Enhancing species distribution modeling by characterizing predator
... cover was calculated for each of the seven vegetation classes at a 1.5-km2 resolution to correspond to the accuracy of the lynx telemetry data. A 30-m2 resolution digital elevation model (DEM; Gesch et al. 2002) was used to calculate the following topographic parameters at 1.5-km2 resolution: mean s ...
... cover was calculated for each of the seven vegetation classes at a 1.5-km2 resolution to correspond to the accuracy of the lynx telemetry data. A 30-m2 resolution digital elevation model (DEM; Gesch et al. 2002) was used to calculate the following topographic parameters at 1.5-km2 resolution: mean s ...
annotated-bibliography-literature-condition-queensland
... Most Australian cities have developed along large rivers that are fed by a network of small creeks draining through urban and suburban areas. The plant and animal communities associated with urban creeks offer a variety of resources which can enrich human life. The diversity of plant communities, th ...
... Most Australian cities have developed along large rivers that are fed by a network of small creeks draining through urban and suburban areas. The plant and animal communities associated with urban creeks offer a variety of resources which can enrich human life. The diversity of plant communities, th ...
Ecological Divergence and Reproductive Isolation in an Amazonian
... Professor Paul V.A. Fine, Chair Neotropical forests have the highest tree diversity on earth, with an estimated 22,000 species. In contrast temperate North America, Europe and Asia combined support only 1,166 tree species. In the western Amazon rainforest, complex patterns of edaphic heterogeneity h ...
... Professor Paul V.A. Fine, Chair Neotropical forests have the highest tree diversity on earth, with an estimated 22,000 species. In contrast temperate North America, Europe and Asia combined support only 1,166 tree species. In the western Amazon rainforest, complex patterns of edaphic heterogeneity h ...
More than a meal integrating nonfeeding interactions into food webs
... information provides some general examples for these functions func, but their exact shape will depend on the biology of the species. For trophic interactions, three types of functional responses have been defined (Holling 1959) – similar functions may be defined for nontrophic interactions but requ ...
... information provides some general examples for these functions func, but their exact shape will depend on the biology of the species. For trophic interactions, three types of functional responses have been defined (Holling 1959) – similar functions may be defined for nontrophic interactions but requ ...
Report No. 178 A review of wood ants (Hymenoptera: Formicidae) in
... Why make the effort to conserve wood ants? Apart from having intrinsic value in their own right, the importance of wood ants to the forest ecosystem is well known. They affect the distribution and abundance of other ants and many other ground-dwelling, underground and canopy species, harbour a wide ...
... Why make the effort to conserve wood ants? Apart from having intrinsic value in their own right, the importance of wood ants to the forest ecosystem is well known. They affect the distribution and abundance of other ants and many other ground-dwelling, underground and canopy species, harbour a wide ...
More than a meal integrating nonfeeding interactions into food webs
... information provides some general examples for these functions func, but their exact shape will depend on the biology of the species. For trophic interactions, three types of functional responses have been defined (Holling 1959) – similar functions may be defined for nontrophic interactions but requ ...
... information provides some general examples for these functions func, but their exact shape will depend on the biology of the species. For trophic interactions, three types of functional responses have been defined (Holling 1959) – similar functions may be defined for nontrophic interactions but requ ...
plant traits that influence ecosystem processes vary independently
... Abstract. Most predictions of plant species effects on ecosystems are based on single traits (e.g., litter chemistry) or suites of related traits (functional groups). However, recent studies demonstrate that predictions of species effects on ecosystems are improved by considering multiple traits. In ...
... Abstract. Most predictions of plant species effects on ecosystems are based on single traits (e.g., litter chemistry) or suites of related traits (functional groups). However, recent studies demonstrate that predictions of species effects on ecosystems are improved by considering multiple traits. In ...
Commenter 17
... According to the EA 342 douglas fir were cored in the Pilot Thompson project area, the average DBH was 20.3” and the average age 99 years (EA p.3-7). According to the marking guidelines for the sale “trees greater than 30” DBH should receive “particular attention” because “these size trees have the ...
... According to the EA 342 douglas fir were cored in the Pilot Thompson project area, the average DBH was 20.3” and the average age 99 years (EA p.3-7). According to the marking guidelines for the sale “trees greater than 30” DBH should receive “particular attention” because “these size trees have the ...
Enhancing management effectiveness of invasive
... ‘biocontrollers’ of invasive lionfish has been suggested but is contentious, with contrasting results recently published (Mumby et al., 2011; Bruno, 2013; Valdivia et al., 2014). Lionfish remains have been found in the stomachs of Nassau and tiger groupers (Maljković et al., 2008), and while Mumby et ...
... ‘biocontrollers’ of invasive lionfish has been suggested but is contentious, with contrasting results recently published (Mumby et al., 2011; Bruno, 2013; Valdivia et al., 2014). Lionfish remains have been found in the stomachs of Nassau and tiger groupers (Maljković et al., 2008), and while Mumby et ...
West Indian Manatee Carrying Capacity
... limited by forage than by warm water refugia, as previously believed and used as the basis of determination of OSP as well as CC. The most important and consistent message from both of these independent and diverse analyses of the manatee species is that there are upper bounds to manatee population, ...
... limited by forage than by warm water refugia, as previously believed and used as the basis of determination of OSP as well as CC. The most important and consistent message from both of these independent and diverse analyses of the manatee species is that there are upper bounds to manatee population, ...
Vermont`s Wildlife Action Plan
... Only two sub-populations of Northern Brook Lamprey are known to occur in Vermont, i.e. the Malletts CreekIndian Brook watershed (Langdon 2014). On a range-wide scale no major threats are known, but the species is vulnerable to local extirpation through indiscriminant use of fish toxicants (COSEWIC 2 ...
... Only two sub-populations of Northern Brook Lamprey are known to occur in Vermont, i.e. the Malletts CreekIndian Brook watershed (Langdon 2014). On a range-wide scale no major threats are known, but the species is vulnerable to local extirpation through indiscriminant use of fish toxicants (COSEWIC 2 ...
Genetic considerations in shellfish restoration
... shellfish resources in different environments, the use of shellfish restoration schemes as model, replicated, experimental systems to shed light on the ecology of the associated fauna and in the development of tools for monitoring natural and restored shellfish resources. It was also clear that much ...
... shellfish resources in different environments, the use of shellfish restoration schemes as model, replicated, experimental systems to shed light on the ecology of the associated fauna and in the development of tools for monitoring natural and restored shellfish resources. It was also clear that much ...
A review of the indicators for ecosystem structure and functioning
... or directions have been set for state indicators, and the links between pressure, state and response are known, then corresponding reference points, trajectories or directions can be set for pressure and response indicators. Thus, an understanding of the relationship between state and pressure and h ...
... or directions have been set for state indicators, and the links between pressure, state and response are known, then corresponding reference points, trajectories or directions can be set for pressure and response indicators. Thus, an understanding of the relationship between state and pressure and h ...
Economic Valuation of Biodiversity Conservation
... local people in rural regions (Bandara & Tisdell 2003); on the other hand, elephants attract tourism in protected areas (Wilkie & Carpenter 1999). The dual character of the elephant as both agricultural pest and valuable economic asset reflects the difficulty in classifying it as a useful or economi ...
... local people in rural regions (Bandara & Tisdell 2003); on the other hand, elephants attract tourism in protected areas (Wilkie & Carpenter 1999). The dual character of the elephant as both agricultural pest and valuable economic asset reflects the difficulty in classifying it as a useful or economi ...
The Caiman Trade - AP Environmental Science
... Over the course of five years, our whales (for meat)—to just about evteam found that, much to our surery endangered or threatened speprise, some previously known popucies. Almost the entire conservation lations of caimans were entirely effort for crocodilians is directed togone. Of the remainder, th ...
... Over the course of five years, our whales (for meat)—to just about evteam found that, much to our surery endangered or threatened speprise, some previously known popucies. Almost the entire conservation lations of caimans were entirely effort for crocodilians is directed togone. Of the remainder, th ...
4 Fragmentation and Edge Effects on Plant–Animal
... where the response of organisms at an edge can be explained strictly by the organism’s behaviour in the two habitat types (away from the edge). This type of boundary is defined as a ‘hard edge’ by Duelli et al. (1990; Fig. 4.1). The ecotonal effect is characterized by the presence of emergent proper ...
... where the response of organisms at an edge can be explained strictly by the organism’s behaviour in the two habitat types (away from the edge). This type of boundary is defined as a ‘hard edge’ by Duelli et al. (1990; Fig. 4.1). The ecotonal effect is characterized by the presence of emergent proper ...
impacts of invasive stream salmonids on native fish: using meta
... We further examined whether the magnitude of the alien impact depended on the study type. For this purpose, we divided the studies based on whether they were conducted in (i) laboratory channels, (ii) fish enclosures in natural streams or semi-natural outdoor channels, or (iii) natural streams (both ...
... We further examined whether the magnitude of the alien impact depended on the study type. For this purpose, we divided the studies based on whether they were conducted in (i) laboratory channels, (ii) fish enclosures in natural streams or semi-natural outdoor channels, or (iii) natural streams (both ...
Get PDF - Wiley Online Library
... temperature–size rules, however, and certain widespread and abundant taxa, such as diatoms, may be important exceptions. We tested the hypothesis that diatoms are smaller at warmer temperatures using a system of geothermally heated streams. There was no consistent relationship between size and tempe ...
... temperature–size rules, however, and certain widespread and abundant taxa, such as diatoms, may be important exceptions. We tested the hypothesis that diatoms are smaller at warmer temperatures using a system of geothermally heated streams. There was no consistent relationship between size and tempe ...
Nekton use of marsh-surface habitats in Louisiana (USA) deltaic salt
... mullet Mugil cephalus Linnaeus also use the marsh surface as small juveniles (Hettler 1989, Thomas et al. 1990, Rozas 1992a). In addition, this habitat is essential for forage species such as grass shnmp and killifishes, which are eaten by predatory fishery species, and therefore support fishery sto ...
... mullet Mugil cephalus Linnaeus also use the marsh surface as small juveniles (Hettler 1989, Thomas et al. 1990, Rozas 1992a). In addition, this habitat is essential for forage species such as grass shnmp and killifishes, which are eaten by predatory fishery species, and therefore support fishery sto ...
Food Webs and Graphs - SciTech Connect
... example, suppose your favorite food is a hamburger. The meat came from a cow, but a cow is not a primary producer—it can’t photosynthesize! But a cow eats grass, and grass is a primary producer. So, you eat cows, which eat grass. This is a simple food web with three players. If you were to remove th ...
... example, suppose your favorite food is a hamburger. The meat came from a cow, but a cow is not a primary producer—it can’t photosynthesize! But a cow eats grass, and grass is a primary producer. So, you eat cows, which eat grass. This is a simple food web with three players. If you were to remove th ...
shorebird management and conservation report
... undertaken within this discussion paper. A presence/absence approach was taken that highlights those habitats preferred by most species. The derived scores have been used to develop a shorebird biodiversity value index that was applied to the habitat map to develop a values map showing shorebirds’ p ...
... undertaken within this discussion paper. A presence/absence approach was taken that highlights those habitats preferred by most species. The derived scores have been used to develop a shorebird biodiversity value index that was applied to the habitat map to develop a values map showing shorebirds’ p ...
Coyotes, deer, and wildflowers: diverse evidence points to a trophic
... deer activity, and deer herbivory provide an unusual type of evidence for a trophic cascade. Activity of coyotes, which eat young mule deer (fawns), decreased with proximity to a remote biological field station, indicating that these predators avoided an area of high human activity. In contrast, act ...
... deer activity, and deer herbivory provide an unusual type of evidence for a trophic cascade. Activity of coyotes, which eat young mule deer (fawns), decreased with proximity to a remote biological field station, indicating that these predators avoided an area of high human activity. In contrast, act ...
effects on wetlands and waterfowl habitat study
... The existing wetlands, especially the water willow areas, are healthy and fully functioning due to a relatively stable water level. Wetlands are uncommon along Lake Tillery. The majority of the forested wetlands are associated with the upper part of the lake in the vicinity of the Uwharrie River. Th ...
... The existing wetlands, especially the water willow areas, are healthy and fully functioning due to a relatively stable water level. Wetlands are uncommon along Lake Tillery. The majority of the forested wetlands are associated with the upper part of the lake in the vicinity of the Uwharrie River. Th ...
Cohabitation promotes high diversity of clownfishes in the Coral
... Determining how multiple species manage to coexist is a central theme in ecology [1]. One explanation is that species differ in niche occupancy [2]. Through mechanisms such as niche differentiation [3], including social and behavioural specializations [4] and resource partitioning (e.g. space and ha ...
... Determining how multiple species manage to coexist is a central theme in ecology [1]. One explanation is that species differ in niche occupancy [2]. Through mechanisms such as niche differentiation [3], including social and behavioural specializations [4] and resource partitioning (e.g. space and ha ...
View PDF - CiteSeerX
... – we studied the environmental factors that may govern the abundance of these species in both the aquatic larval and terrestrial adult stages. Newts of the genus Triturus have a prolonged breeding period during which females usually wrap their eggs singly into leaves of aquatic vegetation (several h ...
... – we studied the environmental factors that may govern the abundance of these species in both the aquatic larval and terrestrial adult stages. Newts of the genus Triturus have a prolonged breeding period during which females usually wrap their eggs singly into leaves of aquatic vegetation (several h ...
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.