Long-footed potoroo - recovery plan (PDF
... The species has an extremely limited range in New South Wales. It is apparently restricted to damp and wet sclerophyll forest communities within South East Forests National Park in the south of the State. While no animals have ever been live-captured, intensive hair-sampling tube and predator-scat b ...
... The species has an extremely limited range in New South Wales. It is apparently restricted to damp and wet sclerophyll forest communities within South East Forests National Park in the south of the State. While no animals have ever been live-captured, intensive hair-sampling tube and predator-scat b ...
The influence of landscape heterogeneity on amphibian
... Amphibians are a good health indicator of environmental conditions due to their habitat requirements and physiological nature. They are moisture dependant ectotherms and require both aquatic and terrestrial habitats to exist. Factors that influence habitat selection are varied in species; amphibians ...
... Amphibians are a good health indicator of environmental conditions due to their habitat requirements and physiological nature. They are moisture dependant ectotherms and require both aquatic and terrestrial habitats to exist. Factors that influence habitat selection are varied in species; amphibians ...
Ecological Differentiation in a Hybridizing Cryptic Species Complex By Patrick William Turko
... There is observational evidence that separation may be enforced by adaptation to different predation regimes: D. mendotae, with its greater anti-predator morphological plasticity, may out-compete D. dentifera under intense invertebrate predation, while the smaller D. dentifera may be better adapted ...
... There is observational evidence that separation may be enforced by adaptation to different predation regimes: D. mendotae, with its greater anti-predator morphological plasticity, may out-compete D. dentifera under intense invertebrate predation, while the smaller D. dentifera may be better adapted ...
The Vertebrate Fauna of Northern Yengo National Park
... Northern Yengo National Park comprises 46 000 hectares of a prominent dissected sandstone plateau on the southern escarpment of the Hunter Valley. It lies at the convergence of a number of environmental and climatic influences from the north, west and east and as a result the reserve supports a high ...
... Northern Yengo National Park comprises 46 000 hectares of a prominent dissected sandstone plateau on the southern escarpment of the Hunter Valley. It lies at the convergence of a number of environmental and climatic influences from the north, west and east and as a result the reserve supports a high ...
The Vertebrate Fauna of Northern Yengo National Park
... Northern Yengo National Park comprises 46 000 hectares of a prominent dissected sandstone plateau on the southern escarpment of the Hunter Valley. It lies at the convergence of a number of environmental and climatic influences from the north, west and east and as a result the reserve supports a high ...
... Northern Yengo National Park comprises 46 000 hectares of a prominent dissected sandstone plateau on the southern escarpment of the Hunter Valley. It lies at the convergence of a number of environmental and climatic influences from the north, west and east and as a result the reserve supports a high ...
Wetland paradise lost: Miocene community dynamics in large
... side arm of the Tethys, from the late Early Miocene (early Karpatian) to the early Late Miocene (early Pannonian) (Lemcke, 1988). This corresponds to the interval from approximately 17.25 to 10.0 Ma (MN4 to MN9) (Steininger, 1999). Low sea level allowed the development of a wetland with areas of mar ...
... side arm of the Tethys, from the late Early Miocene (early Karpatian) to the early Late Miocene (early Pannonian) (Lemcke, 1988). This corresponds to the interval from approximately 17.25 to 10.0 Ma (MN4 to MN9) (Steininger, 1999). Low sea level allowed the development of a wetland with areas of mar ...
ECOHAB Preface The Ecology and Oceanography of Harmful Algal Blooms
... immigration, and accumulation. Determine whether there is a specific suite of physical factors with which known HABs are associated. · Investigate physical and ecological processes that control the partitioning of nutrients within a system and the relationship between nutrient inputs and population ...
... immigration, and accumulation. Determine whether there is a specific suite of physical factors with which known HABs are associated. · Investigate physical and ecological processes that control the partitioning of nutrients within a system and the relationship between nutrient inputs and population ...
Long-term Effects of Shifts in Grazing Pressure on
... plant-responses to herbivory is an increase of lateral shoots. This happens when grazers eat the top-shoot of the plants and remove the apical meristem, which reduces the apical dominance (Haukioja & Koricheva, 2000). Basal meristems, which are less exposed to herbivory, is thus a beneficial toleran ...
... plant-responses to herbivory is an increase of lateral shoots. This happens when grazers eat the top-shoot of the plants and remove the apical meristem, which reduces the apical dominance (Haukioja & Koricheva, 2000). Basal meristems, which are less exposed to herbivory, is thus a beneficial toleran ...
What causes outbreaks of the gypsy moth in North America?
... evidence for density dependence was weak. Elkinton et al. (1989) studied low-density populations and found no evidence for positive density dependence. They suggested that, even though small mammals cause high levels of mortality in low-density gypsy moth populations, they are not responsible for re ...
... evidence for density dependence was weak. Elkinton et al. (1989) studied low-density populations and found no evidence for positive density dependence. They suggested that, even though small mammals cause high levels of mortality in low-density gypsy moth populations, they are not responsible for re ...
What causes outbreaks of the gypsy moth in North America?
... evidence for density dependence was weak. Elkinton et al. (1989) studied low-density populations and found no evidence for positive density dependence. They suggested that, even though small mammals cause high levels of mortality in low-density gypsy moth populations, they are not responsible for re ...
... evidence for density dependence was weak. Elkinton et al. (1989) studied low-density populations and found no evidence for positive density dependence. They suggested that, even though small mammals cause high levels of mortality in low-density gypsy moth populations, they are not responsible for re ...
Hixon, M. A., P. W. Pacala, and S. A. Sandin. 2002. Population
... also absent. However, predation in the broadest sense can also cause density dependence. By the 1950s, the idea that demographic density dependence was essential (but not sufficient) for population regulation was well established, and since then, challenges to the general concept have been short liv ...
... also absent. However, predation in the broadest sense can also cause density dependence. By the 1950s, the idea that demographic density dependence was essential (but not sufficient) for population regulation was well established, and since then, challenges to the general concept have been short liv ...
Investigating a Competitive Two Species System that Produces
... Competition and facilitation are the main interactions between the four groups. Some claim facilitation to be more dominant in arid environments (Bertness & Callaway, 1994) (Callaway et al. 2002) because the tolerance against limiting environmental condition is more dominant than competition amongst ...
... Competition and facilitation are the main interactions between the four groups. Some claim facilitation to be more dominant in arid environments (Bertness & Callaway, 1994) (Callaway et al. 2002) because the tolerance against limiting environmental condition is more dominant than competition amongst ...
Deep-Sea Hydrothermal Vent Communities C
... by the physical and chemical environment, which sets limits on species’ distributions and abundances. Invertebrate species interactions determine community composition within these limits through processes that parallel those observed in coastal habitats, but sometimes in ways that challenge establi ...
... by the physical and chemical environment, which sets limits on species’ distributions and abundances. Invertebrate species interactions determine community composition within these limits through processes that parallel those observed in coastal habitats, but sometimes in ways that challenge establi ...
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... is positively correlated with body size across species, but not within a single species. Evolutionary analyses indicate that leg membranes may not have evolved for purposes of aerial respiration, but their presence may have allowed intertidal and subtidal species to ...
... is positively correlated with body size across species, but not within a single species. Evolutionary analyses indicate that leg membranes may not have evolved for purposes of aerial respiration, but their presence may have allowed intertidal and subtidal species to ...
Standard PDF - Wiley Online Library
... probability of carcass removal by vertebrates was higher for large than for small rodent carcasses. These authors suggested that this is because larger carcasses are more conspicuous (i.e. easier to find) and comparatively less exploited by decomposers due to a lower surface:volume ratio. These patt ...
... probability of carcass removal by vertebrates was higher for large than for small rodent carcasses. These authors suggested that this is because larger carcasses are more conspicuous (i.e. easier to find) and comparatively less exploited by decomposers due to a lower surface:volume ratio. These patt ...
Interactions and patterns between species diversity and genetic
... In an evolutionary and population genetic context selection shapes the population-specific frequencies of alleles that influence phenotypic traits related to the fitness of individuals (Hartl and Clark 1997, Bell 2008). Although the term selection is not usually used in community ecology, the same b ...
... In an evolutionary and population genetic context selection shapes the population-specific frequencies of alleles that influence phenotypic traits related to the fitness of individuals (Hartl and Clark 1997, Bell 2008). Although the term selection is not usually used in community ecology, the same b ...
Insect responses to invasive plant species
... The results show that the plant species richness decreases in Solidago canadensis monocultures compared to the reference areas. The species diversity of butterflies is decreasing when there is Solidago canadensis in comparison with reference plots over the whole year. The hoverflies show an increase ...
... The results show that the plant species richness decreases in Solidago canadensis monocultures compared to the reference areas. The species diversity of butterflies is decreasing when there is Solidago canadensis in comparison with reference plots over the whole year. The hoverflies show an increase ...
The Cascading Effects of Invasive Grasses in North American Deserts
... impacted by fire and how their influence on the plant community differs between burned and unburned habitat. Small mammals did not have higher rates of mortality as a direct result of a controlled burn. In the Great Basin, there were short-term reductions in abundance, richness, and diversity of the ...
... impacted by fire and how their influence on the plant community differs between burned and unburned habitat. Small mammals did not have higher rates of mortality as a direct result of a controlled burn. In the Great Basin, there were short-term reductions in abundance, richness, and diversity of the ...
PDF - South Coast Wildlands
... habitats and movement needs in the region, so that planning adequate linkages for them is expected to cover connectivity needs for the ecosystems they represent. To identify potential routes between existing protected areas we conducted landscape permeability analyses for 3 focal species for which a ...
... habitats and movement needs in the region, so that planning adequate linkages for them is expected to cover connectivity needs for the ecosystems they represent. To identify potential routes between existing protected areas we conducted landscape permeability analyses for 3 focal species for which a ...
Sponge Community Structure and Anti
... one of the major taxa, in terms of both biomass and species diversity, found in hardbottom communities (Sara and Vacelet 1973). Despite the abundance of sponges at all latitudes, the bulk of our understanding of how predation regulates their distribution comes from studies conducted in the tropics. ...
... one of the major taxa, in terms of both biomass and species diversity, found in hardbottom communities (Sara and Vacelet 1973). Despite the abundance of sponges at all latitudes, the bulk of our understanding of how predation regulates their distribution comes from studies conducted in the tropics. ...
Habitat–performance relationships: finding the right metric at a given
... have recently emerged, all together forming a general framework: the general niche-environment system factor analysis (GNESFA; Calenge & Basille 2008). All these multivariate analysis methods provide useful and reliable description of the multivariate niche, and are most often used to map the habita ...
... have recently emerged, all together forming a general framework: the general niche-environment system factor analysis (GNESFA; Calenge & Basille 2008). All these multivariate analysis methods provide useful and reliable description of the multivariate niche, and are most often used to map the habita ...
Do we have a consistent terminology for species diversity?
... [which can be expressed as logð1 DÞ] and square of coefficient of variation is that both arise naturally as weighted means of observed-divided-by-expected values of a vector, matrix, or higher-dimensional array (Reardon and Firebaugh 2002; Gorelick and Bertram 2010), thereby removing arbitrariness f ...
... [which can be expressed as logð1 DÞ] and square of coefficient of variation is that both arise naturally as weighted means of observed-divided-by-expected values of a vector, matrix, or higher-dimensional array (Reardon and Firebaugh 2002; Gorelick and Bertram 2010), thereby removing arbitrariness f ...
RESEARCH REPORT DNR Fish as Indicators of Lake Habitat Quality
... as indicators of fish community health and discusses the types of perturbations occurring in lakes. Species actually present in a particular lake result from regional, local accessibility, chemical, macrohabitat, and microhabitat filters. Also reviewed are distribution and relative abundance pattern ...
... as indicators of fish community health and discusses the types of perturbations occurring in lakes. Species actually present in a particular lake result from regional, local accessibility, chemical, macrohabitat, and microhabitat filters. Also reviewed are distribution and relative abundance pattern ...
journal.pone.0170
... (Salvelinus alpinus) and European whitefish (Coregonus lavaretus). The two species have similar fundamental trophic niches in terms of habitat and diet use, but with whitefish considered as the superior competitive species [7–9]. Compared to Arctic charr, whitefish are especially considered to be a ...
... (Salvelinus alpinus) and European whitefish (Coregonus lavaretus). The two species have similar fundamental trophic niches in terms of habitat and diet use, but with whitefish considered as the superior competitive species [7–9]. Compared to Arctic charr, whitefish are especially considered to be a ...
evaluation of the factors that limit Olympia oyster
... minimal tidal exchange (very little, often irregular tidal exchange through water control structures, with maximum tidal range from 1–15 cm). For all 24 of the sites, I calculated the average of each water quality parameter for five recent five years (2002–2006). Although not all of these parameter ...
... minimal tidal exchange (very little, often irregular tidal exchange through water control structures, with maximum tidal range from 1–15 cm). For all 24 of the sites, I calculated the average of each water quality parameter for five recent five years (2002–2006). Although not all of these parameter ...