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词汇 megafauna
释义

Definition of megafauna in English:

megafauna

noun ˈmɛɡəfɔːnəˈmeɡəˌfônə
mass noun
  • 1The large mammals of a particular region, habitat, or geological period.

    〔动〕(某地域、栖息地或地质时期的)大型哺乳动物群

    Example sentencesExamples
    • She says that while working on her most recent book, The Ghosts of Evolution, she began to see ‘ghosts’ everywhere - evidence of the lost mammalian megafauna of North America.
    • The great mammalian megafauna are flourishing, and the hominid primates have become increasingly skilled at the use of fire and tool-making.
    • How many would have considered the array of now vanished megafauna, including elephants and lions, that roamed North America before the troublemaker Homo sapiens arrived here just at the end of the Ice Age?
    • Put forward by a team of U.S. biologists, the plan argues for restoring giant mammals, or megafauna, that roamed North America during the last Ice Age.
    • A visitor to America's Yellowstone National Park is sure to spot some of the large mammals, or megafauna, for which the region is justly famous.
    1. 1.1Ecology Animals that are large enough to be seen with the naked eye.
      〔生态〕肉眼足以看见的动物
      Example sentencesExamples
      • A wonderful guide to Pleistocene ecology, this book describes the flora that evolved in association with large mammals, birds, and other megafauna that are now extinct.
      • During the Pleistocene Epoch, which ended about 11,000 years ago, this scavenger dined on the carcasses of mastodons, giant sloths, primitive horses, and other megafauna of the time.
      • The Stegosaurs are a distinctive component of the Jurassic megafauna.
      • The ESA has the ability to protect species ranging from small subalpine plants to large megafauna around the globe but each individual species listed under the ESA may require specialized monitoring programs.
      • These are the megafauna, the big predators of the sea, and the species we most value.

Derivatives

  • megafaunal

  • adjective
    • The Bayesian skyline plot suggests that the bison species went through a severe bottleneck around 10,000 radiocarbon years ago, coincident with the time when many North American megafaunal species went extinct.
      Example sentencesExamples
      • African and Asian elephants are the only members of the Order Proboscidea that were not lost in the megafaunal crisis of the late Pleistocene.
      • In North America two major events occurred at about the same time as the megafaunal extinctions: the planet cooled, and early humans arrived from Asia to populate the continent.
      • One of the classic scientific debates, on a par with ‘nature vs. nurture,’ albeit far more obscure, is the question of what caused the great megafaunal extinction at the end of the Pleistocene.
      • After many decades of debate, the North American end-Pleistocene megafaunal mass extinction remains a lightning rod of controversy.

Definition of megafauna in US English:

megafauna

nounˈmeɡəˌfônə
  • 1The large mammals of a particular region, habitat, or geological period.

    〔动〕(某地域、栖息地或地质时期的)大型哺乳动物群

    Example sentencesExamples
    • A visitor to America's Yellowstone National Park is sure to spot some of the large mammals, or megafauna, for which the region is justly famous.
    • The great mammalian megafauna are flourishing, and the hominid primates have become increasingly skilled at the use of fire and tool-making.
    • Put forward by a team of U.S. biologists, the plan argues for restoring giant mammals, or megafauna, that roamed North America during the last Ice Age.
    • How many would have considered the array of now vanished megafauna, including elephants and lions, that roamed North America before the troublemaker Homo sapiens arrived here just at the end of the Ice Age?
    • She says that while working on her most recent book, The Ghosts of Evolution, she began to see ‘ghosts’ everywhere - evidence of the lost mammalian megafauna of North America.
    1. 1.1Ecology Animals that are large enough to be seen with the naked eye.
      〔生态〕肉眼足以看见的动物
      Example sentencesExamples
      • A wonderful guide to Pleistocene ecology, this book describes the flora that evolved in association with large mammals, birds, and other megafauna that are now extinct.
      • The ESA has the ability to protect species ranging from small subalpine plants to large megafauna around the globe but each individual species listed under the ESA may require specialized monitoring programs.
      • These are the megafauna, the big predators of the sea, and the species we most value.
      • During the Pleistocene Epoch, which ended about 11,000 years ago, this scavenger dined on the carcasses of mastodons, giant sloths, primitive horses, and other megafauna of the time.
      • The Stegosaurs are a distinctive component of the Jurassic megafauna.
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