Furthermore, different guilds within the herbivore trophic level may be influenced differently by N addition, predators, and abiotic conditions. |
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The flow of energy from one trophic level to another can be pictured in the form of an energy pyramid. |
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Local extinctions of native species may occur at the invading species' own trophic level or at different trophic levels. |
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The blue marlin occupies a high trophic level, feeding on pelegic and benthic organisms in the ecosystem of the open ocean. |
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The ripple effect will certainly not stop at the boundary of that trophic level or of that level where those stocks feed. |
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The species was chosen as a VEC because of its high trophic level, and its cultural and economic importance to the Inuvialuit. |
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The second trophic level consists of herbivores which eat primary producers. |
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A more comprehensive study may determine temporal and spatial variation in trophic level and contaminant exposure. |
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The position in a food web or food chain that an organism occupies is referred to as its trophic level. |
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However, following the decline of commercial fish stocks, a shift to low trophic level species could exert pressure on the beluga's food sources. |
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The species is being examined as one of potential organic biofilters from the detritivore trophic level. |
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Through biological magnification, mercury concentrations increase with each trophic level of the food chain. |
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Being meat eaters, carnivores are at the top of the food chain and form the highest trophic level within ecosystems. |
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These latter seal species accumulate more contaminants in their tissue because they eat at a higher trophic level with a diet rich in fish. |
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The efficiency at which energy is transferred from one trophic level to another is called ecological efficiency. |
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The site THM1 regularly exhibited the highest metal concentrations among different locations, irrespective of trophic level. |
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Blue whales are low trophic level foragers, consuming between two and four tonnes of prey per day. |
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The authors assume high accuracy for theoretical predictors like molecular clocks and assignments of trophic level. |
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Fish that eat zooplankton could constitute the fourth trophic level, while seals consuming the fish are the fifth. |
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For a systematic treatment of biodiversity within a trophic level, see unified neutral theory of biodiversity. |
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The Atlantic halibut occupies a relatively high trophic level in the food chain. |
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For haddock, a higher trophic level might mean feeding on larger, more nutritious prey that can lead to optimal growth and reproduction. |
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However, determining the trophic level of many plankton is not always straightforward. |
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Simplistic approaches to assess ecosystem effects assume that all of the secondary benthic production that becomes anoxic or hypoxic is lost to the next trophic level of predators. |
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If several test results are available for one species within a trophic level, a median for the species shall be calculated first, and these median values shall be used when calculating the median value for the trophic level. |
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This study provides evidence that conservation of biofilm should be an explicit consideration not only for native invertebrate species but also higher trophic level organisms where food sources overlap. |
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American dippers, even though they fed at a higher trophic level with a diet rich in fish, generally did not have a higher burden of contaminants compared to their Eurasian counterparts. |
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In particular, collection of additional data, which would be useful for interpreting the results with respect to diet, trophic level and other controlling factors, is not included everywhere. |
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The demise of one species or trophic level, leads to changes in others in a rapid sequence that is difficult to foresee. |
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Each level of a food chain represents a different trophic level. |
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