Approximating Nature`s Variation: Selecting and Using Reference
... management against natural successional change), reference information helps us determine a site-specific set of feasible restoration goals and forecast the need for management that will replace or counteract natural processes. In essence, selecting and using reference information requires that we a ...
... management against natural successional change), reference information helps us determine a site-specific set of feasible restoration goals and forecast the need for management that will replace or counteract natural processes. In essence, selecting and using reference information requires that we a ...
Environmental Fitness for Sustained Population Dynamics
... a possibility that can be used by the agents, or not. Agents can get resources by hunting other agents in addition to grazing. Evolution acts on the AI decision to do either one, or both. Similarly the resource competition aspect is also parameterized. Agents are allowed to reproduce only after they ...
... a possibility that can be used by the agents, or not. Agents can get resources by hunting other agents in addition to grazing. Evolution acts on the AI decision to do either one, or both. Similarly the resource competition aspect is also parameterized. Agents are allowed to reproduce only after they ...
polydomous odorous house ant, Tapinoma sessile as revealed by a
... Culver and Beattie (1978) and Fellers (1989) reported that ant forage preference is variable temporally. Repeating this study at other temporal scales would determine is sugar preference is consistent. Another variable not controlled for was colony structure. A new, rapidly growing colony will have ...
... Culver and Beattie (1978) and Fellers (1989) reported that ant forage preference is variable temporally. Repeating this study at other temporal scales would determine is sugar preference is consistent. Another variable not controlled for was colony structure. A new, rapidly growing colony will have ...
Sample 85-90% Biology Lab Report on UNBC CTLT website
... Culver and Beattie (1978) and Fellers (1989) reported that ant forage preference is variable temporally. Repeating this study at other temporal scales would determine is sugar preference is consistent. Another variable not controlled for was colony structure. A new, rapidly growing colony will have ...
... Culver and Beattie (1978) and Fellers (1989) reported that ant forage preference is variable temporally. Repeating this study at other temporal scales would determine is sugar preference is consistent. Another variable not controlled for was colony structure. A new, rapidly growing colony will have ...
Standard Test 3- Nine weeks Exam Answer Section
... d. A lion defends its territory. An ecologist who studies how several species in an area interact among each other and with the abiotic parts of the environment is interested in the biological organization level called a(n) _____. a. community c. ecosystem b. organism d. population In the carbon cyc ...
... d. A lion defends its territory. An ecologist who studies how several species in an area interact among each other and with the abiotic parts of the environment is interested in the biological organization level called a(n) _____. a. community c. ecosystem b. organism d. population In the carbon cyc ...
chapter 1 - diss.fu
... species are known to oviposit on non-host plants, which might not only allow successful overwintering, but may also be a strategy to provide eggs with enemy-free space (Obermaier et al. 2006, Veldtman et al. 2007). Moreover, non-host plant species, as part of diverse vegetation, can interfere with t ...
... species are known to oviposit on non-host plants, which might not only allow successful overwintering, but may also be a strategy to provide eggs with enemy-free space (Obermaier et al. 2006, Veldtman et al. 2007). Moreover, non-host plant species, as part of diverse vegetation, can interfere with t ...
Mass-Balance Analyses of Boreal Forest Population
... individual body mass; their products provide estimates of biomass per area. Snowshoe hares and ground squirrels were modeled with ⌬B not equal to 0 because individual biomass and population size varied over time (Karels and others 2000; Hodges and others 2001). Cyclic mammalian and avian predators w ...
... individual body mass; their products provide estimates of biomass per area. Snowshoe hares and ground squirrels were modeled with ⌬B not equal to 0 because individual biomass and population size varied over time (Karels and others 2000; Hodges and others 2001). Cyclic mammalian and avian predators w ...
A Dynamical Systems Approach to Modeling Plankton Food Web
... systems involving a resource, a prey (phytoplankton), and predators (zooplankton) in order to understand the complex interactions between these constituents. It is important to study these food chains, because phytoplankton contribute to numerous biogeochemical processes in nature. They control wate ...
... systems involving a resource, a prey (phytoplankton), and predators (zooplankton) in order to understand the complex interactions between these constituents. It is important to study these food chains, because phytoplankton contribute to numerous biogeochemical processes in nature. They control wate ...
5Water column biota
... Kimmerer and McKinnon (1987a) estimated the growth, mortality and secondary production of the dominant copepod, Acartia fancetti, from 1982 to 1984 at one of two sites (Figure 5.2). Growth rate was measured by size fractionation to produce an ‘artificial’ cohort, followed by field incubation in sealed ...
... Kimmerer and McKinnon (1987a) estimated the growth, mortality and secondary production of the dominant copepod, Acartia fancetti, from 1982 to 1984 at one of two sites (Figure 5.2). Growth rate was measured by size fractionation to produce an ‘artificial’ cohort, followed by field incubation in sealed ...
EDMUND RICE INTERNATIONAL (ERI) Biodiversity and Human Rig
... groups assume their children have access to and direct experience of local ecosystems and their biodiversity. Children in these groups, which include many Indigenous groups, suffer even more violations of their rights. The Convention on the Rights of the Child (CRC) lists over 40 rights children enj ...
... groups assume their children have access to and direct experience of local ecosystems and their biodiversity. Children in these groups, which include many Indigenous groups, suffer even more violations of their rights. The Convention on the Rights of the Child (CRC) lists over 40 rights children enj ...
Rethinking Adaptation the niche
... to which they and their descendants are exposed. They thereby generate feedback in evolution. As a consequence, there are two routes to the fit between organisms and their environments: (1) organisms may, as a result of natural selection, evolve characteristics that render them well-suited to their ...
... to which they and their descendants are exposed. They thereby generate feedback in evolution. As a consequence, there are two routes to the fit between organisms and their environments: (1) organisms may, as a result of natural selection, evolve characteristics that render them well-suited to their ...
EDWIP_Metadata - Macroecology of Infectious Disease
... entered as reported by authors in citations, and may not be geopolitically current. • SoilType: Soil type and habitat in which association was observed. • AssociatedBacterium: Genus, species, subspecies (optional) of bacteria identified as symbiotic with the nematode species. • IntermediateHost: An ...
... entered as reported by authors in citations, and may not be geopolitically current. • SoilType: Soil type and habitat in which association was observed. • AssociatedBacterium: Genus, species, subspecies (optional) of bacteria identified as symbiotic with the nematode species. • IntermediateHost: An ...
Effects of Risk Assessment and Energy Expenditure on the Foraging
... surrounding area, we may make squirrels expend more energy than normally required to obtain food. We hypothesize that if squirrels have to expend more energy than normal to acquire food, the GUD of that system will be higher than that of a normal energy expenditure system. This pattern should be obs ...
... surrounding area, we may make squirrels expend more energy than normally required to obtain food. We hypothesize that if squirrels have to expend more energy than normal to acquire food, the GUD of that system will be higher than that of a normal energy expenditure system. This pattern should be obs ...
Protists in soil ecology and forest nutrient cycling
... Abstract: Recent progress in protistology has shown that these organisms (protists) are far more diverse than traditionally assumed by soil ecologists. Most studies have grouped these into motility groups, as amoebae, flagellates, and ciliates. Unfortunately, these do not represent functionally usef ...
... Abstract: Recent progress in protistology has shown that these organisms (protists) are far more diverse than traditionally assumed by soil ecologists. Most studies have grouped these into motility groups, as amoebae, flagellates, and ciliates. Unfortunately, these do not represent functionally usef ...
Rhincodon typus (Whale Shark)
... skin is very tough which allows for greater chance of survival if damaged. Feeding is mostly done in deeper, open waters where zooplankton and schools of teleosts (bony fish) reside, thus making juveniles susceptible to predation by blue marlins and blue sharks (de la Parra Venegas et al., 2011). As ...
... skin is very tough which allows for greater chance of survival if damaged. Feeding is mostly done in deeper, open waters where zooplankton and schools of teleosts (bony fish) reside, thus making juveniles susceptible to predation by blue marlins and blue sharks (de la Parra Venegas et al., 2011). As ...
Varanus acanthurus. Photo by Jeff Lemm.
... now being released into the atmosphere (in terms of the greenhouse effect, each molecule of methane is equivalent to 25 molecules of carbon dioxide). When a molecule of methane burns, it gives off heat and is oxidized into two molecules of water and one of carbon dioxide, both of which are powerful ...
... now being released into the atmosphere (in terms of the greenhouse effect, each molecule of methane is equivalent to 25 molecules of carbon dioxide). When a molecule of methane burns, it gives off heat and is oxidized into two molecules of water and one of carbon dioxide, both of which are powerful ...
Bison are a keystone species for ecosystem restoration
... return labile nitrogen to the soils in the form of urine which is more effective than the slower mineralization of nitrogen from plant litter breakdown (Ruess and McNaughton 1988). At the same time, grazing increases the amount and quality of plant litter that is returned to the soil as well as the ...
... return labile nitrogen to the soils in the form of urine which is more effective than the slower mineralization of nitrogen from plant litter breakdown (Ruess and McNaughton 1988). At the same time, grazing increases the amount and quality of plant litter that is returned to the soil as well as the ...
Contribution de la FRE BioMéa aux études - Umr
... How would species change in the case of loss of intertidal flat? ...
... How would species change in the case of loss of intertidal flat? ...
The architecture of mutualistic networks minimizes competition and
... species below the strong mutualism threshold have positive biomass. It follows from this analysis that, if one pair of species overcomes the strong mutualism threshold, no other species below the threshold can coexist with them at any fixed point. Notice that we have considered the best possible inte ...
... species below the strong mutualism threshold have positive biomass. It follows from this analysis that, if one pair of species overcomes the strong mutualism threshold, no other species below the threshold can coexist with them at any fixed point. Notice that we have considered the best possible inte ...
Does natural selection organize ecosystems for the maintenance of
... by humans. Here, we consider several examples of how heedless human disturbance diminishes diversity and/or productivity. Humans are now fragmenting ecosystems into scattered parks. Conservation biologists fear the impact of global warming on these parks: will this warming injure natural ecosystems ...
... by humans. Here, we consider several examples of how heedless human disturbance diminishes diversity and/or productivity. Humans are now fragmenting ecosystems into scattered parks. Conservation biologists fear the impact of global warming on these parks: will this warming injure natural ecosystems ...
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.