Download or read book Effects of Hyperabundant Moose Alces Alces on Stream Ecosystem Functioning and Structure in Cape Breton Highlands Nova Scotia written by Jessica MacSween and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Terrestrial consumers can influence forest regeneration, but few studies have investigated the impacts of terrestrial consumers on freshwater ecosystems. I investigated the potential for cross-ecosystem effects of hyperabundant moose on stream ecosystems in the Cape Breton Highlands, Nova Scotia. I predicted that watersheds with higher moose impacts would have higher stream temperatures, total nitrogen, electrical conductivity, periphyton biomass, and macroinvertebrate abundances. I analyzed existing long-term data on 3rd and 4th order streams and conducted a field study on 1st and 2nd order streams to test for crossecosystem impacts of moose in the Cape Breton Highlands. I found evidence for moose impacts on total nitrogen and electrical conductivity. However, I found no evidence for higher stream temperatures and periphyton biomass, with limited evidence of moose impacts on macroinvertebrate abundances. This study provides insight into the effects of large ungulates within and across boreal forest ecosystems with potential implications for landscape-scale management of hyperabundant ungulates.

Download or read book Moose Alces Alces Browse Availability and Utilization in Cape Breton Highlands National Park written by Sean Basquill and published by Halifax, N.S. : Parks Canada Atlantic Region. This book was released on 1997 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes and presents results from a spring/summer 1996 moose browsing survey conducted to determine the availability and utilization of winter browse in Cape Breton Highlands National Park. Observations are made regarding differences in forest structure and browsing intensity between various biotopes of the Park; the percentage utilization of available biomass by moose; the areas where moose concentrated their efforts; and the influence of moose winter browsing on the functional dynamics of Park forests.

Download or read book Moose Alces Alces Browse Availability and Utilization in Cape Breton Highlands National Park written by Parks Canada and published by . This book was released on 1997 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Climate Change on Moose Populations written by Robert Stewart Rempel and published by . This book was released on 2012-10 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The effect of climate change on moose (Alces alces) is of interest within the Ontario Ministry of Natural Resources (OMNR) because of the potential role this species plays in the conservation of woodland caribou (Rangifer tarandus caribou) and possible losses of recreational and economic opportunities if moose populations decrease. Moose have numerous direct and indirect linkages to climate and represent a potentially useful indicator of how climate change is affecting wildlife populations in general. The objective of this vulnerability study was to utilize a plausible, parsimonious, systems-level model of moose population dynamics to explore the response of moose populations to climate projections in the northeast Clay Belt region of Ontario (Ecodistrict 3E-1). Scenario analysis was conducted using a variety of assumptions about future biotic and abiotic interactions under Intergovernmental Panel on Climate Change (IPCC) scenarios A2 and B1 (for details see IPCC 2000)."--publisher.

Download or read book Life History Strategies in Moose Alces Alces written by Håkan Sand and published by . This book was released on 1996 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Examination of the Absence of Established Moose Alces Alces Populations in Southeastern Cape Breton Island Nova Scotia written by Helen L. Kwan and published by . This book was released on 2005 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Introduced Moose Alces Alces on Vegetation Composition Nutrient Dynamics and Decomposition Rates in Boreal Forest Ecosystems in Newfoundland Canada written by Nichola Mary Ellis and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Globally, consumers affect ecosystem processes including nutrient dynamics. Herbivores have been known to slow nutrient flow in boreal forest ecosystems. I examined the effects of introduced moose on disturbed forests of Newfoundland, Canada by conducting a field experiment during August - November 2014 in 20 paired moose exclosure-control plots. I tested whether moose browsing directly and indirectly affected forests by measuring plant species composition, litter quality and quantity, soil quality, and decomposition rates in areas moose exclosure-control plots. I analyzed moose effects using linear mixed effects models and found evidence indicating that moose reduce plant height and litter biomass affecting the availability of carbon, nitrogen, and phosphorus. However, plant diversity, soil quality, and litter decomposition did not differ between moose exclosures and controls. Moose in Newfoundland directly influence plant regeneration and litter biomass while indirect effects on soil ecosystems may be limited by time, disturbance, and climate.

Download or read book Population Genetic Structure and the Effect of Founder Events on the Genetic Variability of Moose Alces Alces in Canada written by Hugh G. Broders and published by . This book was released on 1998 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Climate Change on Moose Populations written by Robert Stewart Rempel 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 Moose Alces Alces and Their Influence Upon Terrestrial Ecology in the Copper River Watershed Alaska written by Christopher Trevor Hammersmark and published by . This book was released on 2002 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessing the Impacts of Moose induced Habitat Change on a Forest Bird Community written by Lauren Frances Rae and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest songbirds are sensitive to habitat disturbances that result in changes to forest structure and composition. In Newfoundland, Canada, browsing by hyperabundant, non-native moose (Alces alces) has caused failed regeneration across extensive areas of forest following disturbance. I examined the impact of these habitat changes at multiple spatial scales on forest bird occurrence and species richness within Gros Morne National Park based on point counts that incorporated both silent intervals and intervals during which black-capped chickadee (Poecile atricapillus) mobbing calls were broadcast. Early successional bird species we more likely to occur with increased failed regeneration on the landscape. Some forest habitat generalists were less likely to occur with increased failed regeneration cover at the local scale. Comparing detection probabilities across silent and playback intervals for 17 species, I found that playbacks increased detection rates for seven species, and either had no effect or decreased detection rates for the remaining ten species.

Download or read book Genetic Variation in a Large Game Species the Moose Alces Alces written by Christina Reuterwall and published by . This book was released on 1980 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dynamic Interactions Between Trees and Foraging Moose Alces Alces written by Roger Bergström and published by . This book was released on 1987 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Timber Management Practices on the Use of Aquatic Feeding Areas by Moose Alces Alces in the Great Lakes St Lawrence and Boreal Transition Forests of Central Ontario microform written by Jennifer Chikoski and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study compared the use of feeding sites by moose along selection cutting in the Algonquin Park Forest Management Unit, uniform shelterwood cutting in the French-Severn FMU, and clearcutting in the Spanish FMU.--Abstract.

Download or read book Genetic Population Structure of Moose Alces Alces at Multiple Spatial Scales written by Kevin E. Colson and published by . This book was released on 2013 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spatial heterogeneity is an important feature of populations and species. Here, I examine well - characterized populations of moose (Alces alces) in southeastern Alaska for population structure on the inter-population and intra-population scale using genetic techniques. Within inter-population scale, I find that the moose populations of southeastern Alaska have considerable structure, exceeding that found in the remainder of exceeding Alaska, and comparable to introduced populations that went through major bottlenecks. I find that founder effects are likely a major source for creating genetic differentiation between populations. This differentiation is then maintained through limited dispersal, likely due to the complex topography of the region. I also provide new evidence that the subspecific boundary between A. a. andersoni and A. a. gigas is further north than previously appreciated. On the intra-population scale, I use two well-studied moose populations, and using characterized calving areas, find strong genetic structure among both populations within a small (

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 The North American Model of Wildlife Conservation written by Shane P. Mahoney and published by JHU Press. This book was released on 2019-09-10 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: The foremost experts on the North American Model of Wildlife Conservation come together to discuss its role in the rescue, recovery, and future of our wildlife resources. At the end of the nineteenth century, North America suffered a catastrophic loss of wildlife driven by unbridled resource extraction, market hunting, and unrelenting subsistence killing. This crisis led powerful political forces in the United States and Canada to collaborate in the hopes of reversing the process, not merely halting the extinctions but returning wildlife to abundance. While there was great understanding of how to manage wildlife in Europe, where wildlife management was an old, mature profession, Continental methods depended on social values often unacceptable to North Americans. Even Canada, a loyal colony of England, abandoned wildlife management as practiced in the mother country and joined forces with like-minded Americans to develop a revolutionary system of wildlife conservation. In time, and surviving the close scrutiny and hard ongoing debate of open, democratic societies, this series of conservation practices became known as the North American Model of Wildlife Conservation. In this book, editors Shane P. Mahoney and Valerius Geist, both leading authorities on the North American Model, bring together their expert colleagues to provide a comprehensive overview of the origins, achievements, and shortcomings of this highly successful conservation approach. This volume • reviews the emergence of conservation in late nineteenth–early twentieth century North America • provides detailed explorations of the Model's institutions, principles, laws, and policies • places the Model within ecological, cultural, and socioeconomic contexts • describes the many economic, social, and cultural benefits of wildlife restoration and management • addresses the Model's challenges and limitations while pointing to emerging opportunities for increasing inclusivity and optimizing implementation Studying the North American experience offers insight into how institutionalizing policies and laws while incentivizing citizen engagement can result in a resilient framework for conservation. Written for wildlife professionals, researchers, and students, this book explores the factors that helped fashion an enduring conservation system, one that has not only rescued, recovered, and sustainably utilized wildlife for over a century, but that has also advanced a significant economic driver and a greater scientific understanding of wildlife ecology. Contributors: Leonard A. Brennan, Rosie Cooney, James L. Cummins, Kathryn Frens, Valerius Geist, James R. Heffelfinger, David G. Hewitt, Paul R. Krausman, Shane P. Mahoney, John F. Organ, James Peek, William Porter, John Sandlos, James A. Schaefer