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 ecosystem ['i:kәu,sistәm]   添加此单词到默认生词本
n. 生态系统

[医] 生态系


  1. An organism, often a bacterium or fungus, that feeds on and breaks down dead plant or animal matter, thus making organic nutrients available to the ecosystem.
    腐生菌;腐生物一种有机物,通常是细菌以死的动植物为食并把它们分解,藉此为生态系统提供有机养分
  2. Water is the core of a healthy ecosystem.
    水是维持生态系统良性循环的根本。
  3. Have you ever to Liangfeng Ecosystem Park?
    你曾经到过梁丰生态园吗?


ecosystem
[ noun ]
a system formed by the interaction of a community of organisms with their physical environment
<noun.group>


  1. While some may dismiss the oyster as nothing more than a delicacy, Ray, who has a doctorate in biology, says oyster beds are significant in an estuary's ecosystem.
  2. If the Alpine economy lives on tourism, its ecosystem is choking on it.
  3. "We will look at the total ecosystem and how to best manage wildlife.
  4. "It is a beautiful and interesting primate," Beck said. "But probably more important is, if it can survive, virtually the entire ecosystem can survive." The golden lion tamarin is what biologists call a flagship species.
  5. For one thing, there is considerable debate about the cause of the smelt's decline, and about how crucial smelt are to the ecosystem of the delta they inhabit, formed by the Sacramento and San Joaquin rivers as they spread out into San Francisco Bay.
  6. But the territory also contains precious minerals in its soil and riverbeds, mainly gold and uranium, and the quest for them and the riches they bring threatens a fragile ecosystem and the last of the forest Indians whose way of life goes back millenia.
  7. The Fish and Wildlife Service's decision to declare the owl a threatened species in June "sounded a warning that within our lifetime an entire ancient ecosystem may be lost forever," Mitchell said.
  8. The industry wants to drill for the estimated 3.2 billion barrels of oil that may be under the refuge; preservationists vow to protect the one-of-a-kind ecosystem on top.
  9. The microscopic phytoplankton and zooplankton that form the basis of the marine ecosystem are especially sensitive to such toxins.
  10. Park officials say sponges are an irreplaceable component of a delicate marine ecosystem.
  11. Park officials have testified in public hearings and before Congress that some activities of the church threaten the greater Yellowstone ecosystem.
  12. Eradication programs must safeguard human heath and preserve the ecosystem.
  13. Environmentalists say only 10 percent of the Northwest's ancient forests remain and the declining numbers of owls signal the disappearance of an entire ecosystem.
  14. A decline in the rattlesnake population "could cause a general collapse of an ecosystem," Barker said.
  15. This 100-mile-long area contains the only remaining undisturbed Arctic ecosystem left in North America.
  16. The worst possibilities appear to be "to disrupt a fundamental ecosystem process," it said.
  17. Former Park Service Director William Penn Mott Jr. strongly supported the return of wolves to Yellowstone, and the park's superintendent, Bob Barbee, has called the animals the "missing link" in the park's ecosystem.
  18. A botanist has begun a two-to-three-week stay inside an airtight, steel-and-glass enclosure that with its own ecosystem and atmosphere is a possible prototype for space colonization.
  19. As for hunters in the forests surrounding Yellowstone, the study says sport hunting would not have to be eliminated for any herd or species in the Yellowstone ecosystem.
  20. If this is true, said Sullivan, it could have an impact on krill, which is a key animal in the polar ecosystem.
  21. The oil spill that has blackened much of the rich ecosystem of Prince William Sound has drawn an army of scientists who say a lethal combination of weather, topography and chemistry have conspired against the environment.
  22. Loggers have already removed too many trees, threatening the forest's fragile ecosystem, protesters said.
  23. Its diverse ecosystem is home to thick populations of grizzly and black bear, deer and bald eagles.
  24. That deal broke down last month amid disputes between environmentalists and sugar growers over details. But Mr Bruce Babbitt, interior secretary, said the Everglades were a test case for US ability to restore an ecosystem.
  25. There will still be extensive damage to the fragile ecosystem of the Persian Gulf.
  26. Although better information is available at the two California sites, further studies on potential ecosystem damage is needed there as well.
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