Your search for keyword(s) "moose" resulted in 15 record(s).

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Title: Spatial patterns in the moose-forest-soil ecosystem on Isle Royale, Michigan, USA: Journal: Ecological Applications; Authors: J. B. Pastor, B. Dewey, R. Moen, J. Mladenoff, M. White, and J. Cohen; Date: 1998; Summary: Some of the highest moose (Alces alces) densities in the world are on the Isle Royale in Michigan and it is believed that moose browsing has caused a shift from hardwood to conifer dominated forest in this area. The authors tested three geostatistical models of the spatial distribution of available browse, annual browse consumption, conifer basal area, and soil nitrogen across the landscape: (1) random spatial distribution; (2) spherical model; and (3) harmonic oscillator model. The results of this study suggest that as moose use increases, the number of small aspen (< ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article

Title: Moose herbivory and carbon turnover of early successional stands in interior Alaska: Journal: Oikos; Authors: K. Kielland, J. P. Bryant, and R. W. Ruess; Date: 1997; Summary: Kielland et al. examined the effect of winter browsing by moose (Alces alces) and snowshoe hare (Lepus americanus) on primary succession of willow (Salix sp.) and alder (Alnus tenuifolia) communities in interior Alaska. In contrast to earlier studies, which have concluded that herbivory decreases organic matter turnover and element cycling in late successional evergreen forest, the authors show that herbivory increases these factors in the early successional forest, in which most browsing occurs. The short-te ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article

Title: The impact of native ungulates and beaver on riparian communities in the intermountain west: Journal: Natural Resources and Environmental Issues; Authors: C. E. Kay; Date: 1994; Summary: This is a scientific synthesis based on the authorâ€™s PhD dissertation along with 141 other studies on elk, moose, and beaver herbivory in riparian communities in the northern range of Yellowstone National Park. ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article

Title: Moose herbivory, browse quality, and nutrient cycling in an Alaskan treeline community: Journal: Oecologia; Authors: E. M. Molvar, R. T. Bowyer, and V. Van Ballenberghe; Date: 1993; Summary: The effects of moose (Alces alces) herbivory on diamond-leaf willow (Salix planifolia pulchra) forage quality and rate of nitrogen mineralization were examined in the Jenny Creek and Savage River drainages in central Alaska (63Â° 45â€™ N, 150Â° W). Two sites of varied moose density (high, low) were divided into sun and shade areas and further divided into three browse categories (high->50%, moderate-25-49% and low-<25%). The proportion of stems browsed per plant during the previous year of growth was measured. Stem ...; Agrovoc Control Words: Riparian zones, Herbivory, Wildlife; View more details about this article

Title: Moose browsing and soil fertility in the boreal forests of Isle Royale National Park: Journal: Ecology; Authors: J. Pastor, B. Dewey, R. J. Naiman, P. F. McInnes, and Y. Cohen; Date: 1993; Summary: Pastor et al. studied the effect of moose (Alces alces) browsing on the nutrient cycles of boreal forests using three, 40-year old exclosures on Isle Royale, Michigan. Soil nutrient availability and microbial activity, including exchangeable cations, total carbon and nitrogen, nitrogen mineralization rates, and microbial respiration rates were uniformly higher in exclosures than outside. These differences were more significant where browsing intensity was high and less often significant where was browsing intensity was low. Differences in litter quantity and quality wer ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article

Title: Effects of moose browsing on vegetation and litter of the boreal forest, Isle Royale, Michigan, USA: Journal: Ecology; Authors: P. F. McInnes, R. J. Naiman, J. Pastor, and Y. Cohen; Date: 1992; Summary: McInnes et al. examined the influence of moose (Alces alces) on aboveground biomass, production, and annual litterfall using four moose exclosures and paired browsing plots on Isle Royale, Michigan. In terms of species richness, moose browsing did not alter the number of plant species. The mean tree biomass was significantly greater in the exclosures than in browsed plots (230 and 150 Mg/ha). Every exclosure had more trees than corresponding browsed plots. The abundance of most species in the browsed plots and exclosures varied widely from site to site, only balsam fir ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article

Title: Balsam fir on Isle Royale: Effects of moose herbivory and population density: Journal: Ecology; Authors: T. A. Brandner, R. O. Peterson, and K. L. Risenhoover; Date: 1990; Summary: Moose (Alces alces) herbivory was assessed in relation to population parameters of both Balsam fir (Abies balsamea) and moose populations on Isle Royale National Park, Michigan (47Â° 55' N, 89Â° 00' W). Nine study sites were selected from four zones with varying moose densities (absent, low, medium and high) and four zones of fir densities (absent, low, medium and high). The sites missing both moose and fir were excluded. All vegetation sampling was conducted from May through mid-July of 1985. Browse damage was classified in four categories: 0=unbrowsed; 1=side branche ...; Agrovoc Control Words: Riparian zones, Browse plants, Wildlife; View more details about this article

Title: Browse regrowth and use by moose after fire in interior Alaska: Journal: Northwest Science; Authors: J. G. MacCracken, and L. A. Viereck; Date: 1990; Summary: MacCracken and Viereck estimated browse regrowth and use by moose (Alces alces) two months to two years after a fire in interior Alaska. Browse regrowth was abundant within two months. Regrowth was from root and stump sprouting of quaking aspen (Populus tremuloides), paper birch (Betula papyrifera), and willows (Salix spp.). Aspen sites produced the most browse followed by white spruce (Picea glauca), birch, and black spruce (Picea mariana). By the third growing sea ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article

Title: Effects of beaver and moose on the vegetation of Isle Royale National Park: Journal: Alces; Authors: R. Moen, J. Pastor, and Y. Cohen; Date: 1990; Summary: This study on the Isle Royale National Park inferred how moose (Alces alces) and beaver (Castor canadensis) affect current and future landscape patterns. About 40% of the bites by moose in both winter and summer were aspen (Populus tremuloides) in this study area. In beaver-cut areas and in uncut forest, aspen was the only browse species that was preferred by moose in both summer and winter. Browsing on balsam fir (Abies balsamea) reproduction was not sufficient to prevent regeneration. Balsam fir was avoid ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article

Title: Impact of bark stripping by moose on aspen-spruce communities: Journal: Journal of Wildlife Management; Authors: D. G. Miquelle, and V. Van Ballenberghe; Date: 1989; Summary: A study in Denali National Park, Alaska, studied bark stripping by moose (Alces alces) in order to determine the proportion of bark in their diet, what conditions induce bark stripping, and assess the combined impact of stem breakage and bark stripping in a quaking aspen (Populus tremuloides)-white spruce (Picea glauca) community. Bark comprised less than 4% of the diet of moose. Based on the proportion of foraging bouts in which bark stripping occurred, female moose ate bark more often than did males. Males rarely stripped bark ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article

Title: Resource partitioning and competition among cervids in the northern Rocky Mountains: Journal: Journal of Applied Ecology; Authors: K. J. Jenkins, and R. G. Wright; Date: 1988; Summary: Resource partitioning patterns for elk, moose and white-tailed deer in Glacier National Park, Montana, were documented during a mild and a harsh winter. Also, the effects of winter on interspecific competition and its role on niche relationships were investigated. Spatial distribution and habitat selection were observed from January to May for two years. Vegetation characteristics were collected in the summers previous to each winter. Snow depths to quantify severity of winter and fecal samples to determine forage preferences were collected. ...; Agrovoc Control Words: Ungulates, Rangelands, Competition; View more details about this article

Title: Moose, microbes, and the boreal forests: Journal: BioScience; Authors: J. Pastor; Date: 1988; Summary: Browsing by moose (Alces alces) influences both the plant species present in the forest and the properties of the soil. Interactions between moose and the forest provide an example of how herbivores influence ecosystem properties over different trophic and spatial scales, and how complex feedback loops in these interactions can produce interesting effects. Soil processes affect moose by controlling the supply of browse and the rate at which plants recover from browsing. Herbivore's excrement carries organic matter and nutrients in to the soil and thereby affects microbi ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article

Title: The influence of moose on the structure and composition of Isle Royale forests: Journal: Canadian Journal of Forest Research; Authors: K. L. Risenhoover, and S. A. Maass; Date: 1987; Summary: Risenhoover and Maass measured the long term effects of moose (Alces alces) browsing on forest succession, in three forest types, aspen (Populus tremuloides)-birch (Betula papyrifera), aspen-birch-conifer, and spruce-birch-fir (Picea spp.) climax forest on the Isle Royale in Michigan. Browsing by moose in the spruce-birch-fir climax and aspen-birch-conifer forest types has retarded the vertical growth of palatable species and has slowed the rate of successional development. Only two species declined in abundance as a result of mo ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article

Title: Elk population fluctuations and their probable causes in the Snake Indian Valley of Jasper National Park: 1970-85: Journal: Alberta Naturalist; Authors: D. G. Dekker; Date: 1985; Summary: Dekker examined the decline of elk populations and other ungulates, in the Snake Indian Valley of Jasper National Park, by counting numbers of ungulates seen in this area from 1970 to 1985. The serious decline of Jasper Park's elk in the 1970's appear to have been the result of the cumulative impact of poor winter range, deep snowfalls, and increasing predation; whereas the recent increases of elk at the Devona site coincide with improved winter range and lowered predation. In contrast to the 1983 gains at Devona, Willow Creek elk did not increase after wolf numbers in the area crashed. Thi ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article

Title: Effects of herbivory by moose on flower and fruit production of Aralia nudicaulis: Journal: Journal of Ecology; Authors: J. Edwards; Date: 1985; Summary: Edwards studied the effects of grazing by moose (Alces alces andersoni) on the demography of the perennial herb (Aralia nudicaulis), an important component of the herbaceous flora in the boreal forest on Isle Royale National Park, Michigan, using the frequency and pattern of herbivory. Survivorship and reproduction of shoots of plants clipped experimentally was also measured. Moose browsed 63% of flowering shoots and 33% of vegetative shoots; the proportion of shoots eaten increased with shoot density from 11%, in quadrants with less than 9 shoots pe ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article

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