Provisional Site Selection Document
... were drawn up based on the IUCN and National Species Reintroduction Forum guidelines together with feedback from the consultation exercise. The eight criteria used to guide site selection are as follows: A. What is the habitat composition within the sites and how suitable is it for lynx? B. Is there ...
... were drawn up based on the IUCN and National Species Reintroduction Forum guidelines together with feedback from the consultation exercise. The eight criteria used to guide site selection are as follows: A. What is the habitat composition within the sites and how suitable is it for lynx? B. Is there ...
PhD-thesis - bibsys brage
... (Kerr and Currie, 1995; Pimm et al., 2006). In heterogeneous environments, changes in habitat quality for a given species could lead to local demographic differences (MacArthur, 1972; Gaillard et al., 2010). High quality sites could then become sources (births exceeding mortality rates), while low-q ...
... (Kerr and Currie, 1995; Pimm et al., 2006). In heterogeneous environments, changes in habitat quality for a given species could lead to local demographic differences (MacArthur, 1972; Gaillard et al., 2010). High quality sites could then become sources (births exceeding mortality rates), while low-q ...
21 Gopher Tortoise Habitat - Wildlife Ecology and Conservation
... Hundreds were collected at a time and then released into new areas, potentially transmitting parasites and diseases between tortoise populations (Diemer-Berish, 1986). -Because of the length of time it takes for tortoises to become reproductive and their low egg and hatchling survival rate, predatio ...
... Hundreds were collected at a time and then released into new areas, potentially transmitting parasites and diseases between tortoise populations (Diemer-Berish, 1986). -Because of the length of time it takes for tortoises to become reproductive and their low egg and hatchling survival rate, predatio ...
Draft Recovery Plan for the Green and Golden Bell Frog
... This document constitutes the draft Commonwealth and New South Wales State Recovery Plan for the Green and Golden Bell Frog Litoria aurea (Lesson 1829), and as such considers the conservation requirements of the species across its known range. It identifies the future actions to be taken to ensure t ...
... This document constitutes the draft Commonwealth and New South Wales State Recovery Plan for the Green and Golden Bell Frog Litoria aurea (Lesson 1829), and as such considers the conservation requirements of the species across its known range. It identifies the future actions to be taken to ensure t ...
recovery potential assessment for atlantic whitefish
... The historical range of Atlantic whitefish is known to have included the Tusket and Petite Rivière watersheds (Figure 1) and their adjacent estuaries and bays, but is expected to have extended to other watersheds in Nova Scotia (based on demographics, the characteristics of watersheds and the distri ...
... The historical range of Atlantic whitefish is known to have included the Tusket and Petite Rivière watersheds (Figure 1) and their adjacent estuaries and bays, but is expected to have extended to other watersheds in Nova Scotia (based on demographics, the characteristics of watersheds and the distri ...
Effects of seagrass landscape structure, structural complexity and
... Our objective in this study was to compare the influence of landscape-scale habitat structure on seagrass faunal densities to the influence of local-scale structure and hydrodynamic activity by statistically eliminating confounding between variables within each of these categories. In 1991 and 1992 ...
... Our objective in this study was to compare the influence of landscape-scale habitat structure on seagrass faunal densities to the influence of local-scale structure and hydrodynamic activity by statistically eliminating confounding between variables within each of these categories. In 1991 and 1992 ...
Moose Population Density and Habitat Productivity as Drivers of
... population, and thus is a limiting factor by definition (Sinclair 1991; Boutin 1992). However, it is considerably more difficult to determine if it also regulates growth of the prey population (Sinclair 1991; Ballenberghe & Ballard 1994), but some studies have found the ungulate populations to be re ...
... population, and thus is a limiting factor by definition (Sinclair 1991; Boutin 1992). However, it is considerably more difficult to determine if it also regulates growth of the prey population (Sinclair 1991; Ballenberghe & Ballard 1994), but some studies have found the ungulate populations to be re ...
View - EAHCP
... parts of New Mexico, Texas, and Mexico; whereas, the Lesser Longnosed Bat generally inhabits lower elevations in New Mexico, Arizona, Mexico, and parts of Central and South America. In some areas, the two species are found together. Mexican Long-nosed Bats, with their long muzzles and tongues, are w ...
... parts of New Mexico, Texas, and Mexico; whereas, the Lesser Longnosed Bat generally inhabits lower elevations in New Mexico, Arizona, Mexico, and parts of Central and South America. In some areas, the two species are found together. Mexican Long-nosed Bats, with their long muzzles and tongues, are w ...
Vancouver Island Marmot Population and Habitat Viability
... This workshop successfully integrated a wide diversity of stakeholders to evaluate and recommend both ex situ and in situ conservation management techniques as part of an integrated conservation plan to support the recovery of the Vancouver Island marmot. This PHVA report and the recommendations wit ...
... This workshop successfully integrated a wide diversity of stakeholders to evaluate and recommend both ex situ and in situ conservation management techniques as part of an integrated conservation plan to support the recovery of the Vancouver Island marmot. This PHVA report and the recommendations wit ...
invasion of smooth brome into north american tall
... Table 3.1 Mixed model results for percent germination of seeds. Type III test for fixed effects indicate if significance was met for fixed factors (e.g. habitat, single/mixed species subplots, species and all interactions) and prediction of random effects indicate significance and slope for abiotic ...
... Table 3.1 Mixed model results for percent germination of seeds. Type III test for fixed effects indicate if significance was met for fixed factors (e.g. habitat, single/mixed species subplots, species and all interactions) and prediction of random effects indicate significance and slope for abiotic ...
Managing wet grassland landscapes: impacts on predators and
... often been overlooked in favour of diversity and richness measures in studies quantifying the influence of environmental change (Tylianakis, Tscharntke, & Lewis 2007). Global climate changes are resulting in changing rates of warming and cooling, increased intensity of rainfall and changing storm fr ...
... often been overlooked in favour of diversity and richness measures in studies quantifying the influence of environmental change (Tylianakis, Tscharntke, & Lewis 2007). Global climate changes are resulting in changing rates of warming and cooling, increased intensity of rainfall and changing storm fr ...
When Does Alternative Food Promote Biological Pest
... aggregate at the PPF site and the stronger the suppression of herbivores at this site, whereas the suppression in the PPF-free site is weak. Decreasing the area of the PPF site relative to the total area intensifies the impact on herbivore density in this area, but leaves the herbivore density in th ...
... aggregate at the PPF site and the stronger the suppression of herbivores at this site, whereas the suppression in the PPF-free site is weak. Decreasing the area of the PPF site relative to the total area intensifies the impact on herbivore density in this area, but leaves the herbivore density in th ...
National Recovery Plan for the Spotted
... prey (Belcher 2000; Belcher & Darrant 2006b; Glen & Dickman 2006a, b). However, the threshold densities of these critical components required to support quoll populations are unknown. Consequently it is currently not possible to define (or map) habitat critical to the survival of the Spotted-tailed ...
... prey (Belcher 2000; Belcher & Darrant 2006b; Glen & Dickman 2006a, b). However, the threshold densities of these critical components required to support quoll populations are unknown. Consequently it is currently not possible to define (or map) habitat critical to the survival of the Spotted-tailed ...
What limits the Serengeti zebra population?
... (Spinage 1972), while the Serengeti population may have declined slightly between 1961 (n=179,000, Sinclair and Norton-Griffiths 1979) and 1996 (n=150,834, Moehlman 2002). For Serengeti plains zebra, no individually based estimates of foal and yearling survival are available. As these vary widely bo ...
... (Spinage 1972), while the Serengeti population may have declined slightly between 1961 (n=179,000, Sinclair and Norton-Griffiths 1979) and 1996 (n=150,834, Moehlman 2002). For Serengeti plains zebra, no individually based estimates of foal and yearling survival are available. As these vary widely bo ...
Squirrel Glider Conservation Management Plan
... forests and woodlands below 250 m altitude inland from the Great Divide. In NSW it occurs on western slopes of the Great Dividing Range and on the foot slopes and coastal plains of the east coast north of Sydney. Prior to the early 1980’s the Squirrel Glider was not known from the north coast of NSW ...
... forests and woodlands below 250 m altitude inland from the Great Divide. In NSW it occurs on western slopes of the Great Dividing Range and on the foot slopes and coastal plains of the east coast north of Sydney. Prior to the early 1980’s the Squirrel Glider was not known from the north coast of NSW ...
Habitat Monitoring Strategy for the Tidal Skagit Delta Integrating
... Consequently, the recovery plan evaluates the potential for restoring 2700 acres of tidal marsh in the delta to recover Skagit Chinook populations, although the actual acreage necessary for Chinook recovery will depend on the quality of individual restoration project results, the landscape context a ...
... Consequently, the recovery plan evaluates the potential for restoring 2700 acres of tidal marsh in the delta to recover Skagit Chinook populations, although the actual acreage necessary for Chinook recovery will depend on the quality of individual restoration project results, the landscape context a ...
Ecological opportunity and the origin of adaptive radiations
... experienced environment have the common effect of relaxing a source of natural selection acting on ecological traits. This suggests a stricter definition of ecological opportunity as the relaxation of selection acting on some ecologically important trait. Ecological release, then, is the response of ...
... experienced environment have the common effect of relaxing a source of natural selection acting on ecological traits. This suggests a stricter definition of ecological opportunity as the relaxation of selection acting on some ecologically important trait. Ecological release, then, is the response of ...
Checkerspot Stewardship Guide HSP 2014 (3.4 Megabytes – pdf)
... • contribute excretion nutrients to the habitat, • have a role in complex cycles as hosts to various parasites and microorganisms. Of note, their role in distributing pollen and pollination can be readily appreciated by humans and also, the adult butterflies add an aesthetic element to open- lands, ...
... • contribute excretion nutrients to the habitat, • have a role in complex cycles as hosts to various parasites and microorganisms. Of note, their role in distributing pollen and pollination can be readily appreciated by humans and also, the adult butterflies add an aesthetic element to open- lands, ...
Attwater`s Prairie-Chicken Recovery Plan
... 1. Downlist to threatened status when the overall population maintains a minimum of 3,000 breeding adults annually over a 5-year period and there is sufficient habitat of coastal prairie grasslands (approximately 150,000 ac (60,702 ha)) to support this population. These 3,000 breeding adults should ...
... 1. Downlist to threatened status when the overall population maintains a minimum of 3,000 breeding adults annually over a 5-year period and there is sufficient habitat of coastal prairie grasslands (approximately 150,000 ac (60,702 ha)) to support this population. These 3,000 breeding adults should ...
6.4 Environmental Niche Analysis - Predicting potential occurrence
... The geographic distribution of a species is a function of its ecology and evolutionary history, determined by diverse factors operating at different spatial scales, including climate (Case and Taper 2000, Soberon 2007). We assume that a species will be present at a given point where three conditions ...
... The geographic distribution of a species is a function of its ecology and evolutionary history, determined by diverse factors operating at different spatial scales, including climate (Case and Taper 2000, Soberon 2007). We assume that a species will be present at a given point where three conditions ...
HABITAT COMPLEXITY INFLUENCES CASCADING EFFECTS OF MULTIPLE PREDATORS J H. G
... and VanKooten 2001) as well as lower trophic levels (Duffy 2002, Byrnes et al. 2006). Because most natural communities contain numerous predator species, predicting the distribution and density of prey species likely requires an understanding of interactions among predators as well as their consumpt ...
... and VanKooten 2001) as well as lower trophic levels (Duffy 2002, Byrnes et al. 2006). Because most natural communities contain numerous predator species, predicting the distribution and density of prey species likely requires an understanding of interactions among predators as well as their consumpt ...
distribution and ecology of the broad
... Establish a baseline and method for long term monitoring to assess the effects of climate change on the abundance and distribution of the species. ...
... Establish a baseline and method for long term monitoring to assess the effects of climate change on the abundance and distribution of the species. ...
POPULATION CRITICAL: How are Caribou Faring?
... the area as undisturbed habitat; and (2) biophysical attributes required by boreal caribou to carry out life processes.”5 The 65% threshold is associated with a 60% probability that a given caribou population is self-sustaining. The federal Recovery Strategy also mandates that provinces and territor ...
... the area as undisturbed habitat; and (2) biophysical attributes required by boreal caribou to carry out life processes.”5 The 65% threshold is associated with a 60% probability that a given caribou population is self-sustaining. The federal Recovery Strategy also mandates that provinces and territor ...
Issues of Elk Productivity for Research and
... the past century. The species’ popular appeal as an animal for hunting and viewing, and its potential to damage agricultural crops and compete with livestock make it a species that is closely scrutinized by managers and many public interests. Today, elk continue to have significant ecological, cultu ...
... the past century. The species’ popular appeal as an animal for hunting and viewing, and its potential to damage agricultural crops and compete with livestock make it a species that is closely scrutinized by managers and many public interests. Today, elk continue to have significant ecological, cultu ...