Endangered Species Act
... In 1999, in anticipation of Endangered Species Act protection for the lynx, the state of Colorado undertook an effort to recover the lynx in the Southern Rocky Mountains. In hopes that the lynx would begin reproducing, the Colorado Division of Wildlife transported and released animals from the north ...
... In 1999, in anticipation of Endangered Species Act protection for the lynx, the state of Colorado undertook an effort to recover the lynx in the Southern Rocky Mountains. In hopes that the lynx would begin reproducing, the Colorado Division of Wildlife transported and released animals from the north ...
Red swamp crayfish - Pennsylvania Sea Grant
... seafood industry and aquarium trade, it is most likely spread when it is intentionally and unintentionally released. Aquarists who keep them as pets, teachers and students who use them as live study specimens, and consumers who purchase them from live food markets, often release them into the wild. ...
... seafood industry and aquarium trade, it is most likely spread when it is intentionally and unintentionally released. Aquarists who keep them as pets, teachers and students who use them as live study specimens, and consumers who purchase them from live food markets, often release them into the wild. ...
FACILITATIVE INTERACTIONS AMONG PLANTS VIA SHARED
... compatible mates, both of which may be modified by the population and community context in which plant–pollinator interactions occur. Although indirect interactions among plants through shared pollinators are often expected to be competitive, pollinator sharing may be beneficial when plant species j ...
... compatible mates, both of which may be modified by the population and community context in which plant–pollinator interactions occur. Although indirect interactions among plants through shared pollinators are often expected to be competitive, pollinator sharing may be beneficial when plant species j ...
Initial Plant Growth in Sand Mine Spoil Amended with Peat Moss
... pots and propagated them under greenhouse conditions. Results indicate that sundial lupine and Illinois bundleflower exhibited the greatest germination and growth among species. Peat moss had the greatest overall impact on germination and growth while the addition of fertilizer positively affected i ...
... pots and propagated them under greenhouse conditions. Results indicate that sundial lupine and Illinois bundleflower exhibited the greatest germination and growth among species. Peat moss had the greatest overall impact on germination and growth while the addition of fertilizer positively affected i ...
Wildlife Management Practices (WMPs)
... Nonnative plants have been brought to North America for centuries. Some were introduced accidentally, but most were brought intentionally to provide livestock forage or to be used as ornamentals. Unfortunately, many nonnative plant species have become established and spread far beyond where they wer ...
... Nonnative plants have been brought to North America for centuries. Some were introduced accidentally, but most were brought intentionally to provide livestock forage or to be used as ornamentals. Unfortunately, many nonnative plant species have become established and spread far beyond where they wer ...
Effects of habitat loss, habitat fragmentation, and isolation on the
... Effects of habitat loss and fragmentation on ladybeetles fragmentation negatively affects the abundance and diversity of organisms (Wilcove et al., 1986; Quinn & Harrison, 1988; Baur & Erhardt, 1995; Didham, 1997; Gilbert et al., 1998), but these effects may be due only to the negative effect of ha ...
... Effects of habitat loss and fragmentation on ladybeetles fragmentation negatively affects the abundance and diversity of organisms (Wilcove et al., 1986; Quinn & Harrison, 1988; Baur & Erhardt, 1995; Didham, 1997; Gilbert et al., 1998), but these effects may be due only to the negative effect of ha ...
Weasel - Ministry of Environment
... The high reproductive rate of weasels is necessary because they also have high death rates. Four-year-old least weasels and ermines have been documented, but few attain that age in the wild and the average life expectancy after independence for both species is less than two years. There is no compar ...
... The high reproductive rate of weasels is necessary because they also have high death rates. Four-year-old least weasels and ermines have been documented, but few attain that age in the wild and the average life expectancy after independence for both species is less than two years. There is no compar ...
Comparison of three vegetation monitoring methods: Their relative
... significant expansion in the spatial and temporal extent of this type of data (e.g., National Research Council, 1994; Heinz Center, 2002). While many of these initiatives will rely on new remote sensing technologies and analyses, including high resolution aerial photography (Laliberte et al., 2007), ...
... significant expansion in the spatial and temporal extent of this type of data (e.g., National Research Council, 1994; Heinz Center, 2002). While many of these initiatives will rely on new remote sensing technologies and analyses, including high resolution aerial photography (Laliberte et al., 2007), ...
The News Journal of the Dragonfly Society of the
... by John and Sue Gregoire..................................................................................................................................12 Celithemis elisa (Calico Pennant) Does It Again, by Sue and John Gregoire.............................................................13 Educat ...
... by John and Sue Gregoire..................................................................................................................................12 Celithemis elisa (Calico Pennant) Does It Again, by Sue and John Gregoire.............................................................13 Educat ...
revised Sept 2015 - The Deer Initiative
... large sac or rumen which is one of the four chambers of the stomach. The rumen contains micro-organisms which help with the initial breakdown of the plant food. The rumen micro-organisms are sensitive to extreme cold and rapid changes of diet, their failure will cause the death of their host. Deer e ...
... large sac or rumen which is one of the four chambers of the stomach. The rumen contains micro-organisms which help with the initial breakdown of the plant food. The rumen micro-organisms are sensitive to extreme cold and rapid changes of diet, their failure will cause the death of their host. Deer e ...
the role of competition in structuring ant communities: a review
... mechanisms underlining species coexistence have received support from empirical studies. The first predicts a balance between competition and colonization, which form a continuum along which species are distributed. Species at one extreme are good at competing and bad at colonizing, whereas species ...
... mechanisms underlining species coexistence have received support from empirical studies. The first predicts a balance between competition and colonization, which form a continuum along which species are distributed. Species at one extreme are good at competing and bad at colonizing, whereas species ...
Biological diversity, ecosystem stability and economic
... Most of the time, economists do not think about what the world might be like a century or two from now if current patterns of resource use were to continue. This would be perfectly reasonable in a world where the material or energetic throughput of the global economy were small relative to the overa ...
... Most of the time, economists do not think about what the world might be like a century or two from now if current patterns of resource use were to continue. This would be perfectly reasonable in a world where the material or energetic throughput of the global economy were small relative to the overa ...
Bog Bird.s-foot Trefoil (Lotus pinnatus)
... flowers emerge in June and mature by early July, before summer moisture deficits reduce the plant’s productivity. Capsules begin to dehisce by mid-July, dispersing mature seed until August. Flowers likely require cross-pollination to set viable seed, though pollinators have not yet been identified. ...
... flowers emerge in June and mature by early July, before summer moisture deficits reduce the plant’s productivity. Capsules begin to dehisce by mid-July, dispersing mature seed until August. Flowers likely require cross-pollination to set viable seed, though pollinators have not yet been identified. ...
DEVELOPING THE COST OF LARGE CARNIVORE CONFLICT
... lands for survival. (Woodroffe and Sillero-Zubiri, 2014). Once endemic to almost the entire country of Namibia brown hyena populations in the country are now estimated to only be between 522-1187 animals and are considered decreasing, (Wiesel et al, 2008). While spotted hyena is listed as ‘least con ...
... lands for survival. (Woodroffe and Sillero-Zubiri, 2014). Once endemic to almost the entire country of Namibia brown hyena populations in the country are now estimated to only be between 522-1187 animals and are considered decreasing, (Wiesel et al, 2008). While spotted hyena is listed as ‘least con ...
Echolocation in sympatric Peale`s dolphins (Lagenorhynchus
... number of studies of animals in the wild as well as in captivity. Based on data from only a few odontocetes, there is a tendency for smaller animals to have lower directionality and source level than larger animals without regard to habitat (Au, 1993; Au et al., 1995; Au et al., 1999). That raises t ...
... number of studies of animals in the wild as well as in captivity. Based on data from only a few odontocetes, there is a tendency for smaller animals to have lower directionality and source level than larger animals without regard to habitat (Au, 1993; Au et al., 1995; Au et al., 1999). That raises t ...
Evidence for overlooked mechanisms of long‐distance seed
... seed dispersal in the Galápagos. Likewise, a study of four granivorous bird species in the Azores showed that all were capable of dispersing intact seeds, and that one of them (Fringilla coelebs) was as effective in moving seeds as the most important local seed dispersers (Heleno et al., 2011). So ...
... seed dispersal in the Galápagos. Likewise, a study of four granivorous bird species in the Azores showed that all were capable of dispersing intact seeds, and that one of them (Fringilla coelebs) was as effective in moving seeds as the most important local seed dispersers (Heleno et al., 2011). So ...
Maureen McClung - Biology Department | UNC Chapel Hill
... sample of current work both in the lab and the field. In order to explore how niche breadth responds to competition, Bolnick (2001) presented populations of cadmium-intolerant Drosophila melanogaster with both cadmium-free and cadmium-laced media. He found that populations experiencing high competit ...
... sample of current work both in the lab and the field. In order to explore how niche breadth responds to competition, Bolnick (2001) presented populations of cadmium-intolerant Drosophila melanogaster with both cadmium-free and cadmium-laced media. He found that populations experiencing high competit ...
Beyond species loss: The extinction of ecological
... We define an axis of habitat loss (x) that ranges from a pristine, undisturbed stage (zero) to a stage (one) of complete disturbance where all species present in the zero stage have lost their habitat. This axis may represent a reversed area axis, widely used to indirectly predict extinction rates wi ...
... We define an axis of habitat loss (x) that ranges from a pristine, undisturbed stage (zero) to a stage (one) of complete disturbance where all species present in the zero stage have lost their habitat. This axis may represent a reversed area axis, widely used to indirectly predict extinction rates wi ...
Keystone Species
... • A common set of developments occurs in most instances of primary succession. • These include the arrival of “pioneer” photosynthesizers, facilitation of the growth of some later species through the actions of earlier species, and the competitive driving out of some earlier species by the actions o ...
... • A common set of developments occurs in most instances of primary succession. • These include the arrival of “pioneer” photosynthesizers, facilitation of the growth of some later species through the actions of earlier species, and the competitive driving out of some earlier species by the actions o ...
April 2006 - Rufford Small Grants
... calvus has been studied in any detail (Ayres 1986). All species are specialist feeders on hardshelled fruit, range over large areas of varied forest habitats within the Amazon basin, and form large groups which often fission into smaller groups (Ayres, 1986; Barnett & BrandonJones, 1997). Uakaris ar ...
... calvus has been studied in any detail (Ayres 1986). All species are specialist feeders on hardshelled fruit, range over large areas of varied forest habitats within the Amazon basin, and form large groups which often fission into smaller groups (Ayres, 1986; Barnett & BrandonJones, 1997). Uakaris ar ...
Maureen McClung - Biology Department | UNC Chapel Hill
... sample of current work both in the lab and the field. In order to explore how niche breadth responds to competition, Bolnick (2001) presented populations of cadmium-intolerant Drosophila melanogaster with both cadmium-free and cadmium-laced media. He found that populations experiencing high competit ...
... sample of current work both in the lab and the field. In order to explore how niche breadth responds to competition, Bolnick (2001) presented populations of cadmium-intolerant Drosophila melanogaster with both cadmium-free and cadmium-laced media. He found that populations experiencing high competit ...
Beyond species loss: the extinction of ecological interactions in a
... We define an axis of habitat loss (x) that ranges from a pristine, undisturbed stage (zero) to a stage (one) of complete disturbance where all species present in the zero stage have lost their habitat. This axis may represent a reversed area axis, widely used to indirectly predict extinction rates wi ...
... We define an axis of habitat loss (x) that ranges from a pristine, undisturbed stage (zero) to a stage (one) of complete disturbance where all species present in the zero stage have lost their habitat. This axis may represent a reversed area axis, widely used to indirectly predict extinction rates wi ...
Is invasion success explained by the enemy release hypothesis?
... fundamental questions such as why some communities are more invaded than others, or why particular species become widespread and abundant (Kolar & Lodge 2001; MacIsaac et al. 2001; Keane & Crawley 2002). The most straightforward and intuitively appealing explanation for the rapid establishment and p ...
... fundamental questions such as why some communities are more invaded than others, or why particular species become widespread and abundant (Kolar & Lodge 2001; MacIsaac et al. 2001; Keane & Crawley 2002). The most straightforward and intuitively appealing explanation for the rapid establishment and p ...
Biological determinants of extinction risk: why are smaller species
... densities, so species with small home ranges may be better able to maintain viable populations in low-productivity environments or remnant habitat patches. In addition, species with larger home ranges may be more vulnerable to reserve edge effects (Woodroffe & Ginsberg, 1998). The focus of the analy ...
... densities, so species with small home ranges may be better able to maintain viable populations in low-productivity environments or remnant habitat patches. In addition, species with larger home ranges may be more vulnerable to reserve edge effects (Woodroffe & Ginsberg, 1998). The focus of the analy ...
Island restoration
The ecological restoration of islands, or island restoration, is the application of the principles of ecological restoration to islands and island groups. Islands, due to their isolation, are home to many of the world's endemic species, as well as important breeding grounds for seabirds and some marine mammals. Their ecosystems are also very vulnerable to human disturbance and particularly to introduced species, due to their small size. Island groups such as New Zealand and Hawaii have undergone substantial extinctions and losses of habitat. Since the 1950s several organisations and government agencies around the world have worked to restore islands to their original states; New Zealand has used them to hold natural populations of species that would otherwise be unable to survive in the wild. The principal components of island restoration are the removal of introduced species and the reintroduction of native species.