History of the British FloraThe chief aim of this book is the reconstruction of the processes and events that have determined the present flora and vegetation of the British Isles, first of all through the long ages when natural conditions prevailed and cycles of glaciations and recessions and slow geological processes were in charge, and afterwards through the nearer and much shorter span of time during which, from the Neolithic onwards, human interference has progressively and severely altered the scene. This is an exercise in biogeography that Darwin called 'that grand subject, that almost keystone to the laws of nature'. But instead of adopting Darwin's conjectural approach, based largely on circumstantial evidence, what this 1975 second edition achieves is a factual reconstruction of events by records of the actual presence of individual species or genera, in large numbers, at particular sites and specified times through the geological and historic record. |
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abundant Arctic Arctic-alpine Atlantic period Betula birch Boreal Boreal period Britain British Isles Carex Clacton clay clearance climatic Continental Corylus Cromer Forest Bed Cromerian deposits distribution Earith England Europe evidence F VIII Flandrian Flandrian records Flandrian zone flora Forest Bed series fossil record Freshwater muds fruit genus glacial stages Godwin habitats Hoxne Hoxnian interglacial Hultén identification indicate Ipswichian interglacial Ireland Iron Age Jessen & Helbaek Kilbeg Late Bronze Age Late Weichselian Late Weichselian zone Loch macros mediaeval middle Flandrian Middle Weichselian Nazeing Neolithic Norfolk northern occurs peat period pine Pinus plant Pleistocene pollen analysis pollen diagrams pollen frequencies pollen records present radiocarbon dating raised bog range regions Reid Roman Salix Scandinavia Scotland seeds selian shew shewn Silchester soils southern species Sphagnum Sub-atlantic sub-stage tentative throughout the British Tilia vegetation viia Wales Weichselian records West Wolstonian woodland Wretton zone viib
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Page 503 - Andersen ST 1961 — Vegetation and its environment in Denmark in the early Weichselian Glacial (Last Glacial).