Plant communities in harsh sites are less invaded: a summary of
... non-native invasive species is lower compared to similar, less harsh sites. When a stressor occurs in discrete patches (e.g., edaphic stressors or dense forest shade), less harsh sites can include the habitat matrix adjacent to patches of harsh habitat. When a stressor is caused by continuous climat ...
... non-native invasive species is lower compared to similar, less harsh sites. When a stressor occurs in discrete patches (e.g., edaphic stressors or dense forest shade), less harsh sites can include the habitat matrix adjacent to patches of harsh habitat. When a stressor is caused by continuous climat ...
Ecological roles and conservation challenges of social, burrowing
... many other species, thereby increasing biodiversity and habitat heterogeneity across the landscape. They also help maintain grassland presence and serve as important prey for many predators. However, these burrowing mammals are facing myriad threats, which have caused marked decreases in populations ...
... many other species, thereby increasing biodiversity and habitat heterogeneity across the landscape. They also help maintain grassland presence and serve as important prey for many predators. However, these burrowing mammals are facing myriad threats, which have caused marked decreases in populations ...
Dynamics of ecological communities in variable environments
... ecosystems of our world. Some of the most severe threats are the destruction and fragmentation of natural habitats and the impact of climate change (Pereira et al. 2010). One of the major challenges for ecologists is to be able to forecast what the consequences will be for the stability and persiste ...
... ecosystems of our world. Some of the most severe threats are the destruction and fragmentation of natural habitats and the impact of climate change (Pereira et al. 2010). One of the major challenges for ecologists is to be able to forecast what the consequences will be for the stability and persiste ...
Definition of the Mediterranean eco-regions and maps of
... Anthropogenic pressures strongly influence the physical and biological systems of the oceanic realm. Recent modifications of the natural range and dynamic of environmental factors that regulates the global marine ecosystems have introduced drastic modifications over the biogeochemical division of th ...
... Anthropogenic pressures strongly influence the physical and biological systems of the oceanic realm. Recent modifications of the natural range and dynamic of environmental factors that regulates the global marine ecosystems have introduced drastic modifications over the biogeochemical division of th ...
The role of ants in conservation monitoring: If, when
... for ecosystem monitoring. Invertebrate populations can register the short-term impact of land management techniques and restoration efforts, as well as indicate longer-term general ecosystem change, such as restoration of mine sites or climate change (e.g., McGeoch, 1998; Parmesan et al., 1999; Bise ...
... for ecosystem monitoring. Invertebrate populations can register the short-term impact of land management techniques and restoration efforts, as well as indicate longer-term general ecosystem change, such as restoration of mine sites or climate change (e.g., McGeoch, 1998; Parmesan et al., 1999; Bise ...
Body size distributions in North American freshwater fish: smallscale
... and individuals (Kerr & Dickie 2001; de Eyto & Irvine 2007) being rarer, so species size also contains, admittedly crude, abundance information. As Post et al. (2007) make clear, defining ecosystem size is not straightforward. In all but the smallest lakes, water depth has a significant structuring in ...
... and individuals (Kerr & Dickie 2001; de Eyto & Irvine 2007) being rarer, so species size also contains, admittedly crude, abundance information. As Post et al. (2007) make clear, defining ecosystem size is not straightforward. In all but the smallest lakes, water depth has a significant structuring in ...
Conservation of Deep Pelagic Biodiversity
... layers, because of their high productivity, are where the larvae and juveniles of many deep-living species develop, before returning to the adult depth range. Because these early life-history stages may have narrow physiological tolerances, rising surface temperatures may play a role in altering the ...
... layers, because of their high productivity, are where the larvae and juveniles of many deep-living species develop, before returning to the adult depth range. Because these early life-history stages may have narrow physiological tolerances, rising surface temperatures may play a role in altering the ...
Felicia Woods EEOS 660 November 18, 2014 Importance of
... too many nutrients, causing limits in primary production or eutrophication, respectively (Weathers and Ewing, 2013; Turner et al, 2009). Phragmites australis is the dominant plant in the area being considered for restoration, as well as a problem in most of the wetlands along the Neponset River wate ...
... too many nutrients, causing limits in primary production or eutrophication, respectively (Weathers and Ewing, 2013; Turner et al, 2009). Phragmites australis is the dominant plant in the area being considered for restoration, as well as a problem in most of the wetlands along the Neponset River wate ...
Biodiversity effects on productivity and stability of marine macroalgal
... environmental context and the mechanisms by which it may influence diversity effects on production and stability remain poorly understood. We assembled marine macroalgal communities in two mesocosm experiments that varied nutrient supply, and at four field sites that differed naturally in environmen ...
... environmental context and the mechanisms by which it may influence diversity effects on production and stability remain poorly understood. We assembled marine macroalgal communities in two mesocosm experiments that varied nutrient supply, and at four field sites that differed naturally in environmen ...
TITLE: It`s a Puma-eat-Deer-eat-Grass World!
... population grows, development continues to swallow open space that predators need to survive. Low birth rates and large home ranges make carnivores more sensitive to habitat loss than other species and are often among the first casualties when land is developed. To make matters worse, government-spo ...
... population grows, development continues to swallow open space that predators need to survive. Low birth rates and large home ranges make carnivores more sensitive to habitat loss than other species and are often among the first casualties when land is developed. To make matters worse, government-spo ...
Patterns of species diversity and phylogenetic structure of vascular
... present in the grid when both its horizontal (county) and vertical (elevation range) distribution was included in the grid. Some grids contained more than one county; therefore, conversion only based on horizontal distribution might enlarge the distribution range of the species. However, this bias h ...
... present in the grid when both its horizontal (county) and vertical (elevation range) distribution was included in the grid. Some grids contained more than one county; therefore, conversion only based on horizontal distribution might enlarge the distribution range of the species. However, this bias h ...
Comparative Country Study
... You will be creating a non-fiction information book about a species entitled: “AN ECOLOGICAL STUDY OF ____(name species)______” A species is a group of organisms that can successfully mate with each other and reproduce. Examples include the giant octopus, Atlantic salmon, Pacific tree frog, Polar Be ...
... You will be creating a non-fiction information book about a species entitled: “AN ECOLOGICAL STUDY OF ____(name species)______” A species is a group of organisms that can successfully mate with each other and reproduce. Examples include the giant octopus, Atlantic salmon, Pacific tree frog, Polar Be ...
Effect of human disturbance on long
... Reed and Merenlender 2011). Often causes are obvious, such as anthropogenic destruction of habitat, but many human activities appear benign yet ultimately may cause population numbers to decline in an area over time. These forms of disturbance include ...
... Reed and Merenlender 2011). Often causes are obvious, such as anthropogenic destruction of habitat, but many human activities appear benign yet ultimately may cause population numbers to decline in an area over time. These forms of disturbance include ...
Can the invasive European rabbit (Oryctolagus
... blocks. As such, the design is pseudo-replicated and hence interpretation of the effects of ecosystem engineers should not be generalised beyond the study site. However, home range analysis of bilbies and bettongs suggests that these sites are independent with respect to treatment effects (Moseby an ...
... blocks. As such, the design is pseudo-replicated and hence interpretation of the effects of ecosystem engineers should not be generalised beyond the study site. However, home range analysis of bilbies and bettongs suggests that these sites are independent with respect to treatment effects (Moseby an ...
the role of competition in structuring ant communities: a review
... ecology. Among these mechanisms, competition is mentioned as the regulatory factor structuring biological communities, despite the fact that the concept is controversial in ecology. Myrmecologists, however, for the most part, view competition as one of the main factors structuring ant communities. T ...
... ecology. Among these mechanisms, competition is mentioned as the regulatory factor structuring biological communities, despite the fact that the concept is controversial in ecology. Myrmecologists, however, for the most part, view competition as one of the main factors structuring ant communities. T ...
Species-Specific Responses of Carnivores to Human
... for all the others (Table 1) [45]. We applied a Principal Component Analysis (PCA) with the objective of reducing the number of variables and the possible effect of multicollinearity among them as well as to obtain linear combinations of these variables describing the prevailing landscape gradients ...
... for all the others (Table 1) [45]. We applied a Principal Component Analysis (PCA) with the objective of reducing the number of variables and the possible effect of multicollinearity among them as well as to obtain linear combinations of these variables describing the prevailing landscape gradients ...
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Conservation biology
... Species Diversity • Species diversity is the variety of species in an ecosystem or throughout the biosphere • According to the U.S. Endangered Species Act – An endangered species is “in danger of becoming extinct throughout all or a significant portion of its range” – A threatened species is likely ...
... Species Diversity • Species diversity is the variety of species in an ecosystem or throughout the biosphere • According to the U.S. Endangered Species Act – An endangered species is “in danger of becoming extinct throughout all or a significant portion of its range” – A threatened species is likely ...
Journal of Animal Ecology 82(6) - Seagrass Ecosystems Research
... in structuring herbivore–primary producer interactions. In some situations, risk effects may rival or even exceed the influence of direct predation on prey populations, communities and plant nutrient dynamics (Werner & Peacor 2003; Preisser, Bolnick & Benard 2005; Creel & Christianson 2008; Creel 20 ...
... in structuring herbivore–primary producer interactions. In some situations, risk effects may rival or even exceed the influence of direct predation on prey populations, communities and plant nutrient dynamics (Werner & Peacor 2003; Preisser, Bolnick & Benard 2005; Creel & Christianson 2008; Creel 20 ...
Ecopath, Ecosim, and Ecospace as tools for evaluating ecosystem
... ecosystems, relevant to the issue of fisheries impacts, have been developed and these have affected the evolution of the Ecopath approach. Thus, the description of the average state of an ecosystem, using Ecopath proper, now serves to parametrize systems of coupled difference and differential equations ...
... ecosystems, relevant to the issue of fisheries impacts, have been developed and these have affected the evolution of the Ecopath approach. Thus, the description of the average state of an ecosystem, using Ecopath proper, now serves to parametrize systems of coupled difference and differential equations ...
Stability and complexity : a reappraisal of the Competitive Exclusion
... `mathematical stability' similar to Elton's concept of ecological stability. When large systems were examined by May (1972) he found that they exhibited a great tendency to become unstable as complexity increased, when a certain critical threshold was reached. Complexity is measured as connectance ( ...
... `mathematical stability' similar to Elton's concept of ecological stability. When large systems were examined by May (1972) he found that they exhibited a great tendency to become unstable as complexity increased, when a certain critical threshold was reached. Complexity is measured as connectance ( ...
Population Viability Analysis Annual Review of Ecology and
... genetic variation, a general answer to this question probably does not exist. Furthermore, the genetic variance within populations is a convex function of dispersal (migration) with maximum variance at the highest possible dispersal. Likewise, variance among populations is a convex function of dispe ...
... genetic variation, a general answer to this question probably does not exist. Furthermore, the genetic variance within populations is a convex function of dispersal (migration) with maximum variance at the highest possible dispersal. Likewise, variance among populations is a convex function of dispe ...
Grades K-2 Biodiversity 1. What is a group of organisms that can
... Grades 3-5 Biodiversity Grades 3-5 Biodiversity 27. What is a group of different species in one place? A. a population B. an ecosystem C. a community CORRECT: B, C ...
... Grades 3-5 Biodiversity Grades 3-5 Biodiversity 27. What is a group of different species in one place? A. a population B. an ecosystem C. a community CORRECT: B, C ...
Hierarchical effects of environmental filters on the functional
... predict the response of biodiversity to global change drivers. Ecological theory suggests that multiple environmental factors shape local species assemblages by progressively filtering species from the regional species pool to local communities. These successive filters should influence the various ...
... predict the response of biodiversity to global change drivers. Ecological theory suggests that multiple environmental factors shape local species assemblages by progressively filtering species from the regional species pool to local communities. These successive filters should influence the various ...
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.