pest risk assessment - Department of Primary Industries, Parks
... Perenties are protected in all jurisdictions where they are present in Australia. Varanus giganteus is not listed on the IUCN Red List of Threatened Species. The species is a ‘controlled animal’ under the Tasmanian Nature Conservation Act 2002. The Perentie is not considered a pest species. It has n ...
... Perenties are protected in all jurisdictions where they are present in Australia. Varanus giganteus is not listed on the IUCN Red List of Threatened Species. The species is a ‘controlled animal’ under the Tasmanian Nature Conservation Act 2002. The Perentie is not considered a pest species. It has n ...
Mitchell`s rainforest snail - Office of Environment and Heritage
... The conservation of threatened species, populations and ecological communities is crucial for the maintenance of this State’s unique biodiversity. In NSW, the Threatened Species Conservation Act 1995 (TSC Act) provides the framework to conserve and recover threatened species, populations and ecologi ...
... The conservation of threatened species, populations and ecological communities is crucial for the maintenance of this State’s unique biodiversity. In NSW, the Threatened Species Conservation Act 1995 (TSC Act) provides the framework to conserve and recover threatened species, populations and ecologi ...
Biodiversity and ecosystem productivity in a fluctuating environment
... For the present analysis, we assumed that all species have the same response range, 0 # X i(t) # 1 (Appendix). This assumption, however, can be easily relaxed, which leads to slightly different predictions (unpublished results). For instance, in the case of determination by dominance, if there are t ...
... For the present analysis, we assumed that all species have the same response range, 0 # X i(t) # 1 (Appendix). This assumption, however, can be easily relaxed, which leads to slightly different predictions (unpublished results). For instance, in the case of determination by dominance, if there are t ...
P M E S
... West Coast have declined to dangerously low levels.8 There is no single factor responsible for this decline, and it is even difficult to quantify the relative contributions of different factors. Salmon population declines are the result of numerous forces, such as habitat loss due to development, re ...
... West Coast have declined to dangerously low levels.8 There is no single factor responsible for this decline, and it is even difficult to quantify the relative contributions of different factors. Salmon population declines are the result of numerous forces, such as habitat loss due to development, re ...
Frogs are Cool. - Oregon Department of Fish and Wildlife
... many are on the road to extinction. Habitat loss, pollution, pesticides, climate change, infectious diseases, the pet trade and invasive animal species are all causing problems for frogs. ...
... many are on the road to extinction. Habitat loss, pollution, pesticides, climate change, infectious diseases, the pet trade and invasive animal species are all causing problems for frogs. ...
Appendix B — Hydrologic indicator sites - Murray
... Waterbirds have a variety of requirements in terms of habitat and flow regime. In terms of these requirements they are often categorised as waterfowl (e.g. ducks) and colonial nesting waterbirds (e.g. ibis). Both categories of waterbird require healthy and productive habitats for food and nesting. I ...
... Waterbirds have a variety of requirements in terms of habitat and flow regime. In terms of these requirements they are often categorised as waterfowl (e.g. ducks) and colonial nesting waterbirds (e.g. ibis). Both categories of waterbird require healthy and productive habitats for food and nesting. I ...
MPA Monitoring Metrics: Kelp and Shallow Rock Ecosystems (0
... Monitoring metrics for the Kelp and Shallow Rock Ecosystem (0-30M) Feature in the South Coast region are provided on the next page. A summary list of the monitoring metrics is provided, including the metrics for the Ecosystem Feature Checkup (orange) and Assessment (green) options. Additional inform ...
... Monitoring metrics for the Kelp and Shallow Rock Ecosystem (0-30M) Feature in the South Coast region are provided on the next page. A summary list of the monitoring metrics is provided, including the metrics for the Ecosystem Feature Checkup (orange) and Assessment (green) options. Additional inform ...
Accepted Courses - River Management Society
... Prescott SNC POLS 488 – Environmental ENV40000 - River Ecology & ENVS 2XX Natural Resources Politics and Policy (3 cr) Conservation (4 cr) Management (3 cr) ENV21550/ENV41550 – Water in the West (4 cr) ...
... Prescott SNC POLS 488 – Environmental ENV40000 - River Ecology & ENVS 2XX Natural Resources Politics and Policy (3 cr) Conservation (4 cr) Management (3 cr) ENV21550/ENV41550 – Water in the West (4 cr) ...
Species loss and secondary extinctions in simple and complex
... mostly weak and only a few strong interaction links. We therefore assume each consumer to have a strong effect on one of its prey species (assigned randomly) and weak effects on the others. If a consumer j has only one prey species i, that link is assumed to be strong and is given the value αij = − ...
... mostly weak and only a few strong interaction links. We therefore assume each consumer to have a strong effect on one of its prey species (assigned randomly) and weak effects on the others. If a consumer j has only one prey species i, that link is assumed to be strong and is given the value αij = − ...
building a regional species pool: diversification of the
... 1998). When speciation is driven by such adaptive processes, the per lineage speciation rate should decrease with increasing species richness, and these new species should deterministically persist in at least the community type in which they arose. Moreover, new species enter the regional species p ...
... 1998). When speciation is driven by such adaptive processes, the per lineage speciation rate should decrease with increasing species richness, and these new species should deterministically persist in at least the community type in which they arose. Moreover, new species enter the regional species p ...
When an `invasive` fish species fails to invade! Example of the
... the lack of subsequent appearances by the species in this pond (Annex). Firstly, it is not clear whether the species actually succeeded in reproducing in the pond, nor is it known exactly when the fish were introduced (i.e. only just prior to their capture, and therefore not permitted the opportunit ...
... the lack of subsequent appearances by the species in this pond (Annex). Firstly, it is not clear whether the species actually succeeded in reproducing in the pond, nor is it known exactly when the fish were introduced (i.e. only just prior to their capture, and therefore not permitted the opportunit ...
The Role of Benthic Invertebrate Species in Freshwater Ecosystems
... of habitats and biological relationships is an important aspect of biodiversity. Bioturbation and other biotic interactions create extensive biocomplexity in freshwater sediments (Charbonneau and Hare 1998). These biocomplexities must be better understood if clean drinking water and recreational use ...
... of habitats and biological relationships is an important aspect of biodiversity. Bioturbation and other biotic interactions create extensive biocomplexity in freshwater sediments (Charbonneau and Hare 1998). These biocomplexities must be better understood if clean drinking water and recreational use ...
The spatial and temporal components of functional connectivity in
... Abstract Connectivity is key for understanding how ecological systems respond to the challenges of land-use change and habitat fragmentation. Structural and functional connectivity are both established concepts in ecology, but the temporal component of connectivity deserves more attention. Whereas f ...
... Abstract Connectivity is key for understanding how ecological systems respond to the challenges of land-use change and habitat fragmentation. Structural and functional connectivity are both established concepts in ecology, but the temporal component of connectivity deserves more attention. Whereas f ...
The Mesolithic mammal fauna of Great Britain
... 1988), the mammal fauna must have been very different from what it is now; not only were several now-extinct large mammals present, and none of the now-abundant introduced species, but the community relations (large carnivores suppressing small ones, woodland species much more abundant than grasslan ...
... 1988), the mammal fauna must have been very different from what it is now; not only were several now-extinct large mammals present, and none of the now-abundant introduced species, but the community relations (large carnivores suppressing small ones, woodland species much more abundant than grasslan ...
20Molles5e
... Introduction Community Changes During Succession Primary Succession Secondary Succession Ecosystem Changes During Succession ...
... Introduction Community Changes During Succession Primary Succession Secondary Succession Ecosystem Changes During Succession ...
Plant succession: theory and applications
... is abandoned by humans) is more usual. Indeed much of our farming, forestry, land reclamation schemes and even nature conservation relies on preventing or in some way directing this natural process of change. A good understanding of the pinciples driving this natural succession, and their efficient ...
... is abandoned by humans) is more usual. Indeed much of our farming, forestry, land reclamation schemes and even nature conservation relies on preventing or in some way directing this natural process of change. A good understanding of the pinciples driving this natural succession, and their efficient ...
1 Chapter 6 Multiple Choice Questions Name: 1 1) 1 Zebra mussels
... A) zebra mussels prey on zooplankton B) zebra mussels carry a parasite that kills zooplankton C) zebra mussels feed on cyanobacteria, which zooplankton need as a food source D) zebra mussels block sunlight penetration into lakes and thus prevent zooplankton from photosynthesizing E) waste from zebra ...
... A) zebra mussels prey on zooplankton B) zebra mussels carry a parasite that kills zooplankton C) zebra mussels feed on cyanobacteria, which zooplankton need as a food source D) zebra mussels block sunlight penetration into lakes and thus prevent zooplankton from photosynthesizing E) waste from zebra ...
Unit 7: Ecology
... However, when the two species were cultured together, P. caudatum proved to be the weaker competitor. After a brief phase of exponential growth, its population began to decline and ultimately it became extinct. The population of P. aurelia reached a plateau, but so long as P. caudatum remained, this ...
... However, when the two species were cultured together, P. caudatum proved to be the weaker competitor. After a brief phase of exponential growth, its population began to decline and ultimately it became extinct. The population of P. aurelia reached a plateau, but so long as P. caudatum remained, this ...
Full-Text PDF
... mechanics in different problems of ecology like demographic stochasticity in predator-prey systems [4,5], evolutionary ecology [6,7], population genetics [8], community assembly and species distributions [9–15] and complex ecological aggregates and networks [16–20]. Organisms in nature are discrete ...
... mechanics in different problems of ecology like demographic stochasticity in predator-prey systems [4,5], evolutionary ecology [6,7], population genetics [8], community assembly and species distributions [9–15] and complex ecological aggregates and networks [16–20]. Organisms in nature are discrete ...
Galapagos vertebrates: endangered status and conservation actions
... habitat loss and/or fragmentation; arrival of introduced species that are predators or disease vectors, or that compete for habitat or food; ...
... habitat loss and/or fragmentation; arrival of introduced species that are predators or disease vectors, or that compete for habitat or food; ...
Red swamp crayfish Scientific name: Procambarus clarkii
... Acquistapace 2007). Consumption of invertebrates and destruction of hydrophytes can impact other trophic levels in the food web, such as competion with native fish that feed on invertebrates (Lodge et al. 2000). ...
... Acquistapace 2007). Consumption of invertebrates and destruction of hydrophytes can impact other trophic levels in the food web, such as competion with native fish that feed on invertebrates (Lodge et al. 2000). ...
Definitions of biodiversity on the Web: • also biological diversity
... • the study of genes and their function. Recent advances in genomics are bringing about a revolution in our understanding of the molecular mechanisms of disease, including the complex interplay of genetic and environmental factors. Genomics is also stimulating the discovery of breakthrough healthcar ...
... • the study of genes and their function. Recent advances in genomics are bringing about a revolution in our understanding of the molecular mechanisms of disease, including the complex interplay of genetic and environmental factors. Genomics is also stimulating the discovery of breakthrough healthcar ...
Bird Conservation International, page 1 of 9 . © BirdLife International
... Clarity over the habitat conditions preferred by the Grenada Dove is needed for immediate management purposes. Mongoose abundance, once measured at 10.4 individuals per hectare at Mt Hartman (Nellis and Everard 1983, Nellis 1989), is one of the highest recorded densities in its introduced range glob ...
... Clarity over the habitat conditions preferred by the Grenada Dove is needed for immediate management purposes. Mongoose abundance, once measured at 10.4 individuals per hectare at Mt Hartman (Nellis and Everard 1983, Nellis 1989), is one of the highest recorded densities in its introduced range glob ...
The tales of two geckos: does dispersal prevent extinction in recently
... Introduction Habitat loss and fragmentation threaten species throughout the world and are a major threat to biodiversity (Groombridge 1992; WCMC 1992). When formerly contiguous vegetation becomes fragmented through land clearing, small isolated populations will result for many species. Emerging empi ...
... Introduction Habitat loss and fragmentation threaten species throughout the world and are a major threat to biodiversity (Groombridge 1992; WCMC 1992). When formerly contiguous vegetation becomes fragmented through land clearing, small isolated populations will result for many species. Emerging empi ...
PART
... f. Some mutualistic relationships become obligate; neither can survive without the other. g. Competition between two species reduces the fitness of both; asymmetric competition affects one species less than the other species. B. Competition and Character Displacement (Figures 13.8, 13.9) 1. Competit ...
... f. Some mutualistic relationships become obligate; neither can survive without the other. g. Competition between two species reduces the fitness of both; asymmetric competition affects one species less than the other species. B. Competition and Character Displacement (Figures 13.8, 13.9) 1. Competit ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.