Ecology of a sympatric pair of coregonid fish: Species interactions
... new or underexploited resources (Schluter evo- ...
... new or underexploited resources (Schluter evo- ...
Distance from Edge Determines Fruit
... communities derives largely from study of vertebrate species, especially birds and their nest predators (e.g., see references in Ries et al. 2004). Much less is known about the impact of edges on arthropod communities even though arthropods are superlative ecological indicators because of their enor ...
... communities derives largely from study of vertebrate species, especially birds and their nest predators (e.g., see references in Ries et al. 2004). Much less is known about the impact of edges on arthropod communities even though arthropods are superlative ecological indicators because of their enor ...
An allometric approach to quantify the extinction vulnerability of
... limited by the availability of species-specific input data pertaining to life-history characteristics and population dynamics. This lack of data hampers global biodiversity assessments and conservation planning. Here, we developed a new framework that systematically quantifies extinction risk base ...
... limited by the availability of species-specific input data pertaining to life-history characteristics and population dynamics. This lack of data hampers global biodiversity assessments and conservation planning. Here, we developed a new framework that systematically quantifies extinction risk base ...
Full text in pdf format
... 1985, Gaines & Roughgarden 1985). For the past several decades, much ecological work on benthic community structure has stressed the significance of postsettlement factors such as competition, predation and physical disturbance (Connell 1961a, b , Dayton 1971, Levin & Paine 1974, Paine 1974). The la ...
... 1985, Gaines & Roughgarden 1985). For the past several decades, much ecological work on benthic community structure has stressed the significance of postsettlement factors such as competition, predation and physical disturbance (Connell 1961a, b , Dayton 1971, Levin & Paine 1974, Paine 1974). The la ...
Open Lands in a New England Town, Lincoln, MA: History, Ecology
... the regeneration of forests, as well as the disappearance of once-abundant hayfields, pastures, and shrublands. The historical stone walls and old barns marks its farming legacy. During the heyday of agriculture in the 1850s, the town of Lincoln reached 90% of open land coverage (Town of Lincoln, 20 ...
... the regeneration of forests, as well as the disappearance of once-abundant hayfields, pastures, and shrublands. The historical stone walls and old barns marks its farming legacy. During the heyday of agriculture in the 1850s, the town of Lincoln reached 90% of open land coverage (Town of Lincoln, 20 ...
Advisory Body Evaluation (IUCN)
... grassland biome that is currently poorly represented on the World Heritage List. No other steppe reserves of comparable size to Saryarka exist in Kazakhstan or elsewhere in the “Western Steppes”. The few reserves that do include substantial areas of natural steppe, including the larger Uvs Nuur Basi ...
... grassland biome that is currently poorly represented on the World Heritage List. No other steppe reserves of comparable size to Saryarka exist in Kazakhstan or elsewhere in the “Western Steppes”. The few reserves that do include substantial areas of natural steppe, including the larger Uvs Nuur Basi ...
Management Plan for Yukon Amphibians
... environmental assessments and general habitat management. Landscape-level land-use planning will benefit amphibians by considering the need for habitat connectivity. Currently there are few breeding sites known. It is important to document breeding habitats within known ranges, particularly for the ...
... environmental assessments and general habitat management. Landscape-level land-use planning will benefit amphibians by considering the need for habitat connectivity. Currently there are few breeding sites known. It is important to document breeding habitats within known ranges, particularly for the ...
Lobel et al.vp - Biodiversität, Evolution und Ökologie der Pflanzen
... other limestone in northern Europe, the Ordovician limestone on Öland is hard with horizontal layers (KRAHULEC et al. 1986, STERNER & LUNDQVIST 1986). In some places these soils are poorly drained and thus often strongly affected by frost in winter. Glacifluvial deposits form sandy soils along the Ö ...
... other limestone in northern Europe, the Ordovician limestone on Öland is hard with horizontal layers (KRAHULEC et al. 1986, STERNER & LUNDQVIST 1986). In some places these soils are poorly drained and thus often strongly affected by frost in winter. Glacifluvial deposits form sandy soils along the Ö ...
Guidelines for marine ranching and stock enhancement: Draft
... monitoring and enforcement issues related to access, quotas, size at harvest, etc. An enforcement risk assessment and plan should be provided by the applicant who will take primary responsibility for enforcement. Prior to implementation, the compliance enforcement plan should bc finalised in consult ...
... monitoring and enforcement issues related to access, quotas, size at harvest, etc. An enforcement risk assessment and plan should be provided by the applicant who will take primary responsibility for enforcement. Prior to implementation, the compliance enforcement plan should bc finalised in consult ...
Biotic and abiotic components - Pearson Schools and FE Colleges
... by counting the numbers of organisms in an ecosystem and constructing a pyramid. Quantitative data for each trophic level are drawn to scale as horizontal bars arranged symmetrically around a central axis (Figure 2.4a). Sometimes, rather than counting every individual in a trophic level, limited col ...
... by counting the numbers of organisms in an ecosystem and constructing a pyramid. Quantitative data for each trophic level are drawn to scale as horizontal bars arranged symmetrically around a central axis (Figure 2.4a). Sometimes, rather than counting every individual in a trophic level, limited col ...
Environmental Systems and Societies Chapter 2
... by counting the numbers of organisms in an ecosystem and constructing a pyramid. Quantitative data for each trophic level are drawn to scale as horizontal bars arranged symmetrically around a central axis (Figure 2.4a). Sometimes, rather than counting every individual in a trophic level, limited col ...
... by counting the numbers of organisms in an ecosystem and constructing a pyramid. Quantitative data for each trophic level are drawn to scale as horizontal bars arranged symmetrically around a central axis (Figure 2.4a). Sometimes, rather than counting every individual in a trophic level, limited col ...
Modeling Food-Web Dynamics: Complexity
... there is no comfortable theorem assuring that increasing diversity and complexity beget enhanced community stability; rather, as a mathematical generality, the opposite is true. The task, therefore, is to elucidate the devious strategies which make for stability in enduring natural systems” (p. 174, ...
... there is no comfortable theorem assuring that increasing diversity and complexity beget enhanced community stability; rather, as a mathematical generality, the opposite is true. The task, therefore, is to elucidate the devious strategies which make for stability in enduring natural systems” (p. 174, ...
DISPERSAL OF LIVING ORGANISMS INTO AQUATIC ECOSYSTEMS
... Shelton and Smitherman (1984) noted, "For whatever purpose an exotic fish is used, escape is virtually inevitable; thus, this eventuality should be considered." Welcomme (1988) added, "Species originally introduced for aquaculture eventually escape from the confinement of their ponds often but not a ...
... Shelton and Smitherman (1984) noted, "For whatever purpose an exotic fish is used, escape is virtually inevitable; thus, this eventuality should be considered." Welcomme (1988) added, "Species originally introduced for aquaculture eventually escape from the confinement of their ponds often but not a ...
Apparent competition and insect community structure: towards a
... Quantitative food webs In order to understand the potential for indirect effects to structure communities of herbivorous insects and their natural enemies, it is necessary to have some means of describing the community, ideally in a manner that allows comparison across systems. Food webs are an obvi ...
... Quantitative food webs In order to understand the potential for indirect effects to structure communities of herbivorous insects and their natural enemies, it is necessary to have some means of describing the community, ideally in a manner that allows comparison across systems. Food webs are an obvi ...
View plan for Opaelua Management Unit
... life/dormancy and life cycle information is important in determining when eradication may be reached; much of this information needs to be researched and parameters for determining eradication defined. NRS will compile this information for each ICA species. The table below summarizes target invasive ...
... life/dormancy and life cycle information is important in determining when eradication may be reached; much of this information needs to be researched and parameters for determining eradication defined. NRS will compile this information for each ICA species. The table below summarizes target invasive ...
Phylogenetic diversity of plants alters the effect of species
... Scherber et al., 2010a). Insect herbivore damage is a useful reflection of the activities of insect herbivores in plant communities, as well as a phenomenon of interest in and of itself, with implications for the health of a plant community. There are some clear theoretical predictions about the eff ...
... Scherber et al., 2010a). Insect herbivore damage is a useful reflection of the activities of insect herbivores in plant communities, as well as a phenomenon of interest in and of itself, with implications for the health of a plant community. There are some clear theoretical predictions about the eff ...
hierarchical analysis of forest bird species
... the effects of environmental factors at multiple levels on species distribution and abundance. Hierarchical methods that explicitly separate the independent and confounded influences of environmental variation across several levels of organization are powerful tools for this task. Our study used a h ...
... the effects of environmental factors at multiple levels on species distribution and abundance. Hierarchical methods that explicitly separate the independent and confounded influences of environmental variation across several levels of organization are powerful tools for this task. Our study used a h ...
measuring seed dispersal - (CRSSA), Rutgers University
... Forested ecosystems have been commonly used to study LDD. Generally, it is predicted that a change in the disturbance regime that increases the number of patches (and light and nutrient availability) can increase not only the density of seedlings, but also the local range of a population. Seeds prod ...
... Forested ecosystems have been commonly used to study LDD. Generally, it is predicted that a change in the disturbance regime that increases the number of patches (and light and nutrient availability) can increase not only the density of seedlings, but also the local range of a population. Seeds prod ...
Montana Cooperative Wildlife Research Unit Coordinating
... Habitat selection is a major influence on populations. Determining how environmental factors influence habitat selection is central for management of wild populations, particularly for species of concern. Therefore, understanding which, and how, environmental factors interact to influence habitat se ...
... Habitat selection is a major influence on populations. Determining how environmental factors influence habitat selection is central for management of wild populations, particularly for species of concern. Therefore, understanding which, and how, environmental factors interact to influence habitat se ...
Important Habitats in the Lower Casco Bay Watershed
... Pownal, South Portland, West Bath, Westbrook, and Yarmouth). To insure that habitats near the outer boundaries of these towns were adequately assessed, we appended a one mile wide strip of neighboring land and water to the study area (Figure 1). In accordance with the focus of the National Estuary P ...
... Pownal, South Portland, West Bath, Westbrook, and Yarmouth). To insure that habitats near the outer boundaries of these towns were adequately assessed, we appended a one mile wide strip of neighboring land and water to the study area (Figure 1). In accordance with the focus of the National Estuary P ...
ORIGIN, BIOGEOGRAPHICAL MIGRATIONS AND
... It also fails to acknowledge humans as a component of the ecosystem. Historically, the species composition of most plant communities has been a continuous, dynamic process of transitional diversification and recovery. It is likely the natural distribution of plant communities still would be differen ...
... It also fails to acknowledge humans as a component of the ecosystem. Historically, the species composition of most plant communities has been a continuous, dynamic process of transitional diversification and recovery. It is likely the natural distribution of plant communities still would be differen ...
Hypotheses on the role of the protistan rare biosphere in a changing
... microbial assemblages is depicted diagrammatically in Fig. 2. A hypothetical microbial assemblage displaying a typical rank abundance curve (Panel 1) and exposed to changes in environmental conditions leads to a shift in the selective forces acting on the microbial taxa, resulting in positive net po ...
... microbial assemblages is depicted diagrammatically in Fig. 2. A hypothetical microbial assemblage displaying a typical rank abundance curve (Panel 1) and exposed to changes in environmental conditions leads to a shift in the selective forces acting on the microbial taxa, resulting in positive net po ...
PDF
... Wildlife Conservation is critical to adequately protecting wildlife species and their habitats. Using GIS technology, LEPS has mapped in detail Langley’s land cover habitat and developed an interactive database on the 264 vertebrate species that occur in Langley. LEPS works closely with the Town ...
... Wildlife Conservation is critical to adequately protecting wildlife species and their habitats. Using GIS technology, LEPS has mapped in detail Langley’s land cover habitat and developed an interactive database on the 264 vertebrate species that occur in Langley. LEPS works closely with the Town ...
Ecological Risk Assessment of Genetically Modified Higher Plants
... needs for ecological risk assessment of genetically modified higher plants (GMHP). It is the intention of the authors to stimulate further discussion of what data are needed in order to conduct a proper ecological risk assessment of GM plants when application for placing on the market is made. It is ...
... needs for ecological risk assessment of genetically modified higher plants (GMHP). It is the intention of the authors to stimulate further discussion of what data are needed in order to conduct a proper ecological risk assessment of GM plants when application for placing on the market is made. It is ...
Biodiversity action plan
This article is about a conservation biology topic. For other uses of BAP, see BAP (disambiguation).A biodiversity action plan (BAP) is an internationally recognized program addressing threatened species and habitats and is designed to protect and restore biological systems. The original impetus for these plans derives from the 1992 Convention on Biological Diversity (CBD). As of 2009, 191 countries have ratified the CBD, but only a fraction of these have developed substantive BAP documents.The principal elements of a BAP typically include: (a) preparing inventories of biological information for selected species or habitats; (b) assessing the conservation status of species within specified ecosystems; (c) creation of targets for conservation and restoration; and (d) establishing budgets, timelines and institutional partnerships for implementing the BAP.