Use of the genus Artemia in ecotoxicity testing
... and 36 C permits the hatching of cysts from the bisexual species A. franciscana but not that of parthenogenetic species. Therefore, the presence of species with different reproduction strategies may be detected. Furthermore, according to Abatzopoulos et al. (1997), Artemia species can be distingui ...
... and 36 C permits the hatching of cysts from the bisexual species A. franciscana but not that of parthenogenetic species. Therefore, the presence of species with different reproduction strategies may be detected. Furthermore, according to Abatzopoulos et al. (1997), Artemia species can be distingui ...
Interim Management Plan for Arroyo Hondo Preserve
... The Preserve will be managed for the protection of natural and cultural resources, while providing opportunities for compatible public use, including outdoor education, recreation, and scientific research. To provide an initial framework for stewardship of the Preserve, an Interim Management Plan ha ...
... The Preserve will be managed for the protection of natural and cultural resources, while providing opportunities for compatible public use, including outdoor education, recreation, and scientific research. To provide an initial framework for stewardship of the Preserve, an Interim Management Plan ha ...
(PPT, 1.21MB)
... unit that includes all of the organisms (ie: the "community") in a given area interacting with the physical environment so that a flow of energy leads to clearly defined trophic structure, biotic diversity, and material cycles (i.e.: exchange of materials between living and nonliving parts) within t ...
... unit that includes all of the organisms (ie: the "community") in a given area interacting with the physical environment so that a flow of energy leads to clearly defined trophic structure, biotic diversity, and material cycles (i.e.: exchange of materials between living and nonliving parts) within t ...
Ola Na Papa i Malama Ia: A Practical Plan for the Technical and
... organizations, including federal, state, and county government, academia, the private sector and not-for-profit organizations including The Nature Conservancy of Hawai‘i. The Council works through its two committees of local volunteers to help restore and maintain Maui’s marine resources. The Clean ...
... organizations, including federal, state, and county government, academia, the private sector and not-for-profit organizations including The Nature Conservancy of Hawai‘i. The Council works through its two committees of local volunteers to help restore and maintain Maui’s marine resources. The Clean ...
6.4 Environmental Niche Analysis - Predicting potential occurrence
... scale environmental climate and biotic data, has lead to an increase in approaches to model the distribution of species (Soberon 2007). Species distribution models are one type of empirical model relating spatial observations of an organism to environmental predictor variables, using a variety of st ...
... scale environmental climate and biotic data, has lead to an increase in approaches to model the distribution of species (Soberon 2007). Species distribution models are one type of empirical model relating spatial observations of an organism to environmental predictor variables, using a variety of st ...
Peter A. Abrams 1 1 Publications of Peter A. Abrams April 2012 I
... Abrams, P. A. 1987. Alternative models of character displacement: II. Displacement when there is competition for a single resource. American Naturalist 130:271-282. Abrams, P. A. 1987. The functional responses of adaptive consumers of two resources. Theoretical Population Biology 32:262-288. Abrams, ...
... Abrams, P. A. 1987. Alternative models of character displacement: II. Displacement when there is competition for a single resource. American Naturalist 130:271-282. Abrams, P. A. 1987. The functional responses of adaptive consumers of two resources. Theoretical Population Biology 32:262-288. Abrams, ...
Contemporary Criticisms of the Received
... not to be confused with ethnocentrism. Aldo Leopold (1998, emphasis added), early in his career a warm supporter of the American-character rationale for wilderness preservation, expresses the racist undercurrent in this argument with his characteristic flair for elegant succinctness: “For three cent ...
... not to be confused with ethnocentrism. Aldo Leopold (1998, emphasis added), early in his career a warm supporter of the American-character rationale for wilderness preservation, expresses the racist undercurrent in this argument with his characteristic flair for elegant succinctness: “For three cent ...
Effects of stock grazing on biodiversity values in Temperate Native
... This review considers the impacts of stock grazing on biodiversity values in temperate grassy ecosystems in southern Australia. Its aim is to assist grazing management of temperate lowland native grasslands and grassy woodlands in areas of the Australian Capital Territory (ACT) where conservation is ...
... This review considers the impacts of stock grazing on biodiversity values in temperate grassy ecosystems in southern Australia. Its aim is to assist grazing management of temperate lowland native grasslands and grassy woodlands in areas of the Australian Capital Territory (ACT) where conservation is ...
Draft Reintroduction Plan for Bison at RMA-NWR
... tallgrass prairies farther east. Intense, but short-term grazing by bison and the disturbances caused by periodic fire maintained the plant community structure of the prairie. Grasses and annual forbs thrived where woody vegetation could not compete, although shrubs did occur on the site, sometimes ...
... tallgrass prairies farther east. Intense, but short-term grazing by bison and the disturbances caused by periodic fire maintained the plant community structure of the prairie. Grasses and annual forbs thrived where woody vegetation could not compete, although shrubs did occur on the site, sometimes ...
Scrub management for threatened and endangered species
... Natural scrub communities in Florida are biologically diverse ecosystems. They provide habitat for at least 23 TES, many of which are protected under the Endangered Species Act. Under some circumstances, it is desirable to maintain high-quality natural communities to provide habitat for multiple nat ...
... Natural scrub communities in Florida are biologically diverse ecosystems. They provide habitat for at least 23 TES, many of which are protected under the Endangered Species Act. Under some circumstances, it is desirable to maintain high-quality natural communities to provide habitat for multiple nat ...
Scientific Program
... not unlike other territories in the Americas, has received a diverse set of immigrants. The degree of diversity is however very high in Suriname, and highly visible: immigrants for Northern Asia first (the Indigenous or Amerindians), those from Europe and Africa second, then Indians, Indonesians, a ...
... not unlike other territories in the Americas, has received a diverse set of immigrants. The degree of diversity is however very high in Suriname, and highly visible: immigrants for Northern Asia first (the Indigenous or Amerindians), those from Europe and Africa second, then Indians, Indonesians, a ...
SPATIAL SYNCHRONY IN POPULATION DYNAMICS∗ Andrew
... processes, three mechanisms may cause synchrony: (a) dispersal among populations; (b) synchronous stochastic effects, often referred to as the “Moran effect”; and (c) trophic interactions with other species that are themselves either synchronized or mobile. As in many other ecological problems, link ...
... processes, three mechanisms may cause synchrony: (a) dispersal among populations; (b) synchronous stochastic effects, often referred to as the “Moran effect”; and (c) trophic interactions with other species that are themselves either synchronized or mobile. As in many other ecological problems, link ...
SPATIAL SYNCHRONY IN POPULATION DYNAMICS ∗ Andrew
... processes, three mechanisms may cause synchrony: (a) dispersal among populations; (b) synchronous stochastic effects, often referred to as the “Moran effect”; and (c) trophic interactions with other species that are themselves either synchronized or mobile. As in many other ecological problems, link ...
... processes, three mechanisms may cause synchrony: (a) dispersal among populations; (b) synchronous stochastic effects, often referred to as the “Moran effect”; and (c) trophic interactions with other species that are themselves either synchronized or mobile. As in many other ecological problems, link ...
Dispersal: a central trait in life history
... between wing dimorphism and life traits was quite heterogeneous. Only relationships with fecundity (flightoogenesis syndrome) appeared to be overall strong, and even then some insect orders (e.g. Coleoptera) consistently present the opposite of the “canonical” trade-off pattern. While wing developme ...
... between wing dimorphism and life traits was quite heterogeneous. Only relationships with fecundity (flightoogenesis syndrome) appeared to be overall strong, and even then some insect orders (e.g. Coleoptera) consistently present the opposite of the “canonical” trade-off pattern. While wing developme ...
Dispersal: a central trait in life history
... between wing dimorphism and life traits was quite heterogeneous. Only relationships with fecundity (flightoogenesis syndrome) appeared to be overall strong, and even then some insect orders (e.g. Coleoptera) consistently present the opposite of the “canonical” trade-off pattern. While wing developme ...
... between wing dimorphism and life traits was quite heterogeneous. Only relationships with fecundity (flightoogenesis syndrome) appeared to be overall strong, and even then some insect orders (e.g. Coleoptera) consistently present the opposite of the “canonical” trade-off pattern. While wing developme ...
Namoi Catchment Action Plan 2010–2020
... shocks and disturbances without crossing a threshold. Social-ecological systems are complex and are controlled by multiple variables; however, it is usually only a handful of variables that are the critical drivers of change in a system. Within each of these variables there could be a threshold that ...
... shocks and disturbances without crossing a threshold. Social-ecological systems are complex and are controlled by multiple variables; however, it is usually only a handful of variables that are the critical drivers of change in a system. Within each of these variables there could be a threshold that ...
Salt Marsh Litter and Detritivores
... et al. 2002). By definition members of the same guild that differ in the way they use available food sources cannot be considered redundant and may even have additive or synergistic effects on ecosystem functioning (Lawton et al. 1998; Jonsson and Malmqvist 2000; Duffy et al. 2001; Zimmer et al. 200 ...
... et al. 2002). By definition members of the same guild that differ in the way they use available food sources cannot be considered redundant and may even have additive or synergistic effects on ecosystem functioning (Lawton et al. 1998; Jonsson and Malmqvist 2000; Duffy et al. 2001; Zimmer et al. 200 ...
Document
... terms of differences in species assemblages as functions of abiotic controlling factors from local to circumpolar scales appears to be particularly applicable to Arctic tundra. In terms of ecosystem functions, and the biotic and abiotic processes that shape these functions, tundra ecosystems are no ...
... terms of differences in species assemblages as functions of abiotic controlling factors from local to circumpolar scales appears to be particularly applicable to Arctic tundra. In terms of ecosystem functions, and the biotic and abiotic processes that shape these functions, tundra ecosystems are no ...
Gopher Tortoise Facts
... 1. Gopher tortoises are a keystone species, meaning that many other species in their native ecosystem depend on them. 2. Gopher tortoises are a protected species throughout their range. They are federally protected west of the Mobile River. Their biggest threat is habitat loss. 3. Threats to gopher ...
... 1. Gopher tortoises are a keystone species, meaning that many other species in their native ecosystem depend on them. 2. Gopher tortoises are a protected species throughout their range. They are federally protected west of the Mobile River. Their biggest threat is habitat loss. 3. Threats to gopher ...
The conceptual models and management and community needs for
... To be completed. The Terrestrial Expert Monitoring Group (TEGM) gratefully acknowledges the invaluable contributions of international collaborators, managers, experts, institutions, governments, and Aboriginal community members during the planning, development, and preparation of the final CBMP-Terr ...
... To be completed. The Terrestrial Expert Monitoring Group (TEGM) gratefully acknowledges the invaluable contributions of international collaborators, managers, experts, institutions, governments, and Aboriginal community members during the planning, development, and preparation of the final CBMP-Terr ...
Thresholds in Habitat Supply: A Review of the Literature
... or “threshold” change that may have rapid, drastic effects on species or ecosystems. Ecological thresholds involve a change in the rate of response to ecosystem change; a critical value of an ecosystem property at which previously linear or unobserved change becomes a drastic transformation. Around ...
... or “threshold” change that may have rapid, drastic effects on species or ecosystems. Ecological thresholds involve a change in the rate of response to ecosystem change; a critical value of an ecosystem property at which previously linear or unobserved change becomes a drastic transformation. Around ...
Influence of nymphal Anax imperator (Odonata
... attention. Schmitz et al. (1997) demonstrated that nonlethal spiders caused an overall decrease in feeding rate (herbivory) and thus an increase in plant biomass. A behavioral trophic cascade is also possible if animals avoid a particular habitat while foraging or do not lay eggs in this habitat in ...
... attention. Schmitz et al. (1997) demonstrated that nonlethal spiders caused an overall decrease in feeding rate (herbivory) and thus an increase in plant biomass. A behavioral trophic cascade is also possible if animals avoid a particular habitat while foraging or do not lay eggs in this habitat in ...
Distribution and Habitat Associations of Spotted Ratfish (Hydrolagus
... continental shelf caused by commercial fishing and changes in temperature regimes. Conversely, Barnett (2008) found spotted ratfish abundance increased in Oregon and Washington but remained fairly constant in California between 1995 and 2007. The author attributes changes in abundance to climate sh ...
... continental shelf caused by commercial fishing and changes in temperature regimes. Conversely, Barnett (2008) found spotted ratfish abundance increased in Oregon and Washington but remained fairly constant in California between 1995 and 2007. The author attributes changes in abundance to climate sh ...
TEMG_plan_draft_semifinal_2013_02_15
... biological, chemical, and physical balance of the globe. Dramatic changes in regional climates, and increasing industrial development and other activities, now underway, are threatening Arctic biodiversity, the resilience of species, the potential for human use, and the overall integrity of northern ...
... biological, chemical, and physical balance of the globe. Dramatic changes in regional climates, and increasing industrial development and other activities, now underway, are threatening Arctic biodiversity, the resilience of species, the potential for human use, and the overall integrity of northern ...
Restoration ecology
Restoration ecology emerged as a separate field in ecology in the 1980s. It is the scientific study supporting the practice of ecological restoration, which is the practice of renewing and restoring degraded, damaged, or destroyed ecosystems and habitats in the environment by active human intervention and action. The term ""restoration ecology"" is therefore commonly used for the academic study of the process, whereas the term ""ecological restoration"" is commonly used for the actual project or process by restoration practitioners.