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 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 Landscape Factors Influencing Moose Alces Americanus Density and Browsing in Newfoundland Canada written by Stacey Anne Camus and published by . This book was released on 2013 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Large Herbivore Ecology Ecosystem Dynamics and Conservation written by Kjell Danell and published by Cambridge University Press. This book was released on 2006-05-25 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most large herbivores require some type of management within their habitats. Some populations of large herbivores are at the brink of extinction, some are under discussion for reintroduction, whilst others already occur in dense populations causing conflicts with other land use. Large herbivores are the major drivers for forming the shape and function of terrestrial ecosystems. This 2006 book addresses the scientifically based action plans to manage both the large herbivore populations and their habitats worldwide. It covers the processes by which large herbivores not only affect their environment (e.g. grazing) but are affected by it (e.g. nutrient cycling) and the management strategies required. Also discussed are new modeling techniques, which help assess integration processes in a landscape context, as well as assessing the consequences of new developments in the processes of conservation. This book will be essential reading for all involved in the management of both large herbivores and natural resources.
Download or read book Wildlife and Landscape Ecology written by John A. Bissonette and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: While the research and management of wildlife has traditionally emphasised studies at smaller scales, it is now acknowledged that larger, landscape-level patterns strongly influence demographic processes in wild animal species. This book is the first to provide the conceptual basis for learning how larger scale patterns and processes can influence the biology and management of wildlife species. It is divided into three sections: Underlying Concepts, Landscape Metrics and Applications and Large Scale Management.
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 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 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 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 Wildland Fire in Ecosystems written by and published by . This book was released on 1998 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioenergetics and Behavior of Moose Alces Alces in the Aspen dominated Boreal Forest written by Lyle Alfred Renecker and published by . This book was released on 1987 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Effects Of Food Quantity And Tree Species Composition On Moose alces Alces Browsing In Scots Pine Plantations written by R. Heikkila and published by . This book was released on 1993 with total page 18 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 Annales zoologici Fennici written by and published by . This book was released on 2000 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Landscape Disturbance on the Population Dynamics and Behaviour of Moose Alces Alces in the Greater Pukaskwa Ecosystem Ontario written by and published by . This book was released on 2001 with total page 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.
