trophic levels and trophic tangles
... chain). A food web with only two trophic levels will show less omnivory because taxa have a higher probability of feeding at a single trophic level. In contrast, when food webs have long food chains, taxa have a higher potential to encounter prey items with a range of trophic positions. The food web ...
... chain). A food web with only two trophic levels will show less omnivory because taxa have a higher probability of feeding at a single trophic level. In contrast, when food webs have long food chains, taxa have a higher potential to encounter prey items with a range of trophic positions. The food web ...
Terrestrial Salamander Monitoring Project
... young … reproductive strategy? • no lungs – respire through skin, must avoid dessication • cold-blooded • territorial and aggressive ...
... young … reproductive strategy? • no lungs – respire through skin, must avoid dessication • cold-blooded • territorial and aggressive ...
energy
... enters surface waters and is converted to HCO3 Winds and differences in density drive sea water in a loop from the surface of the Pacific and Atlantic oceans to the Atlantic and Antarctic sea floors HCO3- moves into storage reservoirs before water loops back up Helps dampen any short term effec ...
... enters surface waters and is converted to HCO3 Winds and differences in density drive sea water in a loop from the surface of the Pacific and Atlantic oceans to the Atlantic and Antarctic sea floors HCO3- moves into storage reservoirs before water loops back up Helps dampen any short term effec ...
The Brigalow Belt Bioregion
... The term ‘brigalow’ is used simultaneously to refer to; the tree Acacia harpophylla; an ecological community dominated by this tree and often found in conjunction with other species such as belah, wilga and false sandalwood; and a broader region where this species and ecological community are presen ...
... The term ‘brigalow’ is used simultaneously to refer to; the tree Acacia harpophylla; an ecological community dominated by this tree and often found in conjunction with other species such as belah, wilga and false sandalwood; and a broader region where this species and ecological community are presen ...
Phylogenetic diversity promotes ecosystem stability
... divergence times (Felsenstein 1985, Harvey and Pagel 1991), then the simplest models of evolutionary change predict that the more distantly related two species are, the greater likelihood that they differ ecologically. Of course, individual traits may show idiosyncratic patterns and rates of evoluti ...
... divergence times (Felsenstein 1985, Harvey and Pagel 1991), then the simplest models of evolutionary change predict that the more distantly related two species are, the greater likelihood that they differ ecologically. Of course, individual traits may show idiosyncratic patterns and rates of evoluti ...
Biology Chapter 4 Section 2 Review
... In primary succession, pioneer plants help rocks to break up in the process of soil formation. They also contribute organic material to the forming soil in which plants can grow. PTS: 1 REF: p. 94 9. ANS: Whale-fall succession takes place on the deep, permanently dark ocean floor where there is no l ...
... In primary succession, pioneer plants help rocks to break up in the process of soil formation. They also contribute organic material to the forming soil in which plants can grow. PTS: 1 REF: p. 94 9. ANS: Whale-fall succession takes place on the deep, permanently dark ocean floor where there is no l ...
38662778 - studylib.net
... et al. 1999; Jackson and van Aarde 2003). Other unwelcome byproducts of alien control or eradication may result from trophic relationships between the alien and the native species; for example, rabbits have been introduced to many islands but their management can be controversial: they are undesired ...
... et al. 1999; Jackson and van Aarde 2003). Other unwelcome byproducts of alien control or eradication may result from trophic relationships between the alien and the native species; for example, rabbits have been introduced to many islands but their management can be controversial: they are undesired ...
biodiversity education factsheet
... Genetic diversity: Genes are responsible for the variability among individuals within a species (e.g., colour, size) and it’s this diversity that helps species adapt and evolve to changes in the environment. Species diversity: The different types of living things found in a certain habitat, ecosyste ...
... Genetic diversity: Genes are responsible for the variability among individuals within a species (e.g., colour, size) and it’s this diversity that helps species adapt and evolve to changes in the environment. Species diversity: The different types of living things found in a certain habitat, ecosyste ...
Effect of grazing on net primary production of a Mongolian grassland
... Mongolia is located on northeastern Asia, where ecotone (forest-grassland-desert) is formed because of climatic shift from humid condition to arid condition. An ecotone is a sensitive transitional area between two adjacent ecological communities and generally sensitive to external disturbance (clima ...
... Mongolia is located on northeastern Asia, where ecotone (forest-grassland-desert) is formed because of climatic shift from humid condition to arid condition. An ecotone is a sensitive transitional area between two adjacent ecological communities and generally sensitive to external disturbance (clima ...
- Wiley Online Library
... that of large carnivores is conflicting; it has also been shown that carnivore diet can be partitioned such that large carnivores specialize on large prey and small carnivores specialize on small prey (Owen-Smith & Mills 2008). Therefore, the degree to which a herbivore population is predator-regulat ...
... that of large carnivores is conflicting; it has also been shown that carnivore diet can be partitioned such that large carnivores specialize on large prey and small carnivores specialize on small prey (Owen-Smith & Mills 2008). Therefore, the degree to which a herbivore population is predator-regulat ...
MMinte: an application for predicting metabolic interactions among
... Background: The explosive growth of microbiome research has yielded great quantities of data. These data provide us with many answers, but raise just as many questions. 16S rDNA—the backbone of microbiome analyses—allows us to assess α-diversity, β-diversity, and microbe-microbe associations, which ...
... Background: The explosive growth of microbiome research has yielded great quantities of data. These data provide us with many answers, but raise just as many questions. 16S rDNA—the backbone of microbiome analyses—allows us to assess α-diversity, β-diversity, and microbe-microbe associations, which ...
Intertidal
... People should restore it because that way other people can see it when it is healthy There is evidence that the intertidal zone is important in food webs of the nearby reefs Once the intertidal ecosystems on the island are gone, our last chance at getting information from them will be gone forever! ...
... People should restore it because that way other people can see it when it is healthy There is evidence that the intertidal zone is important in food webs of the nearby reefs Once the intertidal ecosystems on the island are gone, our last chance at getting information from them will be gone forever! ...
From arctic lemmings to adaptive dynamics
... climatic variation. To support this conclusion, he examined long-term population data then available. Despite his firm belief in a climatic cause of the self-repeating periodic dynamics which many species display, Elton was insightful and far-sighted enough to outline many of the other hypotheses si ...
... climatic variation. To support this conclusion, he examined long-term population data then available. Despite his firm belief in a climatic cause of the self-repeating periodic dynamics which many species display, Elton was insightful and far-sighted enough to outline many of the other hypotheses si ...
Ecosystem ecology - energy flux
... “Interaction or energy transformation between abiotic (climate, geology, soils), biotic factors (primary and secondary production), and humans” Ecosystem includes primary producers (plants), decomposers, and detritivores, a pool of dead organic matter, herbivores, carnivores, and parasites plus the ...
... “Interaction or energy transformation between abiotic (climate, geology, soils), biotic factors (primary and secondary production), and humans” Ecosystem includes primary producers (plants), decomposers, and detritivores, a pool of dead organic matter, herbivores, carnivores, and parasites plus the ...
Biodiversity effects on ecosystem functioning: emerging issues and
... particular replicated combination within each diversity level (Naeem et al. 1994). Both approaches have major drawbacks. In the former (1), assemblages at higher diversity levels become more similar (i.e. species composition overlaps more), which becomes a problem when variation of a state or proces ...
... particular replicated combination within each diversity level (Naeem et al. 1994). Both approaches have major drawbacks. In the former (1), assemblages at higher diversity levels become more similar (i.e. species composition overlaps more), which becomes a problem when variation of a state or proces ...
10 predator avoidance
... prey so locally abundant that local predator fauna is satiated, which reduces per capita risk ...
... prey so locally abundant that local predator fauna is satiated, which reduces per capita risk ...
Tenth Grade Science Indicators
... time. Explain the historical and current scientific developments, mechanisms and processes of biological evolution. Describe how scientists continue to investigate and critically analyze aspects of evolutionary theory. (The intent of this benchmark does not mandate the teachings or testing of intell ...
... time. Explain the historical and current scientific developments, mechanisms and processes of biological evolution. Describe how scientists continue to investigate and critically analyze aspects of evolutionary theory. (The intent of this benchmark does not mandate the teachings or testing of intell ...
Coral interactions and community structure: an analysis of spatial
... both scales: the usual large-scale aspect and a smallscale aspect which may or may not be coupled together. Now we may investigate the supposed effects of coral interactions at the scale at which they occur and then track them if they propagate to larger scales. This dissection emphasizes an importa ...
... both scales: the usual large-scale aspect and a smallscale aspect which may or may not be coupled together. Now we may investigate the supposed effects of coral interactions at the scale at which they occur and then track them if they propagate to larger scales. This dissection emphasizes an importa ...
population dynamics and ecological processes in dendritic networks
... of transportation corridors (Christen & Matlack 2006). Although not dendritic in the strict sense, hedgerow and transportation corridors exhibit key structural features of other natural dendritic networks, such as streams or caves. In systems structured as DENs, ecological processes (e.g. dispersal, ...
... of transportation corridors (Christen & Matlack 2006). Although not dendritic in the strict sense, hedgerow and transportation corridors exhibit key structural features of other natural dendritic networks, such as streams or caves. In systems structured as DENs, ecological processes (e.g. dispersal, ...
ECOSYSTEM
... Xerarch succession: Starts on barren rock Proceeds from Xeric (dry) conditions. 26. What is the effect on decomposition rate if:– a) Detritus is rich in lignin and chitin Decomposition rate is slower b) Detritus is rich is nitrogen and sugars Decomposition rate is faster. 27. What are the limitation ...
... Xerarch succession: Starts on barren rock Proceeds from Xeric (dry) conditions. 26. What is the effect on decomposition rate if:– a) Detritus is rich in lignin and chitin Decomposition rate is slower b) Detritus is rich is nitrogen and sugars Decomposition rate is faster. 27. What are the limitation ...
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.