PDF
... Three factors affect habitat – fire, habitat conversion and grazing. Constriction in sage grouse range, habitat fragmentation and degradation seriously affect sage grouse populations (Beck, Mitchell and Maxfield). Fire often converts land from perennial range (suitable habitat) to annual grassland, ...
... Three factors affect habitat – fire, habitat conversion and grazing. Constriction in sage grouse range, habitat fragmentation and degradation seriously affect sage grouse populations (Beck, Mitchell and Maxfield). Fire often converts land from perennial range (suitable habitat) to annual grassland, ...
Wolverine foraging strategies in a multiple-use landscape
... 2001; Cardillo et al. 2004), they have to be integrated in multiple-use landscapes in order to be conserved in viable populations. Before such integration can occur, strategies must be developed that allow humans to coexist with large carnivores. The recent recolonization of wolves and bears to thei ...
... 2001; Cardillo et al. 2004), they have to be integrated in multiple-use landscapes in order to be conserved in viable populations. Before such integration can occur, strategies must be developed that allow humans to coexist with large carnivores. The recent recolonization of wolves and bears to thei ...
PDF
... The declining population of sage grouse (Centrocercus urophasianus) in western North America has prompted concern on behalf of biologists and game bird hunters since the early 1900s. Estimated decline from historic (pre-European settlement) to recent times ranges from 69 to 99 percent of the populat ...
... The declining population of sage grouse (Centrocercus urophasianus) in western North America has prompted concern on behalf of biologists and game bird hunters since the early 1900s. Estimated decline from historic (pre-European settlement) to recent times ranges from 69 to 99 percent of the populat ...
Presentation
... The vision for the Fortymile herd and its ecosystem: • To restore the abundance and diversity of wildlife in this ecosystem, of which the Fortymile herd is the most important indicator species. • To promote healthy wildlife populations for their intrinsic value, as well as consumptive and nonconsump ...
... The vision for the Fortymile herd and its ecosystem: • To restore the abundance and diversity of wildlife in this ecosystem, of which the Fortymile herd is the most important indicator species. • To promote healthy wildlife populations for their intrinsic value, as well as consumptive and nonconsump ...
greater sage-grouse (centrocercus urophasianus) select nest
... ABSTRACT.—Greater Sage-Grouse (Centrocercus urophasianus; hereafter “sage-grouse”) distribution and abundance in western North America has declined over the last century. Depredation of nests and predation of chicks are the most influential factors limiting sage-grouse productivity. We compared avia ...
... ABSTRACT.—Greater Sage-Grouse (Centrocercus urophasianus; hereafter “sage-grouse”) distribution and abundance in western North America has declined over the last century. Depredation of nests and predation of chicks are the most influential factors limiting sage-grouse productivity. We compared avia ...
Selection of Northern Yellowstone Elk by Gray Wolves and Hunters
... older females with low reproductive values. The mean age of adult females killed by hunters throughout the study period was 6.5 years, whereas the mean age of adult females killed by wolves was 13.9 years. Hunting exerted a greater total reproductive impact on the herd than wolf predation. The combi ...
... older females with low reproductive values. The mean age of adult females killed by hunters throughout the study period was 6.5 years, whereas the mean age of adult females killed by wolves was 13.9 years. Hunting exerted a greater total reproductive impact on the herd than wolf predation. The combi ...
Assessment of Canada Lynx Research and
... ABSTRACT The ecology of Canada lynx (Lynx canadensis) and their main prey, snowshoe hares (Lepus americanus), is poorly understood in southern Canada and the contiguous United States compared to the boreal forest of Canada and Alaska, USA, where both species are well studied. However, given recent l ...
... ABSTRACT The ecology of Canada lynx (Lynx canadensis) and their main prey, snowshoe hares (Lepus americanus), is poorly understood in southern Canada and the contiguous United States compared to the boreal forest of Canada and Alaska, USA, where both species are well studied. However, given recent l ...
Report to SAZ - Durham University Community
... the time periods over which these should be detected must also be defined. We suggest that the goal be defined as follows: Ungulate monitoring in SAZ will provide estimates of the absolute abundance in winter of ungulates in the four major habitat zones. At least 1000 km of surveys will be conducted ...
... the time periods over which these should be detected must also be defined. We suggest that the goal be defined as follows: Ungulate monitoring in SAZ will provide estimates of the absolute abundance in winter of ungulates in the four major habitat zones. At least 1000 km of surveys will be conducted ...
Rewilding Europe proceedings
... where rural land is being abandoned or in the low human density regions such as the extensive forests of Scandinavia as discussed by Mats Niklasson. Difficulties finding enough space for rewilding and curbing our eagerness to manage nature must also be considered when integrating rewilding into a we ...
... where rural land is being abandoned or in the low human density regions such as the extensive forests of Scandinavia as discussed by Mats Niklasson. Difficulties finding enough space for rewilding and curbing our eagerness to manage nature must also be considered when integrating rewilding into a we ...
Eastern Wolf (Canis lupus lycaon) - Registre public des espèces en
... The Eastern Wolf (Canis lupus lycaon) is listed as a species of special concern under Schedule 1 of the Species at Risk Act (SARA), which requires the drafting of a management plan. The taxonomic status of the Eastern Wolf has been a subject of debate, and recent progress in genetic research has led ...
... The Eastern Wolf (Canis lupus lycaon) is listed as a species of special concern under Schedule 1 of the Species at Risk Act (SARA), which requires the drafting of a management plan. The taxonomic status of the Eastern Wolf has been a subject of debate, and recent progress in genetic research has led ...
Illinois Biodiversity Basics
... and interdependent web of life, and we’re just beginning to understand our place in it. We’re beginning to realize how dependent we are on biodiversity for most, if not all, our needs. We’re also beginning to realize that a significant loss of biodiversity could seriously undermine our long-term eco ...
... and interdependent web of life, and we’re just beginning to understand our place in it. We’re beginning to realize how dependent we are on biodiversity for most, if not all, our needs. We’re also beginning to realize that a significant loss of biodiversity could seriously undermine our long-term eco ...
Amargosa Vole
... In a 6-year study in Contra Costa County, California, harvest mouse populations increased on study sites when voles occurred in low densities, but declined to very low numbers or extirpation when vole populations irrupted (Heske et al. 1984). Heske et al. (1984) concluded that severe behavioral inte ...
... In a 6-year study in Contra Costa County, California, harvest mouse populations increased on study sites when voles occurred in low densities, but declined to very low numbers or extirpation when vole populations irrupted (Heske et al. 1984). Heske et al. (1984) concluded that severe behavioral inte ...
The lynx in Britain`s past, present and future
... highest concentrations of deer, they could bring about a substantial reduction in localised deer densities by changing deer behaviour. Young conifer plantations and areas of naturally regenerating woodland often attract high densities of roe deer and are vulnerable to browsing damage, while thicket ...
... highest concentrations of deer, they could bring about a substantial reduction in localised deer densities by changing deer behaviour. Young conifer plantations and areas of naturally regenerating woodland often attract high densities of roe deer and are vulnerable to browsing damage, while thicket ...
Do Squirrels Matter? - Writing Guide for SNL Students
... survival. “There is a range of personalities in squirrels because the personality that is better for fitness depends on the year,” McAdam said. (Michigan State University) Observing squirrel personalities sometimes, unfortunately, leads to witnessing injury and sickness. Should a human intervene to ...
... survival. “There is a range of personalities in squirrels because the personality that is better for fitness depends on the year,” McAdam said. (Michigan State University) Observing squirrel personalities sometimes, unfortunately, leads to witnessing injury and sickness. Should a human intervene to ...
Feasibility Assessment for Reinforcing Pine Martens in England and
... England and Wales. This report provides an initial assessment of the feasibility of undertaking translocations to reinforce existing populations that have failed to recover naturally. The pine marten, Martes martes, was once widespread throughout Britain but during the 18th and 19th century pine mar ...
... England and Wales. This report provides an initial assessment of the feasibility of undertaking translocations to reinforce existing populations that have failed to recover naturally. The pine marten, Martes martes, was once widespread throughout Britain but during the 18th and 19th century pine mar ...
habitat use and selection by moose and elk in the besa
... 2002). MCPs, which link use points on the outside edges of a convex polygon encompassing all points, tend to overestimate range sizes for animals that have infrequent movements away from a centralized area. Kernels, calculated from the 95% probability density of all locations, delineate core areas o ...
... 2002). MCPs, which link use points on the outside edges of a convex polygon encompassing all points, tend to overestimate range sizes for animals that have infrequent movements away from a centralized area. Kernels, calculated from the 95% probability density of all locations, delineate core areas o ...
Dietary breadth of grizzly bears in the Greater Yellowstone Ecosystem
... remoteness, and the protections afforded by national park, national forest, and national wildlife refuge status over a large portion of the area, the GYE grizzly bear population was the only one of these 3 isolated populations that persisted in viable numbers after the 1960s (Cowan et al. 1974). In ...
... remoteness, and the protections afforded by national park, national forest, and national wildlife refuge status over a large portion of the area, the GYE grizzly bear population was the only one of these 3 isolated populations that persisted in viable numbers after the 1960s (Cowan et al. 1974). In ...
Biomass Flow and Scavengers Use of Carcasses after Re
... snow [12]. However, predator kills are often consumed to a large extent by the predator itself [13], forcing scavengers to rely more on animals that have died from other causes than predation [1]. Scavenging kills by large predators is also a risky behaviour due to intra-guild predation [14]. Wolves ...
... snow [12]. However, predator kills are often consumed to a large extent by the predator itself [13], forcing scavengers to rely more on animals that have died from other causes than predation [1]. Scavenging kills by large predators is also a risky behaviour due to intra-guild predation [14]. Wolves ...
Action Plan - Environment and Natural Resources
... management challenge involves the impacts of oil and gas development, along with other land use activities such as forestry, tourism and mining, and all of their interactions (or cumulative effects of all the impacts). Endangered species – A species facing imminent extirpation or extinction. Extinct ...
... management challenge involves the impacts of oil and gas development, along with other land use activities such as forestry, tourism and mining, and all of their interactions (or cumulative effects of all the impacts). Endangered species – A species facing imminent extirpation or extinction. Extinct ...
Quantifying Terrestrial Habitat Loss and Fragmentation: A Protocol
... Many scientists believe that the earth is facing a mass extinction (Lawton and May 1995, Vitousek et al. 1997, Wilson 1999, Myers and Knoll 2001, Balmford et al. 2003). Current global extinction rates for animals and plants are as much as 1,000 times higher than the background rate in the fossil rec ...
... Many scientists believe that the earth is facing a mass extinction (Lawton and May 1995, Vitousek et al. 1997, Wilson 1999, Myers and Knoll 2001, Balmford et al. 2003). Current global extinction rates for animals and plants are as much as 1,000 times higher than the background rate in the fossil rec ...
Grizzly Bear Conservation in the Yellowstone to Yukon
... the natural heritage of the Yellowstone to Yukon region. A significant component of this heritage is the intact populations of native plants and animals. As one means of protecting and preserving this biodiversity, Y2Y conducts scientific research to identify priority areas within the region for lar ...
... the natural heritage of the Yellowstone to Yukon region. A significant component of this heritage is the intact populations of native plants and animals. As one means of protecting and preserving this biodiversity, Y2Y conducts scientific research to identify priority areas within the region for lar ...
cougars - Raincoast Conservation Foundation
... If we are to maintain – and ultimately push back – the geographic line of cougar extirpation, difficult decisions on land use and wildlife management will be required. Lasting success will come from securing the spatial and cultural integration of conservation and development goals throughout BC. Th ...
... If we are to maintain – and ultimately push back – the geographic line of cougar extirpation, difficult decisions on land use and wildlife management will be required. Lasting success will come from securing the spatial and cultural integration of conservation and development goals throughout BC. Th ...
Spotted Owl – Caurina subspecies
... A species, subspecies, variety, or geographically or genetically distinct population of animal, plant or other organism, other than a bacterium or virus, that is wild by nature and is either native to Canada or has extended its range into Canada without human intervention and has been present in Can ...
... A species, subspecies, variety, or geographically or genetically distinct population of animal, plant or other organism, other than a bacterium or virus, that is wild by nature and is either native to Canada or has extended its range into Canada without human intervention and has been present in Can ...
programmatic biological assessment, conference report, and
... The purpose of this Biological Assessment (BA), Conference Report (CR), and Conservation Strategy is to determine whether the Colorado Department of Transportation’s (CDOT) routine maintenance and upgrade activities on existing transportation corridors of eastern Colorado over the next 20 years are ...
... The purpose of this Biological Assessment (BA), Conference Report (CR), and Conservation Strategy is to determine whether the Colorado Department of Transportation’s (CDOT) routine maintenance and upgrade activities on existing transportation corridors of eastern Colorado over the next 20 years are ...
Scaled Quail Management in Trans-Pecos Texas
... not been the recipient of widespread intensive management efforts. A changing trend is apparent in the region with more operators showing an interest in managing land with priority given to scaled quail production. Management techniques and strategies for the species are not as thoroughly tested as ...
... not been the recipient of widespread intensive management efforts. A changing trend is apparent in the region with more operators showing an interest in managing land with priority given to scaled quail production. Management techniques and strategies for the species are not as thoroughly tested as ...
Wildlife crossing
Wildlife crossings are structures that allow animals to cross human-made barriers safely. Wildlife crossings may include: underpass tunnels, viaducts, and overpasses (mainly for large or herd-type animals); amphibian tunnels; fish ladders; tunnels and culverts (for small mammals such as otters, hedgehogs, and badgers); green roofs (for butterflies and birds).Wildlife crossings are a practice in habitat conservation, allowing connections or reconnections between habitats, combating habitat fragmentation. They also assist in avoiding collisions between vehicles and animals, which in addition to killing or injuring wildlife may cause injury to humans and property damage.Similar structures can be used for domesticated animals, such as cattle creeps.