Ensis directus
... The American razor clam is known as Ensis directus (Conrad, 1843) in its native area, and this is also what is was called when it was first introduced to Europe (Von Cosel et al., 1982). However, further studies showed that this name was based on a fossil and presumably extinct species (van Urk, 197 ...
... The American razor clam is known as Ensis directus (Conrad, 1843) in its native area, and this is also what is was called when it was first introduced to Europe (Von Cosel et al., 1982). However, further studies showed that this name was based on a fossil and presumably extinct species (van Urk, 197 ...
effects of temperature on the population dynamics
... found in colder streams). On the contrary, the composition and total biomass of ciliates from sandy substrates were independent from temperature. Substrate-specific responses may be due to differences in mechanical disturbance, nutrient availability, or exposure to invertebrate grazers. In Chapter F ...
... found in colder streams). On the contrary, the composition and total biomass of ciliates from sandy substrates were independent from temperature. Substrate-specific responses may be due to differences in mechanical disturbance, nutrient availability, or exposure to invertebrate grazers. In Chapter F ...
abstract book - Birdmeetings.org
... W7.3 Yezerinac, S.; Connecting Dunlin breeding sites with migratory stopover and wintering locations using lightlevel geolocation ...
... W7.3 Yezerinac, S.; Connecting Dunlin breeding sites with migratory stopover and wintering locations using lightlevel geolocation ...
PDF version - Department of Fish and Wildlife Conservation
... flowing waters (streams, rivers) and standing waters (ponds, lakes, marshes, swamps). They are found in almost any wetland, including drainage ditches; wherever there is water. Some species have adapted to living in ponds, but most live in streams and rivers where water flows provide an abundant oxy ...
... flowing waters (streams, rivers) and standing waters (ponds, lakes, marshes, swamps). They are found in almost any wetland, including drainage ditches; wherever there is water. Some species have adapted to living in ponds, but most live in streams and rivers where water flows provide an abundant oxy ...
Biotic resistance experienced by an invasive crustacean
... and disturbed habitats are especially prone to invasions because the species-poor native communities lack predators, competitors, and disease organisms and thus offer little biotic resistance (Stachowicz et al. 1999). The success of goats on oceanic islands and the establishment of the Asian clam Po ...
... and disturbed habitats are especially prone to invasions because the species-poor native communities lack predators, competitors, and disease organisms and thus offer little biotic resistance (Stachowicz et al. 1999). The success of goats on oceanic islands and the establishment of the Asian clam Po ...
The Marine Ecozones of Canada
... ecozones are not in a pristine or natural state. Many of the southern ecozones are very much human modified/dominated ecosystems. However, each ecozone is distinct, containing its own particular sets abiotic and biotic characteristics. Some of the defining features of· ecosystems may be associated w ...
... ecozones are not in a pristine or natural state. Many of the southern ecozones are very much human modified/dominated ecosystems. However, each ecozone is distinct, containing its own particular sets abiotic and biotic characteristics. Some of the defining features of· ecosystems may be associated w ...
Crayfish Biodiversity and Conservation
... with the current into the set net. Some collectors use a funnel-shaped minnow trap baited with fish or meat scraps, dog food, corn, or aquatic plants to attract crayfish. Because crayfish are nocturnal, using lights to collect them at night is more efficient than hunting them during the daylight hou ...
... with the current into the set net. Some collectors use a funnel-shaped minnow trap baited with fish or meat scraps, dog food, corn, or aquatic plants to attract crayfish. Because crayfish are nocturnal, using lights to collect them at night is more efficient than hunting them during the daylight hou ...
1 - Symmetree Consulting
... providing greater resilience to ecological, economic and social issues or drivers such as climate change, transition from harvesting old growth to second growth stands, and mountain pine beetle. Articulating a vision for our future forests and applying a “lens” to that vision of any forestry related ...
... providing greater resilience to ecological, economic and social issues or drivers such as climate change, transition from harvesting old growth to second growth stands, and mountain pine beetle. Articulating a vision for our future forests and applying a “lens” to that vision of any forestry related ...
POSITIVE INDIRECT EFFECTS OF REEF FISHES ON KELP
... role in giant kelp forest communities by preventing infestations of mesograzers that could severely impact or potentially destroy recovering kelp forests after extreme disturbance events. However, these trophic linkages, specifically the direct and indirect effects of fishes on the biomass of mesograz ...
... role in giant kelp forest communities by preventing infestations of mesograzers that could severely impact or potentially destroy recovering kelp forests after extreme disturbance events. However, these trophic linkages, specifically the direct and indirect effects of fishes on the biomass of mesograz ...
Chapter V Vascular plant litter input in subarctic
... In high-latitude ecosystems climate change induced plant community shifts towards dominance of shrubs and trees will potentially have large consequences for soil carbon dynamics. Changes in the litter layer due to an altered quantity and quality of litter input, or by its indirect effect on microcli ...
... In high-latitude ecosystems climate change induced plant community shifts towards dominance of shrubs and trees will potentially have large consequences for soil carbon dynamics. Changes in the litter layer due to an altered quantity and quality of litter input, or by its indirect effect on microcli ...
The links between biodiversity, ecosystem services and human well
... No matter who we are, or where we live, our well-being depends on the way ecosystems work. Most obviously, ecosystems can provide us with material things that are essential for our daily lives, such as food, wood, wool and medicines. Although the other types of benefit we get from ecosystems are eas ...
... No matter who we are, or where we live, our well-being depends on the way ecosystems work. Most obviously, ecosystems can provide us with material things that are essential for our daily lives, such as food, wood, wool and medicines. Although the other types of benefit we get from ecosystems are eas ...
Impact of global change on biodiversity and biogeochemical cycles
... 10 years of Free Air Carbon dioxide Enrichment (FACE) on grassland: Are there long-term effects on soil C pools and the ecosystem trace gas balance? ....................................................................................... 64 Lenhart K., Kammann C., Grünhage, L., Jäger H.-J. .......... ...
... 10 years of Free Air Carbon dioxide Enrichment (FACE) on grassland: Are there long-term effects on soil C pools and the ecosystem trace gas balance? ....................................................................................... 64 Lenhart K., Kammann C., Grünhage, L., Jäger H.-J. .......... ...
Biology Objective 3
... At one end of the diagram are plants. Plants are called producers since they are capable of turning sunlight into food by photosynthesis. They pass 10% of the energy they absorb to animals that eat them. ...
... At one end of the diagram are plants. Plants are called producers since they are capable of turning sunlight into food by photosynthesis. They pass 10% of the energy they absorb to animals that eat them. ...
Freshwater ciliates as ecophysiological model organisms – lessons
... to increase their population numbers rapidly and to colonize new environments, such as many ponds and pools, efficiently. Note that, if the mean number of Daphnia offspring is 3, ciliates would have to divide twice in the same time period to increase their population size at the same rate. The asexu ...
... to increase their population numbers rapidly and to colonize new environments, such as many ponds and pools, efficiently. Note that, if the mean number of Daphnia offspring is 3, ciliates would have to divide twice in the same time period to increase their population size at the same rate. The asexu ...
Problem Analysis: Effects of Invasive Species on Species at Risk in
... reviewed available information on invasive (native and alien) species in British Columbia and assessed their potential interactions with forest- and range-dependent Species at Risk to evaluate the relative importance of the interactions. In doing so, we also tracked some of the key knowledge gaps an ...
... reviewed available information on invasive (native and alien) species in British Columbia and assessed their potential interactions with forest- and range-dependent Species at Risk to evaluate the relative importance of the interactions. In doing so, we also tracked some of the key knowledge gaps an ...
A synthesis of scientific knowledge to support conservation
... the early 1960s, and feral stock were scarce in its furthermost corners until the 1980s. Riverine forest and rainforest margins have been among the first north-west Kimberley habitats degraded by stock. The rivers provided corridors by which stock have spread from leases and established feral popula ...
... the early 1960s, and feral stock were scarce in its furthermost corners until the 1980s. Riverine forest and rainforest margins have been among the first north-west Kimberley habitats degraded by stock. The rivers provided corridors by which stock have spread from leases and established feral popula ...
The Baltic Sea ecosystem from a porpoise point of view
... The borders between populations are not fully resolved, however, there seems to be strong evidence of a border between the North Sea /Skagerrak/Northern Kattegat population and the Southern Kattegat /Belt Sea population going through Kattegat (Sveegaard, 2011; Wiemann et al., 2010). The border be ...
... The borders between populations are not fully resolved, however, there seems to be strong evidence of a border between the North Sea /Skagerrak/Northern Kattegat population and the Southern Kattegat /Belt Sea population going through Kattegat (Sveegaard, 2011; Wiemann et al., 2010). The border be ...
An evaluation of coastal dune forest restoration in northern KwaZulu-Natal,
... An evaluation of coastal dune forest rehabilitation through ecological succession Across the globe, the attainment of natural resources (such as minerals and timber) for human-use has similar consequences; namely, habitat loss, habitat fragmentation and habitat degradation (Foley et al. 2005). It is ...
... An evaluation of coastal dune forest rehabilitation through ecological succession Across the globe, the attainment of natural resources (such as minerals and timber) for human-use has similar consequences; namely, habitat loss, habitat fragmentation and habitat degradation (Foley et al. 2005). It is ...
generality of leaf trait relationships: a test across six biomes
... analysis system (Decagon Instruments, Pullman, Washington). Total surface area was also calculated based on the shape of each leaf type. The results were similar if total rather than projected surface area was used, although the quantitative relations differ. Given that projected area was measured, ...
... analysis system (Decagon Instruments, Pullman, Washington). Total surface area was also calculated based on the shape of each leaf type. The results were similar if total rather than projected surface area was used, although the quantitative relations differ. Given that projected area was measured, ...
Greater Sage-Grouse Response to Sagebrush Reduction
... habitat used by sage-grouse can vary by sagebrush species, grass and forb composition, and structure. Sage-grouse utilize sagebrush communities for wintering, pre-laying, lekking, nesting, early brood rearing, and summer-late brood rearing habitat. Sagebrush communities follow a grassland to shrubla ...
... habitat used by sage-grouse can vary by sagebrush species, grass and forb composition, and structure. Sage-grouse utilize sagebrush communities for wintering, pre-laying, lekking, nesting, early brood rearing, and summer-late brood rearing habitat. Sagebrush communities follow a grassland to shrubla ...
Untitled - Vermont Fish and Wildlife
... for basking; relatively vegetation-free sandbars and shale pebble-gravel beaches that are welldrained and have adequate solar exposure for nesting; and underwater hibernacula that provide well-oxygenated water and are free of ice scour and disturbance. The Vermont soft-shell turtle population is est ...
... for basking; relatively vegetation-free sandbars and shale pebble-gravel beaches that are welldrained and have adequate solar exposure for nesting; and underwater hibernacula that provide well-oxygenated water and are free of ice scour and disturbance. The Vermont soft-shell turtle population is est ...
(Diptera: Culicidae) Within the United States?
... Journal of Medical Entomology, 2016, Vol. 53, No. 5 may be novel compared with other locations, it is difficult to know what ramifications there are for these differences without comparative data on populations elsewhere. The arrival of Ae. albopictus in the United States coincided with declines in ...
... Journal of Medical Entomology, 2016, Vol. 53, No. 5 may be novel compared with other locations, it is difficult to know what ramifications there are for these differences without comparative data on populations elsewhere. The arrival of Ae. albopictus in the United States coincided with declines in ...
The Northern Lapwing (Vanellus vanellus) in Norway: Exploring the
... With its boldly patterned plumage, tufted black crown and impressive display flight, the Lapwing is an unmistakable bird in the agricultural landscape. Because of its attractive appearance and behavior the Lapwing is a popular bird among farmers, and across much of its range it’s known as a “harbing ...
... With its boldly patterned plumage, tufted black crown and impressive display flight, the Lapwing is an unmistakable bird in the agricultural landscape. Because of its attractive appearance and behavior the Lapwing is a popular bird among farmers, and across much of its range it’s known as a “harbing ...
Feeding-Induced Changes in Plant Quality Mediate Interspecific
... interspecific competition between two sap-feeding insects. Three lines of experimental evidence from the laboratory, field cages, and open field plots provide support for the detrimental effects of previous feeding by one planthopper species on the subsequent survival and performance of the other. L ...
... interspecific competition between two sap-feeding insects. Three lines of experimental evidence from the laboratory, field cages, and open field plots provide support for the detrimental effects of previous feeding by one planthopper species on the subsequent survival and performance of the other. L ...
INTRASPECIFIC VARIATION OF THREE PHENOTYPIC
... species diversity, and ecologists have long questioned how this diversity is maintained (Chesson 2000, Cadotte and Carscadden 2011,Ricklefs 1987). This has motivated the proposition of niche based hypotheses to help explain the maintenance of species diversity. Grinnell (1917) first coined the term ...
... species diversity, and ecologists have long questioned how this diversity is maintained (Chesson 2000, Cadotte and Carscadden 2011,Ricklefs 1987). This has motivated the proposition of niche based hypotheses to help explain the maintenance of species diversity. Grinnell (1917) first coined the term ...
Habitat
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A habitat is an ecological or environmental area that is inhabited by human, a particular species of animal, plant, or other type of organism.A place where a living thing lives is its habitat. It is a place where it can find food, shelter, protection and mates for reproduction. It is the natural environment in which an organism lives, or the physical environment that surrounds a species population.A habitat is made up of physical factors such as soil, moisture, range of temperature, and availability of light as well as biotic factors such as the availability of food and the presence of predators. A habitat is not necessarily a geographic area—for a parasitic organism it is the body of its host, part of the host's body such as the digestive tract, or a cell within the host's body.