Download or read book Moose Alces Alces Habitat Quality written by Olav Hjeljord and published by . This book was released on 1996 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Habitat Quality for Moose Alces Alces L in Northern Sweden written by and published by . This book was released on 2001 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Winter Habitat Selection Winter Diet and Seasonal Distribution Mapping of Moose Alces Alces Shirasi in Southeastern Wyoming written by Phillip E. Baigas and published by ProQuest. This book was released on 2008 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: Winter (01 Jan - 15 Apr) habitat selection by Shiras moose (Alces alces shirasi) within individual home ranges was investigated using global positioning (GPS) collars on 23 adults (7 M, 16 F) during 2 winters (2005, 2006) of differing snow pack in the Snowy Range of the Medicine Bow mountains, southeastern Wyoming. Although wide variation was observed among animals, moose commonly selected for riparian shrub, deciduous forest, and mixed forest cover types. Mixed mountain shrub was occupied extensively by several moose and was used more often towards the end of winter, as moose tended to minimize movements and increasingly use other cover types in place of riparian shrub. Differences in selection ratios between sexes were not detected for any cover type and differences between years were minimal among moose collared both winters. Diets of moose during winter were also investigated through fecal analysis. Willow (Salix spp) and subalpine fir (Abies lasiocarpa) composed a mean 60% and 30% of moose diets, respectively, with the remaining 10% comprised mostly antelope bitterbrush (Purshia tridentata), mountain mahogany (Cercocarpus montanus), or Saskatoon serviceberry (Amelanchier alnifolia). Diets were more diverse in the year of less snow pack. Patterns of habitat selection by collared moose did not differ between winters, as would be expected if forage availability differed considerably between years. This was likely because moose GPS locations did not overlap fecal collection sites and forage item selection within those sites occurs at a different scale than the selection of cover types within home ranges. A literature-based winter habitat suitability index (HSI) model was developed from common geographic information system (GIS) layers and scrutinized with GPS locations of sampled moose. However, the HSI model was poorly predictive of winter habitat occupancy. More accurate resource selection function (RSF) models were constructed by integrating moose GPS locations with more refined GIS data layers. Numerous vegetative, topographic and distance variables were calculated across the study area and were used in a forward stepwise general linear regression model to identify important components of moose habitat during winter and non-winter seasons. Distance to forest edge and distance to deciduous forest were significant predictors in both seasons. Slope also influenced habitat use year-round, although slope2 was a factor in the winter model. While distance to riparian shrub was predictive of moose habitat occupancy during winter, the total area of riparian shrub within a circular 1 km radius was a better determinant of summer habitat use. The combination of variables in the winter model accounts for the distribution of willow, subalpine fir, mountain mahogany and antelope bitterbrush, in proximity to forest cover. The non-winter model demonstrated the nearly exclusive importance of riparian shrub habitat in proximity to thermal cover across a wider range of elevations than during winter. A technique was employed to make spatial calculations of the potential range capacity for moose using the winter RSF map predictions observed within individual moose winter home ranges. A wide range of capacity estimates were computed by adjusting the minimum habitat quality and maximum size parameters observed in moose winter ranges. Because not all moose are energetically capable of occupying the maximum observed home range size or competing for the highest quality habitat, more sensible estimates were produced using the mean winter home range quality and size inputs.
Download or read book Alces moose ecology written by Jean Bédard and published by Presses de L'Universite Laval. This book was released on 1975 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Habitat Suitability 1955 1991 for Moose Alces Alces in the Western Upper Peninsula of Michigan written by Steffen L. Ockey and published by . This book was released on 1995 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Variation in Moose Alces Alces Population Densities in Relation to Habitat Quality at Two Different Scales in Northwestern Ontario written by Katherine Cumming and published by . This book was released on 1996 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Selection Condition and Survival of Shiras Moose in Northwest Wyoming written by Scott A. Becker and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seasonal movements, habitat selection, physiological health, and demography of Shiras moose (Alces alces shirasi) were studied in the Jackson Valley of northwest Wyoming. Moose congregated on low-elevation ranges during winter and migrated to more dispersed, mid-elevation ranges during summer. Moose selected winter habitat dominated by deciduous shrubs, whereas they selected summer habitat that was more variable. Blood parameters indicated that moose were in moderate physical condition. Ultrasonic rump fat measurements were relatively high, but there were indications of nutritional deficiencies. Diseases and parasites appeared to have minimal population-level effects. Population modeling suggested that the moose population was more likely to be declining than stable or increasing and the population growth rate was influenced primarily by late-winter and early-spring adult female mortality. Pregnancy rates were high, but calf production was relatively low. Neonate and annual calf survival were relatively high. Habitat quality appeared to be the primary factor limiting population growth while the effects of predation appeared to be less important.
Download or read book Habitat Suitability Index Model for Moose Alces Alces on the Kenai Peninsula written by Lana Shea and published by . This book was released on 1981 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Suitability Index Models written by Arthur W. Allen and published by . This book was released on 1987 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Winter Bedding Habitat Characteristics of Moose Alces Alces in Michigan written by Terry R. Minzey and published by . This book was released on 1989 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Socio ecological Drivers of Resource Selection and Habitat Use by Moose in Interior Alaska written by Casey L. Brown and published by . This book was released on 2016 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainably managing wildlife with diverse utilization values is one of the greatest challenges facing contemporary wildlife management. These challenges can be amplified under changing environmental and socio-economic conditions. In Alaska, boreal forest systems are experiencing rapid change as a result of climate warming. Alaska’s boreal region has warmed twice as rapidly as the global average, affecting a host of processes including an increase in wildfire frequency, extent, and severity. Wildfire is the most common ecological disturbance in the Alaskan boreal forest and an important driver of landscape heterogeneity, burning on average 1 to 2 million acres per year. Fire severity is a particularly important factor dictating the regeneration of deciduous species, and one that can influence the overall quality of habitat for herbivores, such as moose (Alces alces). However, the relationships between the availability and duration of biomass production and moose habitat selection are largely unknown. Additionally, the effects of fire on wildlife resources in Alaska can have important consequences for boreal social-ecological systems as well. Fire-related changes to the community composition of forest stands would likely affect the densities of species that human communities rely on for hunting and trapping. In Interior Alaska, where natural wildfire is the primary means of increased browse production for moose, managers may want to consider incorporating burns into management plans while paying particular attention to hunter accessibility. However, an increase in hunter activity into moose habitat could result in changes to moose distribution and activity patterns near trails and roads. To examine these questions I utilized telemetry data from 26 moose along with methods in spatial ecology, plant-animal interactions, resource selection and human dimensions of wildlife research to predict the influence of an ecological disturbance (fire) and an anthropogenic disturbance (hunter activity) on moose habitat use. I used dynamic Brownian bridge movement models (dBBMM) in conjunction with browse assessment surveys to examine how fire severity, via its control over vegetation composition, forage production and nutritional quality, affect habitat use patterns of moose across their seasonal home ranges and core use areas. To assess the effects of hunter activity on moose habitat use, I created fine-scale stepselection models to test whether habitat selection and movement patterns were affected by spatio-temporal variation in risk from hunting activity. Additionally, from August-October, I used a camera trap array to collect field data on human activity (off-road vehicles, automobiles, 4x4 trucks, dirt bikes, and hunters afoot) together with the RandomForests algorithm to create high-resolution hunter distribution models. Finally, to integrate my research within a socialecological framework, I examined the interactions between wildfire, forage production and hunter access on management scenarios overtime. In winter, moose preferred low-severity sites more than high and moderate-severity sites, but in summer, moose selected for high-severity sites. Forage biomass production ranged from 62 to 243 kg/ha/yr across all sites during winter within the Hajdukovich Creek Burn, but production and availability varied depending on fire severity and browse species. These results indicate that differing distributions of wildfire severity across a landscape can create a dynamic, mosaic of habitat patches that may optimize and extend the value of burns over time for moose. I found that while moose selected habitat closer to trails and roads, they also avoided areas with more hunting activity. Finally, my management scenarios provide a framework for managers to adapt goals and actions to changing conditions that can affect moose-hunter systems. I recommend that wildlife conservation and management decisions consider these methods as we seek to sustainably manage wildlife for future generations during a time of rapid socio-ecological change in Alaska.
Download or read book Moose Population Density and Habitat Productivity as Drivers of Ecosystem Processes in Northern Boreal Forests written by Inga-Lill Persson and published by . This book was released on 2003 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integrating Individual Process and Population Pattern Across Spatial Scales written by Garrett Street 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 Aquatic Habitat Use by North American Moose Alces Alces and Associated Richness and Biomass of Submersed and Floating leaved Aquatic Vegetation in North central Minnesota written by David Matthew Morris and published by . This book was released on 2014 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The North American moose (Alces alces) is a species of socio-economic importance that has undergone recent declines in some areas of its range and may be impacted by climate change through effects on physiology or habitat availability. Moose frequently use aquatic habitat during summer but the timing, frequency and reasons for this behaviour are not well understood and appear to vary geographically. My objectives were to: 1) clarify the importance of aquatic habitat to North American moose through a literature review and 2) estimate richness and biomass of submersed and floating-leaved vegetation in lakes and beaver ponds potentially used by moose in north-central Minnesota through a comparative field study. The literature suggests that moose use aquatic habitats to feed and escape biting insects and do not appear to use them to escape predators or ameliorate heat stress, though the latter function may be important at the extreme southern limits of moose range. Richness and biomass of aquatic plants in aquatic areas potentially used by moose in north-central Minnesota was heavily influenced by the presence and damming activity of beaver (Castor canadensis). Beaver ponds contained higher richness and biomass of aquatic vegetation compared to lakes. The creation and maintenance of large (> 1 ha) beaver ponds 6-38 years of age facilitate moose in meeting nutritional demands because they allow growth and reproduction of species less competitive but potentially more palatable than the dominant floating-leaved plant Brasenia schreberi. The maintenance of beaver populations may be important for moose conservation in north-central Minnesota."-- from abstract.
Download or read book Habitat Use and Selection by Male and Female Moose Alces Alces in a Boreal Landscape written by Alice McCulley and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Moose (Alces alces) is a keystone species in boreal landscapes. I quantified seasonal range sizes, movement rates, and use of elevation and land cover for male and female moose in south-central Yukon. I used individual and pooled resource selection functions to define the influence of land cover, topography, predation risk, and harvest vulnerability on habitat selection. Seasonal changes affected use and selection more than gender or reproductive status (females with and without calves). High use and positive selection for shrub-dominated land-cover classes by all individuals in all seasons affirmed forage as a primary force driving seasonal selection patterns. Variation in selection among individuals was highest during the growing seasons and least during late winter, when options were constrained by climatic factors. These findings from telemetered moose generally corresponded with models based on local knowledge-based habitat suitability indices and post-rut locations from aerial surveys and they contribute to land-use planning processes. --Leaf ii.
Download or read book Habitat Use and Selection by Male and Female Moose Alces Alces in a Boreal Landscape written by Alice M. McCulley and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Moose (Alces alces) is a keystone species in boreal landscapes. I quantified seasonal range sizes, movement rates, and use of elevation and land cover for male and female moose in south-central Yukon. I used individual and pooled resource selection functions to define the influence of land cover, topography, predation risk, and harvest vulnerability on habitat selection. Seasonal changes affected use and selection more than gender or reproductive status (females with and without calves). High use and positive selection for shrub-dominated land-cover classes by all individuals in all seasons affirmed forage as a primary force driving seasonal selection patterns. Variation in selection among individuals was highest during the growing seasons and least during late winter, when options were constrained by climatic factors. These findings from telemetered moose generally corresponded with models based on local knowledge-based habitat suitability indices and post-rut locations from aerial surveys; and they contribute to land-use planning processes."--Leaf ii.
