Predation of Thick-billed Mures, Uria lomvia, at two breeding colonies by Polar Bears, Ursus maritimus, and Walruses, Odobenus rosmarus
1995; Ottawa Field-Naturalists' Club; Volume: 109; Issue: 1 Linguagem: Inglês
10.5962/p.357586
ISSN0008-3550
AutoresG. M. Donaldson, Gilles Chapdelaine, Jay D. Andrews,
Tópico(s)Marine animal studies overview
Resumoin 1965.He found that the local area where Nasturtium crystallinum was collected is a glaciated region and is not the habitat of any known endemics (see Porsild and Cody 1980).In addition, the area was farmed by a religious community for many years.We believe that Nasturtium crystallinum was introduced from an Asiatic source, possibly China, as a cultivated plant and has now become naturalized locally.Fresh leaves and roots have a pleasant cabbage-taste.We therefore have coined the common name Asiatic Cress for it.Rollins (1962) based his specific epithet of crystallina on the supposed presence of calcium oxalate in the inner tissues of the specimens that he examined.However, the crystals in the material that he saw were of formaldehyde, the specimen preservative used by Thieret and Reich.Other herbarium and liying material did not contain either formaldehyde nor calcium oxalate crystals.The living material collected by Cody in 1965 had 32 somatic chromosomes (voucher, W. J. Cody
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