relationship of marine birds to oceanic fronts off the northeastern United States

technical progress report, April to November 1981 by Kevin D. Powers

Publisher: U.S. Dept. of Energy, Office of Health & Environmental Research, Ecological Research Division, Marine Research Division in Washington, D.C

Written in English
Published: Downloads: 637
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Subjects:

  • Sea birds -- Northeastern States.,
  • Sea birds -- Food -- Northeastern States.,
  • Sea birds -- Geographical distribution.

Edition Notes

StatementK. D. Powers and E. H. Backus ; prepared for U. S. Department of Energy, Office of Health & Environmental Research, Ecological Research Division.
ContributionsBackus, E. H., United States. Dept. of Energy.
The Physical Object
Pagination1 v. (various pagings) :
ID Numbers
Open LibraryOL15523305M

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In this paper, we review studies of the relationship between top predators and fronts in the Southern Ocean north to the subtropics, following definitions in Deacon (). This includes the southern zones of the Indian, Atlantic and Pacific Oceans, from the Subtropical Front to the limit of the Antarctic continent, thus encompassing the Antarctic Circumpolar Current and several associated oceanic by: Fishery Bulletin, 71, POWERS K.

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Relationship of marine birds to oceanic fronts off the northeastern United States. distributions of zooplankton-feeding marine birds off the.

predators and fronts in the Southern Ocean north to the subtropics, following definitions in Deacon (). This includes the southern zones of the Indian, Atlantic and Pacific Oceans, from the Subtropical Front to the limit of the Antarctic continent, thus encompassing the Antarctic Circumpolar Current and several associated oceanic fronts.

During the last 30 years, at-sea studies of seabirds and marine mammals in the oceans south of the Subtropical Front have described an association with major frontal areas. The SPSPA (00°55′10″N, 29°20′33″W) is the only group of Brazilian oceanic islands in the northern hemisphere ( km north of the Equator) ∼ km from the Northeastern Brazilian coast.

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These birds forage on the ground, in shallow water or in shrubs; they will steal food from other birds. They are omnivorous, eating insects, minnows, frogs, eggs, berries, seeds and grain, even small birds.

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A hypothetical community on a barren mid-Atlantic island consists of two fish-eating seabirds (thebooby and the noddy), the fungi and microorganisms that live on the birds' dung, a tick that feedson these two birds, a cactus, a moth that feeds on cast-off feathers, a beetle that lives on dungorganisms, and spiders that eat the other arthropods.

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