ClsI eEl eEl - Competitive Enterprise Institute
... The World Conservation Union (IUCN), "is that we do not know how much loss of what kinds of organisms is tolerable." The need for more information is clear. Even a few conservation biologists have begun to concede that the "ecosystem services" argument leaves much to be desired. For example, in ...
... The World Conservation Union (IUCN), "is that we do not know how much loss of what kinds of organisms is tolerable." The need for more information is clear. Even a few conservation biologists have begun to concede that the "ecosystem services" argument leaves much to be desired. For example, in ...
Seddon et al. 2014
... gained little traction (27). However, there is growing acknowledgment that conservation managers could take action to address climate-induced changes in species’ habitats where individuals of affected species are unable to naturally colonize new areas as habitat suitability shifts (28–30). Understan ...
... gained little traction (27). However, there is growing acknowledgment that conservation managers could take action to address climate-induced changes in species’ habitats where individuals of affected species are unable to naturally colonize new areas as habitat suitability shifts (28–30). Understan ...
Policy Brief - Worldwatch Institute
... overexploitation of species, invasive alien species, and climate change—and all of these are almost exclusively human-driven. The world’s oceans and forests are particularly threatened. Industrial fishing with trawls from large vessels causes extensive damage to both marine health and species biodiv ...
... overexploitation of species, invasive alien species, and climate change—and all of these are almost exclusively human-driven. The world’s oceans and forests are particularly threatened. Industrial fishing with trawls from large vessels causes extensive damage to both marine health and species biodiv ...
Causes of Mass Extinctions - With Special Reference to Vanishing
... characteristics and occurrences of algae in modern aquatic environments and observations from the fossil record propose that toxin-producing algae were present in the geologic past and were an important factor in Phanerozoic mass extinctions. They suggested that the large mass of organic material pr ...
... characteristics and occurrences of algae in modern aquatic environments and observations from the fossil record propose that toxin-producing algae were present in the geologic past and were an important factor in Phanerozoic mass extinctions. They suggested that the large mass of organic material pr ...
Introduction to Landscape ecology and matrix
... • Introduced patches are ones in which people have brought in nonnative plants or animals or rearranged native species. species Animals A i l moving i from f one area to another h can also bring in these nonnative elements. ...
... • Introduced patches are ones in which people have brought in nonnative plants or animals or rearranged native species. species Animals A i l moving i from f one area to another h can also bring in these nonnative elements. ...
Environmental Pressures: Human Activities That Affect
... Commons Attribution-Share Alike 3.0 Unported license and the terms of the GNU Free Documentation License, Version 1.2 or any later version. It is attributed to Wikipedia user SeanMack and the original version can be found here. ...
... Commons Attribution-Share Alike 3.0 Unported license and the terms of the GNU Free Documentation License, Version 1.2 or any later version. It is attributed to Wikipedia user SeanMack and the original version can be found here. ...
Habitat Asessment Factors Feb6_2015 FEMA R10 - STARR-Team
... velocity, and river bank conditions, and habitat forming processes (discussed in more detail on following pages). These variables are also discussed in the Floodplain Habitat Assessment and Mitigation – Regional Guidance for the Puget Sound Basin (FEMA 2013). It is important to note that the existin ...
... velocity, and river bank conditions, and habitat forming processes (discussed in more detail on following pages). These variables are also discussed in the Floodplain Habitat Assessment and Mitigation – Regional Guidance for the Puget Sound Basin (FEMA 2013). It is important to note that the existin ...
Habitat Use
... - Fine-scale pattern of use of resources and conditions by an individual (or social group) at particular locations within the home range • For example, use of certain plants but not others by a wildebeest at a feeding site ...
... - Fine-scale pattern of use of resources and conditions by an individual (or social group) at particular locations within the home range • For example, use of certain plants but not others by a wildebeest at a feeding site ...
Losing history: how extinctions prune features from the tree of life
... much greater than reported by Nee and May. If losses of PD do not differ greatly from random, emphasis on preserving the tree of life [56] might be misplaced, and conservation efforts might be better staying species-focused. Empirical data, however, tell a different story. At least in some clades, p ...
... much greater than reported by Nee and May. If losses of PD do not differ greatly from random, emphasis on preserving the tree of life [56] might be misplaced, and conservation efforts might be better staying species-focused. Empirical data, however, tell a different story. At least in some clades, p ...
Habitat subdivision causes changes in food web structure
... energy requirements) and diet specialization make species rare and susceptible to extinction; this suggestion is in agreement with modelling of food chains (Sterner et al. 1997), and omnivory (feeding on more than one species), which may also allow species at higher trophic levels to persist (McCann ...
... energy requirements) and diet specialization make species rare and susceptible to extinction; this suggestion is in agreement with modelling of food chains (Sterner et al. 1997), and omnivory (feeding on more than one species), which may also allow species at higher trophic levels to persist (McCann ...
Common Name (Scientific name)
... The life history of the Townsend’s big-eared bat centers on reproduction and meeting the energetic demands of a small insectivorous mammal. Its annual cycle includes an approximate 7 to 8 month period of peak activity in spring and summer when insects are most available and reproduction occurs. Preg ...
... The life history of the Townsend’s big-eared bat centers on reproduction and meeting the energetic demands of a small insectivorous mammal. Its annual cycle includes an approximate 7 to 8 month period of peak activity in spring and summer when insects are most available and reproduction occurs. Preg ...
modeling biodiversity dynamics in countryside landscapes
... extinction rates (Reid 1992, May et al. 1995, Pimm et al. 1995). We briefly present the classic theory and then modify it to account for the potential conservation value of countryside habitat, areas whose ecosystem properties and processes are strongly influenced by humanity (Daily et al. 2001). Whil ...
... extinction rates (Reid 1992, May et al. 1995, Pimm et al. 1995). We briefly present the classic theory and then modify it to account for the potential conservation value of countryside habitat, areas whose ecosystem properties and processes are strongly influenced by humanity (Daily et al. 2001). Whil ...
Predator-Dependent Species-Area Relationships
... factors such as the spatial scale of sampling methodology (Scheiner et al. 2000; Scheiner 2003, 2004), but important variation still exists even when methodology is controlled (e.g., Drakare et al. 2006). Biological factors that have been invoked to explain variation in z include habitat or ecosyste ...
... factors such as the spatial scale of sampling methodology (Scheiner et al. 2000; Scheiner 2003, 2004), but important variation still exists even when methodology is controlled (e.g., Drakare et al. 2006). Biological factors that have been invoked to explain variation in z include habitat or ecosyste ...
Losing history: how extinctions prune features from the tree of life
... much greater than reported by Nee and May. If losses of PD do not differ greatly from random, emphasis on preserving the tree of life [56] might be misplaced, and conservation efforts might be better staying species-focused. Empirical data, however, tell a different story. At least in some clades, p ...
... much greater than reported by Nee and May. If losses of PD do not differ greatly from random, emphasis on preserving the tree of life [56] might be misplaced, and conservation efforts might be better staying species-focused. Empirical data, however, tell a different story. At least in some clades, p ...
Species
... • The Russian Far East mountains house the last remaining tigers • Nearly became extinct due to hunting, poaching and habitat destruction • International conservation groups saved the species from extinction ...
... • The Russian Far East mountains house the last remaining tigers • Nearly became extinct due to hunting, poaching and habitat destruction • International conservation groups saved the species from extinction ...
- Island Biodiversity
... Comoros. H&W missed collections of the white-eye on Marianne in 1877 and 1892 (Lantz, Abbott), and Percival Wright’s on Praslin (Oustalet 1878, Skerrett et al. 2001), and the contemporary attestation of occurrence also on La Digue and possibly Silhouette. The birds thus survived longer than H&W repo ...
... Comoros. H&W missed collections of the white-eye on Marianne in 1877 and 1892 (Lantz, Abbott), and Percival Wright’s on Praslin (Oustalet 1878, Skerrett et al. 2001), and the contemporary attestation of occurrence also on La Digue and possibly Silhouette. The birds thus survived longer than H&W repo ...
Domestic Ferret
... Ferrets are illegal to keep as pets in California. The local environment could provide all the necessities for ferrets to establish viable populations if released by irresponsible pet owners. If this were to happen, ferrets would become an invasive species, which mean that they would negatively affe ...
... Ferrets are illegal to keep as pets in California. The local environment could provide all the necessities for ferrets to establish viable populations if released by irresponsible pet owners. If this were to happen, ferrets would become an invasive species, which mean that they would negatively affe ...
Modern lessons from ancient food webs
... maintained across different ecosystems over evolutionary time, there may be fundamental rules driving ecological interactions independent of species, habitat, or community. If some underlying mechanism guiding community structure exists, they might respond similarly to large perturbations. In this c ...
... maintained across different ecosystems over evolutionary time, there may be fundamental rules driving ecological interactions independent of species, habitat, or community. If some underlying mechanism guiding community structure exists, they might respond similarly to large perturbations. In this c ...
The measure of order and disorder in the distribution of species in
... back to its initial conditions and rerun the extinction process repeatedly. In a perfectly "cold" system each species present in the assemblage would go extinct in turn as each species falls below its minimum sustainable population size, and that order would not change no matter how many times the e ...
... back to its initial conditions and rerun the extinction process repeatedly. In a perfectly "cold" system each species present in the assemblage would go extinct in turn as each species falls below its minimum sustainable population size, and that order would not change no matter how many times the e ...
Critical Biodiversity
... compete for a niche, but the niche that makes it possible for s(3) to exist on site (i,j) is not the environment e(i,j); it is s(17). Higher on the chain another organism may occupy the niche created by the presence of s(3). Instantaneously at a particular site the species are organized in this hier ...
... compete for a niche, but the niche that makes it possible for s(3) to exist on site (i,j) is not the environment e(i,j); it is s(17). Higher on the chain another organism may occupy the niche created by the presence of s(3). Instantaneously at a particular site the species are organized in this hier ...
Organismal Biology/25A2-FosilRecrdGeologicTime
... • About 250 million years ago, all the land masses were joined into one supercontinent, Pangaea, with dramatic impacts on life on land and the sea. • Species that had evolved in isolation now competed. • The total amount of shoreline was reduced and shallow ...
... • About 250 million years ago, all the land masses were joined into one supercontinent, Pangaea, with dramatic impacts on life on land and the sea. • Species that had evolved in isolation now competed. • The total amount of shoreline was reduced and shallow ...
The Fossil Record and Geological Time
... would have blocked sunlight and severely disturbed the climate for several months. • Part of the evidence for the collision is the widespread presence of a thin layer of clay enriched with iridium, an element rare on Earth but common in meteorites and other extraterrestrial debris. • Recent research ...
... would have blocked sunlight and severely disturbed the climate for several months. • Part of the evidence for the collision is the widespread presence of a thin layer of clay enriched with iridium, an element rare on Earth but common in meteorites and other extraterrestrial debris. • Recent research ...
Chapter 15 Biodiversity and Conservation Biology
... purifying and detoxifying areas, moderating droughts, winds, and climate, renewing soils, pollinating plants, controlling pests, and maintaining genetic diversity. Additionally, biodiversity provides cultural and aesthetic benefits to people, and gives organisms the ability to adapt to changes in th ...
... purifying and detoxifying areas, moderating droughts, winds, and climate, renewing soils, pollinating plants, controlling pests, and maintaining genetic diversity. Additionally, biodiversity provides cultural and aesthetic benefits to people, and gives organisms the ability to adapt to changes in th ...
The Cache River Wetland: Are there differences in swamp rabbit
... rabbit habitat in Union and Johnson Counties (263.73 km2) compared to Pulaski and Alexander Counties (176.75 km2). High flows maintain ecosystem productivity and diversity ...
... rabbit habitat in Union and Johnson Counties (263.73 km2) compared to Pulaski and Alexander Counties (176.75 km2). High flows maintain ecosystem productivity and diversity ...
1091-Lec9Edge
... Use of density or presence/absence to assess habitat quality or decide what patches to protect assumes animals are ideal (have perfect knowledge) animals are free (not constrained) so density is correlated with rs and survival and ...
... Use of density or presence/absence to assess habitat quality or decide what patches to protect assumes animals are ideal (have perfect knowledge) animals are free (not constrained) so density is correlated with rs and survival and ...