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 Aquatic Monocotyledons of North America written by Donald H. Les and published by CRC Press. This book was released on 2020-05-10 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together information on the natural history, ecology and systematics of North American aquatic monocotyledons. The book is an overview of the biology of major aquatic species by compiling information from numerous sources that lie scattered among the primary literature, herbarium databases, and other reference sources. Information on more than 300 species in 87 genera of monocotyledons will be included. Recent phylogenetic analyses will be incorporated. Although focusing specifically on North America, the cosmopolitan distribution of many aquatic plants should make this an attractive text to people working virtually anywhere outside of the region as well. Key Selling Features: The primary source of natural history information on aquatic plants Comprehensive lists of ecological associates Synthetic overview of systematic relationships of aquatic species and genera Practical information for rare and invasive plant managers Essential guide to facilitate wetland delineation
Download or read book Beavers Boreal Ecosystem Engineers written by Carol A. Johnston and published by Springer. This book was released on 2017-08-28 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridging the fields of ecosystem science and landscape ecology, this book integrates Dr. Carol Johnston's research on beaver ecosystem alteration at Voyageurs National Park. The findings about the vegetation, soils, and chemistry of beaver impoundments synthesized in the text provide a cohesive reference useful to wetland scientists, ecosystems and landscape ecologysts, wildlife managers, and students. The beaver, Castor canadensis, is an ecosystem engineer unequaled in its capacity to alter landscapes through browsing and dam building, whose population recovery has re-established environmental conditions that probably existed for millenia prior to its near extirpation by trapping in the 1800s and 1900s. Beavers continue to regain much of their natural range throughout North America, changing stream and forest ecosystems in ways that may be lauded or vilified. Interest in beavers by ecologists remains keen as new evidence emerges about the ecological, hydrological, and biogeochemical effects of beaver browsing and construction. There is a critical need for ecologists and land managers to understand the potential magnitude, persistence, and ecosystem services of beaver landscape transformation. The 88-year record of beaver landscape occupation and alteration documented by Dr. Carol Johnston and colleagues from aerial photography and field work provides a unique resource toward understanding the ecosystem effects and sustainability of beaver activity.
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 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.
Download or read book Modeling Moose Habitat Use and Fitness Consequences of Habitat Selection in Vermont USA written by Joshua Alexander Blouin and published by . This book was released on 2021 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: The moose (Alces alces) population has been declining across the northeastern US largely due to the impacts of winter ticks (Dermacentor albipictus). In epizootic years, an individual moose can host a staggering number of ticks (> 60,000), affecting both survival and reproduction. Habitat management may be used to improve the status of the moose population and health of individuals, but this requires knowledge of key habitat types used by moose and their spatial distribution. We investigated 1) habitat use by moose and 2) the fitness consequences of habitat selection during two critical winter tick life stages in northeastern Vermont. To assess habitat use, we combined more than 41,000 moose locations collected from radio-collared individuals (n = 74), recent land cover data, and high resolution, three-dimensional lidar data to develop Resource Utilization Functions that linked home range use to habitat characteristics by age, season, and sex. In general, the home ranges of female moose had proportionally more regenerative forest and canopy structure, while male home ranges consisted of mixed forests at higher elevations. Winter ticks tend to be fairly immobile throughout all life stages, and therefore their distribution patterns at any given time are shaped by the occurrence of moose across the landscape during the peak of two critical time periods: fall questing (when ticks latch onto a moose) and spring drop-off (when engorged female ticks detach from moose). We used a dynamic occupancy modeling framework to estimate habitat selection of female moose (n = 74) during these periods. Further, we investigated if habitat selection decisions made by adult females during the fall questing period influenced the survival of their offspring through the winter. Adult females whose offspring perished selected habitats during the questing period that were characterized by higher proportions of young mixed forests at higher elevations. In contrast, adult females whose offspring survived selected areas characterized by young deciduous habitats and higher proportions of mature evergreens forests and wetlands at lower elevations. The resulting maps of habitat use and resource selection define "hotspots" that are likely encouraging the deleterious effects of the tick-moose cycle. These hotspots presumably reflect areas with the highest moose and winter tick densities, which may be targeted for future management actions such as hunter harvest to reduce moose density and habitat manipulation or application of experimental treatments (e.g., fungus-based biopesticides) to reduce tick density. This study provides new information and tools that may help managers disrupt the tick-moose cycle and promote heathier and more persistent populations across the region.
Download or read book An Ecological Characterization of Rocky Mountain Montane and Subalpine Wetlands written by and published by . This book was released on 1986 with total page 348 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 Selected Wildlife and Habitat Features Inventory Manual for Use in Forest Management Planning written by Ranta, W. Bruce and published by Peterborough : Ontario Ministry of Natural Resources. This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The guidelines presented in this publication have been prepared to assist resource managers in the standardized inventory of habitat, and in some cases, populations of selected species of wildlife that potentially occur within the Crown forests of Ontario. The first section describes generalized methods and techniques, including information on personnel and training, planning of field surveys, wildlife habitat inventory and geographic information system technology, and recording the location of observations. The second and main section presents methodologies to identify and delineate featured species habitats. Chapters in this section provide methodologies regarding: moose aquatic feeding areas, bald eagle and osprey nests, and great blue heron colonies; moose winter habitat; white-tailed deer winter habitat; provincially featured birds, mammals, reptiles, and plants; woodland caribou winter habitat, calving and nursery sites; nests of red-shouldered hawk and great gray owl; southern flying squirrel habitats; West Virginia white butterfly habitats; and other vulnerable birds, mammals, and reptiles that can be locally featured.
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 Towns Ecology and the Land written by Richard T. T. Forman and published by Cambridge University Press. This book was released on 2019-02-07 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: A pioneering book highlighting the dynamic environmental dimensions of towns and villages and spatial connections with surrounding land.
Download or read book Stream Corridor Restoration written by and published by National Technical Info Svc. This book was released on 1998 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document is a cooperative effort among fifteen Federal agencies and partners to produce a common reference on stream corridor restoration. It responds to a growing national and international interest in restoring stream corridors.
Download or read book The Ecology and Management of Wetlands written by Donal D. Hook and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the proceedings of a symposium held at the College of Charleston, Charleston, South Carolina, USA, 16-20 June 1986. The seed for this symposium arose from a group of physiologists , soU scientists and biochemists that met in Leningrad, USSR in July 1975 at the 12th Botanical Conference in a Session organized by Professor B.B. Vartepetian. This group and others later conspired to contribute to a book entitled Plant Life in Anaerobic Environments (eds. D. D. Hook and R. M. M. Crawford, Ann Arbor Science, 1978). Several contributors to the book suggested in 1983 that a broad-scoped symposium on wetlands would be useful (a) in facilitating communication among the diverse research groups involved in wetlands research (b) in bringing researchers and managers together and (c) in presenting a com prehensive and balanced coverage on the status of ecology ami management of wetlands from a global perspective. With this encouragement, the senior editor organized a Plan ning Committee that encompassed expertise from many disciplines of wetland scientists and managers. This Committee, with input from their colleagues around the world, organized a symposium that addressed almost every aspect of wetland ecology and management.
Download or read book Ecology written by Michael Begon and published by John Wiley & Sons. This book was released on 2020-11-17 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: A definitive guide to the depth and breadth of the ecological sciences, revised and updated The revised and updated fifth edition of Ecology: From Individuals to Ecosystems – now in full colour – offers students and practitioners a review of the ecological sciences. The previous editions of this book earned the authors the prestigious ‘Exceptional Life-time Achievement Award’ of the British Ecological Society – the aim for the fifth edition is not only to maintain standards but indeed to enhance its coverage of Ecology. In the first edition, 34 years ago, it seemed acceptable for ecologists to hold a comfortable, objective, not to say aloof position, from which the ecological communities around us were simply material for which we sought a scientific understanding. Now, we must accept the immediacy of the many environmental problems that threaten us and the responsibility of ecologists to play their full part in addressing these problems. This fifth edition addresses this challenge, with several chapters devoted entirely to applied topics, and examples of how ecological principles have been applied to problems facing us highlighted throughout the remaining nineteen chapters. Nonetheless, the authors remain wedded to the belief that environmental action can only ever be as sound as the ecological principles on which it is based. Hence, while trying harder than ever to help improve preparedness for addressing the environmental problems of the years ahead, the book remains, in its essence, an exposition of the science of ecology. This new edition incorporates the results from more than a thousand recent studies into a fully up-to-date text. Written for students of ecology, researchers and practitioners, the fifth edition of Ecology: From Individuals to Ecosystems is anessential reference to all aspects of ecology and addresses environmental problems of the future.
Download or read book Cities of the Future written by Vladimir Novotny and published by IWA Publishing. This book was released on 2007-09-04 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is developed from and includes the presentations of leading international experts and scholars in the 12-14 July, 2006 Wingspread Workshop. With urban waters as a focal point, this book will explore the links between urban water quality and hydrology, and the broader concepts of green cities and smart growth. It also addresses legal and social barriers to urban ecological sustainability and proposes practical ways to overcome those barriers. Cities of the Future features chapters containing visionary concepts on how to ensure that cities and their water resources become ecologically sustainable and are able to provide clean water for all beneficial uses. The book links North American and Worldwide experience and approaches. The book is primarily a professional reference aimed at a wide interdisciplinary audience, including universities, consultants, environmental advocacy groups and legal environmental professionals.
Download or read book Wetlands Biodiversity and the Ramsar Convention written by A. J. Hails and published by . This book was released on 1996 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
