An Altitudinal Study of the Flora of the Inland Mountains of South-East Greenland: Describing the Ammassalik-Kialiip Tasiilaa and Kangersertuaq Areas
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An Altitudinal Study of the Flora of the Inland Mountains of South-East Greenland: Describing the Ammassalik-Kialiip Tasiilaa and Kangersertuaq Areas (1963)
~EN PB NWISBN: 9788763545549 bzw. 8763545543, vermutlich in Englisch, Museum Tusculanum Press, Taschenbuch, neu.
Lieferung aus: Vereinigte Staaten von Amerika, Lagernd, zzgl. Versandkosten.
Prior to 1963 virtually all our knowledge of the flora of south-east Greenland had been gained at low altitudes. However, that year saw the first of seventeen European mountaineering expeditions to the region covered in this volume. Their members rarely had any botanical expertise, but the author of this book was able to persuade most to make collections and record the altitude. This resulted in III collections from altitudes of up to 2480 m, in Schweizerland, which is probably the highest altitude for vascular plants in the Arctic. The region was divided into northern and southern halves, 100 species being recorded from the southern area and 86 from the northern. The altitude range in each was divided into three zones, and the proportion of each of eleven biological distribution types (e.g., low Arctic, high Arctic) was determined for each zone. This showed a clear transition from mainly low-Arctic oceanic montane species in the lower zone to widespread Arctic montane species in the higher zone. Graphs are plotted showing the decrease in the number of species with altitude. When extrapolated, they suggest maximum limits of 2600 m in the south and 2300 m in the north. There is a close correlation between number of species and altitude, with the mean decrease being about two species per 100 m. Records of bryophytes and lichens are included as appendices.
Prior to 1963 virtually all our knowledge of the flora of south-east Greenland had been gained at low altitudes. However, that year saw the first of seventeen European mountaineering expeditions to the region covered in this volume. Their members rarely had any botanical expertise, but the author of this book was able to persuade most to make collections and record the altitude. This resulted in III collections from altitudes of up to 2480 m, in Schweizerland, which is probably the highest altitude for vascular plants in the Arctic. The region was divided into northern and southern halves, 100 species being recorded from the southern area and 86 from the northern. The altitude range in each was divided into three zones, and the proportion of each of eleven biological distribution types (e.g., low Arctic, high Arctic) was determined for each zone. This showed a clear transition from mainly low-Arctic oceanic montane species in the lower zone to widespread Arctic montane species in the higher zone. Graphs are plotted showing the decrease in the number of species with altitude. When extrapolated, they suggest maximum limits of 2600 m in the south and 2300 m in the north. There is a close correlation between number of species and altitude, with the mean decrease being about two species per 100 m. Records of bryophytes and lichens are included as appendices.
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An Altitudinal Study of the Flora of the Inland Mountains of South-East Greenland: Describing the Ammassalik-Kialiip Tasiilaa and
EN PB NWISBN: 9788763545549 bzw. 8763545543, in Englisch, Museum Tusculanum Press, Taschenbuch, neu.
Lieferung aus: Vereinigte Staaten von Amerika, På lager, plus forsendelse.
Die Beschreibung dieses Angebotes ist von geringer Qualität oder in einer Fremdsprache. Trotzdem anzeigen
Die Beschreibung dieses Angebotes ist von geringer Qualität oder in einer Fremdsprache. Trotzdem anzeigen
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An Altitudinal Study Of The Flora Of The Inland Mountains Of South-east Greenland: Describing The Ammassalik-kialiip Tasiilaa And
EN NWISBN: 9788763545549 bzw. 8763545543, in Englisch, Museum Tusculanum Press, neu.
Lieferung aus: Kanada, På lager, plus forsendelse.
Die Beschreibung dieses Angebotes ist von geringer Qualität oder in einer Fremdsprache. Trotzdem anzeigen
Die Beschreibung dieses Angebotes ist von geringer Qualität oder in einer Fremdsprache. Trotzdem anzeigen
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