Download or read book Hair Mineralization of the Snowshoe Hare Lepus Americanus in Interior Alaska written by Stephen Stewart Wood and published by . This book was released on 1977 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Utilization of Snowshoe Hares Lepus Americanus in Interior Alaska written by Jerry Wolff and published by . This book was released on 1977 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Snowshoe Hare Studies written by Jeanette R. Ernest and published by . This book was released on 1974 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Snowshoe hare populations were studied from June 1970 to Dec. 1973 to determine density of snowshoe hares (Lepus americanus) in Interior Alaska in three study areas (Central, Fairbanks, and Delta) during the spring and fall, to correlate the estimated density with other indices of abundance, to determine annual productivity during different phases of the cycle, and to relate annual productivity to population trends.
Download or read book Survival and Activity Patterns of Snowshoe Hares Lepus Americanus in Interior Alaska written by Dashiell S. Feierabend and published by . This book was released on 2013 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Snowshoe hare (Lepus americanus) survival depends on the interaction of habitat characteristics with numerous biological and environmental variables. In boreal regions where considerable habitat heterogeneity exists, hares balance food availability with predation risk by moving among habitats seasonally, but it is largely unknown how often they move at shorter time scales. I investigated the seasonal effects of habitat, weather, and individual hare characteristics on survival and movement in two common but fundamentally different boreal habitats. Survival was highest in summer, for hares with higher body condition, and in black spruce rather than early successional forest. Hares moved among core use areas in different habitats twice per day on average, using more open areas at night when they were presumably feeding on preferred browse. Movement rates were lowest in mid-afternoon when hares appeared to be resting under dense cover. Behavior of individuals varied greatly with some hares repeatedly moving up to 1 km between defined patches in less than 5 hours and others remaining roughly within a 1 ha area. These findings illustrate the complexity of snowshoe hare ecology in an area where habitat variation promotes daily movement of hares among radically different habitats over a few hundred meters.
Download or read book Snowshoe Hare Report written by Alaska. Division of Game and published by . This book was released on 1972 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison of Snowshoe Hare Populations in Interior Alaska written by Bjorn Flora and published by . This book was released on 2002 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Snowshoe hares, Lepus americanus, are a 'keystone' prey species in northern boreal forests and experience population fluctuations of 8-11-years. Despite intense responses of both vegetation and predators to changes in hare densities, landscape-scale comparisons of hare populations in Alaska have been limited to qualitative descriptions. We conducted capture-recapture studies of snowshoe hares at 5 locales in the Tanana valley, from Tok in the east to Clear in the west from 1999 to 2002. Snowshoe hare densities were highest in 1999 (x=6.36 ha−1, SE=0.63) and declined thereafter. We were unable to detect declines in apparent survival during declining densities in our study populations. Movement distances did not vary temporally and persistence of individuals through declining densities may be associated positively with body condition at the peak. The relationship of hare pellets and hare densities was weak and limits the utility of this methodology for estimating hare densities in Interior Alaska"--Leaf 3.
Download or read book Wildlife Review written by and published by . This book was released on 1991 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Snowshoe Hare Densities in Post fire Vegetation written by Hans Mathias Eriksson and published by . This book was released on 2006 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The objective of this study was to investigate if patterns of snowshoe hare (Lepus americanus) densities in interior Alaska are influenced by post-fire successional stage. Stages of succession were classified using the proxy Time Since Last Fire (TSLF). I estimated snowshoe hare densities during the summers of 2003 and 2004 in 5 young (10-20 yrs) and 5 old (44-46 yrs) burns, each with an adjacent unburned control, using indirect distance sampling methods. Because indirect distance sampling has not previously been applied for snowshoe hares, I compared these results with a traditional mark-recapture analysis. Hare density estimates from both methods were not statistically different. I observed that hare densities were not higher in older stands relative to unburned habitat and that hare densities were highly variable in young stands. Therefore, my research suggests that TSLF was not suitable as a stand-alone indicator of quality of habitat for snowshoe hares. Other processes and factors such as fire severity can influence successional pathways and post-fire species composition, creating both temporal and spatial variability in the development of successional stages. I recommend that other covariates, such as fire severity, be researched to address the influence of vegetation succession on hare densities"--Leaf iii.
Download or read book Canadian Journal of Zoology written by and published by . This book was released on 1979 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Snowshoe Hare Filter to Spruce Establishment in Boreal Alaska written by Justin Olnes and published by . This book was released on 2018 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interior Alaska is a heterogeneous landscape within the circumpolar boreal forest and is largely composed of black and white spruce (Picea mariana and P. glauca). Improving our understanding of the factors affecting patterns in spruce regeneration is particularly important because these factors ultimately contribute to shaping the boreal forest vegetation mosaic. Herbivory by snowshoe hares (Lepus americanus) is one factor that likely drives patterns in spruce establishment. The interaction between spruce and snowshoe hares provides an opportunity to study how plant-herbivore interactions can affect succession, vegetation community composition, and consequently, how herbivory influences landscape heterogeneity. I explored how herbivory by snowshoe hares alters the survival and growth of spruce seedlings across Interior Alaska’s boreal forest. I hypothesized that the survival and growth rate of regenerating spruce is significantly reduced by snowshoe hare herbivory and that snowshoe hare herbivory influences the pattern of spruce establishment across time and space. To address this hypothesis, I conducted research in three distinct vegetation communities across the region: productive lowland floodplains (Chapters 1 and 2), treeline (Chapters 3 and 4), and recently burned stands of black spruce (Chapter 5). Together these five chapters reveal that snowshoe hares affect spruce establishment across much of boreal Alaska. Where and when hares are abundant, spruce can be heavily browsed, resulting in suppressed seedling growth and increased seedling mortality. The results of these studies also reveal a consistent and predictable pattern in which this plant-herbivore interaction takes place. The snowshoe hare filter acts as a ‘spatially aggregating force’ to spruce establishment, where the potential for optimal regeneration is highest during periods of low hare abundance and where hares are absent from the landscape.
Download or read book Snowshoe Hares in Alaska written by Thomas P. O'Farrell and published by . This book was released on 1961* with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seasonal Sympatho adrenal and Metabolic Responses to Cold in the Alaskan Snowshoe Hare lepus Americanus Macfarlani written by Dale D. Feist and published by . This book was released on 1975 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phenetic Variation in the Snowshoe Hare Lepus Americanus written by David W. Nagorsen and published by . This book was released on 1983 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Snowshoe Hare written by I. B. Keith and published by . This book was released on 2005 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The snowshoe hare (Lepus americanus), one of our commonest forest mammals, is found only in North America. This document presents a description of the species and provides information on habitat and habits, range, feeding, breeding, and conservation measures.
Download or read book Snowshoe Hares in Alaska Home Range and Aspects of Population and Natural History in Interior Alaska by Thomas P O Farrell written by Thomas P. O'Farrell and published by . This book was released on 196? with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Snowshoe Hare written by Sherry Wise and published by . This book was released on 1986 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Snowshoe Hare Lepus Americanus Habitat in Western Massachusetts written by Kathryn Ann Converse and published by . This book was released on 1981 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
