2008. Scientific Review for the Identification of Critical Habitat
... Woodland Caribou (Rangifer tarandus caribou), Boreal Population (herein referred to as boreal caribou), are formally listed as Threatened under the federal Species at Risk Act (SARA). The Act requires the Minister of Environment to prepare a Recovery Strategy for the species that includes, to the ex ...
... Woodland Caribou (Rangifer tarandus caribou), Boreal Population (herein referred to as boreal caribou), are formally listed as Threatened under the federal Species at Risk Act (SARA). The Act requires the Minister of Environment to prepare a Recovery Strategy for the species that includes, to the ex ...
Using landowner knowledge and field captures to determine habitat use... Plestiodon septentrionalis
... fragmentation of habitat, the expansion of intensive agriculture, and depletion of soil nutrients (Ojima et al. 1994). The changes caused by humanity are so striking that some suggest we should incorporate “humanized” landscapes into existing land use and protected area definitions (Locke and Dearde ...
... fragmentation of habitat, the expansion of intensive agriculture, and depletion of soil nutrients (Ojima et al. 1994). The changes caused by humanity are so striking that some suggest we should incorporate “humanized” landscapes into existing land use and protected area definitions (Locke and Dearde ...
The Kiwi - Nga Manu Nature Reserve
... of a huge continent called Gondwanaland along with South America, Africa, Australia, India, and Antarctica • Gondwanaland broke apart about 80 million years ago. As a result, species were no longer able to travel around the whole continent but were trapped on their newly formed continent. There are ...
... of a huge continent called Gondwanaland along with South America, Africa, Australia, India, and Antarctica • Gondwanaland broke apart about 80 million years ago. As a result, species were no longer able to travel around the whole continent but were trapped on their newly formed continent. There are ...
Dakota skipper - The Xerces Society
... biological vulnerability and threats to support a proposal to list as endangered or threatened but for which preparation and publication of a proposal is precluded by higher-priority listing actions” (67 Fed. Reg. 40658). See also, 50 CFR § 424.02(b). In 2002, the USFWS also assigned the Dakota skip ...
... biological vulnerability and threats to support a proposal to list as endangered or threatened but for which preparation and publication of a proposal is precluded by higher-priority listing actions” (67 Fed. Reg. 40658). See also, 50 CFR § 424.02(b). In 2002, the USFWS also assigned the Dakota skip ...
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 ...
6.4 Environmental Niche Analysis - Predicting potential occurrence
... occurrence points across the study area, given the constraints that the expected value of each environmental variable under this estimated distribution matches its empirical average (Phillips et al. 2004, 2006). The raw output is a probability value (0-1) assigned to each map cell of the study area, ...
... occurrence points across the study area, given the constraints that the expected value of each environmental variable under this estimated distribution matches its empirical average (Phillips et al. 2004, 2006). The raw output is a probability value (0-1) assigned to each map cell of the study area, ...
Schaus Swallowtail Butterfly
... in May and June, where adults are active; most sightings have been recorded between mid-April and mid-July (FWS 1982). Post flight season emergences in August or September are extremely rare, but do occur in both the wild and captively propagated populations (T. Emmel, University of Florida, persona ...
... in May and June, where adults are active; most sightings have been recorded between mid-April and mid-July (FWS 1982). Post flight season emergences in August or September are extremely rare, but do occur in both the wild and captively propagated populations (T. Emmel, University of Florida, persona ...
Western Ringtail Possum (Pseudocheirus occidentalis)
... urban development and loss of prime habitat. This coastal strip is considered to be a stronghold for WRP and is therefore a focus for recovery and conservation of the species (Jones et al., 2004a; Jones et al., 2007; Harewood, 2008). High WRP population densities have been recorded in some urban set ...
... urban development and loss of prime habitat. This coastal strip is considered to be a stronghold for WRP and is therefore a focus for recovery and conservation of the species (Jones et al., 2004a; Jones et al., 2007; Harewood, 2008). High WRP population densities have been recorded in some urban set ...
Cumbria Species and Habitats Statements
... to be scarce within the Lake District. The majority of breeding sites are below 200m but they can breed up to 300m. In the early 1980s the Cumbria population of was estimated to be 120 pairs (5000 nationally), a decline of 84% in the county since the 1930s). This has since recovered to 300-350 pairs ...
... to be scarce within the Lake District. The majority of breeding sites are below 200m but they can breed up to 300m. In the early 1980s the Cumbria population of was estimated to be 120 pairs (5000 nationally), a decline of 84% in the county since the 1930s). This has since recovered to 300-350 pairs ...
COSEWIC assessment and status report on the Marbled Murrelet
... oceans warm, increased competition with southern stocks of mackerel and large Humboldt squid could also be a threat as these piscivores could reduce prey stocks for murrelets. Other present or future threats include: oil spills and chemical contaminants at sea; entanglement in gill-nets; displacemen ...
... oceans warm, increased competition with southern stocks of mackerel and large Humboldt squid could also be a threat as these piscivores could reduce prey stocks for murrelets. Other present or future threats include: oil spills and chemical contaminants at sea; entanglement in gill-nets; displacemen ...
Amargosa Vole
... mediated by pheromones produced by the family group (Batzli et al. 1977). Batzli et al. (1977) found that California vole littermates suppress growth and sexual maturation when kept in the same cage while isolated individuals were not suppressed. With a long breeding season, postpartum estrus, large ...
... mediated by pheromones produced by the family group (Batzli et al. 1977). Batzli et al. (1977) found that California vole littermates suppress growth and sexual maturation when kept in the same cage while isolated individuals were not suppressed. With a long breeding season, postpartum estrus, large ...
Distribution and Habitat Associations of Spotted Ratfish (Hydrolagus
... utilized a towed camera sled to conduct surveys of juvenile flatfish habitats at Kodiak Island, Alaska. Models incorporating fine scale habitat variables (i.e. tube worm densities, structural complexity created by macroalgae and epifauna) observed in videos proved more accurate in predicting juvenil ...
... utilized a towed camera sled to conduct surveys of juvenile flatfish habitats at Kodiak Island, Alaska. Models incorporating fine scale habitat variables (i.e. tube worm densities, structural complexity created by macroalgae and epifauna) observed in videos proved more accurate in predicting juvenil ...
Quantifying Terrestrial Habitat Loss and Fragmentation: A Protocol
... subdivision, geometry, isolation, and connectivity, and their affects on individual behavior and habitat use, population structure and viability, and interspecific interactions. Finally, we view the evidence, both theoretical and empirical, regarding the issue of when is habitat fragmentation import ...
... subdivision, geometry, isolation, and connectivity, and their affects on individual behavior and habitat use, population structure and viability, and interspecific interactions. Finally, we view the evidence, both theoretical and empirical, regarding the issue of when is habitat fragmentation import ...
Reptile Habitat Management Handbook
... The copyright of the photographs generously donated for this publication remains with the photographers. Note that no criticism is intended of any site managers or organisations whose sites feature in photographs characterised here as poor habitat for reptiles. The images have been chosen simply to ...
... The copyright of the photographs generously donated for this publication remains with the photographers. Note that no criticism is intended of any site managers or organisations whose sites feature in photographs characterised here as poor habitat for reptiles. The images have been chosen simply to ...
distribution and ecology of the broad
... Kosciuszko National Park with between 69–81% of adults surviving the over-winter period. The 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 spec ...
... Kosciuszko National Park with between 69–81% of adults surviving the over-winter period. The 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 spec ...
Evolutionary Conservation Biology
... As anthropogenic environmental changes spread and intensify across the planet, conservation biologists have to analyze dynamics at large spatial and temporal scales. Ecological and evolutionary processes are then closely intertwined. In particular, evolutionary responses to anthropogenic environment ...
... As anthropogenic environmental changes spread and intensify across the planet, conservation biologists have to analyze dynamics at large spatial and temporal scales. Ecological and evolutionary processes are then closely intertwined. In particular, evolutionary responses to anthropogenic environment ...
Existing and proposed PAS recovery and threat abatement
... Heat stress through drought and heatwaves Support carer and vet networks in their response to the management of koala health and welfare during extreme weather conditions. Research and trial adaptation management actions such as installation of artificial water sources and the establishment of refug ...
... Heat stress through drought and heatwaves Support carer and vet networks in their response to the management of koala health and welfare during extreme weather conditions. Research and trial adaptation management actions such as installation of artificial water sources and the establishment of refug ...
Working Together to Recover Boreal Caribou
... • is stable or growing (more births than deaths); • is large enough to withstand random events (e.g., severe weather) and human-caused pressures; ...
... • is stable or growing (more births than deaths); • is large enough to withstand random events (e.g., severe weather) and human-caused pressures; ...
Effects of productivity, disturbance, and ecosystem size on food
... full module to start with). A key assumption of our model is thus that local extinction of the basal resource causes simultaneous local extinction of the IG-prey and/ or the IG-predator, because the IG-prey and the IGpredator cannot persist in patches without the basal resource. A patch in state B c ...
... full module to start with). A key assumption of our model is thus that local extinction of the basal resource causes simultaneous local extinction of the IG-prey and/ or the IG-predator, because the IG-prey and the IGpredator cannot persist in patches without the basal resource. A patch in state B c ...
Large bodied fish communities and drivers of use in the shallow
... were significantly different from each other with the intertidal community sharing some species-specific characteristics with both the littoral and subtidal. Teleosts were the dominant group in the littoral and intertidal habitats while sharks dominated the subtidal habitat. Very few habitat general ...
... were significantly different from each other with the intertidal community sharing some species-specific characteristics with both the littoral and subtidal. Teleosts were the dominant group in the littoral and intertidal habitats while sharks dominated the subtidal habitat. Very few habitat general ...
report to great lakes council public inquiry into the ecological
... The area of significance to Koalas is generally the same (but larger) than the area of significance to threatened species (Figures A and B). There is an additional area of importance to Koalas in the vicinity of lots 106 to 108 and the Commission notes that retention of such area would comply with ...
... The area of significance to Koalas is generally the same (but larger) than the area of significance to threatened species (Figures A and B). There is an additional area of importance to Koalas in the vicinity of lots 106 to 108 and the Commission notes that retention of such area would comply with ...
Habitat use and movement patterns of the Northern
... 2005 and 2006........................................................................................................... 18 Table 2. Patterns of movement were either directed towards a fixed bearing or not directed (random). A Rao’s spacing test was not applied to data from individuals that made few ...
... 2005 and 2006........................................................................................................... 18 Table 2. Patterns of movement were either directed towards a fixed bearing or not directed (random). A Rao’s spacing test was not applied to data from individuals that made few ...
Thresholds in Habitat Supply: A Review of the Literature
... change in the rate of response to ecosystem change; a critical value of an ecosystem property at which previously linear or unobserved change becomes a drastic transformation. Around thresholds, change occurs suddenly. Paradoxically, the changed state may be long-lived or irreversible. Threshold cha ...
... change in the rate of response to ecosystem change; a critical value of an ecosystem property at which previously linear or unobserved change becomes a drastic transformation. Around thresholds, change occurs suddenly. Paradoxically, the changed state may be long-lived or irreversible. Threshold cha ...
UNIVERSIDAD AUT ´ONOMA DE MADRID FACULTAD DE
... on insensibly changing physical conditions, but in large part on the presence of other species, on which it depends, or by which it is destroyed, or which it comes into competition. ...
... on insensibly changing physical conditions, but in large part on the presence of other species, on which it depends, or by which it is destroyed, or which it comes into competition. ...
The effects of landscape fragmentation on
... configuration on species distributions or demography is rare (Betts et al., 2006). This is in striking contrast to the nearly unequivocal support for the negative influences of landscape ...
... configuration on species distributions or demography is rare (Betts et al., 2006). This is in striking contrast to the nearly unequivocal support for the negative influences of landscape ...