AMERICANARUM DIATOM ARUM EXSICCATA: FASCICLE II (CANA), VOUCHER SLIDES REPRESENTING 34 LAKES, PONDS AND STREAMS FROM ELLESMERE ISLAND, CANADIAN HIGH ARCTIC, NORTH AMERICA

1994 ◽  
Vol 9 (2) ◽  
pp. 303-327 ◽  
Author(s):  
P. B. Hamilton ◽  
M. Poulin ◽  
C. Prévost ◽  
M. Angell ◽  
S. A. Edlund
Keyword(s):  
North America ◽  
High Arctic ◽  
Ellesmere Island ◽  
Canadian High Arctic

Carbon sources for lake food webs in the Canadian High Arctic and other regions of Arctic North America

Polar Biology ◽  
2010 ◽  
Vol 33 (8) ◽  
pp. 1111-1123 ◽  
Author(s):  
John Chételat ◽  
Louise Cloutier ◽  
Marc Amyot
Keyword(s):  
North America ◽  
Food Webs ◽  
Carbon Sources ◽  
High Arctic ◽  
Canadian High Arctic

Ellesmerian and Eurekan fault tectonics at the northern margin of Ellesmere Island (Canadian High Arctic)

2013 ◽  
Vol 164 (1) ◽  
pp. 81-105 ◽  
Author(s):  
Karsten Piepjohn ◽  
Werner von Gosen ◽  
Andreas Läufer ◽  
William C. McClelland ◽  
Solveig Estrada
Keyword(s):  
High Arctic ◽  
Ellesmere Island ◽  
Canadian High Arctic ◽  
Northern Margin ◽  
Fault Tectonics

scholarly journals Evidence of a Periodic Ice-Cliff Avalanche on North-West Ellesmere Island, N.W.T., Canadian High Arctic

1987 ◽  
Vol 33 (113) ◽  
pp. 68-71 ◽  
Author(s):  
D. J. A. Evans ◽  
T. G. Fisher
Keyword(s):  
High Arctic ◽  
Ellesmere Island ◽  
Canadian High Arctic ◽  
Periodic Activity ◽  
North West ◽  
Ice Cap ◽  
Melt Water

AbstractEvidence of a recent (1985) ice-cliff avalanche from an outlet lobe of a small plateau ice cap on north-west Ellesmere Island is discussed. Former avalanche events are evidenced by debris lying outside the 1985 avalanche material. Periodic activity seems to be linked to the build-up of melt water in the crevasses of the outlet lobe during the melt season. The exact magnitude and frequency of events are unknown. Some implications to geomorphology and the sedimentology of sub-polar glaciers are discussed.

Flowers, insects, and pollination ecology in the Canadian high Arctic

Polar Record ◽  
1973 ◽  
Vol 16 (104) ◽  
pp. 667-674 ◽  
Author(s):  
Peter G. Kevan
Keyword(s):  
High Arctic ◽  
Pollination Ecology ◽  
Ellesmere Island ◽  
Ecological Problem ◽  
Canadian High Arctic ◽  
Mountain Ranges ◽  
The North ◽  
Low Arctic ◽  
Work Done

The following report is based on work done in conjunction with the Canadian “Operation Hazen-Tanquary” at Hazen Camp (81° 49'N, 71° 18'W), Ellesmere Island, NWT, in the summers of 1966, 1967, and 1968. Hazen Camp offers an excellent high Arctic site because of the extensive facilities available and because the botany and entomology are comparatively well known and some insect-flower relationships there have already been considered. Furthermore, the Lake Hazen trough, sheltered by mountain ranges to the north, enjoys less cloudy and more benign summers than most high Arctic localities. These factors contribute to the support of a biota that is relatively rich for the high Arctic, even though the ecosystem is considerably simpler than in the low Arctic. There are only about 75 species of Dicotyledoneae and about 250 species of Arthropoda to consider, which makes it possible for one man to investigate such a broad ecological problem as insect-flower relations.

The Lepidoptera of Greenland; Some Geographic Considerations

1966 ◽  
Vol 98 (11) ◽  
pp. 1135-1144 ◽  
Author(s):  
J. A. Downes
Keyword(s):  
North America ◽  
Vascular Plants ◽  
Large Fraction ◽  
High Arctic ◽  
Oceanic Island ◽  
Ellesmere Island ◽  
The Arctic ◽  
Baffin Island ◽  
The North ◽  
Almost All

AbstractFrom the revised list of the Lepidoptera of Greenland and from recent work in Ellesmere Island it is shown that almost all the species found in high arctic Canada occur also in Greenland, predominantly in the north, and that this high arctic element constitutes a large fraction of the fauna of Greenland as a whole. It is suggested that this part of the fauna originated entirely from the nearctic by the little-interrupted land route across the arctic islands. The poverty of southerly Lepidoptera in Greenland stands in sharp contrast. It is illustrated by a comparison with the vascular plants and by other comparisons with the Lepidoptera found in the corresponding life zones in North America, and this section of the paper includes the first published list of the Lepidoptera of Baffin Island. It is suggested that this southerly fauna is of adventitious origin, by casual dispersal from overseas (Labrador, Iceland) or perhaps in a few cases by introduction by man. Thus Greenland, in respect of its fauna of southerly type, is an oceanic island of post-glacial age. Similar evidence suggests that Iceland also has been populated mainly in the same way. The conclusions derived from the Lepidoptera apply to several other groups of insects and also to the mammals, including man.

Collembola of the Canadian high arctic. Review and additional records

1986 ◽  
Vol 64 (10) ◽  
pp. 2386-2390 ◽  
Author(s):  
Arne Fjellberg
Keyword(s):  
New Records ◽  
High Arctic ◽  
Ellesmere Island ◽  
Canadian High Arctic

A revised list of species from the Queen Elizabeth Islands is given, including new records from Ellesmere, Devon, Cornwallis, Bathurst, King Christian, and Ellef Ringnes islands. Fifty species are reported (43 named and 7 unnamed), with the highest number from Ellesmere Island (41). About 75% of the species in the area have a circumpolar or holarctic distribution.

Sign in / Sign up

Export Citation Format

Share Document