![Understanding ecosystem dynamics for conservation of](http://s1.studyres.com/store/data/005317861_1-3fb7aa52eec3e21b5eefc924966bd7af-300x300.png)
Understanding ecosystem dynamics for conservation of
... If indigenous predators can threaten rare species, then one should expect the effects of exotic predators to be even more marked. This is clearly demonstrated where exotic predators such as red fox Vulpes vulpes in Australia, stoats Mustela erminea in New Zealand and a plethora of other species on i ...
... If indigenous predators can threaten rare species, then one should expect the effects of exotic predators to be even more marked. This is clearly demonstrated where exotic predators such as red fox Vulpes vulpes in Australia, stoats Mustela erminea in New Zealand and a plethora of other species on i ...
Effects of environmental change on zoonotic disease risk: an
... BAM diagram: a Venn diagram in which the interactions among the Biotic niche, the Abiotic niche, and the Mobility are expressed. This diagram has profound implications for distributional ecology, but it summarises the zones where populations of an organism can have positive turnover, where the relat ...
... BAM diagram: a Venn diagram in which the interactions among the Biotic niche, the Abiotic niche, and the Mobility are expressed. This diagram has profound implications for distributional ecology, but it summarises the zones where populations of an organism can have positive turnover, where the relat ...
Parasites that change predator or prey behaviour can have keystone
... indirect interactions impart keystone effects, promoting or inhibiting host coexistence. Parasites can thus have strong ecological impacts, even if they have negligible virulence, underscoring the need to consider trait-mediated effects when predicting effects of parasites on community structure in ...
... indirect interactions impart keystone effects, promoting or inhibiting host coexistence. Parasites can thus have strong ecological impacts, even if they have negligible virulence, underscoring the need to consider trait-mediated effects when predicting effects of parasites on community structure in ...
Urbanization as a major cause of biotic homogenization
... intensify with time so that there is no opportunity for successional recovery. Furthermore, cities are expanding worldwide in almost every locality. The worldÕs population is projected to increase by more than one-third over the next 30 years, adding 2 billion people with almost all expected growth ...
... intensify with time so that there is no opportunity for successional recovery. Furthermore, cities are expanding worldwide in almost every locality. The worldÕs population is projected to increase by more than one-third over the next 30 years, adding 2 billion people with almost all expected growth ...
INQUIRY INTO THE CONTROL OF INVASIVE ANIMALS ON
... As Field & Game Australia (FGA) is not directly involved with the trial of deer population control in National Parks, we will not discuss the outcomes of this trial. Our colleagues at the Australian Deer Association (ADA) have made a submission regarding the Parks Victoria trial of deer control. FGA ...
... As Field & Game Australia (FGA) is not directly involved with the trial of deer population control in National Parks, we will not discuss the outcomes of this trial. Our colleagues at the Australian Deer Association (ADA) have made a submission regarding the Parks Victoria trial of deer control. FGA ...
ORN_chap3
... • invading/introduced species more successful in areas with impoverished avifaunas (e.g. New Zealand) or man-made habitats (e.g. cultivated land) • colonists may be more susceptible to predators or parasites than locally-adapted species • widely distributed species from continental areas with divers ...
... • invading/introduced species more successful in areas with impoverished avifaunas (e.g. New Zealand) or man-made habitats (e.g. cultivated land) • colonists may be more susceptible to predators or parasites than locally-adapted species • widely distributed species from continental areas with divers ...
2013rat
... resource competition are two of the many ecological factors that influence a species’ niche (Elton 1927; Hutchinson 1957). Theory predicts that animals with similar life-history traits and close phylogenetic associations, such as different species of rodents in the same habitat, are able to coexist ...
... resource competition are two of the many ecological factors that influence a species’ niche (Elton 1927; Hutchinson 1957). Theory predicts that animals with similar life-history traits and close phylogenetic associations, such as different species of rodents in the same habitat, are able to coexist ...
prescribed burn program - Royal Botanical Gardens
... http://nhic.mnr.gov.on.ca/nhic_.cfm • Carolinian Canada, http://www.carolinian.org ...
... http://nhic.mnr.gov.on.ca/nhic_.cfm • Carolinian Canada, http://www.carolinian.org ...
Eudyptes robustus, Snares Penguin
... are no introduced predators on the Snares Islands and consequently the possibility of the accidental introduction of mammals is a continual concern (B. D. Bell verbally 1993). The Snares Islands are the site of a large squid fishery, which may be in competition with the species (Ellis et al. 1998). ...
... are no introduced predators on the Snares Islands and consequently the possibility of the accidental introduction of mammals is a continual concern (B. D. Bell verbally 1993). The Snares Islands are the site of a large squid fishery, which may be in competition with the species (Ellis et al. 1998). ...
Restoration of degraded hill land in South China
... The vegetation succession and ecological restoration represent processes in community assembly that involves a series of filters and thresholds sifting species out of the regional pool (Temperton et al., 2004; Whisenant, 1999; Díaz et al.1998). It has been recognized that the importance and action o ...
... The vegetation succession and ecological restoration represent processes in community assembly that involves a series of filters and thresholds sifting species out of the regional pool (Temperton et al., 2004; Whisenant, 1999; Díaz et al.1998). It has been recognized that the importance and action o ...
Metacommunity analysis of Mexican bats - MyWeb
... communities within regions (Leibold & Mikkelson, 2002; Leibold & Miller, 2004; Leibold et al., 2004; Holyoak et al., 2005). Currently, we are experiencing a change in focus from local community-oriented research to a regional large-scale perspective in which the foci of study are populations that ar ...
... communities within regions (Leibold & Mikkelson, 2002; Leibold & Miller, 2004; Leibold et al., 2004; Holyoak et al., 2005). Currently, we are experiencing a change in focus from local community-oriented research to a regional large-scale perspective in which the foci of study are populations that ar ...
2014 Report
... better assess populations and understand what is needed to enhance the lakes to make them more environmentally appropriate. Along with the survey, platforms built by the Troop 10 Boy Scouts will provide basking areas for the turtles and will help the overall project of enhancing the lakes into wetla ...
... better assess populations and understand what is needed to enhance the lakes to make them more environmentally appropriate. Along with the survey, platforms built by the Troop 10 Boy Scouts will provide basking areas for the turtles and will help the overall project of enhancing the lakes into wetla ...
Plant coexistence and the niche
... of soil nutrients occurs, possibly through the mediation of microbial symbionts, some of which are more species specific than was previously thought. Although it is unlikely that niche separation along environmental axes is the only mechanism of coexistence in any large community, the evidence now s ...
... of soil nutrients occurs, possibly through the mediation of microbial symbionts, some of which are more species specific than was previously thought. Although it is unlikely that niche separation along environmental axes is the only mechanism of coexistence in any large community, the evidence now s ...
Ecological and evolutionary implications of food subsidies
... and regulations that have progressively been applied there limit the accessibility of these resources to scavenging organisms, whereas in developing countries, where high human densities are often coupled with less strict environmental policies, dumps are large and numerous. On the other hand, inten ...
... and regulations that have progressively been applied there limit the accessibility of these resources to scavenging organisms, whereas in developing countries, where high human densities are often coupled with less strict environmental policies, dumps are large and numerous. On the other hand, inten ...
Ecological and evolutionary implications of food subsidies from
... and regulations that have progressively been applied there limit the accessibility of these resources to scavenging organisms, whereas in developing countries, where high human densities are often coupled with less strict environmental policies, dumps are large and numerous. On the other hand, inten ...
... and regulations that have progressively been applied there limit the accessibility of these resources to scavenging organisms, whereas in developing countries, where high human densities are often coupled with less strict environmental policies, dumps are large and numerous. On the other hand, inten ...
International Conservation Policy Delivers Benefits for Birds in Europe.
... particularly vulnerable or rare, or requiring special conservation measures (12). Member States are bound by the Directive to improve the conservation status of these species by protecting or enhancing their habitats, for example through the designation of Special Protection Areas (SPAs) (12). Furth ...
... particularly vulnerable or rare, or requiring special conservation measures (12). Member States are bound by the Directive to improve the conservation status of these species by protecting or enhancing their habitats, for example through the designation of Special Protection Areas (SPAs) (12). Furth ...
Causes and Consequences of Spatial Heterogeneity
... Ecolog(ists) use(s) the concept of a landscape in two ways. The first, which considers a landscape as a specific area based on human scales, is intuitive: Landscapes are ecological systems that exist at the scale of kilometers and comprise recognizable elements such as forest patches, fields, and he ...
... Ecolog(ists) use(s) the concept of a landscape in two ways. The first, which considers a landscape as a specific area based on human scales, is intuitive: Landscapes are ecological systems that exist at the scale of kilometers and comprise recognizable elements such as forest patches, fields, and he ...
slides - UBC Botany
... species in USA •Colonizes riparian habitats, displacing native vegetation and consume precious water resources •Most common invasive in USA is a hybrid of two species that do not grow in the same areas of Asia ...
... species in USA •Colonizes riparian habitats, displacing native vegetation and consume precious water resources •Most common invasive in USA is a hybrid of two species that do not grow in the same areas of Asia ...
Species-species association strengths
... factors we need to understand is how diversity is maintained through resource partitioning. [[nice “so what”]] Kelp forests are one of the most highly diverse and productive ecosystems in the world. They can be found in cold, eutrophic waters associated with western boundary currents (Coleman 2011) ...
... factors we need to understand is how diversity is maintained through resource partitioning. [[nice “so what”]] Kelp forests are one of the most highly diverse and productive ecosystems in the world. They can be found in cold, eutrophic waters associated with western boundary currents (Coleman 2011) ...
An Ecological Assessment of
... and perhaps chemical control techniques applied at critical periods throughout the year would be needed to successfully reduce or eliminate RCG infestation. Previous suggestions that mowing and grazing might serve to increase biodiversity of the existing RCG stands is not supported by a comparison o ...
... and perhaps chemical control techniques applied at critical periods throughout the year would be needed to successfully reduce or eliminate RCG infestation. Previous suggestions that mowing and grazing might serve to increase biodiversity of the existing RCG stands is not supported by a comparison o ...
Response of a semidesert grassland to 16 years of rest from grazing
... by 5 grid with approximately 400 m between stands. Each stand was 10 m on a side and was sampled using 10 randomly located quadrats (40 cm on each side). Canopy cover of each species was estimated in quadrats to the nearest 5%. These permanent stands were relocated and resampled in 1984 to determine ...
... by 5 grid with approximately 400 m between stands. Each stand was 10 m on a side and was sampled using 10 randomly located quadrats (40 cm on each side). Canopy cover of each species was estimated in quadrats to the nearest 5%. These permanent stands were relocated and resampled in 1984 to determine ...
Download Frugivory by introduced black rats (Rattus rattus) promotes dispersal of invasive plant seeds
... Invasive species, defined here as species that are non-native and cause ecological or economic impact (Lockwood et al. 2007), are transforming landscapes worldwide through their effects on biogeochemical cycles and native species distributions (Vitousek and Walker 1989; Rizzo and Garbelotto 2003; Lo ...
... Invasive species, defined here as species that are non-native and cause ecological or economic impact (Lockwood et al. 2007), are transforming landscapes worldwide through their effects on biogeochemical cycles and native species distributions (Vitousek and Walker 1989; Rizzo and Garbelotto 2003; Lo ...
Decision-making protocols for propagation and introduction of native
... basis, the difference between these types of situations can make a substantial difference in how one evaluates the selection of a suitable propagule source. For all projects, however, one can tease out two key issues that should be considered in selecting a source of plant propagules: (a) the likel ...
... basis, the difference between these types of situations can make a substantial difference in how one evaluates the selection of a suitable propagule source. For all projects, however, one can tease out two key issues that should be considered in selecting a source of plant propagules: (a) the likel ...
The Extinction Crisis
... 75% threatened by more than one factor 27 species face four or more threats Major threat – 76% of the species are ...
... 75% threatened by more than one factor 27 species face four or more threats Major threat – 76% of the species are ...
Species Invasions and the Relationships between Species Diversity
... or diversity of species in a community and the extent to which that community maintains its functioning. Indeed, experimental tests of relationships between diversity and ecosystem processes such as productivity, stability, and invasibility have increased rapidly in the last 10 years (e.g., see chap ...
... or diversity of species in a community and the extent to which that community maintains its functioning. Indeed, experimental tests of relationships between diversity and ecosystem processes such as productivity, stability, and invasibility have increased rapidly in the last 10 years (e.g., see chap ...
Introduced species
![](https://commons.wikimedia.org/wiki/Special:FilePath/Melilotus_alba_bgiu.jpg?width=300)
An introduced, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are called invasive species. Some have a negative effect on a local ecosystem. Some introduced species may have no negative effect or only minor impact. Some species have been introduced intentionally to combat pests. They are called biocontrols and may be regarded as beneficial as an alternative to pesticides in agriculture for example. In some instances the potential for being beneficial or detrimental in the long run remains unknown. A list of some introduced species is given in a separate article.The effects of introduced species on natural environments have gained much scrutiny from scientists, governments, farmers and others.