Ground Work: Basic Concepts of Ecological Restoration
... Garry oak, or the yellowfin rainbow trout, for example. However, no matter how rare and charismatic an individual species might be, it is always part of a larger web. Although species rescue efforts continue to be important, we are beginning to take a more holistic approach to restoration. Every spe ...
... Garry oak, or the yellowfin rainbow trout, for example. However, no matter how rare and charismatic an individual species might be, it is always part of a larger web. Although species rescue efforts continue to be important, we are beginning to take a more holistic approach to restoration. Every spe ...
Chronic nitrogen deposition alters the structure and function of
... community composition within the most abundant group (Oribatida), indicating speciesspecific responses to N deposition. Experimental N deposition reduced the number of microarthropods colonizing litterbags by 41% (P ¼ 0.014). This was associated with a reduction in 13C mobilization from leaf litter i ...
... community composition within the most abundant group (Oribatida), indicating speciesspecific responses to N deposition. Experimental N deposition reduced the number of microarthropods colonizing litterbags by 41% (P ¼ 0.014). This was associated with a reduction in 13C mobilization from leaf litter i ...
Ecosystem fragmentation drives increased diet variation in an
... systems, locally called “tidal creeks,” are characterized by a relatively narrow creek mouth that provides the primary conduit for tidal exchange (semi-diurnal tidal regime, ~0.8 meter tidal amplitude). Creeks typically broaden moving landward from the mouth, grading into expanses of shallow (<1 m a ...
... systems, locally called “tidal creeks,” are characterized by a relatively narrow creek mouth that provides the primary conduit for tidal exchange (semi-diurnal tidal regime, ~0.8 meter tidal amplitude). Creeks typically broaden moving landward from the mouth, grading into expanses of shallow (<1 m a ...
Harvestmen and Pseudoscorpions - Digital Commons @ Michigan
... removing cores. Differences in day/night habitat may also hinder sampling efforts, particularly for those that might migrate between shrubs/trees and the moss layer. Some harvestmen hang from the undersides of branches and leaves in the daytime, taking advantage of the shade to avoid overheating and ...
... removing cores. Differences in day/night habitat may also hinder sampling efforts, particularly for those that might migrate between shrubs/trees and the moss layer. Some harvestmen hang from the undersides of branches and leaves in the daytime, taking advantage of the shade to avoid overheating and ...
International Single Species Action Plan for the
... limosa’s has shown range contraction and major declines in most key breeding areas during the last decades. Today the islandica population numbers c.25,000 pairs while the nominate population of the Western Palearctic totals c.110,000 pairs. About 50% of the nominate population breeds in The Netherl ...
... limosa’s has shown range contraction and major declines in most key breeding areas during the last decades. Today the islandica population numbers c.25,000 pairs while the nominate population of the Western Palearctic totals c.110,000 pairs. About 50% of the nominate population breeds in The Netherl ...
Ch. 4 Species Interaction & Community Ecology
... • Secondary succession: a disturbance dramatically alters, but does not destroy all local organisms. by fires, hurricanes, logging, farming, etc. - The remaining organisms form “building blocks” for the next population species • Climax community: the community resulting from successful succession – ...
... • Secondary succession: a disturbance dramatically alters, but does not destroy all local organisms. by fires, hurricanes, logging, farming, etc. - The remaining organisms form “building blocks” for the next population species • Climax community: the community resulting from successful succession – ...
The concept of overgrazing and its role in management of
... For population ecologists, (ecological) carrying capacity (K) is the population level above which the population will no longer grow (see Fig. 1A), i.e., the population size at which density dependent processes are so strong that reproduction is balanced by mortality (Begon et al. 1996). A number of ...
... For population ecologists, (ecological) carrying capacity (K) is the population level above which the population will no longer grow (see Fig. 1A), i.e., the population size at which density dependent processes are so strong that reproduction is balanced by mortality (Begon et al. 1996). A number of ...
Chapter 52
... • In tropical rain forests, rainfall is relatively constant, while in tropical dry forests precipitation is highly seasonal • Tropical forests are vertically layered and competition for light is intense • Tropical forests are home to millions of animal species, including an estimated 5–30 million st ...
... • In tropical rain forests, rainfall is relatively constant, while in tropical dry forests precipitation is highly seasonal • Tropical forests are vertically layered and competition for light is intense • Tropical forests are home to millions of animal species, including an estimated 5–30 million st ...
Rethinking Community Assembly through the Lens
... by its frequency (relative abundance) within the community. Negative frequency-dependent population growth rates are the hallmark of stabilizing niche differences and arise when a focal species suppresses itself more than it does the resident species with which it competes, which can serve to “stabi ...
... by its frequency (relative abundance) within the community. Negative frequency-dependent population growth rates are the hallmark of stabilizing niche differences and arise when a focal species suppresses itself more than it does the resident species with which it competes, which can serve to “stabi ...
Seasonal variations in species composition, abundance, biomass
... was presumably due to the influence of heavy rainfall and the resultant river run-off, as a regular annual event in this area during monsoon. The slight variations of salinity between the estuarine and mangroves was owing to the proximity of the former to the Bay of Bengal. The chlorophyll a concent ...
... was presumably due to the influence of heavy rainfall and the resultant river run-off, as a regular annual event in this area during monsoon. The slight variations of salinity between the estuarine and mangroves was owing to the proximity of the former to the Bay of Bengal. The chlorophyll a concent ...
Invasive Alien Species Fact Sheet – Dreissena polymorpha
... biomonitoring organism (Franz 1992), and quantitative assessments have been conducted regularly since the 1960s in the context of water quality surveys e.g. in the Rhine (Schiller 1990). D. polymorpha is one of the indicator species of the German Federal Government's Environmental Specimen Bank (UBA ...
... biomonitoring organism (Franz 1992), and quantitative assessments have been conducted regularly since the 1960s in the context of water quality surveys e.g. in the Rhine (Schiller 1990). D. polymorpha is one of the indicator species of the German Federal Government's Environmental Specimen Bank (UBA ...
Representations of the ecological niche
... conditions, in ecology called categories (from the ‘n-category theory’), to construct a hypervolume in multidimensional space (see §2.3). In ontology terminology, the ‘category’ is a combination of a quality/feature/property and its value(s), henceforth called condition to avoid misinterpretation. E ...
... conditions, in ecology called categories (from the ‘n-category theory’), to construct a hypervolume in multidimensional space (see §2.3). In ontology terminology, the ‘category’ is a combination of a quality/feature/property and its value(s), henceforth called condition to avoid misinterpretation. E ...
Migratory Animals Couple Biodiversity and Ecosystem Functioning
... destinations. Although migration patterns vary considerably across species, the large spatial scales traveled, together with their seasonality, which generate pulsed, highly predictable interactions, critically differentiate migration from other types of movement. Moreover, by integrating resource p ...
... destinations. Although migration patterns vary considerably across species, the large spatial scales traveled, together with their seasonality, which generate pulsed, highly predictable interactions, critically differentiate migration from other types of movement. Moreover, by integrating resource p ...
Wild Open Spaces of the West
... Range Management is the careful use and management of rangeland resources (plants, animals, soil, and water) to meet the needs and desires of society without damaging the resource. The tricky part is that the “needs and desires of society” are continually changing. Livestock production has alw ...
... Range Management is the careful use and management of rangeland resources (plants, animals, soil, and water) to meet the needs and desires of society without damaging the resource. The tricky part is that the “needs and desires of society” are continually changing. Livestock production has alw ...
Interactions among mycorrhizae, atmospheric CO R E P O R T
... (A ¼ 0.18, P ¼ 0.03), and the two-way interactions: N · AM (A ¼ 0.25, P ¼ 0.00009), CO2 · N (A ¼ 0.22, P ¼ 0.0003), and CO2 · AM (A ¼ 0.18, P ¼ 0.0007; Fig. 3). Plant species responded individualistically to the experimental treatments. Aboveground biomass of two C3 species responded positively to e ...
... (A ¼ 0.18, P ¼ 0.03), and the two-way interactions: N · AM (A ¼ 0.25, P ¼ 0.00009), CO2 · N (A ¼ 0.22, P ¼ 0.0003), and CO2 · AM (A ¼ 0.18, P ¼ 0.0007; Fig. 3). Plant species responded individualistically to the experimental treatments. Aboveground biomass of two C3 species responded positively to e ...
4-H Wildlife Habitat Evaluation Program
... The manual is divided into the following major sections. Wildlife Management Concepts and Terms introduces basic wildlife management principles. These concepts and terms are the basis for the remainder of the manual. Participants should be prepared to use the wildlife management concepts and ter ...
... The manual is divided into the following major sections. Wildlife Management Concepts and Terms introduces basic wildlife management principles. These concepts and terms are the basis for the remainder of the manual. Participants should be prepared to use the wildlife management concepts and ter ...
WP6 Monitoring Strategy
... The brackish Baltic Sea is physically dominated by the freshwater input by rivers and precipitation on the one hand, and by the limited inflow of more saline water over the shallow entrances to the North Sea on the other. The annual freshwater inflow into the Baltic represents roughly two per cent o ...
... The brackish Baltic Sea is physically dominated by the freshwater input by rivers and precipitation on the one hand, and by the limited inflow of more saline water over the shallow entrances to the North Sea on the other. The annual freshwater inflow into the Baltic represents roughly two per cent o ...
Threatened Species Strategy for Tasmania
... grassland and dry forests have declined significantly since European settlement. Some communities have been reduced to small remnants while others are highly restricted in distribution due to particular conditions such as an unusual rock or soil type. Such highly localised ecological communities are ...
... grassland and dry forests have declined significantly since European settlement. Some communities have been reduced to small remnants while others are highly restricted in distribution due to particular conditions such as an unusual rock or soil type. Such highly localised ecological communities are ...
The Melaleuca Menace
... ornamental tree and as a soil stabilizer on levees and spoil islands. It was even used in early attempts to dry up the Everglades. Why is melaleuca bad? ...
... ornamental tree and as a soil stabilizer on levees and spoil islands. It was even used in early attempts to dry up the Everglades. Why is melaleuca bad? ...
Biodiversity and ecosystem health
... Biological diversity, or biodiversity, is the term given to the variety of life on earth and the natural patterns it forms. This diversity is often understood in terms of the wide variety of plants, animals and micro-organisms but also includes genetic differences within each species. Another aspect ...
... Biological diversity, or biodiversity, is the term given to the variety of life on earth and the natural patterns it forms. This diversity is often understood in terms of the wide variety of plants, animals and micro-organisms but also includes genetic differences within each species. Another aspect ...
Skeena River Estuary Juvenile Salmon Habitat
... Table 2. Life history of Chinook salmon in the Skeena River watershed (Williams 1989; Gottesfeld and Rabnett 2008). ........................................................................................................... 26 Table 3. Life history of pink salmon in the Skeena River watershed (Wil ...
... Table 2. Life history of Chinook salmon in the Skeena River watershed (Williams 1989; Gottesfeld and Rabnett 2008). ........................................................................................................... 26 Table 3. Life history of pink salmon in the Skeena River watershed (Wil ...
Pearl River Conservation Area Plan
... been identified as a high priority focus for conservation attention within the East Gulf Coastal Plain and Northern Gulf of Mexico ecoregions because of its high biodiversity significance. The Pearl River is also within two other ecoregions, the Upper East Gulf Coastal Plain and Gulf Coast Prairies ...
... been identified as a high priority focus for conservation attention within the East Gulf Coastal Plain and Northern Gulf of Mexico ecoregions because of its high biodiversity significance. The Pearl River is also within two other ecoregions, the Upper East Gulf Coastal Plain and Gulf Coast Prairies ...
Ontogenetic trait variation influences tree community assembly
... which local abiotic conditions and biotic interactions impose deterministic filters on the functional trait diversity of co-occurring species (Belyea and Lancaster 1999, Diaz et al. 1999). Abiotic filtering has been found to increase species similarity through abiotic constraints in more stressful e ...
... which local abiotic conditions and biotic interactions impose deterministic filters on the functional trait diversity of co-occurring species (Belyea and Lancaster 1999, Diaz et al. 1999). Abiotic filtering has been found to increase species similarity through abiotic constraints in more stressful e ...
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.