Full application - appendix pest control ()
... animals can be killed by 1080 operations that target possums. This can provide further benefits for native species. In this respect New Zealand is uniquely different from other countries where native mammals are usually valued and are well adapted to particular ecosystems. This is a major reason why ...
... animals can be killed by 1080 operations that target possums. This can provide further benefits for native species. In this respect New Zealand is uniquely different from other countries where native mammals are usually valued and are well adapted to particular ecosystems. This is a major reason why ...
this PDF file - Journal of Insect Biodiversity
... subterranean habits. Interestingly, although superficially resembling mole crickets (hence their common name, pygmy mole crickets), they are related to grasshoppers and not to crickets; in some old literature, they were considered as part of the Gryllidae. For example, Comstock (1888) places the gen ...
... subterranean habits. Interestingly, although superficially resembling mole crickets (hence their common name, pygmy mole crickets), they are related to grasshoppers and not to crickets; in some old literature, they were considered as part of the Gryllidae. For example, Comstock (1888) places the gen ...
FUNCTIONAL MATRIX: A Conceptual Framework for Predicting
... the assumption that there are suites of related plant traits that can generalize how species affect ecosystem processes or respond to environmental changes (Wilson 1999). For example, plants adapted to low-nutrient environments have high nutrient use efficiency, slow growth and photosynthetic rates, ...
... the assumption that there are suites of related plant traits that can generalize how species affect ecosystem processes or respond to environmental changes (Wilson 1999). For example, plants adapted to low-nutrient environments have high nutrient use efficiency, slow growth and photosynthetic rates, ...
Atlantic salmon Scientific name: Salmo salar
... juvenile salmon could prey on other juveniles of native species, such as chum and pink fry (ADF&G 2002). Concern is especially high in areas where native salmonid runs are below historic levels and could face even larger declines from competition with Atlantic salmon (ADF&G 2002). Also, the n ...
... juvenile salmon could prey on other juveniles of native species, such as chum and pink fry (ADF&G 2002). Concern is especially high in areas where native salmonid runs are below historic levels and could face even larger declines from competition with Atlantic salmon (ADF&G 2002). Also, the n ...
Ant Community Dynamics and the Effects of Global Warming
... In chapter 4, I examined the potential for climatic warming to alter seed dispersal in eastern deciduous forests. I examined both overall and species-specific rates of seed removal with the expectation that the above-observed changes in rates of ant foraging activity would result in altered numbers ...
... In chapter 4, I examined the potential for climatic warming to alter seed dispersal in eastern deciduous forests. I examined both overall and species-specific rates of seed removal with the expectation that the above-observed changes in rates of ant foraging activity would result in altered numbers ...
An experimental demonstration of direct behavioural
... by introduction experiments on several small islands, and concluded, based on the subsequent abundance of lizards, that competitive exclusion was occurring (Radovanovic 1965). Nevo et al. (1972) found distributional evidence to support this theory on some islands and to refute it on others. Thus, th ...
... by introduction experiments on several small islands, and concluded, based on the subsequent abundance of lizards, that competitive exclusion was occurring (Radovanovic 1965). Nevo et al. (1972) found distributional evidence to support this theory on some islands and to refute it on others. Thus, th ...
Integrating bacteria into food webs: Studies with Sarracenia
... knowledge about the species that make up microbial food webs. Most studies focus on aggregated webs in which these organisms are treated as functional groups or ‘‘trophic species,’’ e.g., heterotrophic bacteria, phagotrophic protozoa, and so on. In worst case scenarios, the entire microbiota is aggr ...
... knowledge about the species that make up microbial food webs. Most studies focus on aggregated webs in which these organisms are treated as functional groups or ‘‘trophic species,’’ e.g., heterotrophic bacteria, phagotrophic protozoa, and so on. In worst case scenarios, the entire microbiota is aggr ...
Bern Convention activities in the field of large carnivore conservation
... adapting LCIE methodologies to suit local conditions. Ongoing activities include working to ensure the Habitats Directive and other environmental legislation to be applied with regard to particular needs of the region, it is also involved in carnivore research and monitoring, human dimensions studie ...
... adapting LCIE methodologies to suit local conditions. Ongoing activities include working to ensure the Habitats Directive and other environmental legislation to be applied with regard to particular needs of the region, it is also involved in carnivore research and monitoring, human dimensions studie ...
A hierarchical view of habitat and its relationship to species
... Assumptions concerning species attributes relevant to the model interpretation apply only to habitats or regions whose species show one of the patterns described in the introduction. The assumptions are (1) that species differ in their ecological requirements and, thus, there will be some species wi ...
... Assumptions concerning species attributes relevant to the model interpretation apply only to habitats or regions whose species show one of the patterns described in the introduction. The assumptions are (1) that species differ in their ecological requirements and, thus, there will be some species wi ...
Heathlands confronting global change: drivers of biodiversity loss
... Britton and Fisher, 2007), while increasing CO2 concentrations and climate change have shown a high variability whenever measured across Europe, with several experimental studies performed during the last decade (e.g. Peñuelas et al., 2004; Albert et al., 2011a, b). As heathlands are not particular ...
... Britton and Fisher, 2007), while increasing CO2 concentrations and climate change have shown a high variability whenever measured across Europe, with several experimental studies performed during the last decade (e.g. Peñuelas et al., 2004; Albert et al., 2011a, b). As heathlands are not particular ...
booklet of abstracts
... phases of plant species such as budburst tend to occur earlier. In 2004, the CREA (Centre de Recherches sur les Ecosystèmes d’Altitude, Chamonix, France) initiated the citizen science program Phenoclim, which aims at assessing the long-term effects of climate changes on plant phenology over the enti ...
... phases of plant species such as budburst tend to occur earlier. In 2004, the CREA (Centre de Recherches sur les Ecosystèmes d’Altitude, Chamonix, France) initiated the citizen science program Phenoclim, which aims at assessing the long-term effects of climate changes on plant phenology over the enti ...
Biotic resistance and facilitation of a non
... pacts of introduced species. Invaders that vary spatially in abundance are particularly instructive for testing mechanisms of invasion resistance, because although such species are capable of dominating assemblages, they are not capable of doing so in all contexts. The Pacific oyster, Crassostrea gi ...
... pacts of introduced species. Invaders that vary spatially in abundance are particularly instructive for testing mechanisms of invasion resistance, because although such species are capable of dominating assemblages, they are not capable of doing so in all contexts. The Pacific oyster, Crassostrea gi ...
BIODIVERSITY-ECOSYSTEM FUNCTION RESEARCH
... biodiversity as the primary impetus for research (Naeem et al. 1999). Conservation management and measurement of ecosystem functions (e.g., carbon credits) also occur on relatively large scales, from watersheds to nations. Most empirical studies, on the other hand, have been conducted at relatively ...
... biodiversity as the primary impetus for research (Naeem et al. 1999). Conservation management and measurement of ecosystem functions (e.g., carbon credits) also occur on relatively large scales, from watersheds to nations. Most empirical studies, on the other hand, have been conducted at relatively ...
Strategic overview of influences of aquaculture on
... Much of Ireland’s aquaculture is less intensive than in other nations. The salmon growing sites on the west coast of Ireland also occur in comparatively high energy environments, such that impacts like seabed anoxia and nutrient enrichment, are not as big an issue in Ireland when compared with other ...
... Much of Ireland’s aquaculture is less intensive than in other nations. The salmon growing sites on the west coast of Ireland also occur in comparatively high energy environments, such that impacts like seabed anoxia and nutrient enrichment, are not as big an issue in Ireland when compared with other ...
References - Trace: Tennessee Research and Creative Exchange
... In chapter 4, I examined the potential for climatic warming to alter seed dispersal in eastern deciduous forests. I examined both overall and species-specific rates of seed removal with the expectation that the above-observed changes in rates of ant foraging activity would result in altered numbers ...
... In chapter 4, I examined the potential for climatic warming to alter seed dispersal in eastern deciduous forests. I examined both overall and species-specific rates of seed removal with the expectation that the above-observed changes in rates of ant foraging activity would result in altered numbers ...
Best Practice for the Management of Introduced Marine Pests
... than an in-depth analysis of the pros and cons of different approaches. ...
... than an in-depth analysis of the pros and cons of different approaches. ...
Biodiversity - Pinelands Preservation Alliance
... Barrens. They once thrived throughout Canada and most of the United States, and while they have been extirpated in most of their historic range by humans, they are being reintroduced successfully in many places. Feeding mainly on fish, Otters will also eat shellfish, frogs and small mammals and bird ...
... Barrens. They once thrived throughout Canada and most of the United States, and while they have been extirpated in most of their historic range by humans, they are being reintroduced successfully in many places. Feeding mainly on fish, Otters will also eat shellfish, frogs and small mammals and bird ...
SCIENCE ADVICE FROM A RISK ASSESSMENT OF
... Largemouth Bass is a voracious piscivore known to cause changes in ecosystem structure in lakes into which it has been introduced. It is responsible for local extinctions of small prey fishes and declines in minnow species’ richness. It is occurs in both lake and river habitats and some individuals ...
... Largemouth Bass is a voracious piscivore known to cause changes in ecosystem structure in lakes into which it has been introduced. It is responsible for local extinctions of small prey fishes and declines in minnow species’ richness. It is occurs in both lake and river habitats and some individuals ...
Movement behaviour and mortality in invasive and indigenous
... beds) and at meso scales (in bays and on the open coast). M. galloprovincialis moved more and had higher mortality rates than did P. perna. For both species, mortality was greater at the edge than at the centre of beds, and on the open coast than in bays. Mussels at the edge of beds moved more than ...
... beds) and at meso scales (in bays and on the open coast). M. galloprovincialis moved more and had higher mortality rates than did P. perna. For both species, mortality was greater at the edge than at the centre of beds, and on the open coast than in bays. Mussels at the edge of beds moved more than ...
State of the Eastern Scotian Shelf Ecosystem
... analysis focuses on time trends in all available data series associated with three categories of variables: biotic, abiotic, and human. Biotic variables generally include information on the abundance, distribution and composition of finfish and invertebrates, phytoand zooplankton, and marine mammals ...
... analysis focuses on time trends in all available data series associated with three categories of variables: biotic, abiotic, and human. Biotic variables generally include information on the abundance, distribution and composition of finfish and invertebrates, phytoand zooplankton, and marine mammals ...
FD is a package
... Otherwise, a Gower dissimilarity matrix is computed via gowdis. If x is a distance matrix, it is taken as is. When x is a single trait, species with NAs are first excluded to avoid NAs in the distance matrix. If x is a single continuous trait (i.e. of class numeric), a species-species Euclidean dist ...
... Otherwise, a Gower dissimilarity matrix is computed via gowdis. If x is a distance matrix, it is taken as is. When x is a single trait, species with NAs are first excluded to avoid NAs in the distance matrix. If x is a single continuous trait (i.e. of class numeric), a species-species Euclidean dist ...
Non-target effects of insect biocontrol agents and trends in host
... vertebrate introductions for pest control did cause ecological damage. Third, the paper did not adequately differentiate between simple use (feeding or parasitism to any degree) and evidence-based, population-level impacts on non-target species. Fourth, Howarth [1] greatly overstated the risk of ext ...
... vertebrate introductions for pest control did cause ecological damage. Third, the paper did not adequately differentiate between simple use (feeding or parasitism to any degree) and evidence-based, population-level impacts on non-target species. Fourth, Howarth [1] greatly overstated the risk of ext ...
Ugar Island - Torres Strait Regional Authority
... Ugar (Stephens) Island is a small and remote island that occupies a total area of 36 hectares located 160 kilometers north east of Thursday Island. The island is formed on a platform of massively bedded basalt, up to 30m high, that is the result of Pleistocene age volcanic activity, and is part of t ...
... Ugar (Stephens) Island is a small and remote island that occupies a total area of 36 hectares located 160 kilometers north east of Thursday Island. The island is formed on a platform of massively bedded basalt, up to 30m high, that is the result of Pleistocene age volcanic activity, and is part of t ...
Crop domestication, global human-mediated migration, and the
... the region of origin (van den Bosch, 1971). Most studies on ecological pest management and insect-plant interactions have been conducted in the United States, Europe, Australia, and New Zealand (Gurr et al., 2012), developed countries where agriculture consists primarily of introduced crops that sup ...
... the region of origin (van den Bosch, 1971). Most studies on ecological pest management and insect-plant interactions have been conducted in the United States, Europe, Australia, and New Zealand (Gurr et al., 2012), developed countries where agriculture consists primarily of introduced crops that sup ...
Untitled
... herbaceous or woody and at least some portion of the plant grows in water. Herbaceous plants have soft tissues and do not develop woody parts aboveground. Some aquatic plants are completely submerged and others grow just along the water’s edge. Aquatic vegetation is further categorized as either a m ...
... herbaceous or woody and at least some portion of the plant grows in water. Herbaceous plants have soft tissues and do not develop woody parts aboveground. Some aquatic plants are completely submerged and others grow just along the water’s edge. Aquatic vegetation is further categorized as either a m ...
Introduced species
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.