Checkerspot Stewardship Guide HSP 2014 (3.4 Megabytes – pdf)
... • Introductions of new infectious diseases and parasites, usually unintentional, from contact with domestic plants and animals or species that have invaded wild areas likely have been and continue to be additional stress factors for previous ly unexposed species. • Habitat-enhancement activities may ...
... • Introductions of new infectious diseases and parasites, usually unintentional, from contact with domestic plants and animals or species that have invaded wild areas likely have been and continue to be additional stress factors for previous ly unexposed species. • Habitat-enhancement activities may ...
Spotted Owl – Caurina subspecies
... Endangered Reason for designation This owl requires old-growth forests for its survival and has suffered a catastrophic population decline over the past 50 years as habitat is lost and fragmented. With the severely depressed population, an additional threat is the recent arrival of the closely relat ...
... Endangered Reason for designation This owl requires old-growth forests for its survival and has suffered a catastrophic population decline over the past 50 years as habitat is lost and fragmented. With the severely depressed population, an additional threat is the recent arrival of the closely relat ...
Attwater`s Prairie-Chicken Recovery Plan
... the APC and its habitat, allowing the population to reach a measurable level of ecological and genetic stability so that it can be reclassified to threatened status (downlisted) and ultimately removed from the endangered species list (delisted). Recovery Strategy: APC recovery must be focused on thr ...
... the APC and its habitat, allowing the population to reach a measurable level of ecological and genetic stability so that it can be reclassified to threatened status (downlisted) and ultimately removed from the endangered species list (delisted). Recovery Strategy: APC recovery must be focused on thr ...
Riverine Fish Flow Investigations
... Harry Vermillion, Scientific Programmer/Analyst, F-239, Aquatic Data Analysis ...
... Harry Vermillion, Scientific Programmer/Analyst, F-239, Aquatic Data Analysis ...
Differences in soft-sediment macrobenthic - Research Online
... redox potential (and associated chemical changes) may explain patterns in abundance of infauna among habitats. Our findings indicate that invasion by C. taxifolia causes important changes to soft-sediment macroinvertebrate assemblages and suggest that infauna may be particularly vulnerable to invasi ...
... redox potential (and associated chemical changes) may explain patterns in abundance of infauna among habitats. Our findings indicate that invasion by C. taxifolia causes important changes to soft-sediment macroinvertebrate assemblages and suggest that infauna may be particularly vulnerable to invasi ...
Schaus Swallowtail Butterfly
... butterflies in the Lower Keys. One Schaus swallowtail butterfly was seen on Big Pine Key in 1966 (FWS 1982). Another Schaus swallowtail butterfly was sighted on Lignumvitae Key in 1973 (Covell 1976). The sighting on the latter Key seems possible because the butterflys foodplant torchwood (Amyris el ...
... butterflies in the Lower Keys. One Schaus swallowtail butterfly was seen on Big Pine Key in 1966 (FWS 1982). Another Schaus swallowtail butterfly was sighted on Lignumvitae Key in 1973 (Covell 1976). The sighting on the latter Key seems possible because the butterflys foodplant torchwood (Amyris el ...
habitat use and selection by moose and elk in the besa
... We determined sizes of annual and seasonal home ranges using 100% minimum convex polygons (MCPs, Jennrich and Turner 1969) around GPS locations for each individual, as well as by fixed kernel analysis (Worton 1989). These calculations were done using the ArcView Animal Movement Extension (Hooge and ...
... We determined sizes of annual and seasonal home ranges using 100% minimum convex polygons (MCPs, Jennrich and Turner 1969) around GPS locations for each individual, as well as by fixed kernel analysis (Worton 1989). These calculations were done using the ArcView Animal Movement Extension (Hooge and ...
Spatial ecology of the Ethiopian wolf, Canis simensis
... saturated environments, the production of ‘surplus’ adult wolves led to philopatry via delayed dispersal, and some long-distance female dispersal. At low densities resulting from an epizootic, these surplus animals participated in the recovery via pack augmentation and the formation of new breeding ...
... saturated environments, the production of ‘surplus’ adult wolves led to philopatry via delayed dispersal, and some long-distance female dispersal. At low densities resulting from an epizootic, these surplus animals participated in the recovery via pack augmentation and the formation of new breeding ...
distribution and ecology of the broad
... species falls within the Critical Weight Range (Burbidge and McKenzie 1989) and are therefore at high risk to decline and extinction through predation by introduced predators such as foxes and cats. The species has a patchy distribution across its range. While large habitat patches are likely to sup ...
... species falls within the Critical Weight Range (Burbidge and McKenzie 1989) and are therefore at high risk to decline and extinction through predation by introduced predators such as foxes and cats. The species has a patchy distribution across its range. While large habitat patches are likely to sup ...
Western ringtail possum recovery plan514.9 KB
... Recovery plans are developed within the framework laid down in Department of Parks and Wildlife Policy Statements Nos. 44 and 50 (CALM 1992, 1994), and the Australian Government Department of the Environment’s Recovery Planning Compliance Checklist for Legislative and Process Requirements (DEWHA 200 ...
... Recovery plans are developed within the framework laid down in Department of Parks and Wildlife Policy Statements Nos. 44 and 50 (CALM 1992, 1994), and the Australian Government Department of the Environment’s Recovery Planning Compliance Checklist for Legislative and Process Requirements (DEWHA 200 ...
Conservation Strategy Updated 3-16-17
... native to the northeastern United States from the Hudson River Valley of New York eastward. The NEC is currently threatened by the loss of its habitat through development and forest succession. It may also be imperiled by encroachment into its range by the introduced eastern cottontail (Sylvilagus f ...
... native to the northeastern United States from the Hudson River Valley of New York eastward. The NEC is currently threatened by the loss of its habitat through development and forest succession. It may also be imperiled by encroachment into its range by the introduced eastern cottontail (Sylvilagus f ...
grouse news - Galliformes Specialist Group
... “This is welcome news for all Nevadans. I applaud the local area working group, private citizens, Tribes, the Nevada Department of Wildlife and our federal partners for their tremendous efforts to develop conservation actions that preclude the need to list the species while still allowing for sustai ...
... “This is welcome news for all Nevadans. I applaud the local area working group, private citizens, Tribes, the Nevada Department of Wildlife and our federal partners for their tremendous efforts to develop conservation actions that preclude the need to list the species while still allowing for sustai ...
A Framework For Monitoring The Effectiveness Of Habitat
... Columbia. In recent years, provincial mountain caribou populations have declined dramatically, partly due to a number of factors resulting from human-related activities within their range, including habitat loss from forest harvesting, displacement by motorized recreation, increasing predation due t ...
... Columbia. In recent years, provincial mountain caribou populations have declined dramatically, partly due to a number of factors resulting from human-related activities within their range, including habitat loss from forest harvesting, displacement by motorized recreation, increasing predation due t ...
Recovery Plan for the Southern Brown Bandicoot in the Mount Lofty
... I. o. obesulus, occurs in the Mount Lofty Ranges. Suitable habitat within this area has become fragmented and the species range has contracted from its northern extent. Isoodon. obesulus obesulus is currently listed as Endangered under the Commonwealth’s Environment Protection and Biodiversity Conse ...
... I. o. obesulus, occurs in the Mount Lofty Ranges. Suitable habitat within this area has become fragmented and the species range has contracted from its northern extent. Isoodon. obesulus obesulus is currently listed as Endangered under the Commonwealth’s Environment Protection and Biodiversity Conse ...
Babcock RCW Plan - Florida Department of Environmental Protection
... acquisition needs. The objectives of this goal include the maintenance and restoration of habitat connectivity. Babcock Ranch Inc. is a not-for-profit, state-appointed corporation established by the BRP Act to advise Babcock Ranch Management during the term of the Management Agreement (see below). B ...
... acquisition needs. The objectives of this goal include the maintenance and restoration of habitat connectivity. Babcock Ranch Inc. is a not-for-profit, state-appointed corporation established by the BRP Act to advise Babcock Ranch Management during the term of the Management Agreement (see below). B ...
Southern Pacific Coast Regional Shorebird Plan
... agricultural and urban development over the past two centuries. Ongoing urban development is highly likely to remain an agent of habitat loss, especially in agricultural lands of the Central Valley. In this region, changes in cropping patterns – such as from rice to cotton or from cattle grazing to ...
... agricultural and urban development over the past two centuries. Ongoing urban development is highly likely to remain an agent of habitat loss, especially in agricultural lands of the Central Valley. In this region, changes in cropping patterns – such as from rice to cotton or from cattle grazing to ...
The value of field margins for farmland birds
... have survived until today have to a greater or lesser degree been able to handle anthropogenic influences. One could argue that presently there is no place left in this world that is not to some extent influenced by humans, but in some habitats this influence is most pronounced. One of these habitat ...
... have survived until today have to a greater or lesser degree been able to handle anthropogenic influences. One could argue that presently there is no place left in this world that is not to some extent influenced by humans, but in some habitats this influence is most pronounced. One of these habitat ...
Linkages in the Landscape
... the environmental crisis had to find a way to ensure the protection of “ecosystems of priority importance”. The first protected area designations were made to ensure that, whatever human development might occur, some places would remain untouched. In other words, protected areas have been designed, ...
... the environmental crisis had to find a way to ensure the protection of “ecosystems of priority importance”. The first protected area designations were made to ensure that, whatever human development might occur, some places would remain untouched. In other words, protected areas have been designed, ...
The invasive Pacific oyster, Crassostrea gigas, in
... AIB and A2) and a short term climate scenario is adapted from a Nordic analysis on climate change. Four different habitat types are included in the assessment. The habitat types represent important habitats for C. gigas in Scandinavia. The risk assessment is based on an analysis of the present scien ...
... AIB and A2) and a short term climate scenario is adapted from a Nordic analysis on climate change. Four different habitat types are included in the assessment. The habitat types represent important habitats for C. gigas in Scandinavia. The risk assessment is based on an analysis of the present scien ...
Key - Scioly.org
... iv. primary consumer (1pt) v. secondary consumer (1pt) b) Calculation (1pt correct answer) using the 10% rule, 234 kJ available to pika à 23.4 kJ available to the pine marten à 2.34 kJ (2340 J) available for the bobcat 1pt for calculations or explanation c) Calculation(2pts) of energy available to t ...
... iv. primary consumer (1pt) v. secondary consumer (1pt) b) Calculation (1pt correct answer) using the 10% rule, 234 kJ available to pika à 23.4 kJ available to the pine marten à 2.34 kJ (2340 J) available for the bobcat 1pt for calculations or explanation c) Calculation(2pts) of energy available to t ...
fisken og
... areas there is a limited to moderate risk that a bio-invasion of C. gigas will develop. For Biogenic reefs and Sub-littoral sediment in high energy areas there is a moderate to high risk for a bio-invasion. A risk assessment was performed for each of the four habitat types: It is concluded that for ...
... areas there is a limited to moderate risk that a bio-invasion of C. gigas will develop. For Biogenic reefs and Sub-littoral sediment in high energy areas there is a moderate to high risk for a bio-invasion. A risk assessment was performed for each of the four habitat types: It is concluded that for ...
Reversing the habitat fragmentation of British
... Britain’s native woodland is rightly described as a fragmented habitat. Originally, natural forests covered perhaps 85-90 per cent of the land, but by the 11th century, clearance had reduced them to 15 per cent in England. Today, the remnants – the ancient woods – cover no more than 1.4 per cent of ...
... Britain’s native woodland is rightly described as a fragmented habitat. Originally, natural forests covered perhaps 85-90 per cent of the land, but by the 11th century, clearance had reduced them to 15 per cent in England. Today, the remnants – the ancient woods – cover no more than 1.4 per cent of ...
National Recovery Plan for the Spotted
... Belcher & Darrant 2006b). While habitat-use at other sites will most likely be driven by the same factors identified by these studies, given the broad range of habitat types occupied by Spotted-tailed Quolls throughout their geographic distribution, habitat-use in other areas may correspond to diffe ...
... Belcher & Darrant 2006b). While habitat-use at other sites will most likely be driven by the same factors identified by these studies, given the broad range of habitat types occupied by Spotted-tailed Quolls throughout their geographic distribution, habitat-use in other areas may correspond to diffe ...
Brown-headed Cowbirds - American Birding Association
... In the dim light shortly before sunrise a dull brownish bird sneaks purposefully through some low branches and alights on a nest so small that it can barely contain her. In less than a minute she flies off, but not before laying an egg that dwarfs the much smaller eggs of the birds that built the ne ...
... In the dim light shortly before sunrise a dull brownish bird sneaks purposefully through some low branches and alights on a nest so small that it can barely contain her. In less than a minute she flies off, but not before laying an egg that dwarfs the much smaller eggs of the birds that built the ne ...
3337 CBD Synthesis.indd - Millennium Ecosystem Assessment
... and to establish the scientific basis for actions needed to enhance the conservation and sustainable use of ecosystems and their contributions to human well-being. Biological diversity plays a critical role in underpinning ecosystem services. Governments supported the establishment of the MA through ...
... and to establish the scientific basis for actions needed to enhance the conservation and sustainable use of ecosystems and their contributions to human well-being. Biological diversity plays a critical role in underpinning ecosystem services. Governments supported the establishment of the MA through ...
Habitat destruction
Habitat destruction is the process in which natural habitat is rendered functionally unable to support the species present. In this process, the organisms that previously used the site are displaced or destroyed, reducing biodiversity. Habitat destruction by human activity is mainly for the purpose of harvesting natural resources for industry production and urbanization. Clearing habitats for agriculture is the principal cause of habitat destruction. Other important causes of habitat destruction include mining, logging, trawling and urban sprawl. Habitat destruction is currently ranked as the primary cause of species extinction worldwide. It is a process of natural environmental change that may be caused by habitat fragmentation, geological processes, climate change or by human activities such as the introduction of invasive species, ecosystem nutrient depletion, and other human activities mentioned below.The terms habitat loss and habitat reduction are also used in a wider sense, including loss of habitat from other factors, such as water and noise pollution.