aquatic and terrestrial habitat selection by - ETH E
... selection, thereby contrasting with classical expectations. The typically high variation in environmental conditions that are maintained by disturbances such as ...
... selection, thereby contrasting with classical expectations. The typically high variation in environmental conditions that are maintained by disturbances such as ...
Habitat Selection and Indirect Interactions in Fish Communities
... sizes (Persson, 1988; Polis, 1988). Thus, in size-structured populations, such as characterize fish species, distribution among habitats is governed by sizedependent trade-offs between growth and mortality (Werner et al., 1983a; Werner & Gilliam, 1984; Fraser & Gilliam, 1987; Gilliam & Fraser, 1987) ...
... sizes (Persson, 1988; Polis, 1988). Thus, in size-structured populations, such as characterize fish species, distribution among habitats is governed by sizedependent trade-offs between growth and mortality (Werner et al., 1983a; Werner & Gilliam, 1984; Fraser & Gilliam, 1987; Gilliam & Fraser, 1987) ...
effects of habitat fragmentation on biodiversity
... habitat removal: “fragmentation . . . not only causes loss of the amount of habitat, but by creating small, isolated patches it also changes the properties of the remaining habitat” (van den Berg et al. 2001). Habitat can be removed from a landscape in many different ways, resulting in many differen ...
... habitat removal: “fragmentation . . . not only causes loss of the amount of habitat, but by creating small, isolated patches it also changes the properties of the remaining habitat” (van den Berg et al. 2001). Habitat can be removed from a landscape in many different ways, resulting in many differen ...
EFFECTS OF HABITAT FRAGMENTATION ON
... habitat removal: “fragmentation . . . not only causes loss of the amount of habitat, but by creating small, isolated patches it also changes the properties of the remaining habitat” (van den Berg et al. 2001). Habitat can be removed from a landscape in many different ways, resulting in many differen ...
... habitat removal: “fragmentation . . . not only causes loss of the amount of habitat, but by creating small, isolated patches it also changes the properties of the remaining habitat” (van den Berg et al. 2001). Habitat can be removed from a landscape in many different ways, resulting in many differen ...
Corridor Length and Patch Colonization by a Butterfly, Junonia coenia
... patch of suitable habitat. If a corridor is similar in habitat to a patch, there may be no barrier to dispersal, and corridors may be the preferred route of emigration. In an isolated patch not connected by corridors, boundaries are more likely to limit dispersal. In a few instances, boundaries betw ...
... patch of suitable habitat. If a corridor is similar in habitat to a patch, there may be no barrier to dispersal, and corridors may be the preferred route of emigration. In an isolated patch not connected by corridors, boundaries are more likely to limit dispersal. In a few instances, boundaries betw ...
landscape connectivity: a return to the basics
... that facilitate movement need not be discrete features of the landscape such as habitat corridors, but may occur where the juxtaposition of particular habitats or land uses act to funnel dispersers between habitat patches. Using an individual-based simulation model, Gustafson and Gardner (1996) demo ...
... that facilitate movement need not be discrete features of the landscape such as habitat corridors, but may occur where the juxtaposition of particular habitats or land uses act to funnel dispersers between habitat patches. Using an individual-based simulation model, Gustafson and Gardner (1996) demo ...
Ocelot CH Petition - WildEarth Guardians
... …to use and the use of all methods and procedures which are necessary to bring any endangered species or threatened species to the point at which the measures provided pursuant to this Act are no longer necessary. Such methods and procedures include, but are not limited to, all activities associated ...
... …to use and the use of all methods and procedures which are necessary to bring any endangered species or threatened species to the point at which the measures provided pursuant to this Act are no longer necessary. Such methods and procedures include, but are not limited to, all activities associated ...
Rountree, R.A., and K.W. Able. 2007
... The space potentially used by an organism, population, species or community of organisms that provides resources necessary for survival, growth, and/or reproduction that is defined based on perceived dominant physical or biological characteristics’’ (e.g., salt marsh, coral reef, marsh creek, etc.). ...
... The space potentially used by an organism, population, species or community of organisms that provides resources necessary for survival, growth, and/or reproduction that is defined based on perceived dominant physical or biological characteristics’’ (e.g., salt marsh, coral reef, marsh creek, etc.). ...
California Red-Legged Frog (Rana aurora draytonii)
... areas, and pipeline maintenance. These activities would affect upland habitats such as nonnative grasslands that are used by this species. Construction of roads and bridges would result in permanent impacts; however, the remaining activities would have only temporary impacts and not result in loss o ...
... areas, and pipeline maintenance. These activities would affect upland habitats such as nonnative grasslands that are used by this species. Construction of roads and bridges would result in permanent impacts; however, the remaining activities would have only temporary impacts and not result in loss o ...
CONSUMPTIVE AND NONCONSUMPTIVE EFFECTS OF PREDATORS ON METACOMMUNITIES OF COMPETING PREY J
... consumptive effects (Holt 1997, Nee et al. 1997, Bascompte and Sole 1998, Diehl et al. 2000, Swihart et al. 2001, Melian and Bascompte 2002) have shown that predator-mediated changes in prey extinction can have important consequences for the dynamics of specialist predators and their prey. In the me ...
... consumptive effects (Holt 1997, Nee et al. 1997, Bascompte and Sole 1998, Diehl et al. 2000, Swihart et al. 2001, Melian and Bascompte 2002) have shown that predator-mediated changes in prey extinction can have important consequences for the dynamics of specialist predators and their prey. In the me ...
reproductive success responses to habitat fragmentation in
... Landscapes are naturally dynamic due to storms, fires and other natural events, but anthropogenic causes of landscape change are increasing at an unprecedented rate. In the model of Forman (1995) five processes act together to cause the fragmentation of habitats (Fig. 1). The most com ...
... Landscapes are naturally dynamic due to storms, fires and other natural events, but anthropogenic causes of landscape change are increasing at an unprecedented rate. In the model of Forman (1995) five processes act together to cause the fragmentation of habitats (Fig. 1). The most com ...
MODELING CARNIVORE HABITAT IN THE ROCKY MOUNTAIN
... Management and jurisdictional boundaries have fragmented habitat analysis. A spatially-explicit analysis of habitat capability at the biologically-appropriate scale has never been completed. These problems affect management of all of the region’s carnivore species, but their effect is most dramatic ...
... Management and jurisdictional boundaries have fragmented habitat analysis. A spatially-explicit analysis of habitat capability at the biologically-appropriate scale has never been completed. These problems affect management of all of the region’s carnivore species, but their effect is most dramatic ...
Passerine Relationships with Habitat Heterogeneity and Grazing at Multiple Scales
... heterogeneity on avian richness, diversity, and abundance within two spatial scales (plot, pasture) at Grasslands National Park, Saskatchewan, Canada. Grazing exclusion in the park has resulted in an increasingly homogenized landscape, which may result in exclusion of some grassland bird species due ...
... heterogeneity on avian richness, diversity, and abundance within two spatial scales (plot, pasture) at Grasslands National Park, Saskatchewan, Canada. Grazing exclusion in the park has resulted in an increasingly homogenized landscape, which may result in exclusion of some grassland bird species due ...
measuring habitat quality: a review
... managers, but few papers have explored the advantages and disadvantages of different ways to measure it. In this review I clarify terminology and distinguish habitat quality from related terms, differentiate habitat quality at the levels of individual birds and populations, and describe different fi ...
... managers, but few papers have explored the advantages and disadvantages of different ways to measure it. In this review I clarify terminology and distinguish habitat quality from related terms, differentiate habitat quality at the levels of individual birds and populations, and describe different fi ...
Ballarat West Growth Area
... construction of housing, associated infrastructure and recreational opportunities. As such, the Project triggers a number of known threatening processes affecting this species, principally habitat loss via the removal of known GGF habitat to consolidate the Project’s layout. Thus, without mitigation ...
... construction of housing, associated infrastructure and recreational opportunities. As such, the Project triggers a number of known threatening processes affecting this species, principally habitat loss via the removal of known GGF habitat to consolidate the Project’s layout. Thus, without mitigation ...
Recovery Plan Appendix B
... 2. All of the species in Gatton and Laidley Shires listed as endangered, vulnerable or rare under the Queensland Nature Conservation Regulation 1994. 3. All of the ecological communities in Gatton and Laidley Shires that have a status of endangered or of-concern under the Queensland Vegetation Manag ...
... 2. All of the species in Gatton and Laidley Shires listed as endangered, vulnerable or rare under the Queensland Nature Conservation Regulation 1994. 3. All of the ecological communities in Gatton and Laidley Shires that have a status of endangered or of-concern under the Queensland Vegetation Manag ...
Habitat complexity: approaches and future directions
... At the patch scale, habitat complexity can increase species richness over and above effects of patch size (Taniguchi et al., 2003; Matias et al., 2010), illustrating the importance of the physical habitat per se in a range of systems and at multiple spatial scales, and its independent effects from s ...
... At the patch scale, habitat complexity can increase species richness over and above effects of patch size (Taniguchi et al., 2003; Matias et al., 2010), illustrating the importance of the physical habitat per se in a range of systems and at multiple spatial scales, and its independent effects from s ...
Small mouthed Salamander (Ambystoma texanum)
... The federal, provincial, and territorial government signatories under the Accord for the Protection of Species at Risk (1996) 2 agreed to establish complementary legislation and programs that provide for effective protection of species at risk throughout Canada. Under the Species at Risk Act (S.C. 2 ...
... The federal, provincial, and territorial government signatories under the Accord for the Protection of Species at Risk (1996) 2 agreed to establish complementary legislation and programs that provide for effective protection of species at risk throughout Canada. Under the Species at Risk Act (S.C. 2 ...
fragmentation of terrestrial habitat
... public and private dollars have been spent on habitat acquisition and wildlife conservation efforts to offset the effects of fragmentation. Recently, however, the conceptual basis of habitat fragmentation has been questioned along with how it is assessed. The primary reasons for questioning the conc ...
... public and private dollars have been spent on habitat acquisition and wildlife conservation efforts to offset the effects of fragmentation. Recently, however, the conceptual basis of habitat fragmentation has been questioned along with how it is assessed. The primary reasons for questioning the conc ...
Insect herbivory in an experimental agroecosystem: the relative
... habitat area, habitat fragmentation or matrix composition. In addition, we tested whether clover biomass at control locations was influenced by the plot treatments using a three-way ANOVA. The clover biomass data were squareroot transformed prior to these analyses to homogenize variances and improve ...
... habitat area, habitat fragmentation or matrix composition. In addition, we tested whether clover biomass at control locations was influenced by the plot treatments using a three-way ANOVA. The clover biomass data were squareroot transformed prior to these analyses to homogenize variances and improve ...
Comparative size evolution of marine clades from the Late Permian
... species in the later stage (T2) were likewise separated into survivors from the preceding stage and species originating in the later stage (T2). To determine the within-lineage evolution component of size change, it was important to have size measurements for the surviving species from both before a ...
... species in the later stage (T2) were likewise separated into survivors from the preceding stage and species originating in the later stage (T2). To determine the within-lineage evolution component of size change, it was important to have size measurements for the surviving species from both before a ...
Wallum Sedge Frog - Byron Shire Council
... et al. 2005, DEH 2006). The patchy distribution of Wallum Sedge Frogs within this area is closely linked to the occurrence of suitable “wallum” habitat (Coaldrake ...
... et al. 2005, DEH 2006). The patchy distribution of Wallum Sedge Frogs within this area is closely linked to the occurrence of suitable “wallum” habitat (Coaldrake ...
Recovery Strategy for the Butler`s Gartersnake (Thamnophis butleri
... programs that provide for effective protection of species at risk throughout Canada. Under the Species at Risk Act (S.C. 2002, c.29) (SARA), the federal competent ministers are responsible for the preparation of recovery strategies for listed Extirpated, Endangered, and Threatened species and are re ...
... programs that provide for effective protection of species at risk throughout Canada. Under the Species at Risk Act (S.C. 2002, c.29) (SARA), the federal competent ministers are responsible for the preparation of recovery strategies for listed Extirpated, Endangered, and Threatened species and are re ...
Spatial dynamics of mutualistic interactions
... 1. I present a model of mutualistic interactions in a patchy landscape. The interaction is between two species that differ in their mobility. The landscape is spatially structured, with several localities interconnected by dispersal of the mobile mutualist. 2. Within a given locality, an Allee effec ...
... 1. I present a model of mutualistic interactions in a patchy landscape. The interaction is between two species that differ in their mobility. The landscape is spatially structured, with several localities interconnected by dispersal of the mobile mutualist. 2. Within a given locality, an Allee effec ...
Demographic Costs Associated with Differences in Habitat Space
... for a species and delimits its range [8–11]. This niche space consists of multiple habitat axes because different environmental characteristics may be needed for different aspects of a species’ life history [2,12]. Some habitats may contain resources along critical axes, such as for foraging, but in ...
... for a species and delimits its range [8–11]. This niche space consists of multiple habitat axes because different environmental characteristics may be needed for different aspects of a species’ life history [2,12]. Some habitats may contain resources along critical axes, such as for foraging, but in ...