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EU NON-NATIVE SPECIES RISK ANALYSIS – RISK ASSESSMENT
EU NON-NATIVE SPECIES RISK ANALYSIS – RISK ASSESSMENT

... SECTION B – Detailed assessment PROBABILITY OF ENTRY Important instructions:  Entry is the introduction of an organism into Europe. Not to be confused with spread, the movement of an organism within Europe.  For organisms which are already present in Europe, only complete the entry section for cur ...
Invasion of Norway spruce (Picea abies) and the rise of the boreal
Invasion of Norway spruce (Picea abies) and the rise of the boreal

... full potential of the palaeoecological records has not been used for increasing our understanding of critically important processes of colonization, population growth and competitive species interactions associated with species range shifts. The main reason for this may be a technical one. Palaeoeco ...
Consumer mobility and the relative importance of consumption and
Consumer mobility and the relative importance of consumption and

... can influence which life stages of consumers and producers interact. 'Adult' mobility constrains the life stage at which both producers and consumers can colonize disturbed habitat (in this paper, the term 'adult' will include juveniles that are near a species' typical adult size as well as reproduc ...
Climate Change and Alpine Vegetation Shifts on Mountaintop
Climate Change and Alpine Vegetation Shifts on Mountaintop

... Global temperatures have risen with c.a. 0.85 °C during the past century and are predicted to increase even further at an accelerated rate in the coming decades. These changes in the climate system are having a profound impact on the distribution and composition of plant communities. Mountain ecosys ...
Here - American Society of Mammalogists
Here - American Society of Mammalogists

... grazing in Kenya. Five focal species were studied: 3 ruminants (Thomson’s gazelle, hartebeest, buffalo) and 2 nonruminants (warthog, plains zebra) spanning a range of body sizes. Results show that cattle not only change the quantity of grass but the quality of it as well, and may actually improve ve ...
E4ects of Habitat Destruction and Resource
E4ects of Habitat Destruction and Resource

... We developed a mean "eld, metapopulation model to study the consequences of habitat destruction on a predator}prey interaction. The model complements and extends earlier work published by Bascompte and SoleH (1998, J. theor. Biol. 195, 383}393) in that it also permits use of alternative prey (i.e., ...
Habitat Loss and Fragmentation
Habitat Loss and Fragmentation

... The spatial extent at which cover is measured influences the ability to accurately identify the relationship between landscape structure and population or community outcomes. Numerous studies show that the spatial extent over which habitat is measured influences the strength of the relationship betw ...
The spatial and temporal components of functional connectivity in
The spatial and temporal components of functional connectivity in

... century, human activity has impacted connectivity through land-use change and associated habitat destruction and fragmentation, posing serious threats to biodiversity worldwide (Sala et al. 2000). As habitat is lost, landscapes become more fragmented and less connected, usually with negative effects ...
Movement behaviour and mortality in invasive and indigenous
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 ...
American Journal of Botan
American Journal of Botan

... relative abundance of ecological communities. But biodiversity is also defined as variation in the number and type of interactions (e.g., predation, pollination) in which different species are engaged (Dyer et al., 2010). Some species may disproportionately facilitate biodiversity through their inte ...
Management Plan Supplement - Yakima/Klickitat Fisheries Project
Management Plan Supplement - Yakima/Klickitat Fisheries Project

... abundance. Historically, 500,000-900,000 adult salmon and steelhead returned to the Yakima Subbasin annually. This total was comprised of spring, summer, and fall chinook, coho, sockeye, and steelhead. Summer chinook, sockeye, and native coho are extinct in the subbasin. Coho currently found in the ...
EU NON-NATIVE SPECIES RISK ANALYSIS – RISK ASSESSMENT
EU NON-NATIVE SPECIES RISK ANALYSIS – RISK ASSESSMENT

... Snakeheads used in the aquarium fish trade include a few small species and brightly colored juveniles of several large snakeheads. They are moderately popular with hobbyists in Japan and Europe. There are no economic data on this specific market for these species, although it is probably very low. S ...
Mine area - Conservation Significant fauna and habitat
Mine area - Conservation Significant fauna and habitat

... Northern Quolls are most common on dissected rocky escarpments, but are also found in eucalypt forest and woodland (Oakwood 2008). Northern Quolls are both terrestrial and partially arboreal (Braithwaite and Begg 1995) and use a variety of den sites, including rock crevices, tree hollows, logs, term ...
Confounding factors in the detection of species responses to habitat
Confounding factors in the detection of species responses to habitat

... We show that confounding factors can mask many fragmentation effects. For instance, there are multiple ways in which species traits like trophic level, dispersal ability and degree of habitat specialisation influence specieslevel responses. The temporal scale of investigation may have a strong influenc ...
“The History And Future Of Island Conservation In A Snail Shell”
“The History And Future Of Island Conservation In A Snail Shell”

... c. Do current management options deliver potentially successful reintroduced Partula populations, given the theorised predation parameters within which they are likely to work? 1.2 Creating an island baseline to analyse extinction risk The concept of a baseline within conservation-minded ecology co ...
Evolution and Ecology of Species Range Limits
Evolution and Ecology of Species Range Limits

... patches existing beyond the range border (Carter & Prince 1981, Holt & Keitt 2000). These unexpected patterns resulting from interactions between dispersal and environmental heterogeneity suggest that it may be challenging to identify underlying gradients contributing to range limits. ...
Risk analysis report of non-native organisms in Belgium
Risk analysis report of non-native organisms in Belgium

... areas included within the Atlantic and the continental biogeographic regions in Europe). The risk analysis tool that was used here follows a simplified scheme elaborated on the basis of the recommendations provided by the international standard for pest risk analysis for organisms of quarantine conc ...
Impact Assessment of Invasive Plant Species in Selected
Impact Assessment of Invasive Plant Species in Selected

... was most successful in sites above 1400 m, but in lower sites it was co-invaded by A. conyzoides. Species like pati (Artemisia), kantakari (Solanum xanthocarpum) and sisnu (Urtica) on roadsides and fallow lands, and banso (Setaria pallidesesca), samo (Panicum colonum), phurke (Pittosporum napaulense ...
SOLWAY EUROPEAN MARINE SITE Natural England and Scottish
SOLWAY EUROPEAN MARINE SITE Natural England and Scottish

... disturbance of species for the Solway European Marine Site (EMS). This advice is being prepared to both comply with, and support, our obligations under Regulation 33(2) of the Conservation (Natural Habitats &c.) Regulations 1994 (as amended). The revision of this document has been undertaken by Natu ...
Late Quaternary Extinctions: State of the Debate
Late Quaternary Extinctions: State of the Debate

... 25 years to explain the LQE. Here, we offer a continent-by-continent summary of the LQE, focusing mostly on mammals. We do not discuss Holocene island extinctions in any detail because most researchers accept that anthropogenic factors were pivotal. We evaluate the main hypotheses proposed to explai ...
Palaeoenvironment at Gravettian Sites in Central Europe with
Palaeoenvironment at Gravettian Sites in Central Europe with

... that wind temperatures were relatively constant regardless of site location, with summer values at all sites within the range 7.6 °C to 9.5 °C and winter temperatures from -20.7 °C to -24 °C. These wind temperatures indicate that it was not latitude, but topography and the position of a site which p ...
Key Conservation Issues - Oregon Conservation Strategy
Key Conservation Issues - Oregon Conservation Strategy

... highest known level in at least the past 700,000 years, and probably much longer, and it continues to rise rapidly. The Intergovernmental Panel on Climate Change (IPCC), an international science body, concluded in 2007 and reaffirmed in 2014 that the evidence is “unequivocal” that the earth is warmi ...
montane, heath and bog habitats - Cairngorms National Park Authority
montane, heath and bog habitats - Cairngorms National Park Authority

... • Targeted and expert wildlife management advice from various advisors e.g. FWAG, SAC and free-lance consultants. There are a number of actions that would improve the biodiversity of these upland areas. Action in other adjacent ‘non-montane and moorland’ habitats, such as woodland management, may ha ...
Late Quaternary Extinctions: State of the Debate
Late Quaternary Extinctions: State of the Debate

... 25 years to explain the LQE. Here, we offer a continent-by-continent summary of the LQE, focusing mostly on mammals. We do not discuss Holocene island extinctions in any detail because most researchers accept that anthropogenic factors were pivotal. We evaluate the main hypotheses proposed to explai ...
View/Open - Oregon State University
View/Open - Oregon State University

... frequency distribution to compare the location and size of instar peaks among different habitats. M. magister abundance was significantly higher in seagrass habitats over mud habitat, which supported our hypothesis that juveniles prefer structurally complex habitats. However, there was no difference ...
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Assisted colonization

Assisted colonization, also known as assisted migration or managed relocation, is the act of deliberately helping plant and animal species colonize new habitats when driven out of their historical habitats due to rapid environmental change, especially climate change. All species have some natural capacity to disperse into new habitats and adapt to change, but ongoing climate change is so rapid that many species are unable to keep pace naturally. In order to prevent extinctions, some scientists and practitioners are considering assisting the dispersal of species that have poor natural dispersal ability. This idea has sparked intense debate over the potential benefits of assisted colonization, which include avoiding many species extinctions, and the risks, which include accidentally introducing new invasive species. Although the debate remains primarily conceptual with few real-world applications, scientists and land managers have already begun to consider several specific assisted colonization projects.
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