Caribou
... under-fur with a thick layer of guard hairs on top. The guard hairs are hollow (like straws), and the air trapped inside acts as insulation to keep in the caribou's body heat. ...
... under-fur with a thick layer of guard hairs on top. The guard hairs are hollow (like straws), and the air trapped inside acts as insulation to keep in the caribou's body heat. ...
Appendix A
... ecosystem if the parasites effect an introduced species which is, in itself, providing some sort of biological control on our current, already altered ecosystem. A quick reading of the information provided looks like it is silent on this matter. D. We also note a hope that the vector/pathway by whic ...
... ecosystem if the parasites effect an introduced species which is, in itself, providing some sort of biological control on our current, already altered ecosystem. A quick reading of the information provided looks like it is silent on this matter. D. We also note a hope that the vector/pathway by whic ...
Invasions and stable isotope analysis – informing ecology and
... months, and those of hair for longer still (Kurle 2009). The length of time represented by isotopes in tissues also varies with the metabolic activity of the animal concerned. Replacement processes are more rapid in species with higher metabolic rates, so that, for example, mice have faster replacem ...
... months, and those of hair for longer still (Kurle 2009). The length of time represented by isotopes in tissues also varies with the metabolic activity of the animal concerned. Replacement processes are more rapid in species with higher metabolic rates, so that, for example, mice have faster replacem ...
Abundance, Diversity, and Activity of Ants (Hymenoptera: Formicidae)
... Sampling Methods. Two sets of pitfall traps were deployed in different portions of each plot, a lower site (near a stream or a valley) and an upper site (on a ridge). At each site, nine traps were arranged in a 3 ⫻ 3-m grid (Martinat et al. 1993) in 1995. In 1996 and 1997, the arrangement was change ...
... Sampling Methods. Two sets of pitfall traps were deployed in different portions of each plot, a lower site (near a stream or a valley) and an upper site (on a ridge). At each site, nine traps were arranged in a 3 ⫻ 3-m grid (Martinat et al. 1993) in 1995. In 1996 and 1997, the arrangement was change ...
a landowner`s guide
... Some invasive species have insidious root systems (such as goutweed and Japanese knotweed), where a small fragment of root can start a new plant at any time during the growing season. For these species, remove all above-ground vegetation and then cover the entire site— include at least a three foot ...
... Some invasive species have insidious root systems (such as goutweed and Japanese knotweed), where a small fragment of root can start a new plant at any time during the growing season. For these species, remove all above-ground vegetation and then cover the entire site— include at least a three foot ...
Spotted-tailed Quoll A vulnerable species
... Targeted feral animal control programs may benefit the Spotted-tailed Quoll through reduction of competition. However, due to the uncertainty about the uptake of poisoned baits by Quolls and the risk of secondary poisoning (and the degree to which individual animals are affected or killed) vertebrat ...
... Targeted feral animal control programs may benefit the Spotted-tailed Quoll through reduction of competition. However, due to the uncertainty about the uptake of poisoned baits by Quolls and the risk of secondary poisoning (and the degree to which individual animals are affected or killed) vertebrat ...
habitat loss, trophic collapse, and the decline of ecosystem services
... We have used the list of ecosystem goods and services developed by the Millennium Ecosystem Assessment as the basis of our list of services provided by different natural and human-modified ecosystems (Table 1; Millennium Ecosystem Assessment 2003). We have then classified the response of ecosystem ser ...
... We have used the list of ecosystem goods and services developed by the Millennium Ecosystem Assessment as the basis of our list of services provided by different natural and human-modified ecosystems (Table 1; Millennium Ecosystem Assessment 2003). We have then classified the response of ecosystem ser ...
3 Biodiversity and Ecosystem Functioning
... Ecosystem Science Reserve in Minnesota (Figure 3.4), into which they introduced seeds from 1, 2, 4, 8, or 16 grassland–savanna perennial species. The species composition for each of the different diversity treatments was randomly generated from a pool of 18 species, and species were introduced to th ...
... Ecosystem Science Reserve in Minnesota (Figure 3.4), into which they introduced seeds from 1, 2, 4, 8, or 16 grassland–savanna perennial species. The species composition for each of the different diversity treatments was randomly generated from a pool of 18 species, and species were introduced to th ...
Caribbean Islands Biodiversity Hotspot
... freshwater habitats, including rivers, streams, lakes, wetlands and underground karst networks. In addition to providing habitat for many important, unique and migratory animals and plants, these freshwater sites provide clean water, food, hydroelectricity and many other services to local communitie ...
... freshwater habitats, including rivers, streams, lakes, wetlands and underground karst networks. In addition to providing habitat for many important, unique and migratory animals and plants, these freshwater sites provide clean water, food, hydroelectricity and many other services to local communitie ...
The myriad consequences of hunting for vertebrates and plants in
... Bennett 2000). Many carnivores may also be preferred, but this possibility is rarely evaluated perhaps because carnivores are often rare. Less preferred species larger than 1 kg in mass include nocturnal opossums and carnivores, secretive primates, and several edentates (anteaters, sloths and armadi ...
... Bennett 2000). Many carnivores may also be preferred, but this possibility is rarely evaluated perhaps because carnivores are often rare. Less preferred species larger than 1 kg in mass include nocturnal opossums and carnivores, secretive primates, and several edentates (anteaters, sloths and armadi ...
Accepted manuscript
... high connectance indicates a rich web of links between species (Rozdilsky and Stone, 2001). When c < 1, αij = 0 with probability (1 - c). Specifically, for a given community size, I varied c by finding the number of elements that corresponded to the minimum non-zero ...
... high connectance indicates a rich web of links between species (Rozdilsky and Stone, 2001). When c < 1, αij = 0 with probability (1 - c). Specifically, for a given community size, I varied c by finding the number of elements that corresponded to the minimum non-zero ...
Understanding ecosystem dynamics for conservation of
... forest floor. This species has adaptations for pollination by short-tailed bats Mystacina spp., which in the total absence of terrestrial mammals forage on the forest floor like rodents. Multiple threats such as limited pollination of Dactylanthus due to declining bat populations (Ecroyd 1996), and ...
... forest floor. This species has adaptations for pollination by short-tailed bats Mystacina spp., which in the total absence of terrestrial mammals forage on the forest floor like rodents. Multiple threats such as limited pollination of Dactylanthus due to declining bat populations (Ecroyd 1996), and ...
2015 AGM Program - Ontario Invasive Plant Council
... monoculture stands of invasive Phragmites appeared on the Port Franks Beach and in the watersheds flowing into Lake Huron. The LSPCG was created as a result of this concern. We are a grassroots organization committed to working with other organizations and private landowners to restore wetland habit ...
... monoculture stands of invasive Phragmites appeared on the Port Franks Beach and in the watersheds flowing into Lake Huron. The LSPCG was created as a result of this concern. We are a grassroots organization committed to working with other organizations and private landowners to restore wetland habit ...
Chap 35 PP
... • There are four primary types of interaction among community members: • competition • predation (and a special variety of it, parasitism) • mutualism • commensalism ...
... • There are four primary types of interaction among community members: • competition • predation (and a special variety of it, parasitism) • mutualism • commensalism ...
Annual Precipitation (mm) (average over Prairie Ecozone)
... Burrowing Owl. • loss of tall shrubs will reduce habitat for Loggerhead Shrike. • Many of our species at risk are northern fringe populations of species that are common in the U.S. • examples: Buffalograss, Western Spiderwort, Hairy Prairieclover. • climate change should increase the area of suitabl ...
... Burrowing Owl. • loss of tall shrubs will reduce habitat for Loggerhead Shrike. • Many of our species at risk are northern fringe populations of species that are common in the U.S. • examples: Buffalograss, Western Spiderwort, Hairy Prairieclover. • climate change should increase the area of suitabl ...
Factors Influencing Biodiversity and Distributional Gradients in
... twenty families, from two plant divisions, including the fern family in the Polypodiophyta, and the remainder in the Magnoliophyta, also known as angiosperms. Based on Cronquist (1981), mangrove angiosperms belong to nineteen families from two classes, six subclasses and fourteen orders. Two familie ...
... twenty families, from two plant divisions, including the fern family in the Polypodiophyta, and the remainder in the Magnoliophyta, also known as angiosperms. Based on Cronquist (1981), mangrove angiosperms belong to nineteen families from two classes, six subclasses and fourteen orders. Two familie ...
Los Angeles Mission College Facilities Master Plan 3.3 B R
... This section summarizes the sensitive local, State, and federally recognized plant and wildlife species present, or potentially occurring, within the project site and vicinity. It is primarily based on an evaluation of the habitats present within the project site and the suitability of the habitats ...
... This section summarizes the sensitive local, State, and federally recognized plant and wildlife species present, or potentially occurring, within the project site and vicinity. It is primarily based on an evaluation of the habitats present within the project site and the suitability of the habitats ...
Why Marine Islands Are Farther Apart in the Tropics
... Lonsdale and Levinton 1985)—this phenomenon should also affect dispersal. In general, planktotrophic larvae tend to be smaller, to have longer durations in the plankton, and to be more common in warmer tropical waters than nonfeeding larvae (Thorson 1950; Strathmann 1985; Pearse et al. 1991; O’Conno ...
... Lonsdale and Levinton 1985)—this phenomenon should also affect dispersal. In general, planktotrophic larvae tend to be smaller, to have longer durations in the plankton, and to be more common in warmer tropical waters than nonfeeding larvae (Thorson 1950; Strathmann 1985; Pearse et al. 1991; O’Conno ...
Native Fauna on Exotic Trees: Phylogenetic
... introduced to another continent, this may be overlaid by geographically contingent evolution or immigration from locally abundant plant species (mass effects). We assessed within local forests to what extent exotic trees (Douglas-fir, red oak) recruit phytophages (Coleoptera, Heteroptera) from more ...
... introduced to another continent, this may be overlaid by geographically contingent evolution or immigration from locally abundant plant species (mass effects). We assessed within local forests to what extent exotic trees (Douglas-fir, red oak) recruit phytophages (Coleoptera, Heteroptera) from more ...
Resource Allocation in Plants - Association for Biology Laboratory
... in a particular pattern. Each species’ pattern of resource allocation is genetically determined, but it is not completely fixed. Individuals can modify their typical allocation pattern somewhat to allow them to adapt to different abiotic conditions, and the presence of other species. The amount of p ...
... in a particular pattern. Each species’ pattern of resource allocation is genetically determined, but it is not completely fixed. Individuals can modify their typical allocation pattern somewhat to allow them to adapt to different abiotic conditions, and the presence of other species. The amount of p ...
here - Azuero Earth Project
... Bennett 2000). Many carnivores may also be preferred, but this possibility is rarely evaluated perhaps because carnivores are often rare. Less preferred species larger than 1 kg in mass include nocturnal opossums and carnivores, secretive primates, and several edentates (anteaters, sloths and armadi ...
... Bennett 2000). Many carnivores may also be preferred, but this possibility is rarely evaluated perhaps because carnivores are often rare. Less preferred species larger than 1 kg in mass include nocturnal opossums and carnivores, secretive primates, and several edentates (anteaters, sloths and armadi ...
Journal of Arachnology
... examined other Poltys species from Yunnan (Gregorič et al. 2015a; unpublished data), but again, these are not leaf mimics. Our juvenile was found at night in its aerial orb web with a tight mesh architecture, as is typical of Poltys (Fig. 2; compare with fig. 3 in Blackledge et al. 2011). The female ...
... examined other Poltys species from Yunnan (Gregorič et al. 2015a; unpublished data), but again, these are not leaf mimics. Our juvenile was found at night in its aerial orb web with a tight mesh architecture, as is typical of Poltys (Fig. 2; compare with fig. 3 in Blackledge et al. 2011). The female ...
Some Principles of Conservation Biology, as They Apply
... we were taught in school about the strict objectivity of the scietffic method. Conservation biology is more value-laden than most sciences because it is not concerned with knowledge for its own sake but rather is directed toward particular goals. Maintaining biodiversity is an unquestioned goal of c ...
... we were taught in school about the strict objectivity of the scietffic method. Conservation biology is more value-laden than most sciences because it is not concerned with knowledge for its own sake but rather is directed toward particular goals. Maintaining biodiversity is an unquestioned goal of c ...
Invasion, Competition, and Biodiversity Loss in Urban
... Birds foraging in urban habitats showed no differences in foraging behavior between food patches that were close to shelters (under bushes) and open patches (Shochat et al. 2004a). In the desert, however, birds depleted resources in areas close to the bush to a greater extent than in those in the o ...
... Birds foraging in urban habitats showed no differences in foraging behavior between food patches that were close to shelters (under bushes) and open patches (Shochat et al. 2004a). In the desert, however, birds depleted resources in areas close to the bush to a greater extent than in those in the o ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.