(Frostweed, Asteraceae) not found in grasslands?
... The area is approximately 20 km south of the Edwards Plateau region of central Texas just south of the Balcones Escarpment in northern Bexar County (Correll and Johnston 1979; Van Auken et al. 1981; Van Auken and McKinley 2008). The elevation of the study area is approximately 350 m above mean sea l ...
... The area is approximately 20 km south of the Edwards Plateau region of central Texas just south of the Balcones Escarpment in northern Bexar County (Correll and Johnston 1979; Van Auken et al. 1981; Van Auken and McKinley 2008). The elevation of the study area is approximately 350 m above mean sea l ...
Durham Hedgerow Survey 2006 - Durham Biodiversity Partnership
... Hedgerows form an integral part of County Durham’s historical landscape and are important, both as an environmental and cultural resource. Their primary function is to enclose land and livestock, provide shelter for crops and animals and prevent soil erosion. Some of the hedges in the county date ba ...
... Hedgerows form an integral part of County Durham’s historical landscape and are important, both as an environmental and cultural resource. Their primary function is to enclose land and livestock, provide shelter for crops and animals and prevent soil erosion. Some of the hedges in the county date ba ...
Programme and Abstracts - ta
... vrchy Hills protected area and nearby areas. The walk will be about 6 km long. Lunch will be provided as a package. The Pavlovské vrchy Hills are located approximately 40 km south of Brno. We will go to the top of the hill, Děvín, which is a limestone hill reaching only 550 m a.s.l., but it is a dom ...
... vrchy Hills protected area and nearby areas. The walk will be about 6 km long. Lunch will be provided as a package. The Pavlovské vrchy Hills are located approximately 40 km south of Brno. We will go to the top of the hill, Děvín, which is a limestone hill reaching only 550 m a.s.l., but it is a dom ...
Effects of elevated CO2, nitrogen deposition, and decreased species
... plots) distributed among six 20 m diameter rings (whole plots). In three rings, atmospheric CO2 concentration was maintained at 560 mmol mol 1 using a FACE system, which controls atmospheric CO2 concentration without altering microclimate or light conditions (Hendrey et al., 1993). The three other r ...
... plots) distributed among six 20 m diameter rings (whole plots). In three rings, atmospheric CO2 concentration was maintained at 560 mmol mol 1 using a FACE system, which controls atmospheric CO2 concentration without altering microclimate or light conditions (Hendrey et al., 1993). The three other r ...
The Tall grass Prairie in Illinois
... During the last 1,000 years the climate has become slightly cooler and wetter, making conditions more favorable to trees. Savannas, characterized by a grassy prairie-type ground cover underneath an open tree canopy, were common in northeastern Illinois. Scattered out on the prairie were patches of r ...
... During the last 1,000 years the climate has become slightly cooler and wetter, making conditions more favorable to trees. Savannas, characterized by a grassy prairie-type ground cover underneath an open tree canopy, were common in northeastern Illinois. Scattered out on the prairie were patches of r ...
Chap21 test review
... 24. What are some possible explanations for the change in pheasant population between Point B and Point C? Essay 25. Explain why two different species in an ecosystem can share the same habitat but not the same niche. 26. Explain the difference between a population and a community. Explain at least ...
... 24. What are some possible explanations for the change in pheasant population between Point B and Point C? Essay 25. Explain why two different species in an ecosystem can share the same habitat but not the same niche. 26. Explain the difference between a population and a community. Explain at least ...
mangrove ecology
... is comprised of carnivores, etc. These trophic levels are linked through food chains; food chains form interlocking patterns called food webs. There are two basic types of food chains: the grazing food chain (green plants to grazing herbivores to carnivores) and the detrital food chain (dead organic ...
... is comprised of carnivores, etc. These trophic levels are linked through food chains; food chains form interlocking patterns called food webs. There are two basic types of food chains: the grazing food chain (green plants to grazing herbivores to carnivores) and the detrital food chain (dead organic ...
Planktivorous fishes as selective agents for reproductive synchrony
... nocturnal high tides. The timing of larval release relative to the light-dark cycle is known for 38 species, and 32 (84%) of them release larvae only at night. Three features of the natural history of crabs indicate that synchronous reproduction promotes larval avoidance, not swamping, of planktivor ...
... nocturnal high tides. The timing of larval release relative to the light-dark cycle is known for 38 species, and 32 (84%) of them release larvae only at night. Three features of the natural history of crabs indicate that synchronous reproduction promotes larval avoidance, not swamping, of planktivor ...
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... temperate intertidal zone species are living close to their thermal maximum in nature. Respiratory responses to emersion vary among species from different vertical zones. Experimental examination of oxygen consumption rates and lactate accumulation during emersion suggests that intertidal species ar ...
... temperate intertidal zone species are living close to their thermal maximum in nature. Respiratory responses to emersion vary among species from different vertical zones. Experimental examination of oxygen consumption rates and lactate accumulation during emersion suggests that intertidal species ar ...
An examination of multiple factors affecting community structure in
... (1) R. sylvatica and A. jeffersonianum survivorship should be least in the presence of larval A. opacum predators, and (2) A. maculatum larvae should experience their highest survival in pens free of other species of salamander larvae (treatment 1). Both predictions were based on previous results (C ...
... (1) R. sylvatica and A. jeffersonianum survivorship should be least in the presence of larval A. opacum predators, and (2) A. maculatum larvae should experience their highest survival in pens free of other species of salamander larvae (treatment 1). Both predictions were based on previous results (C ...
Guidelines for marine ranching and stock enhancement: Draft
... enhance economic development or social up-liftment. It is important to determine the level of biological risk (risk to other species and to the environment) before considering ranching or stock enhancement. It is clear that there is no such thing as 'no risk' in stock enhancement. Therefore, it is n ...
... enhance economic development or social up-liftment. It is important to determine the level of biological risk (risk to other species and to the environment) before considering ranching or stock enhancement. It is clear that there is no such thing as 'no risk' in stock enhancement. Therefore, it is n ...
Australian Society for Kangaroos - Commissioner for Sustainability
... There are other reports coming in, that within New South Wales and South Australia, kangaroos have all but been wiped out and are not to be found by professional shooters. This is why these states are pressuring many local and state governments to open up new areas to the commercial industry, and w ...
... There are other reports coming in, that within New South Wales and South Australia, kangaroos have all but been wiped out and are not to be found by professional shooters. This is why these states are pressuring many local and state governments to open up new areas to the commercial industry, and w ...
Biology of the black-backed jackal Canis mesomelas
... several days. If the jackal was an ideal rabies vector, a rabies epizootic should surely have followed at least one of these events given the very high population density recorded . Enigmatically, however, no further cases were recorded in either year despite close monitoring of the animals in the a ...
... several days. If the jackal was an ideal rabies vector, a rabies epizootic should surely have followed at least one of these events given the very high population density recorded . Enigmatically, however, no further cases were recorded in either year despite close monitoring of the animals in the a ...
Flesh fly myiasis - Phyllomedusa - Journal of Herpetology
... 1999). It is unclear if these flies can infect small Epipedobates species. Other studies on fly larvae that cause myiasis in amphibians clearly show that smaller frogs under 30 mm die quicker and get consumed within one to three days of infection (Bolek and Coggins 2002, Bolek and Janovy 2004), sugg ...
... 1999). It is unclear if these flies can infect small Epipedobates species. Other studies on fly larvae that cause myiasis in amphibians clearly show that smaller frogs under 30 mm die quicker and get consumed within one to three days of infection (Bolek and Coggins 2002, Bolek and Janovy 2004), sugg ...
Manchester Biodiversity Strategy
... Habitats and Species Appendices 1 and 2 give details of factors that adversely affect priority habitats and species. Many of the same issues affect both species and habitats, these can be summarised (in no order of importance or effect) as: ...
... Habitats and Species Appendices 1 and 2 give details of factors that adversely affect priority habitats and species. Many of the same issues affect both species and habitats, these can be summarised (in no order of importance or effect) as: ...
Effects of Forest Land Management on Terrestrial Mollusks
... species, where analysis is required to ensure the conservation of these species during land management actions. Under Forest Service policy, agency botanists and biologists complete a Biological Evaluation in which programs and activities are reviewed to determine their potential effects on Sensitiv ...
... species, where analysis is required to ensure the conservation of these species during land management actions. Under Forest Service policy, agency botanists and biologists complete a Biological Evaluation in which programs and activities are reviewed to determine their potential effects on Sensitiv ...
Survey of Seeps and Springs within the Bureau of Land
... SS-A (N. Fork Escalante Creek)........................................................................................................... 43 SS-B (John’s Spring)............................................................................................................................ 46 SS-C (Nokom ...
... SS-A (N. Fork Escalante Creek)........................................................................................................... 43 SS-B (John’s Spring)............................................................................................................................ 46 SS-C (Nokom ...
Coexistence under positive frequency dependence Jane Molofsky , James D. Bever
... allowing the coexistence of competitors. While interactions between species and genotypes can also result in positive frequency dependence, positive frequency dependence has usually been credited with hastening the extinction of rare types and is not thought to contribute to coexistence. In the pres ...
... allowing the coexistence of competitors. While interactions between species and genotypes can also result in positive frequency dependence, positive frequency dependence has usually been credited with hastening the extinction of rare types and is not thought to contribute to coexistence. In the pres ...
Effects of Forest Land Management on Terrestrial Mollusks: A
... species, where analysis is required to ensure the conservation of these species during land management actions. Under Forest Service policy, agency botanists and biologists complete a Biological Evaluation in which programs and activities are reviewed to determine their potential effects on Sensitiv ...
... species, where analysis is required to ensure the conservation of these species during land management actions. Under Forest Service policy, agency botanists and biologists complete a Biological Evaluation in which programs and activities are reviewed to determine their potential effects on Sensitiv ...
Energy budget and ecological role of mangrove epibenthos in the
... (points indicate sampling dates) recorded at Furo do Meio with an automatic meteorological station. Blank vertical bars indicate periods when no data was available ...
... (points indicate sampling dates) recorded at Furo do Meio with an automatic meteorological station. Blank vertical bars indicate periods when no data was available ...
Nauplius
... collected empty represented 12% of the total. Thus, despite of their abundance, small sized shells represent a limiting resource to the hermit crabs, because they are available in a reduced amount for immediate occupation. Otherwise, the majority of the empty shells had large size, which might repre ...
... collected empty represented 12% of the total. Thus, despite of their abundance, small sized shells represent a limiting resource to the hermit crabs, because they are available in a reduced amount for immediate occupation. Otherwise, the majority of the empty shells had large size, which might repre ...
Esquimalt Lagoon -Terrestrial Ecology 2013
... structure. This is because they naturally erode from wind, waves and other factors but are not being built up again. This erosion was compounded by large storms in 2008 and 2009 along the Peninsula which removed large amounts of previously existing sediment that has not been returned. These two fact ...
... structure. This is because they naturally erode from wind, waves and other factors but are not being built up again. This erosion was compounded by large storms in 2008 and 2009 along the Peninsula which removed large amounts of previously existing sediment that has not been returned. These two fact ...
Appendix E - Biodiversity Offsets Strategy
... undertaken as part of the EIS. These studies involved desktop work, including a review of previous flora and fauna surveys and database searches. The desktop work was followed by multi-season flora and fauna surveys of the project site. This work allowed for the characterisation of the flora and fau ...
... undertaken as part of the EIS. These studies involved desktop work, including a review of previous flora and fauna surveys and database searches. The desktop work was followed by multi-season flora and fauna surveys of the project site. This work allowed for the characterisation of the flora and fau ...
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.