Strasbourg, 22 May 2002
... anthropogenic processes such as habitat loss and fragmentation, pollution, over-exploitation of natural resources and the spread of invasive alien species (Sala et al. 2000). However, meta-analyses of studies conducted for a wide variety of taxa and geographical regions have shown convincing evidenc ...
... anthropogenic processes such as habitat loss and fragmentation, pollution, over-exploitation of natural resources and the spread of invasive alien species (Sala et al. 2000). However, meta-analyses of studies conducted for a wide variety of taxa and geographical regions have shown convincing evidenc ...
Patterns of morphology and resource use in North American desert
... predation and competition, have been advanced as the ultimate cause of the patterns. We outline the wav in which each of these factors could produce observed community-level patterns and review the evidence for the action of each factor. We conclude that the "competition" hypothesis has more support ...
... predation and competition, have been advanced as the ultimate cause of the patterns. We outline the wav in which each of these factors could produce observed community-level patterns and review the evidence for the action of each factor. We conclude that the "competition" hypothesis has more support ...
The current diet of the Sooty Owl (Tyto - DRO
... Rainforest, located in ephemeral streams. As rainforest takes centuries to form (Peel 1999), it is likely to have been a similar vegetation type for several hundred years, particularly given the size of many of the rainforest trees in the area (Melick and Ashton ...
... Rainforest, located in ephemeral streams. As rainforest takes centuries to form (Peel 1999), it is likely to have been a similar vegetation type for several hundred years, particularly given the size of many of the rainforest trees in the area (Melick and Ashton ...
01_GR9_UA_BioDiversity - Calgary Catholic Schools
... shell colouring as well as the banding on their shells. The colour can range from yellow to brown, and the bands on the shell can range from no bands to bands covering the whole of the shell. Each variation is a result of a variation in the genetic information in the animal’s cells. Some variations ...
... shell colouring as well as the banding on their shells. The colour can range from yellow to brown, and the bands on the shell can range from no bands to bands covering the whole of the shell. Each variation is a result of a variation in the genetic information in the animal’s cells. Some variations ...
Journal of Natural History Is it all death feigning? Case in anurans
... motionless, generally with its eyes closed, but in a few cases the eyes may remain open (Figure 1). The fore- and hindlimbs are bent and kept close to the body. If the observer tries to stretch them, the limbs are forced back by the frog to the initial position, generally against its belly (Figure 2 ...
... motionless, generally with its eyes closed, but in a few cases the eyes may remain open (Figure 1). The fore- and hindlimbs are bent and kept close to the body. If the observer tries to stretch them, the limbs are forced back by the frog to the initial position, generally against its belly (Figure 2 ...
Address
... were conducted within the nonnative range of Chromolaena odorata (L.) R. M. King and H. Robinson at the Xishuangbanna Tropical Botanical Garden (21°560′ N, 101°150′ E; 570 m altitude) of the Chinese Academy of Sciences located in Mengla County, Yunnan Province, southwest China. An outdoor common gar ...
... were conducted within the nonnative range of Chromolaena odorata (L.) R. M. King and H. Robinson at the Xishuangbanna Tropical Botanical Garden (21°560′ N, 101°150′ E; 570 m altitude) of the Chinese Academy of Sciences located in Mengla County, Yunnan Province, southwest China. An outdoor common gar ...
Phytobenthic communities in the Baltic Sea succession
... rocky benthic communities in the northern Baltic proper, unpubl.). That ...
... rocky benthic communities in the northern Baltic proper, unpubl.). That ...
140818 PPR Redef of Anthroposphere R7.1
... the same amino acids as all of the other species, we must also ingest those other species as food. We evolved as a part of the Earth’s trophic web, in which are omnivores and top predators, and we are 100% dependent on it to live. Our continued existence depends on a wide range of species located th ...
... the same amino acids as all of the other species, we must also ingest those other species as food. We evolved as a part of the Earth’s trophic web, in which are omnivores and top predators, and we are 100% dependent on it to live. Our continued existence depends on a wide range of species located th ...
The b-richness of two detritivore caddisflies affects fine organic
... The total biomass of shredders was the same across stream networks (0.16 ± 0.001 g dry weight) and tributaries (0.08 ± 0.001 g dry weight) (Number per tributary: allopatry: 56 Lepidostoma sp., or 4 Pycnopsyche guttifer; sympatry: 28 Lepidostoma sp. and 2 Pycnopsyche gutiffer). These numbers were wit ...
... The total biomass of shredders was the same across stream networks (0.16 ± 0.001 g dry weight) and tributaries (0.08 ± 0.001 g dry weight) (Number per tributary: allopatry: 56 Lepidostoma sp., or 4 Pycnopsyche guttifer; sympatry: 28 Lepidostoma sp. and 2 Pycnopsyche gutiffer). These numbers were wit ...
MICHIGAN’S WILDLIFE ACTION PLAN
... unique requirements will be necessary. These unique species include those that respond to very specific changes within their habitat or ecosystem, species for which degradation or loss of habitat is not the primary threat, and species that do not share habitat associations with other SGCN, and, ther ...
... unique requirements will be necessary. These unique species include those that respond to very specific changes within their habitat or ecosystem, species for which degradation or loss of habitat is not the primary threat, and species that do not share habitat associations with other SGCN, and, ther ...
- Wiley Online Library
... convergence across geographical space or evolutionary time. It is also less convincing if nondivergence is restricted to territorial signals and offset by wide divergence in nonterritorial signals. To test ideas about adaptive convergence it is therefore useful to quantify spatial and temporal varia ...
... convergence across geographical space or evolutionary time. It is also less convincing if nondivergence is restricted to territorial signals and offset by wide divergence in nonterritorial signals. To test ideas about adaptive convergence it is therefore useful to quantify spatial and temporal varia ...
The Conservation and Ecology of Carnivorous Plants
... As discussed in Chapter 1, although our understanding of the ecology and evolution of carnivorous plants has greatly improved in recent years, many fundamental questions remain unanswered. Unfortunately, at the present time, many carnivorous plants are increasingly threatened by anthropogenic activi ...
... As discussed in Chapter 1, although our understanding of the ecology and evolution of carnivorous plants has greatly improved in recent years, many fundamental questions remain unanswered. Unfortunately, at the present time, many carnivorous plants are increasingly threatened by anthropogenic activi ...
Biomass and Habitat Partitioning of Desmognathus on Wet Rock
... its overall importance in forested ecosystems, but there is comparatively more information on distribution and habitat use of plethodontid salamanders in the eastern United States (e.g., Organ, 1961; Hairston, 1987; Grover, 2000; Crawford and Semlitsch, 2008). Plethodontid salamanders typically avoi ...
... its overall importance in forested ecosystems, but there is comparatively more information on distribution and habitat use of plethodontid salamanders in the eastern United States (e.g., Organ, 1961; Hairston, 1987; Grover, 2000; Crawford and Semlitsch, 2008). Plethodontid salamanders typically avoi ...
Meeting the Challenge of Invasive Plants: A Framework for Action
... Wildlife Agencies, states that “at this point in time, the greatest single threat to wildlife of all kinds and sizes is the spread of exotic species, especially invasive plants.” The Association asserts that invasive species present a clear threat to the “constituent elements of habitat quality” and ...
... Wildlife Agencies, states that “at this point in time, the greatest single threat to wildlife of all kinds and sizes is the spread of exotic species, especially invasive plants.” The Association asserts that invasive species present a clear threat to the “constituent elements of habitat quality” and ...
Red King Crab (Paralithodes camtschaticus) - GB non
... Intentional planting (moderate) - as a fishery resource Spread pathways Natural (intermediate) - Adult crabs are highly mobile. Tagging studies have reported movement of up to 425 km in a year. Human (rapid) - may be spread in ballast water or intentionally by fisheries ...
... Intentional planting (moderate) - as a fishery resource Spread pathways Natural (intermediate) - Adult crabs are highly mobile. Tagging studies have reported movement of up to 425 km in a year. Human (rapid) - may be spread in ballast water or intentionally by fisheries ...
NatioNal actioN PlaN for the coNservatioN of albatrosses
... harbors in Recife, Pernambuco State, Cabedelo in Paraíba State, and Natal, in Rio Grande do Norte State. Despite of being considered regions with minor importance to seabirds, these ships have considerable autonomy (can stay for three months or longer at the sea without returning to harbor), and usu ...
... harbors in Recife, Pernambuco State, Cabedelo in Paraíba State, and Natal, in Rio Grande do Norte State. Despite of being considered regions with minor importance to seabirds, these ships have considerable autonomy (can stay for three months or longer at the sea without returning to harbor), and usu ...
fire and nonnative invasive plants
... second burn. Density reduction was less in a second pasture, which did not have enough fuel for a complete burn in the second year. In fires carried by fine grasses and forbs, fire temperatures may be higher in the fine fuel canopy than at the soil surface (Brooks 2002; DiTomaso and others 1999). ...
... second burn. Density reduction was less in a second pasture, which did not have enough fuel for a complete burn in the second year. In fires carried by fine grasses and forbs, fire temperatures may be higher in the fine fuel canopy than at the soil surface (Brooks 2002; DiTomaso and others 1999). ...
An experimental test of the effect of plant functional group diversity
... groups, we then used three-way ANCOVAs without the interactions to increase the power of the analysis to detect effects of individual plant functional groups. In addition to these ANCOVAs, we also used stepwise multiple regressions to test for the relationship between arthropod diversity and the mea ...
... groups, we then used three-way ANCOVAs without the interactions to increase the power of the analysis to detect effects of individual plant functional groups. In addition to these ANCOVAs, we also used stepwise multiple regressions to test for the relationship between arthropod diversity and the mea ...
BIODIVERSITY AND ECOSYSTEM FUNCTION: DO SPECIES
... human life on the planet? Does biodiversity matter? Internationally, research has begun to investigate whether the current unprecedented losses in biodiversity will damage the functioning of ecosystems. This paper reviews this work and highlights the general patterns identified. Scientific evidence ...
... human life on the planet? Does biodiversity matter? Internationally, research has begun to investigate whether the current unprecedented losses in biodiversity will damage the functioning of ecosystems. This paper reviews this work and highlights the general patterns identified. Scientific evidence ...
CNPS policy on mitigation guidelines regarding impacts to rare
... three reasons: (1) These alternatives compromise and ultimately negate mitigation by allowing net losses of rare plant populations and habitat. Mitigation must, according to CEQA, fully offset or reduce significant impacts to a less than significant level. (2) Most rare plants are restricted to thei ...
... three reasons: (1) These alternatives compromise and ultimately negate mitigation by allowing net losses of rare plant populations and habitat. Mitigation must, according to CEQA, fully offset or reduce significant impacts to a less than significant level. (2) Most rare plants are restricted to thei ...
Red swamp crayfish - Pennsylvania Sea Grant
... none selectively kill invasive crayfish without killing other crayfish species. The best way to prevent further ecological problems caused by the red swamp crayfish is to prevent their introduction or slow their spread into new waters. Learn how to identify the red swamp crayfish. Never release live ...
... none selectively kill invasive crayfish without killing other crayfish species. The best way to prevent further ecological problems caused by the red swamp crayfish is to prevent their introduction or slow their spread into new waters. Learn how to identify the red swamp crayfish. Never release live ...
Functional traits are more variable at the intra- than inter
... also quantified and related to plant functional trait variability. The intra-population functional trait variability was compared to the inter-population variability of collected data and global inter-population variability data obtained from the worldwide TRY functional traits database. The results ...
... also quantified and related to plant functional trait variability. The intra-population functional trait variability was compared to the inter-population variability of collected data and global inter-population variability data obtained from the worldwide TRY functional traits database. The results ...
Functional diversity and traitenvironment relationships of stream fish
... Host, 1996), and the role of landscape-level factors in shaping stream communities is increasingly recognised (Allan, 2004). Across catchments of large rivers, stream environments generally change in predictable ways. Stream size, hydrological variability, diversity of habitat types and availability ...
... Host, 1996), and the role of landscape-level factors in shaping stream communities is increasingly recognised (Allan, 2004). Across catchments of large rivers, stream environments generally change in predictable ways. Stream size, hydrological variability, diversity of habitat types and availability ...
Vocabulary List - Sea Turtle Exploration
... Green turtles that occur in the Eastern Pacific that have morphological differences from other green turtles (in the Atlantic, Western Pacific, Indian Ocean). Specifically, they tend to have darker carapaces and smaller body size than other green turtles. There is some debate as to whether they are ...
... Green turtles that occur in the Eastern Pacific that have morphological differences from other green turtles (in the Atlantic, Western Pacific, Indian Ocean). Specifically, they tend to have darker carapaces and smaller body size than other green turtles. There is some debate as to whether they are ...
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.