a full - British Ecological Society
... population recruits by specialist predators (Janzen 1970; Armstrong 1989). Spatio-temporal heterogeneity and/or environmental uncertainty are important conditions for coexistence in all of these models, although as far as we are aware, they have not previously been gathered together in this way. In ...
... population recruits by specialist predators (Janzen 1970; Armstrong 1989). Spatio-temporal heterogeneity and/or environmental uncertainty are important conditions for coexistence in all of these models, although as far as we are aware, they have not previously been gathered together in this way. In ...
Limits on ecosystem trophic complexity: insights from ecological
... higher level by flows of a quantity (e.g. energy, mass), and there are return flows from each node in the highest trophic level to every node at the lowest level. For simplicity, all flows are assumed equal in magnitude. The upward flows might represent the flow of, say, nitrogen up a food chain, wh ...
... higher level by flows of a quantity (e.g. energy, mass), and there are return flows from each node in the highest trophic level to every node at the lowest level. For simplicity, all flows are assumed equal in magnitude. The upward flows might represent the flow of, say, nitrogen up a food chain, wh ...
Limits on ecosystem trophic complexity: insights from
... higher level by flows of a quantity (e.g. energy, mass), and there are return flows from each node in the highest trophic level to every node at the lowest level. For simplicity, all flows are assumed equal in magnitude. The upward flows might represent the flow of, say, nitrogen up a food chain, wh ...
... higher level by flows of a quantity (e.g. energy, mass), and there are return flows from each node in the highest trophic level to every node at the lowest level. For simplicity, all flows are assumed equal in magnitude. The upward flows might represent the flow of, say, nitrogen up a food chain, wh ...
Disturbance, Diversity, and Invasion: Implications for
... the likelihood of invasion of a community. For invasion to o c c u r there must be available propagules of an invasive species capable of dispersing into a given plant community, and there then has to b e a suitable microsite for germination and establishment to occur. That is, there has to be a sui ...
... the likelihood of invasion of a community. For invasion to o c c u r there must be available propagules of an invasive species capable of dispersing into a given plant community, and there then has to b e a suitable microsite for germination and establishment to occur. That is, there has to be a sui ...
Terrestrial Fauna
... populations as well as entire species. In parts of Western Australia, such as the AvonWheatbelt and Swan Coastal Plain, large scale clearing and loss of wetland habitat has occurred. In addition to habitat loss, these highly fragmented landscapes affect the ability of species to disperse. This may b ...
... populations as well as entire species. In parts of Western Australia, such as the AvonWheatbelt and Swan Coastal Plain, large scale clearing and loss of wetland habitat has occurred. In addition to habitat loss, these highly fragmented landscapes affect the ability of species to disperse. This may b ...
Ecosystem Loss and Fragmentation: Synthesis
... are disappearing more rapidly as those areas are often more conducive to agricultural activities (Fearnside and Laurance, 2003). For conservation planning, it is also critical to keep in mind the variation in deforestation rates at regional and local scales as different strategies might be needed. F ...
... are disappearing more rapidly as those areas are often more conducive to agricultural activities (Fearnside and Laurance, 2003). For conservation planning, it is also critical to keep in mind the variation in deforestation rates at regional and local scales as different strategies might be needed. F ...
Biogeography and ecology: towards the integration of two disciplines
... conceptually useful term that can be applied to all ecological systems, but has informed theory primarily in closed systems (i.e. those that neither receive nor export organisms), as in the Lotka–Volterra equations for competition and predation. This community concept struggles with the more open sy ...
... conceptually useful term that can be applied to all ecological systems, but has informed theory primarily in closed systems (i.e. those that neither receive nor export organisms), as in the Lotka–Volterra equations for competition and predation. This community concept struggles with the more open sy ...
THE ROLE OF ABOVE-AND BELOWGROUND LINKAGES IN
... Similarly, no clear relation between plant species diversity and the soil community was found in a field survey of established grassland. However, species-specific effects of different grass species on bacteria and nematode groups were apparent [4]. In a plantremoval study in grassland, plant commun ...
... Similarly, no clear relation between plant species diversity and the soil community was found in a field survey of established grassland. However, species-specific effects of different grass species on bacteria and nematode groups were apparent [4]. In a plantremoval study in grassland, plant commun ...
simulated predator extinctions
... Abstract. The rate of species loss is increasing at a global scale, and human-induced extinctions are biased toward predator species. We examined the effects of predator extinctions on a foundation species, the eastern oyster (Crassostrea virginica). We performed a factorial experiment manipulating ...
... Abstract. The rate of species loss is increasing at a global scale, and human-induced extinctions are biased toward predator species. We examined the effects of predator extinctions on a foundation species, the eastern oyster (Crassostrea virginica). We performed a factorial experiment manipulating ...
IOSR Journal of Environmental Science, Toxicology and Food Technology (IOSR-JESTFT)
... Behavioral ecology is the branch of science that studies the ecological and evolutionary aspects of a species or a collection of species with that of its/their immediate environment. It deals with analyses of relationships between an organism's behaviour and the environment wherein the said behaviou ...
... Behavioral ecology is the branch of science that studies the ecological and evolutionary aspects of a species or a collection of species with that of its/their immediate environment. It deals with analyses of relationships between an organism's behaviour and the environment wherein the said behaviou ...
Declining amphibian populations and possible ecological
... rural savanna regions of West Africa, freshwater ecosystems are essential water resources for humans and cattle. Altering these ecosystems therefore may have important economic and health consequences. Prospective impacts on water chemistry, algae and aquatic invertebrate taxa are highlighted. Key w ...
... rural savanna regions of West Africa, freshwater ecosystems are essential water resources for humans and cattle. Altering these ecosystems therefore may have important economic and health consequences. Prospective impacts on water chemistry, algae and aquatic invertebrate taxa are highlighted. Key w ...
shipping pathways of effects
... linkages between activities and their potential impacts on various aspects of the ecosystem. In addition, PoEs are essential to the development of threat and risk assessments. This Science Advisory Report provides an overview of shipping PoEs (i.e. anchoring, grounding, movement underway, oils spill ...
... linkages between activities and their potential impacts on various aspects of the ecosystem. In addition, PoEs are essential to the development of threat and risk assessments. This Science Advisory Report provides an overview of shipping PoEs (i.e. anchoring, grounding, movement underway, oils spill ...
CONSERVATION PLANNING IN THE GREATER ADDO NATIONAL
... have to be treated as special cases in the C-Plan analysis. Given that such species will mediate, or participate in, certain processes, it is recommended that SANP should maintain populations in the park, even if this requires an additional investment of resources. ...
... have to be treated as special cases in the C-Plan analysis. Given that such species will mediate, or participate in, certain processes, it is recommended that SANP should maintain populations in the park, even if this requires an additional investment of resources. ...
Different but equal: the implausible assumption at the heart of
... It would be easy to believe that real communities were indeed neutral, if real communities were composed of functionally equivalent ‘cryptic’ species, which could only be told apart by sequencing non-functional parts of the genome. In this case, the only process determining the dynamics of species w ...
... It would be easy to believe that real communities were indeed neutral, if real communities were composed of functionally equivalent ‘cryptic’ species, which could only be told apart by sequencing non-functional parts of the genome. In this case, the only process determining the dynamics of species w ...
Phytoplankton niches, traits and eco
... future? What taxonomic groups and individual species could benefit or be hit especially hard by changing environmental conditions? Answers to these questions will be required if we want to understand how oceanic ecosystems will function in the future. Organisms can respond to changing environmental ...
... future? What taxonomic groups and individual species could benefit or be hit especially hard by changing environmental conditions? Answers to these questions will be required if we want to understand how oceanic ecosystems will function in the future. Organisms can respond to changing environmental ...
Habitat Structure - MSC Program Improvements
... adjacent soft-bottom environments may provide foraging opportunities. It is important to note that these services may be life-stage and size dependent and can change according to the density of biotic and abiotic physical matter within the habitat structure itself” (Grieve et al., 2011). Original Pr ...
... adjacent soft-bottom environments may provide foraging opportunities. It is important to note that these services may be life-stage and size dependent and can change according to the density of biotic and abiotic physical matter within the habitat structure itself” (Grieve et al., 2011). Original Pr ...
Absence of phylogenetic signal in the niche structure of meadow
... Why should the traits that determine a niches be less conservative in their evolution than those that determine b niches? We propose that the reason lies in the hierarchical nature of community assembly. A plant’s b niche defines the habitat or habitats in which it can survive. Habitats differ from ...
... Why should the traits that determine a niches be less conservative in their evolution than those that determine b niches? We propose that the reason lies in the hierarchical nature of community assembly. A plant’s b niche defines the habitat or habitats in which it can survive. Habitats differ from ...
Marzluff__Rodewald_formatted _Nov 18-2
... Abstract We review common population and community-level responses of wildlife to urbanization, and discuss how: (1) the amount and configuration of land cover and land use, and (2) the alteration of resources (e.g., type of vegetation, presence of food and water) and processes (e.g., natural distur ...
... Abstract We review common population and community-level responses of wildlife to urbanization, and discuss how: (1) the amount and configuration of land cover and land use, and (2) the alteration of resources (e.g., type of vegetation, presence of food and water) and processes (e.g., natural distur ...
South African National Biodiversity Institute
... Key Milestones In the Last Year 1. Key senior appointments made for integration and leadership 2. Funding secured for development of Human Capacity Development Strategy – an important priority of the National Biodiversity Strategy and Action Plan (NBSAP, 2005) 3. Income of R128.8 million from DEAT, ...
... Key Milestones In the Last Year 1. Key senior appointments made for integration and leadership 2. Funding secured for development of Human Capacity Development Strategy – an important priority of the National Biodiversity Strategy and Action Plan (NBSAP, 2005) 3. Income of R128.8 million from DEAT, ...
Reconciling Ecosystems: Reversing Declines in Native Species
... to light the high value of services provided by natural systems, such an approach can guide water resource design, implementation, and operation, leading to better stewardship of the environment (Arthington et al. 2009). Systematic evaluation of services improves the analysis of tradeoffs and comple ...
... to light the high value of services provided by natural systems, such an approach can guide water resource design, implementation, and operation, leading to better stewardship of the environment (Arthington et al. 2009). Systematic evaluation of services improves the analysis of tradeoffs and comple ...
Impact: toward a framework for understanding
... given to defining what we mean by impact, or connecting ecological theory with particular measures of impact. The resulting lack of generalizations regarding invasion impacts is more than an academic problem; we need to be able to distinguish invaders with minor effects from those with large effects ...
... given to defining what we mean by impact, or connecting ecological theory with particular measures of impact. The resulting lack of generalizations regarding invasion impacts is more than an academic problem; we need to be able to distinguish invaders with minor effects from those with large effects ...
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.