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Biogeography in the Sub-Arctic - The Past and Future of North Atlantic Biota (Hardcover)
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Biogeography in the Sub-Arctic - The Past and Future of North Atlantic Biota (Hardcover)
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There is no escaping the fact that the island biogeography of the
North Atlantic Region is singularly peculiar. Sitting in the north
of the Atlantic Ocean, these islands have been subjected to
largescale shifts in climate over the last few million years,
unlike the other island groups further south which were likely more
buffered from the vicissitudes of Quaternary climate changes.
Uniquely for a group of islands there is only one documented
extinction in the North Atlantic (the Great Auk), and those in the
insects are local events relating to species that are distributed
throughout the Palaearctic region. Over half the insect species in
Iceland and Greenland are introduced. The faunas, excluding
Greenland, are predominantly of Palaearctic origin and have close
affinities with the faunas of Scandinavia and the British Isles
and. These unique physical and biological characteristics have
interested biologists and biogeographers for centuries. The key
debates concerning the biogeography of the North Atlantic islands
still rumble on: Do the biota reflect cryptic refugia or otherwise,
or tabula rasa and recolonization? How important were human
communities in shaping the existing biota and biogeographical
patterns? Throw into this mix current concerns over global warming,
and we can now ask, how resilient is the biota to change, either
natural or anthropogenic? This volume draws together a range of
researchers with longstanding research interests in the region,
from diverse academic backgrounds, to evaluate some of these
questions.
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