Managing habitat for the eastern tiger salamander and other
... influence juvenile dispersal Traditionally calculated buffer zones may be inadequate for this species Fails to protect 20% of individuals in this study, however, incorporating a 50 m edge effect, only protects 62% May encompass unsuitable habitat and reduce availability of good habitat ...
... influence juvenile dispersal Traditionally calculated buffer zones may be inadequate for this species Fails to protect 20% of individuals in this study, however, incorporating a 50 m edge effect, only protects 62% May encompass unsuitable habitat and reduce availability of good habitat ...
here - Gerroa Environmental Protection Society
... Swamp has polluted Crooked River, at least 80 hectares of biologically important forests has been cleared in association with sand mining, approximately 10 hectares of biologically important forests were cleared for a Kiama Council tip and biologically important forests have been cleared and fragm ...
... Swamp has polluted Crooked River, at least 80 hectares of biologically important forests has been cleared in association with sand mining, approximately 10 hectares of biologically important forests were cleared for a Kiama Council tip and biologically important forests have been cleared and fragm ...
Theory of Habitat Selection
... it sings it song while flying, but for the meadow pipit it finishes its song on the ground • Both have similar requirements – both feed on the same type of organisms • Thus the tree pipit is excluded from the habitat of meadow pipit because it needs a perch to land after singing. In this way their b ...
... it sings it song while flying, but for the meadow pipit it finishes its song on the ground • Both have similar requirements – both feed on the same type of organisms • Thus the tree pipit is excluded from the habitat of meadow pipit because it needs a perch to land after singing. In this way their b ...
diversity in woody pioneer species after the 1997/98 fires in
... human interference has assumed the form of the destruction of huge areas of TRF by logging, fire and mining activities. As a result, these areas have been converted into tropical secondary forests (TSF) dominated by woody pioneers, where climax species are scarce or even completely absent, especiall ...
... human interference has assumed the form of the destruction of huge areas of TRF by logging, fire and mining activities. As a result, these areas have been converted into tropical secondary forests (TSF) dominated by woody pioneers, where climax species are scarce or even completely absent, especiall ...
Habitat use, selection and preference
... – linked to demography, not density or vegetative characteristics – Why not density? Animals can congregate in, or be forced into, areas where they fare poorly – Why not vegetative characteristics? Remember, a particular plant association may promote high fitness in one animal species but not ano ...
... – linked to demography, not density or vegetative characteristics – Why not density? Animals can congregate in, or be forced into, areas where they fare poorly – Why not vegetative characteristics? Remember, a particular plant association may promote high fitness in one animal species but not ano ...
Ecosystem-level consequences of invasions by native species as a
... example, that of the food web. The structure can be decomposed into two parts: (i) from a qualitative viewpoint, the structure corresponds to the role of each element in the system, which commonly refers to species composition (i.e., functional diversity) and redundancy. In the case of a trophic net ...
... example, that of the food web. The structure can be decomposed into two parts: (i) from a qualitative viewpoint, the structure corresponds to the role of each element in the system, which commonly refers to species composition (i.e., functional diversity) and redundancy. In the case of a trophic net ...
Action Plan for Scarlet Robin - Environment, Planning and
... woody weed control, planting, coarse woody debris placement, temporary grazing) that will improve habitat conditions for small, passerine birds, including P. boodang. ...
... woody weed control, planting, coarse woody debris placement, temporary grazing) that will improve habitat conditions for small, passerine birds, including P. boodang. ...
Top-down and bottom-up control of large herbivore populations: a
... may vary spatially and temporally [5, 6]. Moreover, human activities can potentially affect both topdown and bottom-up processes in terrestrial ecosystems. Humans are a keystone species that alters terrestrial ecosystem structure and composition through actions such as setting fires and livestock gr ...
... may vary spatially and temporally [5, 6]. Moreover, human activities can potentially affect both topdown and bottom-up processes in terrestrial ecosystems. Humans are a keystone species that alters terrestrial ecosystem structure and composition through actions such as setting fires and livestock gr ...
non-breeding season considerations for the conservation of
... to determine ways in which manipulations raise the density of local populations of target species. The shift to management of the diverse set of neotropical migratory birds (NTMBs), however, requires that we recognize that populations of these species are potentially limited on scales much larger th ...
... to determine ways in which manipulations raise the density of local populations of target species. The shift to management of the diverse set of neotropical migratory birds (NTMBs), however, requires that we recognize that populations of these species are potentially limited on scales much larger th ...
Biodiversity and ecosystem functioning: A mechanistic model
... in the respective cases of ‘‘redundant’’ and ‘‘complementary’’ species. Abiotic nutrient flux parameters have the same qualitative effect on maximum species richness, SM, in the two cases. The inflowing nutrient concentration, R0, and the throughflow rate, q, both contribute to an increase in maximu ...
... in the respective cases of ‘‘redundant’’ and ‘‘complementary’’ species. Abiotic nutrient flux parameters have the same qualitative effect on maximum species richness, SM, in the two cases. The inflowing nutrient concentration, R0, and the throughflow rate, q, both contribute to an increase in maximu ...
Managing for Threatened, Endangered, and Sensitive Species
... state listed or common species; thus it enhances biodiversity. For example, at aafb, Eggert’s sunflower was classified as a threatened species prior to its delisting; however, it was not identified as a focal target. It, along with high priority non-federally listed fauna and flora, are nested sub-t ...
... state listed or common species; thus it enhances biodiversity. For example, at aafb, Eggert’s sunflower was classified as a threatened species prior to its delisting; however, it was not identified as a focal target. It, along with high priority non-federally listed fauna and flora, are nested sub-t ...
Species at the Edge: The Case for Listing of "Peripheral" Species
... including “all native, wild species.” These programs do not exclude species at the edge of their range. The exclusion of peripheral taxa from legal protection and programs could result in a significant loss of Canada’s genetic resources. Vertebrate species often take the role of umbrella species, be ...
... including “all native, wild species.” These programs do not exclude species at the edge of their range. The exclusion of peripheral taxa from legal protection and programs could result in a significant loss of Canada’s genetic resources. Vertebrate species often take the role of umbrella species, be ...
The importance of biodiversity and sustainable agricultural practices
... Roads are a major threat to wildlife. It is important to leave areas free from ATV use, snowmobile trails and roads because vehicles (and livestock) can scare wildlife, disrupt their routines, and physically destroy their habitat. When planning access routes, ensure they are as far as possible from ...
... Roads are a major threat to wildlife. It is important to leave areas free from ATV use, snowmobile trails and roads because vehicles (and livestock) can scare wildlife, disrupt their routines, and physically destroy their habitat. When planning access routes, ensure they are as far as possible from ...
Chapter 22: Humans and the Environment
... • Describe major consequences of air pollution. • Relate air pollution to effects on global climate. • Describe how chemical pollutants may undergo the process of biological magnification. • Identify the primary causes of modern extinctions. • Explain why extinctions and ecosystem disruption are of ...
... • Describe major consequences of air pollution. • Relate air pollution to effects on global climate. • Describe how chemical pollutants may undergo the process of biological magnification. • Identify the primary causes of modern extinctions. • Explain why extinctions and ecosystem disruption are of ...
Biodiversity and ecosystem functioning: It is time for dispersal
... species pool into an abandoned hay field was accompanied by increases in biodiversity and local plant production across the natural productivity gradient. In this case, the diversity of the available propagule pool constrained ecosystem productivity by determining the availability of key species, an ...
... species pool into an abandoned hay field was accompanied by increases in biodiversity and local plant production across the natural productivity gradient. In this case, the diversity of the available propagule pool constrained ecosystem productivity by determining the availability of key species, an ...
Community Ecology: Is It Time to Move On?
... of them. Threatened Species and Communities The red-cockaded woodpecker (Picoides borealis) was one of the first species listed under the Endangered Species Act and has been a persistent source of conflict among the forest industry, the federal government, and conservationists. Historically, its dec ...
... of them. Threatened Species and Communities The red-cockaded woodpecker (Picoides borealis) was one of the first species listed under the Endangered Species Act and has been a persistent source of conflict among the forest industry, the federal government, and conservationists. Historically, its dec ...
Preview Sample 2
... 12. In the Ecotron experiments of Shahid Naeem comparing species diversity and ecosystem function, it was found that a larger ground cover also meant A. higher nutrient uptake by animals in the system. B. a larger plant biomass and greater community productivity. C. more individual plants from fewer ...
... 12. In the Ecotron experiments of Shahid Naeem comparing species diversity and ecosystem function, it was found that a larger ground cover also meant A. higher nutrient uptake by animals in the system. B. a larger plant biomass and greater community productivity. C. more individual plants from fewer ...
Name Date Period _____ Invasive Species Questions Questions: An
... century. This extinction caused a wholescale transformation of the Eastern deciduous forest ecosystem, which was dominated by American chestnut. The loss of chestnuts was a disaster for many animals that were highly adapted to live in forests dominated by this tree species. For example, ten moth spe ...
... century. This extinction caused a wholescale transformation of the Eastern deciduous forest ecosystem, which was dominated by American chestnut. The loss of chestnuts was a disaster for many animals that were highly adapted to live in forests dominated by this tree species. For example, ten moth spe ...
EXECUTIVE SUMMARY
... Threats to the Northern Riffleshell, Snuffbox, Round Pigtoe, Mudpuppy Mussel and Rayed Bean are many and varied. The main reason for the declines in lake populations, including the Lake St. Clair and Lake Erie populations, is the presence of the exotic zebra mussel (Dreissena polymorpha). Zebra muss ...
... Threats to the Northern Riffleshell, Snuffbox, Round Pigtoe, Mudpuppy Mussel and Rayed Bean are many and varied. The main reason for the declines in lake populations, including the Lake St. Clair and Lake Erie populations, is the presence of the exotic zebra mussel (Dreissena polymorpha). Zebra muss ...
Reconciliation ecology
Reconciliation ecology is the branch of ecology which studies ways to encourage biodiversity in human-dominated ecosystems. Michael Rosenzweig first articulated the concept in his book Win-Win Ecology, based on the theory that there is not enough area for all of earth’s biodiversity to be saved within designated nature preserves. Therefore, humans should increase biodiversity in human-dominated landscapes. By managing for biodiversity in ways that do not decrease human utility of the system, it is a ""win-win"" situation for both human use and native biodiversity. The science is based in the ecological foundation of human land-use trends and species-area relationships. It has many benefits beyond protection of biodiversity, and there are numerous examples of it around the globe. Aspects of reconciliation ecology can already be found in management legislation, but there are challenges in both public acceptance and ecological success of reconciliation attempts.