| Sharks, like all top predators, play a critical role in keeping the marine food web in balance. |
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| This food web is taken to the extreme in the Pogonophora tube worms that are found at some vents. |
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| Most of these studies have focused on linear food chains, although natural food chains are seldom isolated from the surrounding food web. |
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| Finally, our understanding of the trophic structure of the ecosystem was greatly advanced by following the tracer through the food web. |
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| The net effect is a vast area poor in resources, an effect that makes itself felt throughout the food web. |
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| Another difference between models is in the method of controlling the connectance of a food web system. |
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| Tiny aquatic organisms called phytoplankton live in the ocean, providing the basis for the food web. |
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| In the Great Lakes ecosystem, PCBs have bioaccumulated in the aquatic food web, especially in predator fish and in the fatty tissues of humans. |
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| These references are listed by category, e.g., limnological methods, abiotic frame, food web interactions. |
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| With this in mind, it is easy to see that green plants are the base of the food web. |
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| Oil can poison O. orca directly or contaminate the food web upon which they rely. |
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| The aquatic invertebrates form the base of the food web, necessary food for most small fish species and many bird species. |
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| When planktivorous fish dominated the food web, large zooplankton were rare and nutrient enrichment produced positive values of NEP by all three methods. |
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| Some of the carbon is given off as carbon dioxide gas, but much of it remains locked up in organic molecules that help sustain the rest of the food web. |
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| Oceanographic phenomena, such as the deep water upwelling that takes place here, are favourable to the entire food web. |
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| This is largely due to the short food chains in the northern terrestrial food web. |
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| And other scientists are researching the effects microplastics have on the food web and our health. |
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| The structure of a food web also affects the stability of the system. |
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| This tiny creature can disrupt an entire food web and affect water quality. |
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| These organisms form the important class of decomposers within the food web, without which cellulose would continue to accumulate in the environment. |
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| Ecologically significant species tend to be keystone species that play a central role in the structure of the terrestrial food web. |
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| The whole food web becomes bollixed when you take out the top-level predator. |
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| Understanding this food web is essential in understanding how many healthy fish the lake can support. |
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| Mercury compounds are more concentrated in fish and wildlife predators feeding high in the food web. |
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| Summary: Wild salmon are vital for our First Nations, our food web and our environment, and must be preserved. |
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| It caused certain native species of fish to go near to extinction, including very important fish that are also at the base of the food web. |
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| This review examines proponent submissions concerning baseline aquatic food chain or food web. |
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| A common metric used to quantify food web trophic structure is food chain length. |
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| Oysters influence nutrient cycling, water filtration, habitat structure, biodiversity, and food web dynamics. |
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| Once in the food webs, these pesticides can cause mutations, as well as diseases, which can be harmful to humans as well as the entire food web. |
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| The plumes could impact zooplankton and light penetration, in turn affecting the food web of the area. |
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| This new ecological food web grew even more complex. |
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| Salt marshes play a large role in the aquatic food web and the delivery of nutrients to coastal waters. |
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| Populations of Sesarma reticulatum are increasing, possibly as a result of the degradation of the coastal food web in the region. |
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| These phytoplankton blooms support the marine ecosystem, as the base of the marine food web, and eventually the larger fish species. |
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| This information is vital in helping us assess how changes in environment and climate might affect the Arctic marine food web and in turn the human populations that depend on it. |
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| With games like the food web game and a big earth beach ball toss, the immensity of the ocean and the interconnectivity of all life was illustrated with fun and good humor. |
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| The effect of organic enrichment in sediments is to move the system to one dominated by bacteria, ciliates and meiofauna, and where the trophic links to the next level of the food web are broken. |
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| Understanding the lower food web is important for managing Lake Superior's aquatic ecosystem because it is the base of the aquatic food pyramid that prey and predator fish depend on. |
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| Their participation in a stable food web was definitely a factor. |
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| Phytoplankton are critical to the marine food web, being the primary producers of food for the oceanic food web, from zooplankton to fish and shellfish to whales. |
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| Without robust soil ecosystems, the world's food web would be in trouble. |
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| Older students can make a food web of boreal plants and animals. |
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| A research and monitoring strategy for the Gully, including research to better understand the Gully food web and links with other areas will be developed. |
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| Other migratory species, however, are more vulnerable: the recruitment of American Eel, historically important to the fluvial food web as well as being of economic value, fell two orders of magnitude in less than 25 years. |
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| The domino effect of this widespread disturbance to the natural food web is still widely felt today, despite reintroduction efforts and strict hunting policies. |
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| These chemical substances are transported across international boundaries far from their sources and they persist in the environment, bioaccumulate through the food web, and pose a risk to human health and the environment. |
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| Retrospective analysis also allows scientists to identify changes in food web contaminant pathways caused by changes in land use, invasive species or climate change-also essential for assessing risk to our environment. |
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| This species is an important component of the food web in the tundra ecosystem and a fine example of complex physical and behavioural adaptations to the extreme conditions of this environment. |
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| Among the current suspects are more natural causes: a neurotoxin produced by algae that can be transmitted through the food web and a warm autumn followed by sudden cold, or a combination of the two. |
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| Colonial aquatic birds are good indicators of contamination and ecosystem health because they are near the top of the food web and they are generally abundant and easy to sample. |
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| Food chain length and omnivory determine the stability of a marine subtidal food web. |
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| This earless seal can be found in just one place, Russia's Lake Baikal, where it is at the top of the food web. |
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| Thus, energy is lost to the food web when the shell is produced by the mussel, and also lost when it is handled and egested by fish. |
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| The concluding section addresses ecological network analysis, and offers a prospectus for future aquatic food web studies. |
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| This end of the food web includes crustaceans and small fish, as well as phytoplankton and other microorganisms. |
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| At the base of the food web are phytoplankton, or tiny plants and plantlike organisms that drift through the ocean. |
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| Phytoplankton serve as the base of the aquatic food web, providing an essential ecological function for all aquatic life. |
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| These fisheries rely on the productivity of the Bering Sea via a complicated and little understood food web. |
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| In the bacteria-based food web, protozoa, bacterivorous nematodes, and collembolans showed a significant correlation with bacteria. |
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| In the fungi-based food web, collembolans, oribatids, and fungivorous nematodes were positively correlated with fungi. |
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| Benthic macroinvertebrates have many important ecological functions, such as regulating the flow of materials and energy in river ecosystems through their food web linkages. |
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| That's because this critter is at the heart of Antarctica's food web. |
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| Natural interconnections between food chains make it a food web. |
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| Bear Island was the site of a pioneering ecological study by Victor Summerhayes and Charles Elton in the early 1920s, which produced one of the first food web diagrams. |
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| Seasonal composition and food web relationships of marine organisms in the nearshore zone of Kodiak Island including ichthyoplankton, meroplankton, zooplankton, and fish. |
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| Their hankering for such items makes Banana Slugs play an important role in maintaining a healthy forest food web, through their spreading of seeds and spores. |
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