External nutrient inputs into terrestrial ecosystems of the Falkland Islands and the Maritime Antarctic region.

S.F. Bokhorst, A. Huiskes, P. Convey, R. Aerts

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Abstract

Antarctic terrestrial ecosystems are nutrient-poor and depend for their functioning in part on external nutrients. However, little is known about the relative importance of various sources. We measured external mineral nutrient sources (wind blown material, precipitation and guano) at three locations, the cold temperate oceanic Falkland Islands (51°76′S), and the Maritime Antarctic Signy (60°71′S) and Anchorage Islands (67°61′S). These islands differ in the level of vegetation development through different environmental constraints and historical factors. Total mineral nitrogen input differed considerably between the islands. During the 3 month summer period it amounted to 18 mg N m
Original languageEnglish
Pages (from-to)1315-1321
JournalPolar Biology
Volume30
DOIs
Publication statusPublished - 2007

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