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Spatial Ecology of Wolverines in Scandinavia
... The papers included within this thesis were based on data from radio-marked individuals in the different study areas, locations of predator-killed free-ranging sheep and locations of natal den sites. The last two data sources were taken from the national carnivore database “Rovbase”. Radio-tracking ...
... The papers included within this thesis were based on data from radio-marked individuals in the different study areas, locations of predator-killed free-ranging sheep and locations of natal den sites. The last two data sources were taken from the national carnivore database “Rovbase”. Radio-tracking ...
Biotic resistance experienced by an invasive crustacean
... smaller crabs of their own species. Crabs of both species were collected and sorted by weight into three size classes: small, medium and large. Small and medium crabs of both species were paired with C. maenas and C. productus of various sizes. When conspecifics were paired, mortality was less than ...
... smaller crabs of their own species. Crabs of both species were collected and sorted by weight into three size classes: small, medium and large. Small and medium crabs of both species were paired with C. maenas and C. productus of various sizes. When conspecifics were paired, mortality was less than ...
Seasonal shifts in predator diversity
... size classes) changes during a season. I used a field experiment to test (i) how seasonal changes in size distribution influence the mortality rates of natural populations and (ii) whether the change in mortality can be predicted simply based on per-capita effects of individual size classes or whether ...
... size classes) changes during a season. I used a field experiment to test (i) how seasonal changes in size distribution influence the mortality rates of natural populations and (ii) whether the change in mortality can be predicted simply based on per-capita effects of individual size classes or whether ...
Spatial Ecology of Wolverines in Scandinavia
... The papers included within this thesis were based on data from radio-marked individuals in the different study areas, locations of predator-killed free-ranging sheep and locations of natal den sites. The last two data sources were taken from the national carnivore database “Rovbase”. Radio-tracking ...
... The papers included within this thesis were based on data from radio-marked individuals in the different study areas, locations of predator-killed free-ranging sheep and locations of natal den sites. The last two data sources were taken from the national carnivore database “Rovbase”. Radio-tracking ...
SPATIAL SYNCHRONY IN POPULATION DYNAMICS ∗ Andrew
... the analysis of population time series (Kendall et al. 1999, Royama 1981, Turchin 1990). These studies characterize temporal patterns (measured by autocorrelation functions, periodograms and similar types of analytical techniques) and use this information to infer the relative role of biotic and abi ...
... the analysis of population time series (Kendall et al. 1999, Royama 1981, Turchin 1990). These studies characterize temporal patterns (measured by autocorrelation functions, periodograms and similar types of analytical techniques) and use this information to infer the relative role of biotic and abi ...
SPATIAL SYNCHRONY IN POPULATION DYNAMICS∗ Andrew
... the analysis of population time series (Kendall et al. 1999, Royama 1981, Turchin 1990). These studies characterize temporal patterns (measured by autocorrelation functions, periodograms and similar types of analytical techniques) and use this information to infer the relative role of biotic and abi ...
... the analysis of population time series (Kendall et al. 1999, Royama 1981, Turchin 1990). These studies characterize temporal patterns (measured by autocorrelation functions, periodograms and similar types of analytical techniques) and use this information to infer the relative role of biotic and abi ...
Nekton use of marsh-surface habitats in Louisiana (USA) deltaic salt
... predominantly diurnal and have a mean range of apchanges from uniform, intact stands of vegetation to proximately 0.4 m (Shirzad et al. 1989, U.S.Departbare substrate interspersed by small patches of vegetament of Commerce 1990). Chabreck & Linscombe tion. In these bare areas where vegetation is no ...
... predominantly diurnal and have a mean range of apchanges from uniform, intact stands of vegetation to proximately 0.4 m (Shirzad et al. 1989, U.S.Departbare substrate interspersed by small patches of vegetament of Commerce 1990). Chabreck & Linscombe tion. In these bare areas where vegetation is no ...
Alberta Ords Kangaroo Rat Recovery Plan 2013 -2018
... grassland or open scrubland with bare, sandy soil and very sparse vegetation cover. In Alberta, these features are rare and make up a relatively small proportion of the landscape, which accounts for their limited distribution in the province (Gummer 1997b; Gummer and Robertson 2003a; Bender et al. 2 ...
... grassland or open scrubland with bare, sandy soil and very sparse vegetation cover. In Alberta, these features are rare and make up a relatively small proportion of the landscape, which accounts for their limited distribution in the province (Gummer 1997b; Gummer and Robertson 2003a; Bender et al. 2 ...
What makes a species common? No evidence of density
... in a density-dependent manner at this spatial scale. Second, adult sea urchins are known to provide a spine canopy refuge for newly settled individuals in other species (Nishizaki and Ackerman 2006) and thus might increase juvenile survivorship in a density-dependent manner at this spatial scale. If ...
... in a density-dependent manner at this spatial scale. Second, adult sea urchins are known to provide a spine canopy refuge for newly settled individuals in other species (Nishizaki and Ackerman 2006) and thus might increase juvenile survivorship in a density-dependent manner at this spatial scale. If ...
Relative importance of recruitment and other causes of variation in
... algae were the dominant space occupants in mid and low zones while most high zone space was bare rock. Although solitary sessile organisms tended to be more abundant at both wave-exposed and wave-protected sites, total abundances were always low (typically < 10% cover) at all tide heights and at all ...
... algae were the dominant space occupants in mid and low zones while most high zone space was bare rock. Although solitary sessile organisms tended to be more abundant at both wave-exposed and wave-protected sites, total abundances were always low (typically < 10% cover) at all tide heights and at all ...
Effect of intra-and interspecific interactions on the feeding behavior
... changes at the population level, such as migration and decreases in survival and reproductive output (Menge 1974, Schoener 1982, 1983, Resetarits 1997). Ultimately, competition may have evolutionary effects, as changes in the morphology and behavior of different species will influence how many speci ...
... changes at the population level, such as migration and decreases in survival and reproductive output (Menge 1974, Schoener 1982, 1983, Resetarits 1997). Ultimately, competition may have evolutionary effects, as changes in the morphology and behavior of different species will influence how many speci ...
Potential Impacts of a Western Pacific Grapsid Crab on Intertidal
... 1996 (V. Gerard and J. DiLeo, unpublished data), further suggesting that they move to lower tidal elevations and possibly into the subtidal to escape freezing conditions. The presence of large individuals (30–35 mm CW) at Crane Neck Pt. indicates that initial recruitment of H. sanguineus occurred fi ...
... 1996 (V. Gerard and J. DiLeo, unpublished data), further suggesting that they move to lower tidal elevations and possibly into the subtidal to escape freezing conditions. The presence of large individuals (30–35 mm CW) at Crane Neck Pt. indicates that initial recruitment of H. sanguineus occurred fi ...
KATARINA OGANJAN Distribution, feeding and
... have a physiological influence on species but are not consumed, e.g. temperature and salinity. Indirect environmental gradients do not themselves have a direct physiological influence but represent proxies for a set of other underlying direct gradients, e.g. water depth is a typical indirect variabl ...
... have a physiological influence on species but are not consumed, e.g. temperature and salinity. Indirect environmental gradients do not themselves have a direct physiological influence but represent proxies for a set of other underlying direct gradients, e.g. water depth is a typical indirect variabl ...
SPECIES AND HABITAT ASSESSMENTS AND CONSERVATION
... Appalachian region than anywhere else in the country; the pattern for land snails is the same. Finally, Mid-Atlantic Coastal Forests contain the most diverse assemblage of freshwater wetlands in all of North America (Ricketts et al. 1999). Among southeastern states, North Carolina contains some of t ...
... Appalachian region than anywhere else in the country; the pattern for land snails is the same. Finally, Mid-Atlantic Coastal Forests contain the most diverse assemblage of freshwater wetlands in all of North America (Ricketts et al. 1999). Among southeastern states, North Carolina contains some of t ...
Wildlife in alpine and sub-alpine habitats
... habitats across one or more seasons. Alpine habitats are essentially vertical islands. Some animals, such as white-tailed ptarmigan, hoary marmots and mountain goats, remain in their high elevation ‘islands’ yearround, and leave only to travel to other alpine patches. However, the majority of specie ...
... habitats across one or more seasons. Alpine habitats are essentially vertical islands. Some animals, such as white-tailed ptarmigan, hoary marmots and mountain goats, remain in their high elevation ‘islands’ yearround, and leave only to travel to other alpine patches. However, the majority of specie ...
Invasive alien species in protected areas
... or eradicate those alien species which threaten ecosystems, habitats and species” (Article 8 (h). The Conference of the Parties to the Ramsar Convention addresses IAS in coastal and inland wetlands. Resolution VIII/18 (Invasive Species and Wetlands) urges Ramsar Parties, among other, "to address the ...
... or eradicate those alien species which threaten ecosystems, habitats and species” (Article 8 (h). The Conference of the Parties to the Ramsar Convention addresses IAS in coastal and inland wetlands. Resolution VIII/18 (Invasive Species and Wetlands) urges Ramsar Parties, among other, "to address the ...
Rountree, R.A., and K.W. Able. 2007
... the gaps. This discussion is not meant to provide an exhaustive review of the available literature on this subject, but rather to present a picture of what is known about how marshes function as a habitat for nekton and the processes that regulate habitat selection and movements by salt marsh nekton ...
... the gaps. This discussion is not meant to provide an exhaustive review of the available literature on this subject, but rather to present a picture of what is known about how marshes function as a habitat for nekton and the processes that regulate habitat selection and movements by salt marsh nekton ...
Invasive Plants: Ecological and Agricultural Aspects
... Approaches to predicting invasion success across scales of observation, as a function of species characteristics, ecosystem properties, variation in species residence time before establishment, and anthropogenic effects, form a second theme. The authors clearly call for a mechanistic understanding o ...
... Approaches to predicting invasion success across scales of observation, as a function of species characteristics, ecosystem properties, variation in species residence time before establishment, and anthropogenic effects, form a second theme. The authors clearly call for a mechanistic understanding o ...
Effects of productivity, disturbance, and ecosystem size on food
... and the establishment probabilities within patches, depend only on species identity, but not on patch states, and moreover that all species share a common and quantitatively equivalent susceptibility to disturbance, irrespective of patch states. A more general model without these assumptions was pre ...
... and the establishment probabilities within patches, depend only on species identity, but not on patch states, and moreover that all species share a common and quantitatively equivalent susceptibility to disturbance, irrespective of patch states. A more general model without these assumptions was pre ...
Invasions by Harmonia axyridis - North Central Research Station
... coccinellid is frequently associated with trees in natural and agricultural settings when prey is available (Table 1). In addition, this semi-arboreal predator also occurs in various herbaceous habitats, including agricultural (reviewed by Koch 2003) and natural (Sebolt & Landis 2004, RLK unpublishe ...
... coccinellid is frequently associated with trees in natural and agricultural settings when prey is available (Table 1). In addition, this semi-arboreal predator also occurs in various herbaceous habitats, including agricultural (reviewed by Koch 2003) and natural (Sebolt & Landis 2004, RLK unpublishe ...
017 966 Cooper 18.indd
... Mayer et al. 2002), which would enable comparisons to the present study. Paired quantitative samples (each sample was either a single cobble-sized rock or a sand grab, 12 samples per transect) were taken at each of six depths starting at the shoreline (<0.2 m, 0.6 m, 1.2 m, 1.8 m, 3.0 m, and >3.8 m) ...
... Mayer et al. 2002), which would enable comparisons to the present study. Paired quantitative samples (each sample was either a single cobble-sized rock or a sand grab, 12 samples per transect) were taken at each of six depths starting at the shoreline (<0.2 m, 0.6 m, 1.2 m, 1.8 m, 3.0 m, and >3.8 m) ...
National Recovery Plan for the Spotted
... typical of this habitat are simple and complex notophyll vine forest, simple microphyll vine-fern forest and simple microphyll vine-fern thicket. The southern subspecies, D. m. maculatus, has been recorded from a wide range of habitat types including rainforest, wet and dry sclerophyll forest, coast ...
... typical of this habitat are simple and complex notophyll vine forest, simple microphyll vine-fern forest and simple microphyll vine-fern thicket. The southern subspecies, D. m. maculatus, has been recorded from a wide range of habitat types including rainforest, wet and dry sclerophyll forest, coast ...
Recovery Plan for the Yellow-bellied Glider
... (Petaurus australis) and, as such, considers the conservation requirements of the species across its known range in NSW. It identifies the actions to be taken to ensure the long-term viability of the Yellowbellied Glider in nature and the parties who will undertake these actions. The Yellow-bellied ...
... (Petaurus australis) and, as such, considers the conservation requirements of the species across its known range in NSW. It identifies the actions to be taken to ensure the long-term viability of the Yellowbellied Glider in nature and the parties who will undertake these actions. The Yellow-bellied ...
South Australian Arid Lands Biodiversity Strategy
... supports variety of habitats. The arid north is underlain by basement rock up to 2,000 million years old, and is covered by sand plains and dunes that support Mulga woodlands and chenopod shrublands. The neighbouring undulating, gibber-covered Arcoona tablelands are much younger in comparison. The g ...
... supports variety of habitats. The arid north is underlain by basement rock up to 2,000 million years old, and is covered by sand plains and dunes that support Mulga woodlands and chenopod shrublands. The neighbouring undulating, gibber-covered Arcoona tablelands are much younger in comparison. The g ...
. American Mink, Neovison vison Overview Overview table Invasion
... The American mink is almost ubiquitous in GB but, except for parts of northern Scotland, Arran, the Outer Hebrides and most offshore islands. The GB population size was estimated at 36,950 in 2004. ...
... The American mink is almost ubiquitous in GB but, except for parts of northern Scotland, Arran, the Outer Hebrides and most offshore islands. The GB population size was estimated at 36,950 in 2004. ...