These_4_niveau 2 et 3 - Chaire CRSNG/Hydro
... relation between biodiversity and ecosystem functioning (BEF) began. After more than 20 years of BEF research, general consensus leans toward increasing productivity, resource capture and decomposition with diversity. The two main mechanisms proposed to underlie this positive relationship are niche ...
... relation between biodiversity and ecosystem functioning (BEF) began. After more than 20 years of BEF research, general consensus leans toward increasing productivity, resource capture and decomposition with diversity. The two main mechanisms proposed to underlie this positive relationship are niche ...
Sage-Grouse and Indirect Interactions: Potential Implications of
... and has been estimatedto occur on only 11%of western lands (U.S. Fish and Wildlife Service 1978). As a result, the program is not believed to negatively impact overall coyote numbersin the West, but may effectively suppress their numbers in some areas (U.S. Fish and Wildlife Service 1978, U.S. Gener ...
... and has been estimatedto occur on only 11%of western lands (U.S. Fish and Wildlife Service 1978). As a result, the program is not believed to negatively impact overall coyote numbersin the West, but may effectively suppress their numbers in some areas (U.S. Fish and Wildlife Service 1978, U.S. Gener ...
Resilience of Microbial Systems Towards Disturbances - UvA-DARE
... similar environments was the trigger for additional theories such as niche differentiation, complementarity, sampling effect, and idiosyncrasy. These theories, for which species diversity is the main driver, were complemented by others that suggested a link between fluxes of nutrients or energy thro ...
... similar environments was the trigger for additional theories such as niche differentiation, complementarity, sampling effect, and idiosyncrasy. These theories, for which species diversity is the main driver, were complemented by others that suggested a link between fluxes of nutrients or energy thro ...
- Wiley Online Library
... We expanded our evaluation of the hunting mode–habitat domain concept here by investigating the effects of six spider predators: sit-and-wait nursery web spiders P. mira and Pisaurina brevipes, sit-and-pursue slender crab spiders Tibellus maritimus and Tibellus oblongus and active jumping spiders P. ...
... We expanded our evaluation of the hunting mode–habitat domain concept here by investigating the effects of six spider predators: sit-and-wait nursery web spiders P. mira and Pisaurina brevipes, sit-and-pursue slender crab spiders Tibellus maritimus and Tibellus oblongus and active jumping spiders P. ...
The Effect of Deer and Method of Removal of Invasive Lonicera
... Milligan et al. 2004, Krueger-Mangold et al. 2006). Another threat to native ecosystems ...
... Milligan et al. 2004, Krueger-Mangold et al. 2006). Another threat to native ecosystems ...
Ecology of the threatened thick-shelled river mussel Unio crassus
... life stage on fish within the order Unionoida (Graf 2013). Despite this common adaptation, individual interactions between fish and mussels depend on fish community structure, fish behaviour and habitat and have led to a variety of interactions between mussel species and their hosts. 2.2. The mussel ...
... life stage on fish within the order Unionoida (Graf 2013). Despite this common adaptation, individual interactions between fish and mussels depend on fish community structure, fish behaviour and habitat and have led to a variety of interactions between mussel species and their hosts. 2.2. The mussel ...
Grizzly Bear Conservation in the Yellowstone to Yukon
... The Yellowstone to Yukon Conservation Initiative (Y2Y) works with non-governmental organizations, government agencies, communities and businesses to maintain and restore the natural heritage of the Yellowstone to Yukon region. A significant component of this heritage is the intact populations of nat ...
... The Yellowstone to Yukon Conservation Initiative (Y2Y) works with non-governmental organizations, government agencies, communities and businesses to maintain and restore the natural heritage of the Yellowstone to Yukon region. A significant component of this heritage is the intact populations of nat ...
Climate and Species Richness Predict the Phylogenetic Structure of
... different habitat types (e.g. tropical and subtropical moist broad leaf forests, deserts and xeric shrublands, etc.). Although a direct test of the relationship between habitat type and community structure was not performed, there was variation in the phylogenetic structure of carnivore assemblages ...
... different habitat types (e.g. tropical and subtropical moist broad leaf forests, deserts and xeric shrublands, etc.). Although a direct test of the relationship between habitat type and community structure was not performed, there was variation in the phylogenetic structure of carnivore assemblages ...
Seasonal Spatial Patterns of Two Sympatric Frogs: California Red
... Abstract.—The introduced American Bullfrog (Lithobates catesbeianus) has been implicated in the decline of native amphibians. Bullfrogs have become widespread in California and are a threat to the native California Red-legged Frog (Rana draytonii). The two species are ecologically similar, and the b ...
... Abstract.—The introduced American Bullfrog (Lithobates catesbeianus) has been implicated in the decline of native amphibians. Bullfrogs have become widespread in California and are a threat to the native California Red-legged Frog (Rana draytonii). The two species are ecologically similar, and the b ...
KATARINA OGANJAN Distribution, feeding and
... Marine ecosystems provide a broad range of ecological, scientific and socioeconomic services critical for human welfare. Since climate change presents new challenges for marine ecosystems, understanding how environmental factors drive species ecology has created a new sense of urgency. Knowledge of ...
... Marine ecosystems provide a broad range of ecological, scientific and socioeconomic services critical for human welfare. Since climate change presents new challenges for marine ecosystems, understanding how environmental factors drive species ecology has created a new sense of urgency. Knowledge of ...
The rapid spread of rusty crayfish (Orconectes rusticus) with
... Key words: crayfish hybridization, freshwater crayfish, Orconectes propinquus, Orconectes virilis, species invasions Abstract The rusty crayfish, Orconectes rusticus, is one of America’s best-known non-indigenous crayfishes, having been identified as extirpating native crayfishes and disrupting local aqua ...
... Key words: crayfish hybridization, freshwater crayfish, Orconectes propinquus, Orconectes virilis, species invasions Abstract The rusty crayfish, Orconectes rusticus, is one of America’s best-known non-indigenous crayfishes, having been identified as extirpating native crayfishes and disrupting local aqua ...
The SER Primer on Ecological Restoration
... under the regime of tribal land usage. The return of this ecosystem to an open, park-like woodland, occupied and utilized in the traditional tribal manner, qualifies as ecological restoration. Sustainable cultural practices are traditional human land uses that maintain biodiversity and productivity. ...
... under the regime of tribal land usage. The return of this ecosystem to an open, park-like woodland, occupied and utilized in the traditional tribal manner, qualifies as ecological restoration. Sustainable cultural practices are traditional human land uses that maintain biodiversity and productivity. ...
UWA BORR Report1-2012final
... limitations the collars did not have a mortality switch, so often it was unclear if animals were dead up in a tree of if they had managed to remove their collars, which we observed they were capable of doing throughout the study. Only two of the brush-tailed phascogales were confirmed dead, one from ...
... limitations the collars did not have a mortality switch, so often it was unclear if animals were dead up in a tree of if they had managed to remove their collars, which we observed they were capable of doing throughout the study. Only two of the brush-tailed phascogales were confirmed dead, one from ...
Understanding Our Native Grasslands agricultural, environmental and indigenous
... acidity. Adoption of more sustainable grazing management practices such as non-continuous grazing (e.g. rotational ...
... acidity. Adoption of more sustainable grazing management practices such as non-continuous grazing (e.g. rotational ...
Amphibian Population Declines: Evolutionary Considerations
... takes time. It is important to realize that much evolution occurs through genetic changes that affect rates of development and mechanisms that control specific biological processes. Furthermore, evolutionary changes occur at different rates and on different timescales, depending on the organism. For ...
... takes time. It is important to realize that much evolution occurs through genetic changes that affect rates of development and mechanisms that control specific biological processes. Furthermore, evolutionary changes occur at different rates and on different timescales, depending on the organism. For ...
Benefits derived from opportunistic survival
... Recently, there have been encouraging signs that may portend moderation in the rate of decline for the species. These signs include improvements in juvenile survival at some NWHI sites (National Marine Fisheries Service, unpublished data), as well as an increase in abundance in the Main Hawaiian Isl ...
... Recently, there have been encouraging signs that may portend moderation in the rate of decline for the species. These signs include improvements in juvenile survival at some NWHI sites (National Marine Fisheries Service, unpublished data), as well as an increase in abundance in the Main Hawaiian Isl ...
Virus Specificity in Disease Systems: Are Species Redundant?
... For each virus, the range of host species or vector species was categorized as specific (single species), narrow (2–5 species), or broad (ⱖ6 species). Equivalent categories for genera and families used the same numerical boundaries. For each of the questions listed earlier, we used contingency table ...
... For each virus, the range of host species or vector species was categorized as specific (single species), narrow (2–5 species), or broad (ⱖ6 species). Equivalent categories for genera and families used the same numerical boundaries. For each of the questions listed earlier, we used contingency table ...
Functional richness, functional evenness and functional divergence
... Copyright # OIKOS 2005 ISSN 0030-1299 ...
... Copyright # OIKOS 2005 ISSN 0030-1299 ...
Lissemys punctata (Bonnaterre 1789) – Indian Flapshell Turtle
... salt marshes, rice fields, gutters, and canals in metropolitan areas. It is common in brackish water lagoons on the east coast of India, and is often abundant in irrigation canals and tanks, and paddy fields with stagnant water. The species is not plentiful in the main channels of rivers or in large ...
... salt marshes, rice fields, gutters, and canals in metropolitan areas. It is common in brackish water lagoons on the east coast of India, and is often abundant in irrigation canals and tanks, and paddy fields with stagnant water. The species is not plentiful in the main channels of rivers or in large ...
IDAHO CONSERVATION EFFORT - Colorado Natural Heritage
... factors considered to be limiting the species' well being, (2) stabilize and recover the species and their habitats to preclude listing as "endangered" or "threatened" under the ESA, (3) recover populations of species that are listed to facilitate their removal from the list, and (4) encourage priva ...
... factors considered to be limiting the species' well being, (2) stabilize and recover the species and their habitats to preclude listing as "endangered" or "threatened" under the ESA, (3) recover populations of species that are listed to facilitate their removal from the list, and (4) encourage priva ...
Twenty-two years chairgroup
... an overall research plan aimed at understanding the ultimate questions in animal ecology, namely what determines the abundance and distribution of species. We have concentrated on large herbivores, their food and the biotopes in which they live because of their impact on the landscape, the exciting ...
... an overall research plan aimed at understanding the ultimate questions in animal ecology, namely what determines the abundance and distribution of species. We have concentrated on large herbivores, their food and the biotopes in which they live because of their impact on the landscape, the exciting ...
Weed Risk Assessment: Calluna vulgaris
... Lifecycle can vary according to habitat. In dry heath and moorland environments four distinct phases occur. In the pioneer stage (0-6 years) it grows vertically from the apex. During the building stage (6-14 years) it grows laterally and forms a dense canopy. In the mature phase (14-25 years) latera ...
... Lifecycle can vary according to habitat. In dry heath and moorland environments four distinct phases occur. In the pioneer stage (0-6 years) it grows vertically from the apex. During the building stage (6-14 years) it grows laterally and forms a dense canopy. In the mature phase (14-25 years) latera ...
Ecological niche of plant pathogens
... ecological niche of pathogens. The paper is a review of the knowledge accumulated during last decades in the niche theory of pathogens and proposes an ecological approach in research. It quest for new control methods in what concerns forest plant pathogens, with a special emphasis on fungi like orga ...
... ecological niche of pathogens. The paper is a review of the knowledge accumulated during last decades in the niche theory of pathogens and proposes an ecological approach in research. It quest for new control methods in what concerns forest plant pathogens, with a special emphasis on fungi like orga ...
Cascadia Wildlands
... plantations in the adjoining Late Successional Reserve that are younger than this stand, and will not reach NSO nesting habitat as quickly as this stand will under the no-action alternative. Therefore, the EA should have considered whether these matrix stands are also important to the recovery of th ...
... plantations in the adjoining Late Successional Reserve that are younger than this stand, and will not reach NSO nesting habitat as quickly as this stand will under the no-action alternative. Therefore, the EA should have considered whether these matrix stands are also important to the recovery of th ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.