factsheet caribou en
... good navigators, unerringly walking hundreds of kilometres from the taiga to their relatively small calving areas on the tundra in spring. They tend to follow frozen lakes and rivers, open snow-free uplands, and eskers, or long narrow hills of soil and rock dumped by glaciers. Caribou are able to ke ...
... good navigators, unerringly walking hundreds of kilometres from the taiga to their relatively small calving areas on the tundra in spring. They tend to follow frozen lakes and rivers, open snow-free uplands, and eskers, or long narrow hills of soil and rock dumped by glaciers. Caribou are able to ke ...
Grizzly Bear Conservation in the Yellowstone to Yukon
... the natural heritage of the Yellowstone to Yukon region. A significant component of this heritage is the intact populations of native plants and animals. As one means of protecting and preserving this biodiversity, Y2Y conducts scientific research to identify priority areas within the region for lar ...
... the natural heritage of the Yellowstone to Yukon region. A significant component of this heritage is the intact populations of native plants and animals. As one means of protecting and preserving this biodiversity, Y2Y conducts scientific research to identify priority areas within the region for lar ...
Demography and ecology of a declining endemic: The Olympic
... background extinction and colonization patterns. A qualitative analysis of the spatial and temporal distribution of the observed extinctions and recolonizations, dispersal patterns, and demographic rates in the context of other stable and declining populations of marmots all suggest that this is no ...
... background extinction and colonization patterns. A qualitative analysis of the spatial and temporal distribution of the observed extinctions and recolonizations, dispersal patterns, and demographic rates in the context of other stable and declining populations of marmots all suggest that this is no ...
CA-2004-051ATT1
... formerly under intensive agricultural uses would completely regain all value as California tiger salamander habitat because wetlands that provide breeding habitat would have been destroyed as a result of intensive farming, limiting these areas to potential upland habitat. Fallowed agricultural land ...
... formerly under intensive agricultural uses would completely regain all value as California tiger salamander habitat because wetlands that provide breeding habitat would have been destroyed as a result of intensive farming, limiting these areas to potential upland habitat. Fallowed agricultural land ...
BfN-Skripten 356, 2013, pdf-Datei
... The return of the wolf to Central Europe is an outstanding achievement of nature conservation, and at the same time one of its major challenges. In order to mitigate conflicts and achieve coexistence between wolves and humans active wolf management is needed. The wolves that have recently settled in ...
... The return of the wolf to Central Europe is an outstanding achievement of nature conservation, and at the same time one of its major challenges. In order to mitigate conflicts and achieve coexistence between wolves and humans active wolf management is needed. The wolves that have recently settled in ...
Recovery Plan for the Canada Lynx
... maternal dens are typically situated in habitat that includes coarse woody debris. During high points in population cycles lynx disperse from Cape Breton Island through a variety of open, fragmented, and human-dominated habitats that increases their vulnerability to mortality. Although lynx are amon ...
... maternal dens are typically situated in habitat that includes coarse woody debris. During high points in population cycles lynx disperse from Cape Breton Island through a variety of open, fragmented, and human-dominated habitats that increases their vulnerability to mortality. Although lynx are amon ...
Competitive interactions for shelter between
... volitans) poses a threat to western Atlantic and Caribbean coral reef systems. Lionfish are small-bodied predators that can reduce the abundance and diversity of native fishes via predation. Additionally, native predators or competitors appear to have a negligible effect on similarly sized lionfish. ...
... volitans) poses a threat to western Atlantic and Caribbean coral reef systems. Lionfish are small-bodied predators that can reduce the abundance and diversity of native fishes via predation. Additionally, native predators or competitors appear to have a negligible effect on similarly sized lionfish. ...
Draft Reintroduction Plan for Bison at RMA-NWR
... manage a metapopulation of genetically “pure” bison (i.e., those with no cattle genes) as part of a larger, multi-refuge effort to preserve true bison. In addition, grazing by bison would restore a natural disturbance regime which, in combination with prescribed burning, would invigorate grassland s ...
... manage a metapopulation of genetically “pure” bison (i.e., those with no cattle genes) as part of a larger, multi-refuge effort to preserve true bison. In addition, grazing by bison would restore a natural disturbance regime which, in combination with prescribed burning, would invigorate grassland s ...
Soil macrofauna field manual – technical level
... macrofauna (invertebrates larger than 2 mm) rather than the whole range of soil organisms (from microorganisms, protozoa, nematodes and small arthropods to larger soil animals) may seem incomplete. Soil macrofauna (the earthworms, termites, ants, beetles, and millipedes, among others), however, is v ...
... macrofauna (invertebrates larger than 2 mm) rather than the whole range of soil organisms (from microorganisms, protozoa, nematodes and small arthropods to larger soil animals) may seem incomplete. Soil macrofauna (the earthworms, termites, ants, beetles, and millipedes, among others), however, is v ...
The Scrub Management Handbook - Natural England publications
... managers, set within a framework that moves from the ecology and value of scrub, through identification of objectives, assessment of environmental considerations, to the final selection of technique options. However, the ultimate decision as to which nature conservation features, objective(s) and te ...
... managers, set within a framework that moves from the ecology and value of scrub, through identification of objectives, assessment of environmental considerations, to the final selection of technique options. However, the ultimate decision as to which nature conservation features, objective(s) and te ...
Competitive interactions for shelter between invasive Pacific red lionfish and native Nassau grouper.
... volitans) poses a threat to western Atlantic and Caribbean coral reef systems. Lionfish are small-bodied predators that can reduce the abundance and diversity of native fishes via predation. Additionally, native predators or competitors appear to have a negligible effect on similarly sized lionfish. ...
... volitans) poses a threat to western Atlantic and Caribbean coral reef systems. Lionfish are small-bodied predators that can reduce the abundance and diversity of native fishes via predation. Additionally, native predators or competitors appear to have a negligible effect on similarly sized lionfish. ...
Trout cod (Maccullochella macquariensis)recovery plan
... trout cod populations difficult to ascertain. There is also no definitive research to determine the fundamental cause(s) of decline. It is likely that a range of factors, have contributed to the species decline, and that some of these factors have a greater importance in different locations and/or h ...
... trout cod populations difficult to ascertain. There is also no definitive research to determine the fundamental cause(s) of decline. It is likely that a range of factors, have contributed to the species decline, and that some of these factors have a greater importance in different locations and/or h ...
A Little Bug with a Big Bite: Impact of Hemlock Woolly Adelgid
... New England, HWA-induced ecological disturbance were associated with the increased N cycling and N turnover rates [39]. In addition, annual nitrification rates were 29 times higher in HWA infested areas than that under healthy forests, implying if nitrate leaching occurs in affected regions, it coul ...
... New England, HWA-induced ecological disturbance were associated with the increased N cycling and N turnover rates [39]. In addition, annual nitrification rates were 29 times higher in HWA infested areas than that under healthy forests, implying if nitrate leaching occurs in affected regions, it coul ...
Recovery Plan for the California Red-legged Frog
... population status of the California red-legged frog sufficiently to warrant delisting. Recovery Priority Number: 6C, per criteria published by Federal Register Notice (48 FR 43098; September 21, 1983). This number indicates a subspecies with high threats and low recovery potential, in conflict with ...
... population status of the California red-legged frog sufficiently to warrant delisting. Recovery Priority Number: 6C, per criteria published by Federal Register Notice (48 FR 43098; September 21, 1983). This number indicates a subspecies with high threats and low recovery potential, in conflict with ...
D6.5 Annex 1 EPPO PRA DSS 2011
... animals or microorganisms. Apart from their effects on cultivated plants, weeds may also have effects on the environment. A few pest plants may be primarily damaging to natural or semi-natural vegetation. These are often referred to as “invasive”. Their effects are on the environment (including indi ...
... animals or microorganisms. Apart from their effects on cultivated plants, weeds may also have effects on the environment. A few pest plants may be primarily damaging to natural or semi-natural vegetation. These are often referred to as “invasive”. Their effects are on the environment (including indi ...
petitioned - American Public Power Association
... behavior, along with the species’ preference for hibernating sites within the optimal temperature range for the WNS fungus, may make the tricolored bat particularly susceptible to lethal infection by the disease. This species appears to have been in gradual decline even prior to the catastrophic adv ...
... behavior, along with the species’ preference for hibernating sites within the optimal temperature range for the WNS fungus, may make the tricolored bat particularly susceptible to lethal infection by the disease. This species appears to have been in gradual decline even prior to the catastrophic adv ...
Artificial Regeneration of Major Oak (Quercus) Species
... vigor were positively correlated with seed dry mass. Kleinschmit and Svolba (1979) reported strong positive correlation between acorn weight and height growth of English oak (Quercus robur L.) and Durmast oak (Quercus petraea [Matt.] Liebl.) in Germany. Elsewhere, Bonfil (1998) observed that acorn m ...
... vigor were positively correlated with seed dry mass. Kleinschmit and Svolba (1979) reported strong positive correlation between acorn weight and height growth of English oak (Quercus robur L.) and Durmast oak (Quercus petraea [Matt.] Liebl.) in Germany. Elsewhere, Bonfil (1998) observed that acorn m ...
Appendix 3 - SGCN Summaries DRAFT Michigan’s Wildlife Action Plan 2015-2025
... A distribution map is provided for each species for which data are available. Distribution of terrestrial species is presented by county, whereas distribution of aquatic species is presented with point data. Distribution maps for crossover species (those that use both aquatic and terrestrial landsca ...
... A distribution map is provided for each species for which data are available. Distribution of terrestrial species is presented by county, whereas distribution of aquatic species is presented with point data. Distribution maps for crossover species (those that use both aquatic and terrestrial landsca ...
English - CAPRA Network
... or organisms from consideration before in-depth examination is undertaken is a valuable characteristic of the categorization process. An advantage of pest categorization is that it can be done with relatively little information; however information should be sufficient to adequately carry out the ca ...
... or organisms from consideration before in-depth examination is undertaken is a valuable characteristic of the categorization process. An advantage of pest categorization is that it can be done with relatively little information; however information should be sufficient to adequately carry out the ca ...
Juvenile Pacific Salmon in Puget Sound
... uget Sound salmon (genus Oncorhynchus) spawn in freshwater and feed, grow and mature in marine waters. During their transition from freshwater to saltwater, juvenile salmon occupy nearshore ecosystems in Puget Sound. This period of nearshore residence is critical to the viability, persistence and ab ...
... uget Sound salmon (genus Oncorhynchus) spawn in freshwater and feed, grow and mature in marine waters. During their transition from freshwater to saltwater, juvenile salmon occupy nearshore ecosystems in Puget Sound. This period of nearshore residence is critical to the viability, persistence and ab ...
THE FORAGING ECOLOGY, HABITAT USE, AND
... The Laysan teal, an endangered species, is restricted to a single population on Laysan Island, a remote atoll of the Hawaiian archipelago. Little is known of the Laysan teal’s ecology, therefore, I examined food habits, habitat use, and population dynamics. These aspects of its ecology are fundament ...
... The Laysan teal, an endangered species, is restricted to a single population on Laysan Island, a remote atoll of the Hawaiian archipelago. Little is known of the Laysan teal’s ecology, therefore, I examined food habits, habitat use, and population dynamics. These aspects of its ecology are fundament ...
Assessment of Canada Lynx Research and
... as evidence that interference competition is more important in the southern lynx range. Interference competition also may be manifest through spatial exclusion, and lynx in Nova Scotia, Canada, apparently were displaced by an expanding bobcat population (Parker et al. 1983). Along the same line, Bus ...
... as evidence that interference competition is more important in the southern lynx range. Interference competition also may be manifest through spatial exclusion, and lynx in Nova Scotia, Canada, apparently were displaced by an expanding bobcat population (Parker et al. 1983). Along the same line, Bus ...
Research Information Needs
... RIN 1.3.4 - What are the habitat characteristics in the CRE below the Paria River that most affect primary productivity? How are these characteristics affected by GCD operations? RIN 1.4 - What is the current carbon budget for the CRE? RIN 1.4.1 - How are the composition and biomass of benthic inve ...
... RIN 1.3.4 - What are the habitat characteristics in the CRE below the Paria River that most affect primary productivity? How are these characteristics affected by GCD operations? RIN 1.4 - What is the current carbon budget for the CRE? RIN 1.4.1 - How are the composition and biomass of benthic inve ...
aggregation
... 1) describes the basic ideas of the aggregation theory of species coexistence 2) indicates the two different questions that ecologists ask 3) summarizes the support for the aggregation theory in respect of these questions 4) considers the mechanisms, or the lack of them, that allow the conditions re ...
... 1) describes the basic ideas of the aggregation theory of species coexistence 2) indicates the two different questions that ecologists ask 3) summarizes the support for the aggregation theory in respect of these questions 4) considers the mechanisms, or the lack of them, that allow the conditions re ...
utah prairie dog - WildEarth Guardians
... the severe imperilment of Utah prairie dogs is not explained away by metapopulation theory, under which UPD complexes comprise a metapopulation, with some complexes disappearing while other complexes appear. This theory would not explain why new colonies and complexes are not flourishing at a rate s ...
... the severe imperilment of Utah prairie dogs is not explained away by metapopulation theory, under which UPD complexes comprise a metapopulation, with some complexes disappearing while other complexes appear. This theory would not explain why new colonies and complexes are not flourishing at a rate s ...
Biological Dynamics of Forest Fragments Project
The Biological Dynamics of Forest Fragments Project, originally called the Minimum Critical Size of Ecosystems Project is a large-scale ecological experiment looking at the effects of habitat fragmentation on tropical rainforest; it is one of the most expensive biology experiments ever run. The experiment, which was established in 1979 is located near Manaus, in the Brazilian Amazon. The project is jointly managed by the Smithsonian Institution and INPA, the Brazilian Institute for Research in the Amazon.The project was initiated in 1979 by Thomas Lovejoy to investigate the SLOSS debate. Initially named the Minimum Critical Size of Ecosystems Project, the project created forest fragments of sizes 1 hectare (2 acres), 10 hectares (25 acres), and 100 hectares (247 acres). Data were collected prior to the creation of the fragments and studies of the effects of fragmentation now exceed 25 years.As of October 2010 562 publications and 143 graduate dissertations and theses had emerged from the project.