Management of Marsh-Upland Transitional Habitats
... not) providing. By utilizing mapping efforts at both scales, managers are provided measures of habitat “health” and resilience at both the planning and design scales. Consequently, efforts to enhance the overall functioning and resilience of MUTH, as an important component of the estuarine system in ...
... not) providing. By utilizing mapping efforts at both scales, managers are provided measures of habitat “health” and resilience at both the planning and design scales. Consequently, efforts to enhance the overall functioning and resilience of MUTH, as an important component of the estuarine system in ...
On evolutionary stability in predator–prey models with fast
... habitat selection, and activity budget (for a review, see Bolker et al., 2003). These works assume that animal behaviour maximizes fitness at the current population densities. Similarly, there is a long line of research on the interface between the population and evolutionary time-scale. For instanc ...
... habitat selection, and activity budget (for a review, see Bolker et al., 2003). These works assume that animal behaviour maximizes fitness at the current population densities. Similarly, there is a long line of research on the interface between the population and evolutionary time-scale. For instanc ...
Productivity, dispersal and the coexistence of intraguild predators
... IGP is strong and/or when the Intraguild Prey has an overall advantage, and impedes coexistence when the trade-off is weak and/or when the Intraguild Predator has an overall advantage. Second, the Intraguild Prey’s abundance–productivity relationship depends crucially on the dispersal rate of the In ...
... IGP is strong and/or when the Intraguild Prey has an overall advantage, and impedes coexistence when the trade-off is weak and/or when the Intraguild Predator has an overall advantage. Second, the Intraguild Prey’s abundance–productivity relationship depends crucially on the dispersal rate of the In ...
Sage Grouse Habitat Requirements
... Winter habitat for sage grouse varies according to weather conditions. But regardless of weather, the presence of sagebrush for food and cover is the common denominator. Sage grouse feed almost exclusively on sagebrush leaves at this time of year. At least 10 to 12 inches of sagebrush must be expose ...
... Winter habitat for sage grouse varies according to weather conditions. But regardless of weather, the presence of sagebrush for food and cover is the common denominator. Sage grouse feed almost exclusively on sagebrush leaves at this time of year. At least 10 to 12 inches of sagebrush must be expose ...
paper
... communities and ecosystems disproportionate to their abundance, often via predation), dominant species (common species with large effects on communities and ecosystems, often via competition), and foundation and facultative species (i.e., habitat-creating species; ...
... communities and ecosystems disproportionate to their abundance, often via predation), dominant species (common species with large effects on communities and ecosystems, often via competition), and foundation and facultative species (i.e., habitat-creating species; ...
Effects of disturbance and habitat loss on papyrus
... many conservation problems (Perrings et al., 1992). The ability to determine how biodiversity is affected by habitat modification has become a major focus of ecology and biological conservation. Different species, even within a taxonomic group, may exhibit different responses to factors such as habi ...
... many conservation problems (Perrings et al., 1992). The ability to determine how biodiversity is affected by habitat modification has become a major focus of ecology and biological conservation. Different species, even within a taxonomic group, may exhibit different responses to factors such as habi ...
PROCEEDINGS STREAKED HORNED LARK WORKSHOP 2007
... Because Larks are more abundant in Oregon than in Washington, the native prairie-Oregon group felt that the need to further understand the ecology was of primary importance. They discussed the need to learn more about site selection, reproductive success, what is driving distribution in the Valley. ...
... Because Larks are more abundant in Oregon than in Washington, the native prairie-Oregon group felt that the need to further understand the ecology was of primary importance. They discussed the need to learn more about site selection, reproductive success, what is driving distribution in the Valley. ...
Hixon, M. A., P. W. Pacala, and S. A. Sandin. 2002. Population
... Abstract. By definition, a population is regulated if it persists for many generations with fluctuations bounded above zero with high probability. Regulation thus requires density-dependent negative feedback whereby the population has a propensity to increase when small and decrease when large. Ulti ...
... Abstract. By definition, a population is regulated if it persists for many generations with fluctuations bounded above zero with high probability. Regulation thus requires density-dependent negative feedback whereby the population has a propensity to increase when small and decrease when large. Ulti ...
temporospatial distributions of elk, mule deer, and cattle: resource
... and 25 elk. Cattle were stocked at a moderate to high population density for the Blue Mountains of Oregon (Rowland et al. 1997). Annual recruitment of young elk on Starkey was 35–50 young:100 adult females and averaged 41 (69.6 SD) from 1989 to 1995. Recruitment rate on our study area indicated that ...
... and 25 elk. Cattle were stocked at a moderate to high population density for the Blue Mountains of Oregon (Rowland et al. 1997). Annual recruitment of young elk on Starkey was 35–50 young:100 adult females and averaged 41 (69.6 SD) from 1989 to 1995. Recruitment rate on our study area indicated that ...
Proposed structure of synthese paper
... Jana Verboom, Team Biodiversity and Policy, Alterra, Wageningen UR, P.O. Box 47, NL6700 AA Wageningen, The Netherlands. Email: [email protected] ...
... Jana Verboom, Team Biodiversity and Policy, Alterra, Wageningen UR, P.O. Box 47, NL6700 AA Wageningen, The Netherlands. Email: [email protected] ...
Lesson Overview
... How quickly is the global human population growing? In the United States and other developed countries, the population growth rate is low. In some developing countries, the population is growing very rapidly. Worldwide, there are more than four human births every second. What does the present and fu ...
... How quickly is the global human population growing? In the United States and other developed countries, the population growth rate is low. In some developing countries, the population is growing very rapidly. Worldwide, there are more than four human births every second. What does the present and fu ...
Wolverine (Gulo gulo), Eastern Population
... Unknown. Although the persistence of individuals of the Eastern population is uncertain in Quebec and Labrador, a rescue effect 3 from dispersing individuals of the Western population in northwestern Ontario could possibly contribute to the natural reestablishment of the species. If the recovery of ...
... Unknown. Although the persistence of individuals of the Eastern population is uncertain in Quebec and Labrador, a rescue effect 3 from dispersing individuals of the Western population in northwestern Ontario could possibly contribute to the natural reestablishment of the species. If the recovery of ...
Interference versus exploitative competition in the regulation of size
... functional responses, extending existing functional response models to account for both intra- and interspecific interference behaviors, showing in their case study that intraspecific interference is more effective than interspecific competition in regulating population dynamics. The sign and streng ...
... functional responses, extending existing functional response models to account for both intra- and interspecific interference behaviors, showing in their case study that intraspecific interference is more effective than interspecific competition in regulating population dynamics. The sign and streng ...
Reading Biodiversity Action Plan
... Most of Reading lies on the north western edge of this large Natural Area. The London Basin Natural Area is characterised by being low lying land, created from old river terraces and glacial outwash of clays, gravels and sands. As with Reading, rivers cut through the Natural Area, bringing along dif ...
... Most of Reading lies on the north western edge of this large Natural Area. The London Basin Natural Area is characterised by being low lying land, created from old river terraces and glacial outwash of clays, gravels and sands. As with Reading, rivers cut through the Natural Area, bringing along dif ...
Habitat selection, reproduction and predation of wintering
... combined with the absence of freezing rain and days with above zero temperatures should favour survival and reproduction (Reid and Krebs 1996; Solonen 2006). Recent evidence suggests that population cycles of small mammals of the tundra may be fading out in some areas, especially in Fennoscandia (Ho ...
... combined with the absence of freezing rain and days with above zero temperatures should favour survival and reproduction (Reid and Krebs 1996; Solonen 2006). Recent evidence suggests that population cycles of small mammals of the tundra may be fading out in some areas, especially in Fennoscandia (Ho ...
Feeding Selectivity and Habitat Usage of Esox americanus
... high quality prey even if the costs associated with search and handling times are large; whereas generalists attempt to minimize search and handling times by taking any prey available. Thus, variability of resources in the environment will temporally and spatially influence species’ relative placeme ...
... high quality prey even if the costs associated with search and handling times are large; whereas generalists attempt to minimize search and handling times by taking any prey available. Thus, variability of resources in the environment will temporally and spatially influence species’ relative placeme ...
Representations of the ecological niche
... The fundamental niche F uN is a concept consisting mainly of a combination of conditions, in ecology called categories (from the ‘n-category theory’), to construct a hypervolume in multidimensional space (see §2.3). In ontology terminology, the ‘category’ is a combination of a quality/feature/proper ...
... The fundamental niche F uN is a concept consisting mainly of a combination of conditions, in ecology called categories (from the ‘n-category theory’), to construct a hypervolume in multidimensional space (see §2.3). In ontology terminology, the ‘category’ is a combination of a quality/feature/proper ...
Predation Risk Influences Adaptive Morphological Variation in Fish
... Besides direct effects through natural selection, predation can cause a variety of indirect effects that likely could produce evolutionary shifts. However, theoretical exploration of the evolutionary effects of indirect interactions is still in its infancy, and empirical examples are strongly needed ...
... Besides direct effects through natural selection, predation can cause a variety of indirect effects that likely could produce evolutionary shifts. However, theoretical exploration of the evolutionary effects of indirect interactions is still in its infancy, and empirical examples are strongly needed ...
Ontario Moose Resource Report for WMU 01A
... variety of sources, including predation and harvest. The minimum desired calf survival each year is at least 30 calves per 100 cows to help ensure the population is maintained. Estimates of calf abundance were below this level in recent surveys (Figure 1). ...
... variety of sources, including predation and harvest. The minimum desired calf survival each year is at least 30 calves per 100 cows to help ensure the population is maintained. Estimates of calf abundance were below this level in recent surveys (Figure 1). ...
Derrick Coffee - East Sussex County Council
... We strongly feel that any appraisal of the 180 documents by the public – many of them technical would be very difficult. For us there is a compelling case for a non-technical summary update. For us, the Combe Haven Valley is a very special place in landscape terms, terms of biodiversity and in terms ...
... We strongly feel that any appraisal of the 180 documents by the public – many of them technical would be very difficult. For us there is a compelling case for a non-technical summary update. For us, the Combe Haven Valley is a very special place in landscape terms, terms of biodiversity and in terms ...
Foraging Habitat of Sepia officinalis at STARESO Research Station
... and around STARESO harbor. Permanent transect lines were laid out in the harbor, in the cove immediately south of the harbor and just to the north of the harbor. Non-fixed transects were conducted perpendicularly off of these main transect line at intervals of 5 meters starting at the surface or as ...
... and around STARESO harbor. Permanent transect lines were laid out in the harbor, in the cove immediately south of the harbor and just to the north of the harbor. Non-fixed transects were conducted perpendicularly off of these main transect line at intervals of 5 meters starting at the surface or as ...
Breeding habitat selection of sympatric White
... Burnham and Anderson 2002). Given the smaller sample size, we only examined habitat selection of Willow Ptarmigan with descriptive statistics. We only used the initial nesting attempt for a female in a particular year due to confounding effects of seasonal change in vegetation on later renest attemp ...
... Burnham and Anderson 2002). Given the smaller sample size, we only examined habitat selection of Willow Ptarmigan with descriptive statistics. We only used the initial nesting attempt for a female in a particular year due to confounding effects of seasonal change in vegetation on later renest attemp ...
habitat connectivity for carnivores in mediterranean landscapes
... fragmentation, although mongoose movement may be limited to shorter distances when landscape connectivity is low. Roads, on the other hand, appear to be selectively permeable and may act as filters to movement. On average, 47 carnivores/100 km/year were road-killed, with red fox suffering the highes ...
... fragmentation, although mongoose movement may be limited to shorter distances when landscape connectivity is low. Roads, on the other hand, appear to be selectively permeable and may act as filters to movement. On average, 47 carnivores/100 km/year were road-killed, with red fox suffering the highes ...
Northern Barrens Tiger Beetle
... within these sandy openings. Adults forage in the same habitat and have a two-year life cycle. This species is a globally rare insect found in eastern North America, with its native range extending from West Virginia north to southern Ontario and southern Quebec. In Ontario, only two populations hav ...
... within these sandy openings. Adults forage in the same habitat and have a two-year life cycle. This species is a globally rare insect found in eastern North America, with its native range extending from West Virginia north to southern Ontario and southern Quebec. In Ontario, only two populations hav ...
