Prowling for Predators- Africa Overnight
... Carnivores evolved as predators of odd and even-toed ungulates and rodents. Interactions of these predators and their prey helped shape the animals we see today. By predators always taking the individuals easiest to catch, predators promote survival of the fittest; as their prey becomes harder to c ...
... Carnivores evolved as predators of odd and even-toed ungulates and rodents. Interactions of these predators and their prey helped shape the animals we see today. By predators always taking the individuals easiest to catch, predators promote survival of the fittest; as their prey becomes harder to c ...
Diet, Morphology, and Interspecific Killing in Carnivora
... involved in interspecific killing to its expected values obtained from data on geographic range overlap (see “Geographic Range Overlap Analysis”). To account for the effects of taxonomy, we compared the observed distribution of interspecific killing between same- and different-family species pairs w ...
... involved in interspecific killing to its expected values obtained from data on geographic range overlap (see “Geographic Range Overlap Analysis”). To account for the effects of taxonomy, we compared the observed distribution of interspecific killing between same- and different-family species pairs w ...
Frequently Asked Questions About Ecological - CLU-IN
... Ecological revitalization can be implemented to some degree at any site; however, the benefits will be strongly influenced by the surrounding area. Ecological revitalization can most easily be incorporated for a site that is already located within a larger beneficial habitat or ecosystem. Sites that ...
... Ecological revitalization can be implemented to some degree at any site; however, the benefits will be strongly influenced by the surrounding area. Ecological revitalization can most easily be incorporated for a site that is already located within a larger beneficial habitat or ecosystem. Sites that ...
D3.1 Annex 8c Section 6 Environmental impact plants
... In this question we rate the current environmental impact in other invaded regions that can be used as an indicator for determining the potential environmental impact in the PRA area (Q. 6.09). If the species has not invaded any other area, or if the invasion is too recent and too little is known ab ...
... In this question we rate the current environmental impact in other invaded regions that can be used as an indicator for determining the potential environmental impact in the PRA area (Q. 6.09). If the species has not invaded any other area, or if the invasion is too recent and too little is known ab ...
Role of Marine Microbes in Carbon and Nutrient Cycles
... sedimentation. In fact, and for many years, geochemists and geologists have considered “dissolved organic matter” everything that was below 0.45 µm (thus including most bacteria and archaea). Small microbes also have a property that has ecosystem-level implications: they tend to have less water for ...
... sedimentation. In fact, and for many years, geochemists and geologists have considered “dissolved organic matter” everything that was below 0.45 µm (thus including most bacteria and archaea). Small microbes also have a property that has ecosystem-level implications: they tend to have less water for ...
newly emergent and future threats of alien species to pacific birds
... many snakes (Fitch 1985, Seigel and Ford 1987, Shine and Seigel 1996). The brown tree snake apparently produces at most a single clutch per year in its native range (Shine 1991) but may produce two per year in Guam (Rodda et al. 1998); hence, its intrinsic rate of increase is probably fairly low. It ...
... many snakes (Fitch 1985, Seigel and Ford 1987, Shine and Seigel 1996). The brown tree snake apparently produces at most a single clutch per year in its native range (Shine 1991) but may produce two per year in Guam (Rodda et al. 1998); hence, its intrinsic rate of increase is probably fairly low. It ...
Edible insects as a natural resource
... heterogeneity as possible; reduce contrast between remnant patches and neighbouring disturbed patches; set aside land for insects outside reserves; simulate natural conditions and disturbance; and connect similar patches of quality habitat. Boulidam (2010) added that efforts in edible insect managem ...
... heterogeneity as possible; reduce contrast between remnant patches and neighbouring disturbed patches; set aside land for insects outside reserves; simulate natural conditions and disturbance; and connect similar patches of quality habitat. Boulidam (2010) added that efforts in edible insect managem ...
Biotic interactions among estuarine infaunal
... ABSTRACT: Biotic interactions among soft-sediment infauna were investigated in a small New England estuary in order to determine what effect(s) established opportunistic species had on subsequent recolonization. Interactions were defined according to successional models developed by Connell and Slat ...
... ABSTRACT: Biotic interactions among soft-sediment infauna were investigated in a small New England estuary in order to determine what effect(s) established opportunistic species had on subsequent recolonization. Interactions were defined according to successional models developed by Connell and Slat ...
Grassland root communities: species distributions and how they are
... members of certain pairs of species at each site could not be discriminated from one another, maximum, average, and minimum values for the sites are probably conservative. For example, at the mesic site, where derived belowground species richness values were likely most conservative, 261 bp, 269 bp, ...
... members of certain pairs of species at each site could not be discriminated from one another, maximum, average, and minimum values for the sites are probably conservative. For example, at the mesic site, where derived belowground species richness values were likely most conservative, 261 bp, 269 bp, ...
Functional Groups of Ecosystem Engineers: A
... the trivial, so a process-based definition that can technically be applied to some trivial situations is simply not problematic (Jones and Gutiérrez 2007). The argument, however, is as much about issues of scale as about process versus outcome—is ecosystem engineering only interesting if its effect ...
... the trivial, so a process-based definition that can technically be applied to some trivial situations is simply not problematic (Jones and Gutiérrez 2007). The argument, however, is as much about issues of scale as about process versus outcome—is ecosystem engineering only interesting if its effect ...
The interplay between habitat structure and chemical
... that impacts due to contamination can be predicted, and therefore managed, considering (i) the type of toxicants (and their chemical properties), (ii) the functional groups present in the impacted area, (iii) their reproductive rates, (iv) the trophic interactions occurring in the systems and the (v ...
... that impacts due to contamination can be predicted, and therefore managed, considering (i) the type of toxicants (and their chemical properties), (ii) the functional groups present in the impacted area, (iii) their reproductive rates, (iv) the trophic interactions occurring in the systems and the (v ...
Document
... The book is divided into three parts, preceded by a rare insight into the experiences of one of the pioneers in the study of the maned wolf, Dr Cory Carvalho, which should inspire newcomers to get to know the species in the same way his work has inspired many of us. The following chapters explore a ...
... The book is divided into three parts, preceded by a rare insight into the experiences of one of the pioneers in the study of the maned wolf, Dr Cory Carvalho, which should inspire newcomers to get to know the species in the same way his work has inspired many of us. The following chapters explore a ...
Trophic ecology of reef sharks determined using stable isotopes and
... from all nine receivers and considered an individual present in Coral Bay if detected more than once by the array in a day. Residency to Skeleton Bay (an aggregation site within the Coral Bay area) has previously been reported (Speed et al. 2011); however, residency to the entire Coral Bay area has ...
... from all nine receivers and considered an individual present in Coral Bay if detected more than once by the array in a day. Residency to Skeleton Bay (an aggregation site within the Coral Bay area) has previously been reported (Speed et al. 2011); however, residency to the entire Coral Bay area has ...
Non-optimal animal movement in human
... habitat). Note, however, that when an animal from continuous habitat enters a large patch of matrix, even though it is relatively insensitive to the boundary it may still ‘change its mind’ and return to habitat when it fails to encounter conspecifics or other resources in the matrix (Ries & Debinski ...
... habitat). Note, however, that when an animal from continuous habitat enters a large patch of matrix, even though it is relatively insensitive to the boundary it may still ‘change its mind’ and return to habitat when it fails to encounter conspecifics or other resources in the matrix (Ries & Debinski ...
- Wiley Online Library
... Positive vs. negative feedback dynamics A second, qualitatively distinct manner in which interactions with soil microbes can contribute to the maintenance of diversity in plant communities is through feedbacks on plant growth resulting from changes in the composition of the soil community. While fee ...
... Positive vs. negative feedback dynamics A second, qualitatively distinct manner in which interactions with soil microbes can contribute to the maintenance of diversity in plant communities is through feedbacks on plant growth resulting from changes in the composition of the soil community. While fee ...
Reintroducing captive breed species – the effects
... changed with 40% and 75%, as if they were kept in captivity during their absence from the ecosystem. The mortality/growth-rate was used since it is a good measure of several changes (introduction, 2.3., p.7) in a captive bred species, for example, genetic depression, weakened predator skills and inf ...
... changed with 40% and 75%, as if they were kept in captivity during their absence from the ecosystem. The mortality/growth-rate was used since it is a good measure of several changes (introduction, 2.3., p.7) in a captive bred species, for example, genetic depression, weakened predator skills and inf ...
The Influence of Low Intensities of Light Pollution on Bat
... If the best model did not converge for both the intensity and type of light, we ran both models with a Poisson distribution. In a final analysis, we studied the relationship between the trait ‘‘artificial light sensitivity’’ and the pattern of change in bat activities during the night. Bat species w ...
... If the best model did not converge for both the intensity and type of light, we ran both models with a Poisson distribution. In a final analysis, we studied the relationship between the trait ‘‘artificial light sensitivity’’ and the pattern of change in bat activities during the night. Bat species w ...
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 ...
Gray Wolf Factsheet - Endangered Species Coalition
... of wolves to Yellowstone National Park has forced once-sedentary elk herds to move and biologists have documented resulting ecosystem changes and enormous benefits for other species, from amphibians to fish, songbirds, moose, pronghorn, and lynx. Moreover, browsing elk no longer suppress aspen, cott ...
... of wolves to Yellowstone National Park has forced once-sedentary elk herds to move and biologists have documented resulting ecosystem changes and enormous benefits for other species, from amphibians to fish, songbirds, moose, pronghorn, and lynx. Moreover, browsing elk no longer suppress aspen, cott ...
Ontogenetic diet shifts and resource partitioning among piscivorous
... on independent sampling efforts risk (1) underestimating availability when microhabitats available to fish are undersampled, and (2) overestimating availability when large numbers of prey that are actually invulnerable to predation are sampled (Wallace 1981). In effect, the method estimates food ava ...
... on independent sampling efforts risk (1) underestimating availability when microhabitats available to fish are undersampled, and (2) overestimating availability when large numbers of prey that are actually invulnerable to predation are sampled (Wallace 1981). In effect, the method estimates food ava ...
Chap.8 Competition and coexistence
... Road Map 1. Forms of competition: Interspecific and intraspecific 2. Intraspecific competition – Common in nature – Described by the 3/2 thinning law ...
... Road Map 1. Forms of competition: Interspecific and intraspecific 2. Intraspecific competition – Common in nature – Described by the 3/2 thinning law ...
Theoretical ecology
Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations, and advanced data analysis. Effective models improve understanding of the natural world by revealing how the dynamics of species populations are often based on fundamental biological conditions and processes. Further, the field aims to unify a diverse range of empirical observations by assuming that common, mechanistic processes generate observable phenomena across species and ecological environments. Based on biologically realistic assumptions, theoretical ecologists are able to uncover novel, non-intuitive insights about natural processes. Theoretical results are often verified by empirical and observational studies, revealing the power of theoretical methods in both predicting and understanding the noisy, diverse biological world.The field is broad and includes foundations in applied mathematics, computer science, biology, statistical physics, genetics, chemistry, evolution, and conservation biology. Theoretical ecology aims to explain a diverse range of phenomena in the life sciences, such as population growth and dynamics, fisheries, competition, evolutionary theory, epidemiology, animal behavior and group dynamics, food webs, ecosystems, spatial ecology, and the effects of climate change.Theoretical ecology has further benefited from the advent of fast computing power, allowing the analysis and visualization of large-scale computational simulations of ecological phenomena. Importantly, these modern tools provide quantitative predictions about the effects of human induced environmental change on a diverse variety of ecological phenomena, such as: species invasions, climate change, the effect of fishing and hunting on food network stability, and the global carbon cycle.