View/Open
... Valuing the nonmarket impacts can be challenging. In this regard, economists are employing such tools as dynamic optimization and ex ante simulation analyses to assist decision makers (Evans, Spreen, & Knapp, 2002). Use is also being made of methods such as “contingent valuation” and “willingness-to ...
... Valuing the nonmarket impacts can be challenging. In this regard, economists are employing such tools as dynamic optimization and ex ante simulation analyses to assist decision makers (Evans, Spreen, & Knapp, 2002). Use is also being made of methods such as “contingent valuation” and “willingness-to ...
4010 Northern Atlantic wet heaths with Erica tetralix
... Wet heath is a naturally occurring community, having been formed over millions of years, due, in part, to the interactions of abiotic factors such as climate and soil conditions, competition between species, and possibly also as a consequence of grazing from large herbivores (Tubbs 2001, Luxmoore & ...
... Wet heath is a naturally occurring community, having been formed over millions of years, due, in part, to the interactions of abiotic factors such as climate and soil conditions, competition between species, and possibly also as a consequence of grazing from large herbivores (Tubbs 2001, Luxmoore & ...
THE Biosphere Student Copy
... After research, each group will give the class their information to write in the chart. First, each group will give a 1 minute overview of their biome. Students will complete a gallery crawl and silent discussion while roving around the room filling in their charts. Glue this chart on the right side ...
... After research, each group will give the class their information to write in the chart. First, each group will give a 1 minute overview of their biome. Students will complete a gallery crawl and silent discussion while roving around the room filling in their charts. Glue this chart on the right side ...
407 terrestrial activity patterns of wild cats from camera
... overlapped with leopard cats at night (Fig. 3). There were multiple peaks of overlap with clouded leopards during the night and daytime (Fig. 3). Fifty-two percent of Asiatic golden cat photo captures were from the period 1900–0500 hours in an unprotected secondary dipterocarp forest where clouded l ...
... overlapped with leopard cats at night (Fig. 3). There were multiple peaks of overlap with clouded leopards during the night and daytime (Fig. 3). Fifty-two percent of Asiatic golden cat photo captures were from the period 1900–0500 hours in an unprotected secondary dipterocarp forest where clouded l ...
ecosystem - Cloudfront.net
... competition, predation, and various forms of symbiosis, can powerfully affect an ecosystem ...
... competition, predation, and various forms of symbiosis, can powerfully affect an ecosystem ...
Effects of disturbance by Siberian marmots (Marmota sibirica) on
... the on-colony plot at the coarse scale would be explained by the inclusion of both disturbed and undisturbed patches in each measurement unit. Indeed, the fine mosaic structure of the various heterogeneous areas at a fine scale in the on-colony plot supports this hypothesis (Figure 2). Van Staalduin ...
... the on-colony plot at the coarse scale would be explained by the inclusion of both disturbed and undisturbed patches in each measurement unit. Indeed, the fine mosaic structure of the various heterogeneous areas at a fine scale in the on-colony plot supports this hypothesis (Figure 2). Van Staalduin ...
View Coskata-Coatue management plan
... the U.S. Fish and Wildlife Service and Coatue and the Haulover, owned and managed by the Nantucket Conservation Foundation. These three refuges form a protected complex of over 1,600 acres. In addition, the U. S. Coast Guard owns the Great Point lighthouse. Due to the high ecological value of the re ...
... the U.S. Fish and Wildlife Service and Coatue and the Haulover, owned and managed by the Nantucket Conservation Foundation. These three refuges form a protected complex of over 1,600 acres. In addition, the U. S. Coast Guard owns the Great Point lighthouse. Due to the high ecological value of the re ...
Overgrazing - IDC Technologies
... To complicate the understanding of overgrazing are the complexities of seasonal variation of plant productivity, especially in landscapes with high variations in seasonal precipitation. In the case of certain North American temporate grasslands, overgrazing can be seen by wild ungulates, where top-l ...
... To complicate the understanding of overgrazing are the complexities of seasonal variation of plant productivity, especially in landscapes with high variations in seasonal precipitation. In the case of certain North American temporate grasslands, overgrazing can be seen by wild ungulates, where top-l ...
Natural Woking Strategy FINAL APRIL 2016 VERSION 1.0
... including to our own health and well-being. Ensuring biodiversity security and protection for the benefit of future generations are also essential. Natural Woking is another piece in the jigsaw setting out the Council’s strategic direction for a sustainable Woking. It is long term in its outlook and ...
... including to our own health and well-being. Ensuring biodiversity security and protection for the benefit of future generations are also essential. Natural Woking is another piece in the jigsaw setting out the Council’s strategic direction for a sustainable Woking. It is long term in its outlook and ...
4.10 - City of Chowchilla
... Prior to development, the natural vegetation within the vicinity of the City of Chowchilla was characterized by vast stretches of savanna traversed by the riparian stands of the Chowchilla River. The range of natural vegetation communities has been significantly reduced from historic levels as a res ...
... Prior to development, the natural vegetation within the vicinity of the City of Chowchilla was characterized by vast stretches of savanna traversed by the riparian stands of the Chowchilla River. The range of natural vegetation communities has been significantly reduced from historic levels as a res ...
harmful nonindigenous species
... Many nonindigenous animal species have become established in Florida's aquatic systems: 83 fish, at least 26 insects since 1970, 2 amphibians, 3 birds, 1 mammal, 1 reptile, 5 mollusks, 1 crustacean, and an unknown number of pathogens (McCann et al. 1995). Many nonindigenous terrestrial animals, part ...
... Many nonindigenous animal species have become established in Florida's aquatic systems: 83 fish, at least 26 insects since 1970, 2 amphibians, 3 birds, 1 mammal, 1 reptile, 5 mollusks, 1 crustacean, and an unknown number of pathogens (McCann et al. 1995). Many nonindigenous terrestrial animals, part ...
Species extinctions in food webs – local and regional processes Anna Eklöf
... Loss of biodiversity is one of the most severe threats to the ecosystems of the world. The major causes behind the high population and species extinction rates are anthropogenic activities such as overharvesting of natural populations, pollution, climate change and destruction and fragmentation of n ...
... Loss of biodiversity is one of the most severe threats to the ecosystems of the world. The major causes behind the high population and species extinction rates are anthropogenic activities such as overharvesting of natural populations, pollution, climate change and destruction and fragmentation of n ...
Strong density- and diversity-related effects help to maintain tree
... actual correlations more accurately than if the difference between the actual correlations and zero were used. If the observed correlation was larger or smaller than 95% of the shuffled correlations, it was taken to be significant at the 0.05 level; if larger or smaller than 99% of the shuffled corr ...
... actual correlations more accurately than if the difference between the actual correlations and zero were used. If the observed correlation was larger or smaller than 95% of the shuffled correlations, it was taken to be significant at the 0.05 level; if larger or smaller than 99% of the shuffled corr ...
Dynamics of transposable elements: towards a community ecology
... interactions with their environment. TE copies belonging to the same family or sub-family are thus considered to constitute one TE ‘species’ (Table 1). From the ecological niche concept (Box 2), the niche for each TE species (its ‘genomic niche’) can be inferred both from its ‘limiting factors’ and ...
... interactions with their environment. TE copies belonging to the same family or sub-family are thus considered to constitute one TE ‘species’ (Table 1). From the ecological niche concept (Box 2), the niche for each TE species (its ‘genomic niche’) can be inferred both from its ‘limiting factors’ and ...
Frogs of the ACT Region
... species, such as the Common Eastern Froglet, may have completely different markings, suggesting they are two different species. Frog calls are one of the most reliable identification methods. Frog calls are unique for a species, so each of the different species from our region can be identified from ...
... species, such as the Common Eastern Froglet, may have completely different markings, suggesting they are two different species. Frog calls are one of the most reliable identification methods. Frog calls are unique for a species, so each of the different species from our region can be identified from ...
View or download: Abstract and introduction
... Donnelly, 1999; Balazs, 1978a) although a wider variety of prey species have been identified in various foraging locations. For centuries, humans have harvested hawksbill eggs, meat, and shells (Meylan, 1999). Patterned scutes that overlap on a hawksbill carapace have historically been used as “tort ...
... Donnelly, 1999; Balazs, 1978a) although a wider variety of prey species have been identified in various foraging locations. For centuries, humans have harvested hawksbill eggs, meat, and shells (Meylan, 1999). Patterned scutes that overlap on a hawksbill carapace have historically been used as “tort ...
Floristics and Distribution Patterns of Lichens and Bryophytes in
... Microbiotic crusts, also called cryptogamic, cryptobiotic, microphytic, biologic, and microfloral crusts, are an important component of the biodiversity and ecology of arid and semiarid ecosystems. Unfortunately, they are also often overlooked in ecological studies and vegetation inventories. Microb ...
... Microbiotic crusts, also called cryptogamic, cryptobiotic, microphytic, biologic, and microfloral crusts, are an important component of the biodiversity and ecology of arid and semiarid ecosystems. Unfortunately, they are also often overlooked in ecological studies and vegetation inventories. Microb ...
Population size and the risk of local extinction: empirical evidence
... There are several possible explanations for the observed relationship. First, there could have been a general deterministic decline in population sizes in the study area due to habitat deterioration. For a given decline, small populations are likely to become sooner extinct than large ones (Thomas 1 ...
... There are several possible explanations for the observed relationship. First, there could have been a general deterministic decline in population sizes in the study area due to habitat deterioration. For a given decline, small populations are likely to become sooner extinct than large ones (Thomas 1 ...
The Coral Reef Biome
... Coral reefs are among the most productive and biologically diverse ecosystems on Earth ...
... Coral reefs are among the most productive and biologically diverse ecosystems on Earth ...
Rocky Mountains - National Wildlife Federation
... Nectaring data and observations, background information, and other contributions to this publication were taken from the published literature and generously provided by multiple researchers, gardeners, partners, and biologists. For the full list of data sources, please visit our website: www.xerces. ...
... Nectaring data and observations, background information, and other contributions to this publication were taken from the published literature and generously provided by multiple researchers, gardeners, partners, and biologists. For the full list of data sources, please visit our website: www.xerces. ...
Diversity and Productivity in a Long-Term Grassland Experiment David Tilman,
... We tested the sampling hypothesis that the most productive species determined the effects of diversity (6, 9, 17) by retaining in analyses of year 2000 results only plots containing at least one of the nine species with the highest monoculture total biomass in 2000. Total biomass remained significan ...
... We tested the sampling hypothesis that the most productive species determined the effects of diversity (6, 9, 17) by retaining in analyses of year 2000 results only plots containing at least one of the nine species with the highest monoculture total biomass in 2000. Total biomass remained significan ...
Pigs - Molonglo Catchment Group
... most of the pigs are coming down through the Tinderrys: “They tend to stay up in the higher country during the day and hang about water, but during the night they make their way to the lower areas and cause unbelievable damage” he said. In a concerted effort to control the pig numbers on his propert ...
... most of the pigs are coming down through the Tinderrys: “They tend to stay up in the higher country during the day and hang about water, but during the night they make their way to the lower areas and cause unbelievable damage” he said. In a concerted effort to control the pig numbers on his propert ...
IMMATURE STAGES OF AcTINOTE zIkANI
... The immature stages of A. zikani are in most respects quite similar in morphology and behavior to those described of other species of Actinote (Francini 1989, 1992; Paluch et al. 1999, 2001; Freitas et al. 2009a, 2009b, 2010; Francini & Freitas 2010). Eggs are laid in large clusters which are larger ...
... The immature stages of A. zikani are in most respects quite similar in morphology and behavior to those described of other species of Actinote (Francini 1989, 1992; Paluch et al. 1999, 2001; Freitas et al. 2009a, 2009b, 2010; Francini & Freitas 2010). Eggs are laid in large clusters which are larger ...
Blanding`s Turtle Fast Facts - The shape of a
... and hibernating. As these diverse habitats disappear it has a big impact on their population. Blanding’s turtles are primarily an aquatic species but are known to travel over large distances on dry land when searching for nesting sites. During the spring and summer Blanding’s turtles prefer shallow, ...
... and hibernating. As these diverse habitats disappear it has a big impact on their population. Blanding’s turtles are primarily an aquatic species but are known to travel over large distances on dry land when searching for nesting sites. During the spring and summer Blanding’s turtles prefer shallow, ...
Section 1: What Is an Ecosystem?
... • The variety of organisms in a given area is called biodiversity. • Physical factors can have a big influence on biodiversity. High or low temperatures, or limited food or water can lower biodiversity. • Ecosystems with high biodiversity are often more able to resist damage. ...
... • The variety of organisms in a given area is called biodiversity. • Physical factors can have a big influence on biodiversity. High or low temperatures, or limited food or water can lower biodiversity. • Ecosystems with high biodiversity are often more able to resist damage. ...
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.