to the calving behaviour of boreal caribou with parturient females dispersing widely on the landscape, a behaviour hypothesized to reduce predation risk. I assessed potential evolutionary drivers of dispersion using simulation analyses that tracked caribou-wolf encounters during the calving season. I specifically assessed whether dispersion decreased predation risk by: (i) increasing predator search time, (ii) reducing predator encounters because individuals are inconspicuous relative to groups, or (iii) eliminating the risk of multiple kills per predator encounter of caribou groups. Simulation outputs show that dispersion only becomes favourable when differential detectability based on group size is combined with the risk of multiple kills per encounter. This latter effect, however, is likely the primary mechanism driving parturient females to disperse because group detectability effects are presumably constant year round. Simulation outputs further demonstrate that if females become increasingly clumped - a pattern that may result if caribou avoid disturbance in highly impacted landscapes - then calf survival is negatively affected. To specifically identify key attributes of calving habitat, I used a three-step process. First, I identified GPS locations where females were accompanied by neonate calves by developing two novel methods for predicting parturition events and neonate survival status based on female movement patterns. These methods predicted parturition with near certainty and provided reasonable estimates of neonate survival, which I further augmented with aerial survey data. Using the partitioned GPS location data, I then developed resource selection functions using a generalized mixed effects modelling approach that explicitly maintained the individual as the sampling and comparative unit. I discriminated calving areas from other areas within caribou range by conducting multiple comparisons based on season and maternal status. These comparisons show that parturient females shifted from bog-dominated winter ranges to calving areas dominated by fens. In general, reducing predation risk was a dominant factor driving calving habitat selection although the shift to fen landscapes indicates that females may be trading off increased predation risk to access higher quality forage because fens are riskier than bogs. As a third step, I explicitly evaluated calving habitat quality by relating maternal selection and use of resources to the probability of neonate survival. These analyses included spatially explicit covariates of predator-specific risk. Surprisingly, variation in landscape disturbance had minimal effect on calf survival; rather, survival was best explained by predation risk from black bears (Ursus americanus). Collectively, my findings yield important insights into the habitat requirements of boreal caribou during calving and highlight that management actions aimed at improving calving habitat quality will need to be conducted at large spatial scales.
Book Synopsis 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 by : Doug W. Schindler
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.
Book Synopsis Habitat Selection of Woodland Caribou on a Managed Landscape by : Mark William Basterfield
Download or read book Habitat Selection of Woodland Caribou on a Managed Landscape written by Mark William Basterfield and published by . This book was released on 2012 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Plasticity in Selection Strategies of Woodland Caribou (Rangifer Tarandus Caribou) During Winter and Calving by : David D. Gustine
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:
Book Synopsis Woodland Caribou and Their Habitat in Southern and Central British Columbia by : Susan K. Stevenson
Download or read book Woodland Caribou and Their Habitat in Southern and Central British Columbia written by Susan K. Stevenson and published by . This book was released on 1985 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study looks at the distribution, population status, andmanagement (including harvest) of caribou in southern and centralBritish Columbia; seasonal habitat use, food habits, and otheraspects of the animals' ecology; patterns of forest harvesting, silvicultural treatment, fire history, insect attack, and otherphenomena that affect caribou habitat; the pattern and age offorest stands available to caribou; the status of forestmanagement planning and the pressure on the timber supply in theTimber Supply Areas that support caribou; current policies forhabitat protection and the options that are available forintegrating caribou management and timber harvesting; factorsaffecting numbers of large ungulates; the extent and quality ofcurrently available information. The study makes recommendationsregarding research topics, hypotheses, priorities, and studyareas and the needs for management analysis.
Book Synopsis An Evaluation of Woodland Caribou (Rangifer Tarandus Caribou) Calving Habitat in the Wabowden Area, Manitoba by :
Download or read book An Evaluation of Woodland Caribou (Rangifer Tarandus Caribou) Calving Habitat in the Wabowden Area, Manitoba written by and published by . This book was released on 1908 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Wabowden woodland caribou (Rangifer tarandus caribou) herd in north central Manitoba is considered at high risk due to potential loss of desirable habitat caused by forestry operations. The objectives of this study were to identify and examine the characteristics of calving habitat of the Wabowden caribou herd, to describe and evaluate the habitat in terms of timber resource values, and to identify potential conflicts between caribou habitat requirements and forestry operations. Telemetry locations from 14 female caribou between the middle of May to the end of June in 1995 and 1997 were examined. The calving habitat was described using the Forest Ecosystem Classification for Manitoba, Forest Resource Inventory attributes, and ground vegetation composition data collected from 58 caribou locations. Field data suggested that during the study period, marked cows were often associated with lowland black spruce stands scattered across muskeg. No use of islands in lakes was observed. Habitat use and availability analysis indicated that caribou seemed to avoid deciduous stands, stands with early cutting classes, and non-black spruce conifer stands. The use of treed muskeg was more than expected from its availability. No significant differences were found between calving habitat and random locations in terms of habitat heterogeneity and distance from landscape objects, with the exception of the distance from transmission lines. Timber merchantability of survey sites indicated that the calving habitat in the northern portion of the study area was potentially at risk due to habitat alteration by forestry operations. Calving habitats found in the central and southern part of study area mostly had low timber merchantability, mainly due to the inaccessibility and isolation of the stands.
Book Synopsis Habitat Selection by the Slate Island Boreal Woodland Caribou (Rangifer Tarandus Caribou). by : Jennifer Lynn Renton
Download or read book Habitat Selection by the Slate Island Boreal Woodland Caribou (Rangifer Tarandus Caribou). written by Jennifer Lynn Renton and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Slate Islands caribou (Rangifer tarandis caribou) is an insular population which has experienced several population crashes and has been described as likely to succumb to extirpation. While a great deal of research has been conducted on mainland woodland caribou, factors which influence caribou distributions may differ between island and main land populations. In this thesis, I investigate relationships between habitat, landscape, anthropogenic features, population size, predation and spatial distribution of woodland caribou across the Slate Islands Provincial Park (Ontario) at the forest-patch spatial scale. Generalized linear models were used to compare observed caribou locations to available locations across the park, based on data from 1978 to 1995. Results indicated that the Slate Islands caribou selected deciduous cover, larger forest patches, areas further to water, flatter areas, lower elevations and areas closer to anthropogenic features. Population size had a limited effect on caribou distributions.
Book Synopsis Multi-scale Habitat Selection by Boreal Woodland Caribou in the Sahtú, Gwichʼin and Inuvialuit Regions of the Northwest Territories by : Stantec Consulting Ltd
Download or read book Multi-scale Habitat Selection by Boreal Woodland Caribou in the Sahtú, Gwichʼin and Inuvialuit Regions of the Northwest Territories written by Stantec Consulting Ltd and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: To expand upon previous Department of Environment and Natural Resource (ENR) studies of habitat selection by boreal woodland caribou in the northern part of their Northwest Territories (NWT) range (Nagy et al. 2005, 2006), resource selection function (RSF) analysis was carried out with data from 58 boreal caribou that were fitted with satellite and GPS collars between 2002 and 2011 in the Sahtú, Gwichʼin and Inuvialuit Settlement Regions (ISR). Habitat selection by boreal caribou was evaluated at two spatial scales: the selection of home ranges within the study area (broad scale) and the selection for different areas within each caribou's home range (finer scale). Each scale of habitat selection was evaluated separately for the winter, calving, summer, and fall breeding seasons. To evaluate selection of home ranges within the study area, habitat features at random locations drawn within individual seasonal home ranges were contrasted to habitat features at random locations distributed throughout the study area. Habitat selection within home ranges was evaluated by comparing habitat features at each observed collar location to habitat features at random locations drawn from within individual seasonal home ranges. This approach allowed the two scales of habitat selection to be combined into RSF maps that captured both scales of habitat selection. Habitat features considered in the analysis included land cover type, vegetation productivity, slope, elevation, distance to lakes and rivers, density and distance to seismic lines, presence of roads, and presence of forest fires
Book Synopsis An Evaluation of Woodland Caribou (Rangifer Tarandus Caribou) Calving Habitat in the Wabowden Area, Manitoba by : Tamaki Hirai
Download or read book An Evaluation of Woodland Caribou (Rangifer Tarandus Caribou) Calving Habitat in the Wabowden Area, Manitoba written by Tamaki Hirai and published by . This book was released on 1998 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Landscape Composition and Configuration Influences Woodland Caribou Calf Recruitment by : Sara C. McCarthy
Download or read book Landscape Composition and Configuration Influences Woodland Caribou Calf Recruitment written by Sara C. McCarthy and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spatial and Temporal Characterization of Woodland Caribou (Rangifer Tarandus Caribou) Calving Habitat in the Boreal Plains and Boreal Shield Ecozones of Manitoba and Saskatchewan by : Casidhe Dyke
Download or read book Spatial and Temporal Characterization of Woodland Caribou (Rangifer Tarandus Caribou) Calving Habitat in the Boreal Plains and Boreal Shield Ecozones of Manitoba and Saskatchewan written by Casidhe Dyke and published by . This book was released on 2009 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Gerardo-Arturo Sánchez-Azofeifa Publisher :Alberta Public Affairs Bureau ISBN 13 :9780778519935 Total Pages :25 pages Book Rating :4.5/5 (199 download)
Book Synopsis Woodland Caribou (Rangifer Tarandus Caribou) Habitat Classification in Northeastern Alberta Using Remote Sensing by : Gerardo-Arturo Sánchez-Azofeifa
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:
Book Synopsis Calf Survival of Woodland Caribou in a Multi-predator Ecosystem by : David D. Gustine
Download or read book Calf Survival of Woodland Caribou in a Multi-predator Ecosystem written by David D. Gustine and published by . This book was released on 2006 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The proximate role of predation in limiting caribou (Rangifer tarandus) populations is well documented, but the long-term effects of predation pressure on selection of calving areas and the subsequent impacts to calving success remain unclear. We examined the relationships among calf survival, predation risk, and vegetation characteristics among 3 calving areas and across spatial scales in the Besa-Prophet River drainage of northern British Columbia"--page 1.
Book Synopsis Close Encounters of the Burned Kind by : Kelsey L.M. Russell
Download or read book Close Encounters of the Burned Kind written by Kelsey L.M. Russell and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest fire is the primary natural disturbance process influencing the distribution and abundance of terrestrial lichens across ranges of woodland caribou (Rangifer tarandus caribou), including the Klaza Caribou Herd in west-central Yukon. I used stand and understory data to understand variation in the abundance of lichens in burns of various ages. Focusing on the distribution of individual caribou, I used a dataset of GPS collar locations to examine resource selection on the winter range and within burns. Results suggested that burns provided suboptimal habitat for the KCH until 50 years post-fire; however, analyses focused on the use of burned habitat indicated that they regularly encountered burns and opportunistically used remnant lichen within the burn perimeter. The relationship between caribou and burned landscapes is complex and non-linear indicating that wildlife managers should look beyond burn age to account for the effects of fire on the availability and quality of caribou habitat.
Book Synopsis Habitat Selection by Calving Caribou of the Central Arctic Herd, 1980-95 by : Scott Adrian Wolfe
Download or read book Habitat Selection by Calving Caribou of the Central Arctic Herd, 1980-95 written by Scott Adrian Wolfe and published by . This book was released on 2000 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Habitat selection by calving caribou (Rangifer tarandus granti) of the Central Arctic Herd, Alaska, was assessed in relation to distance from roads, vegetation type, relative plant biomass (NDVI; Normalized Difference Vegetation Index), accumulation of plant biomass during early lactation (NDVIrate), snow cover, and terrain ruggedness. From 183 calving sites of 96 radio collared- females, 1980-95, calving distribution was estimated in reference (no development) and treatment (oilfields present) zones east and west of the Sagavanirktok River, respectively. In the reference zone, caribou regularly selected wet-graminoid vegetation, above-median NDVIrate, and non-rugged terrain; concentrated calving remained in habitats with zonal average NDVI on 21 June (NDVI621). In the treatment zone, selection patterns were inconsistent; concentrated calving shifted inland to rugged terrainwith low NDVI621 and away from development. Repeated use of lower-quality habitats in the treatment zone could compromise nutrient intake by calving females, thereby depressing reproductive success of the western-segment of the herd"--Leaf iv.
