Download or read book 2013 Aerial Moose Survey Final Results written by Glenn D. DelGiudice and published by . This book was released on 2013* with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 2013 Aerial Moose Survey Final Results written by and published by . This book was released on 2013 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aerial Moose Survey Results written by Minnesota. Department of Natural Resources and published by . This book was released on 1991 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distribution And Abundance Of Wolves In Minnesota 2012 13 written by John Erb and published by . This book was released on 2013 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aerial Moose Surveys in Minnesota 1962 1986 written by Minnesota. Department of Natural Resources. Forest Wildlife Populations and Research Group and published by . This book was released on 1986* with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Moose Population Aerial Survey written by New Brunswick. Department of Natural Resources and Energy and published by . This book was released on 1993 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aerial Moose Survey Duke River Valley written by C. E. Hume and published by . This book was released on 1986 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical and Technological Alternatives for Aerial Moose Alces Alces Survey written by Alexander B. Ritz and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Moose (Alces alces) aerial surveys provide the information needed for effective management only when they are accurate and precise. I aimed to identify gaps in and improve understanding of aerial moose surveys in North America by comparing survey techniques and exploring an application of thermal camera technology. Current aerial moose survey methods are compared in a jurisdictional review, including approaches to correcting visibility bias and a discussion of implementation of new technological advancements. Stratified random block (SRB) surveys are the most common, alongside distance sampling (DS) and other survey types. Thermal imagery, Geographic Information Systems (GIS), and Global Positioning Systems (GPS) have been implemented into survey designs to improve the accuracy of estimates or logistics of the survey. Using a virtual population of moose derived from Newfoundland aerial moose survey observations, a simulation of SRB and two DS surveys is used to compare accuracy, precision, and effort of each survey type. DS survey transects are spaced 1000- and 5559-m apart, and both survey types are sampled at high (~3 moose/km2) and medium (~1 moose/km2) densities. Accuracy is used as the bias in the simulation and statistically significant differences in precision and effort occur for each survey type. The final chapter focuses on the use of thermal and colour cameras for locating moose and explores a 22-km2 study site located at La Verendrye Provincial Park, Ontario. Collared moose travelling from Grand Portage Indian Reservation in Minnesota are visible in colour and thermal orthophotos. Moose thermal hotspots are computed from the thermal imagery, in a automated model. Hotspots were then examined manually. Two thermal hotspots over open water are misidentified as moose and 19 of 20 moose in the imagery were correctly identified by the automated search. Management implications of the study are that DS is a viable alternative to SRB surveys and that thermal aerial imagery is limited to animal counts without correction. Under the simulated conditions, DS performs comparably to SRB surveys and is possibly less expensive, or at least less variable in cost. Manual identification of moose by viewing colour imagery is still required to complement a thermal-imagery system, and sexing moose is not achievable from orthophotos alone.

Download or read book Evaluating Tools Used to Estimate and Manage Browse Available to Wintering Moose on the Copper River Delta Alaska written by Sharon E. Smythe and published by . This book was released on 2015 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ungulates comprise some of the most well researched and intensely managed wildlife populations on earth. As such, they are recognized as ideal study subjects for developing and modifying management tools or theories (Danell et al. 1994, Shipley 2010). An introduced moose (Alces alces gigas) population on the Copper River Delta (CRD; Delta) of south-central Alaska functions as a valuable resource for the residents of Cordova and an isolated research population on which to test managerial techniques. Since its introduction (1949-1958), the founding population of 23 moose has grown to over 830 in 2013, divided into two sub-populations. However, in 1964, the largest earthquake recorded in U.S. history (9.2 magnitude) uplifted the Delta by 1.0-4.0 m, initiating delta-wide changes in hydrology, vegetation distributions, and successional processes. The proportion of stands dominated by woody species, especially alder (Alnus viridis sinuata) and spruce (Picea sitchensis), increased visibly. Furthermore, previous research (1987-89) observed that 90% of the moose on the western region of the Delta wintered within 9-24% of the total land area, possibly restricting their available winter browse. Because moose diets on the CRD are dominated by willows (Salix spp.), managers were concerned that the combined effects of a restricted winter range and earthquake-initiated vegetation changes would negatively influence the population. Managers have responded to this concern by 1) supporting work to estimate the nutritional carrying capacity (NCC; i.e., the forage available to a population within a specified area and time) of the Delta, and 2) by exploring the feasibility of mechanical treatment as a means of stimulating browse production for the moose. Thus, the objectives of this thesis were to 1) explore the factors influencing NCC for moose on the west CRD while combining updated digital and field-collected data to estimate NCC, and 2) to assess the effects of mechanical treatment on the production of moose browse across stand types and over time. We collected field data and evaluated differences in the past (1988-89) and present (2012-13) biomass-predicting regression equations for two willow species (Barclay's and Hooker's willow, Salix barclayi and hookeriana) used within NCC models to determine 1) whether past and present models of Barclay's willow predicted similarly and 2) whether Hooker's and Barclay's willow differed in average available biomass, nutritional quality, and utilization by moose. The linear coefficients for the current (2013) Barclay's willow, Hooker's willow, and combined equations were 2.2x, 1.6x, and 1.9x larger, respectively, than that derived from the 1988 model for Barclay's willow (which possibly included Hooker's willow data). Thus, willows on the CRD may now be supporting more biomass per stem than predicted by prior models. Hooker's and Barclay's willow did not differ in mean available biomass, nutritional values, or utilization rates. These results suggest a need to evaluate the accuracy of older allometric regressions, though separate identification of the visually-similar Barclay's and Hooker's willow may be unnecessary for future biomass-estimating efforts on the CRD. To further explore the factors influencing the biomass available to moose and their associated NCC estimates, we compared 5 NCC model types across 4 winter ranges and under 3 winter-severity scenarios for the western CRD moose population. We conducted a sensitivity analysis (Sx) of our final model to determine the relative influence of factors affecting NCC estimates. Lastly, we compared current (2012-13) browse available biomass, stand type areas (2011), and NCC results to those obtained by past research (1987-89, MacCracken et al. 1997 and 1959/1986, Stephenson et al. 2006) to determine changes over time, while evaluating the effects of models incorporating satellite-based estimates of stand areas and forage nutritional values on NCC estimates. Because recent aerial survey observations suggest expansion of the moose winter range, our final model estimated NCC between 2,198-3,471 moose depending on winter severity within a winter range encompassing the entire west Delta. These results suggest the current western moose population (approximately 600 in 2013) is below NCC. Model components with the largest and smallest Sx were snow depth and tannin- and lignin-caused reductions in forage nutritional quality, respectively. Changes from 1987-2013 in available biomass of forage species ranged from -66-493%, while changes from 1959-2011 in stand type areas ranged from -60-661%. Overall, NCC estimates only declined by 2% from 1959-2013, however inclusion of forage nutritional quality in models reduced NCC estimates by 60%. Lastly, we assessed the use of hydraulic-axing (i.e., hydro-axing) as tool for increasing the available willow biomass. We evaluated treatment effects on biomass, height, nutritional quality (crude protein, lignin, and tannin levels), utilization, and snow burial of the winter forage species within 3 winter-severity scenarios. Sites were treated in 4 winters (1990-92, 2008, 2010, and 2012) within 5 stand types in 20 locations varying from 0.86-63.40 ha in size. Results indicate few significant differences relative to controls, though treatment significantly increased the ratio of willow to alder. Our results may be limited by sample sizes (n = 1-9 per stand type or treatment year) as visual comparison suggests treatment via hydraulic-axing may be an effective method for increasing willow biomass without influencing nutritional quality. However, willows 20-23 years post-treatment are still significantly shorter than untreated willows (P = 0.03). Thus, treatment may result in decreased forage available to moose in severe winters. Management concerns regarding continued earthquake-initiated changes in vegetation distributions and successional processes prompted our investigation. However, studies on the vegetation dynamics of the CRD suggest the vegetation distribution of the Delta may be relatively stable (Boggs 2000, Thilenius 2008). If so, our current estimates of NCC suggest the west Delta can support a larger moose population than is currently present. Hydro-axing may not be necessary to ensure the future of the moose population, though it could be used to counter increases in alder (Alnus viridis sinuata) which are likely within certain successional sequences. However, together with earthquakes, the processes determining the future forage available on the CRD include complex, interactive forces such as glaciers, the Copper River, oceanic tides, and zoological- and human-caused influences. These forces and their effects on the vegetation create a dynamic ecosystem for the moose population, are difficult to predict, and may be further complicated by climate change. As a result, application of any managerial tool may be temporary and often difficult. However, this guarantees a constant need for further revision and redevelopment of the tools used to manage the moose population, ensuring that the moose of the CRD will remain an important resource for researching and refining ungulate management worldwide.

Download or read book Aerial Moose Survey October 1983 Duke River written by Douglas W. Burles and published by . This book was released on 1983 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 1984 Aerial Moose Survey Denali National Park and Preserve written by Francis J. Singer and published by . This book was released on 1984* with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Marine Fisheries Review written by and published by . This book was released on 2015 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book State Wildlife Management and Conservation written by Thomas J. Ryder and published by JHU Press. This book was released on 2018-03-01 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: An illuminating look at the challenges and triumphs of state wildlife professionals at the forefront of the fight to protect the American wilderness. The adage "think globally but act locally" defines the work of American wildlife professionals. Their contributions, from remote outposts to major cities, guard the natural world of the entire country. In State Wildlife Management and Conservation, Thomas J. Ryder brings together wildlife leaders from practical, policy, and academic backgrounds to tell the story of state wildlife agencies, chronicling their efforts to restore and protect our nation's natural resources. Reflecting the core principle of the profession—that the public, not any individual, owns wildlife—the book explains how this tenet became law, laying the groundwork for the history of state-level wildlife management that follows. The authors cover key issues, including the limits of private land ownership, the funding of wildlife regulation, the nuances of humanwildlife conflict, the role of law enforcement, disease control efforts, and the challenges involved in balancing the perspectives of hunters, nonhunters, and animal rights advocates. Detailed essays also discuss state management techniques for a wide range of wildlife, including big game and migratory birds. State Wildlife Management and Conservation is a comprehensive, nationwide account of state management efforts. It will aid professors training the next generation of wildlife professionals, students hoping to enter the profession, and anyone working with wildlife to develop a more sophisticated understanding of what it means to be a state wildlife biologist. Contributors: M. Carol Bambery, Gordon R. Batcheller, Chad J. Bishop, Vernon C. Bleich, Dale Caveny, David K. Dahlgren, Daniel J. Decker, Karie L. Decker, Thomas A. Decker, Billy Dukes, John D. Erb, John R. Fischer, Ann B. Forstchen, Jonathan W. Gassett, Parks Gilbert, Colin M. Gillin, Tim L. Hiller, Daniel Hirchert, Michael W. Hubbard, Mark Humpert, Scott Hygnstrom, Robert P. Lanka, Richard E. McCabe, Jennifer Mock-Schaeffer, Brian Nesvik, Shaun L. Oldenburger, John F. Organ, Ronald J. Regan, Michael A. Schroeder, William F. Siemer, Christian Smith, Randy Stark, Gary J. Taylor, J. Scott Taylor, Daniel J. Thompson, Kurt VerCauteren, Mark P. Vrtiska, H. Bryant White, Steven A. Williams

Download or read book Self Reliant Pilot written by Bill Quirk and published by Publication Consultants. This book was released on 2015-07-13 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Color-illustrated, Self-Reliant Pilot focuses on flying small taildragger aircraft and landing them in remote and challenging terrain in wild Alaska. It displays the inspiration of flying in Alaska, defining who are the incredible pilots that fly Alaska's backcountry and showing the training necessary to become the best pilot you can be. It discusses the weather related problems of flying in Alaska and shows ways to minimize the difficulties. It also discusses the elevated aircraft accident rate in Alaska and how to substantially reduce such incidences. Self-Reliant Pilot serves as a primer for Alaskan style training. Once a pilot learns how to train according to the book, additional or new training can be carried out, without difficulty, because the pilot has already learned the foundation for training. Self-Reliant Pilot is a classical training manual because it is written in a contemporary style that is always current. As time goes forward, the strategy for training will remain the same. Seventy-five distinctive narratives in the last part of the book show general aviation topics and authenticated experiences of a skilled pilot flying Alaska's uninhabited backcountry. The narratives include the inspiration of flying Alaska's coastal mountains, glaciers, and fjords; flying and landing in Alaska's backcountry in winter on skis and in summer on Bushwheels; flying wildlife surveys and observing rare wildlife encounters.

Download or read book North Dakota Outdoors written by and published by . This book was released on 2015-07 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New century wolf conservation and conflict management written by Joseph K. Bump and published by Frontiers Media SA. This book was released on 2023-05-12 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Federal Register written by and published by . This book was released on 2013-11 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: