Swift Parrot Habitat and the Forestry Tasmania Three Year Wood
... Government to improve public and consumer confidence in the Tasmanian forestry industry. It is increasingly clear that a central part of this rebranding - the marketing of Tasmanian timber products as a world-leading premium product - is tied to the fate of the Swift parrot and other native animals. ...
... Government to improve public and consumer confidence in the Tasmanian forestry industry. It is increasingly clear that a central part of this rebranding - the marketing of Tasmanian timber products as a world-leading premium product - is tied to the fate of the Swift parrot and other native animals. ...
A hierarchical view of habitat and its relationship to species
... average, have higher peaks and higher mean densities. The assumption of curve similarity lacks an ecological justification. In contrast, curves may display a variety of shapes, with distinct plateau regions where densities would neither increase nor decrease significantly (see figure 4.2b). Furtherm ...
... average, have higher peaks and higher mean densities. The assumption of curve similarity lacks an ecological justification. In contrast, curves may display a variety of shapes, with distinct plateau regions where densities would neither increase nor decrease significantly (see figure 4.2b). Furtherm ...
Declaration of critical habitat for the endangered population of little
... Figure 1 shows the critical habitat for the endangered population of Little Penguins at Manly. The area has been identified based upon the biological requirements of the population and the potential impacts of known and/or suspected threats. This area has taken into account many comments raised thro ...
... Figure 1 shows the critical habitat for the endangered population of Little Penguins at Manly. The area has been identified based upon the biological requirements of the population and the potential impacts of known and/or suspected threats. This area has taken into account many comments raised thro ...
Non-optimal animal movement in human
... patch disappears) is higher than for species in patchy non-ephemeral habitats. As discussed above, such species often show a bimodal movement probability; the small proportion of animals that are committed to movement may then move irrespective of boundaries encountered. Animals that evolved in patc ...
... patch disappears) is higher than for species in patchy non-ephemeral habitats. As discussed above, such species often show a bimodal movement probability; the small proportion of animals that are committed to movement may then move irrespective of boundaries encountered. Animals that evolved in patc ...
A Survey and Overview of Habitat Fragmentation Experiments
... Following from the theory of island biogeography (MacArthur & Wilson 1967), species richness in habitat fragments is expected to be a function of island size and degree of isolation. Smaller, more isolated fragments are expected to retain fewer species than larger, less isolated habitat tracts (Diam ...
... Following from the theory of island biogeography (MacArthur & Wilson 1967), species richness in habitat fragments is expected to be a function of island size and degree of isolation. Smaller, more isolated fragments are expected to retain fewer species than larger, less isolated habitat tracts (Diam ...
Toward an ecological synthesis: a case for habitat selection
... Morris 1988; Pulliam 1988). Consider the effects of idealfree distributions in landscapes with variable mosaics of two habitats that differ in their respective intrinsic growth rates at low density (e.g., as in Fig. 3B). A general principle of population dynamics is that populations possessing a hig ...
... Morris 1988; Pulliam 1988). Consider the effects of idealfree distributions in landscapes with variable mosaics of two habitats that differ in their respective intrinsic growth rates at low density (e.g., as in Fig. 3B). A general principle of population dynamics is that populations possessing a hig ...
Lizard community structure across a grassland
... few to no other shrubs and an abundance of bare soil. Larger creosote bush shrubs often had small patches of grass at their bases as well as packrat (Neotoma spp.) nests. Grassland sites were dominated by large grass clumps interspersed with smaller areas of bare soil, scattered small shrubs, and yu ...
... few to no other shrubs and an abundance of bare soil. Larger creosote bush shrubs often had small patches of grass at their bases as well as packrat (Neotoma spp.) nests. Grassland sites were dominated by large grass clumps interspersed with smaller areas of bare soil, scattered small shrubs, and yu ...
Interactions of components of habitats alter composition and
... structural components did not always increase the diversity of organisms colonizing intertidal boulders. McCoy & Bell (1991) provided a model of the two major components of habitat structure, in an attempt to clarify differences between the effects of different structural characteristics of habitat ...
... structural components did not always increase the diversity of organisms colonizing intertidal boulders. McCoy & Bell (1991) provided a model of the two major components of habitat structure, in an attempt to clarify differences between the effects of different structural characteristics of habitat ...
Pleistocene Rewilding - UNM Biology
... how humans might perceive and manage nature. The islands of Oceania provide a stark example (Steadman, forthcoming). Before the onset of human impacts 3,000 years ago, these islands were home to more than 2,000 ...
... how humans might perceive and manage nature. The islands of Oceania provide a stark example (Steadman, forthcoming). Before the onset of human impacts 3,000 years ago, these islands were home to more than 2,000 ...
E4ects of Habitat Destruction and Resource
... M'Closkey, 1997; Kolozsvary & Swihart, 2000). Not surprisingly, habitat destruction has been implicated as the major threat to biological diversity (Wilcox & Murphy, 1985). The metapopulation concept provides a useful framework within which to study the implications of habitat loss and fragmentation ...
... M'Closkey, 1997; Kolozsvary & Swihart, 2000). Not surprisingly, habitat destruction has been implicated as the major threat to biological diversity (Wilcox & Murphy, 1985). The metapopulation concept provides a useful framework within which to study the implications of habitat loss and fragmentation ...
INTERMEDIATE DISTURBANCE AND ITS RELATIONSHIP TO
... whether or not there are mechanisms in lakes that can create patches at appropriate spatial and temporal scales. In addition, Wilson (1994) poses the more general question of whether or not the intermediate disturbance hypothesis applies to within- or between-patch scales. The first two issues refle ...
... whether or not there are mechanisms in lakes that can create patches at appropriate spatial and temporal scales. In addition, Wilson (1994) poses the more general question of whether or not the intermediate disturbance hypothesis applies to within- or between-patch scales. The first two issues refle ...
species accounts - Ministry of Environment
... Mountain caribou of the Selkirk Mountains occupy annual home ranges of up to 170 km 2 (Paquet 1997). Hamilton (2000) found that the female caribou in this area occupied 173 km 2 while males occupy home ranges of 254 km2. Breeding occurs in late autumn with males defending a small harem of 6-10 femal ...
... Mountain caribou of the Selkirk Mountains occupy annual home ranges of up to 170 km 2 (Paquet 1997). Hamilton (2000) found that the female caribou in this area occupied 173 km 2 while males occupy home ranges of 254 km2. Breeding occurs in late autumn with males defending a small harem of 6-10 femal ...
Red-legged Pademelon - Byron Shire Council
... ranges. The lowland rainforests of the Big Scrub would once have been prime habitat for this species. The fragmented Big Scrub remnants of the Byron Shire do not appear to support this species, however southern Big Scrub reserves at Victoria Park and Davis Scrub Nature Reserve on the Alstonville Pla ...
... ranges. The lowland rainforests of the Big Scrub would once have been prime habitat for this species. The fragmented Big Scrub remnants of the Byron Shire do not appear to support this species, however southern Big Scrub reserves at Victoria Park and Davis Scrub Nature Reserve on the Alstonville Pla ...
The interplay between habitat structure and chemical
... the structure of habitats can affect the response of organisms to disturbances (e.g., Gosper et al., 2015; Lindsay & Cunningham, 2009), changing the capability of assemblages to resist different types of impacts by either affecting their ‘susceptibility’, e.g., influencing the success of their pred ...
... the structure of habitats can affect the response of organisms to disturbances (e.g., Gosper et al., 2015; Lindsay & Cunningham, 2009), changing the capability of assemblages to resist different types of impacts by either affecting their ‘susceptibility’, e.g., influencing the success of their pred ...
pdf reprint
... was despite logic that showed why these theories may not be applicable, as the same theory could be used to predict that many small fragments of contrasting habitats may conserve more species than do large fragments (Simberloff and Abele 1976). Still, it came as a surprise that results were inconsis ...
... was despite logic that showed why these theories may not be applicable, as the same theory could be used to predict that many small fragments of contrasting habitats may conserve more species than do large fragments (Simberloff and Abele 1976). Still, it came as a surprise that results were inconsis ...
J F MAMMALS OF THE FREEMAN RANCH, HAYS COUNTY, TEXAS
... Changes induced by ungulate grazing on the local environment have been documented across a wide range of North American grassland types (Grant et al., 1982). Grazing alters the structure of native biotic communities, affecting changes in plant species composition and diversity, primary productivity, ...
... Changes induced by ungulate grazing on the local environment have been documented across a wide range of North American grassland types (Grant et al., 1982). Grazing alters the structure of native biotic communities, affecting changes in plant species composition and diversity, primary productivity, ...
New England Cottontail - Environmental Defense Fund
... sized predators forage along habitat edges, so smaller patches with proportionally more edge and less interior habitat are more dangerous locations for New England cottontails. New residential development often brings along domestic cats and dogs, which are known to kill New England cottontails and ...
... sized predators forage along habitat edges, so smaller patches with proportionally more edge and less interior habitat are more dangerous locations for New England cottontails. New residential development often brings along domestic cats and dogs, which are known to kill New England cottontails and ...
Rethinking patch size and isolation effects: the habitat amount
... (like the curve for islands) or shallower (like the curve for sample areas within continuous habitat)? If the latter, we can hypothesize that the species–area curve for habitat patches primarily results from the sample area effect, where larger patches represent larger sample areas. This is an impor ...
... (like the curve for islands) or shallower (like the curve for sample areas within continuous habitat)? If the latter, we can hypothesize that the species–area curve for habitat patches primarily results from the sample area effect, where larger patches represent larger sample areas. This is an impor ...
Full-Text PDF
... Dispersal among Speyeria populations ranges from relatively low in Speyeria nokomis [35] and S. diana [36] to relatively high in S. coronis [37] and S. idalia [34,38]. S. diana, S. idalia, and S. nokomis represent taxa with fragmented populations that are often separated by large distances [15,35,39 ...
... Dispersal among Speyeria populations ranges from relatively low in Speyeria nokomis [35] and S. diana [36] to relatively high in S. coronis [37] and S. idalia [34,38]. S. diana, S. idalia, and S. nokomis represent taxa with fragmented populations that are often separated by large distances [15,35,39 ...
APPENDIX B-2A Duchess Paradise Project
... Marine/estuarine species that spends its first three–four years in freshwater growing to about half its adult size (4 m+). In northern Australia, this species appears to be confined to freshwater drainages and the upper reaches of estuaries, occasionally being found as far as 400 km from the sea ...
... Marine/estuarine species that spends its first three–four years in freshwater growing to about half its adult size (4 m+). In northern Australia, this species appears to be confined to freshwater drainages and the upper reaches of estuaries, occasionally being found as far as 400 km from the sea ...
Species-Specific Responses of Carnivores to Human
... whereas that of shrubland decreased from 64.2% to 31.8% [20]. Found today only in small patches, the original habitats of this ecoregion were once home to a great diversity of plants, birds, and mammals, including seven species of mammalian carnivores. Despite the lack of research studies, there is ...
... whereas that of shrubland decreased from 64.2% to 31.8% [20]. Found today only in small patches, the original habitats of this ecoregion were once home to a great diversity of plants, birds, and mammals, including seven species of mammalian carnivores. Despite the lack of research studies, there is ...
Megafauna and ecosystem function from the
... have declined by 66–99% (3, 45). To date there have been few global extinctions of marine megafauna, with the exception of some coastal aquatic species such as Steller’s sea cow (46). In all continental areas, extinctions, reductions in abundance, and local extirpations of wild megafauna have contin ...
... have declined by 66–99% (3, 45). To date there have been few global extinctions of marine megafauna, with the exception of some coastal aquatic species such as Steller’s sea cow (46). In all continental areas, extinctions, reductions in abundance, and local extirpations of wild megafauna have contin ...
Extinction and the zoogeography of West Indian land mammals
... the Neotropics. The primary zoogeographic subdivision within the West Indian mammal fauna is between the bats and the non-volant mammals. These two fundamental groupings of Antillean mammals will be compared and contrasted throughout the paper. The term ‘land mammals’ refers to the entire mammalian ...
... the Neotropics. The primary zoogeographic subdivision within the West Indian mammal fauna is between the bats and the non-volant mammals. These two fundamental groupings of Antillean mammals will be compared and contrasted throughout the paper. The term ‘land mammals’ refers to the entire mammalian ...
Matters of National Environmental Significance
... result of natural or deliberate events (Section 4.2.11). Controlled burning conducted as part of pastoral activities will not be conducted on the same frequency or extent within the Mine Site Development Envelope as a result of implementation of the project. Due to the increased presence of people a ...
... result of natural or deliberate events (Section 4.2.11). Controlled burning conducted as part of pastoral activities will not be conducted on the same frequency or extent within the Mine Site Development Envelope as a result of implementation of the project. Due to the increased presence of people a ...
LESSER PRAIRIE CHICKEN Crude Oil and Natural Gas
... 15-16 inches. LPCs require large tracts of relatively intact native grasslands and prairies to survive. LPCs, particularly nesting hens, avoid vertical structures because they are often used as perches by predators such as hawks, eagles and owls. LPCs also exhibit a lek mating system. Males gather t ...
... 15-16 inches. LPCs require large tracts of relatively intact native grasslands and prairies to survive. LPCs, particularly nesting hens, avoid vertical structures because they are often used as perches by predators such as hawks, eagles and owls. LPCs also exhibit a lek mating system. Males gather t ...