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Titlebook: Biological Management and Conservation; Ecological Theory, A M. B. Usher Book 1973 M. B. Usher 1973 Europe.Inversion.classification.ecosyst

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發(fā)表于 2025-3-21 19:47:37 | 只看該作者 |倒序?yàn)g覽 |閱讀模式
期刊全稱Biological Management and Conservation
期刊簡稱Ecological Theory, A
影響因子2023M. B. Usher
視頻videohttp://file.papertrans.cn/188/187391/187391.mp4
圖書封面Titlebook: Biological Management and Conservation; Ecological Theory, A M. B. Usher Book 1973 M. B. Usher 1973 Europe.Inversion.classification.ecosyst
影響因子Whilst I have been writing this book two developments have been occur- ring which have influenced ecological thinking, and which undoubtedly will have a great impact on ecologists in the future. One of these developments concerns the relation between the ecologist and the public. On the public‘s side there has been an increasing aware- ness of ecological processes, and more emphasis on subjects such as the environment and pollution in newspapers and magazines. Maybe it was European Conservation Year 1970 (ECY 1970) that succeeded in stimu- lating this interest. On the ecologist‘s side there has been a search for the relevance of his research in the world of today. The concern for relevance has been clearly reflected in the ‘Comments‘ that have been written for the first few parts of the British Ecological Society‘s members‘ bulletin. The word ‘conservation‘ has been widely used in the context of this relation between the public and the ecologist; indeed it might well be said that the word has been over-used, being applied to any form of protectionist operation. The second of the developments concerns the quantification of eco- logical processes. Statistical analysis of experimental
Pindex Book 1973
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Auswahl eines geeigneten Klebstoffs, species on the edge of its geographical range and for the same species clearly within its range. The geographical study of distribution has been the subject of some theoretical treatment, especially in relation to island biogeography, and this will be discussed later in this chapter.
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Classification of Ecosystemsrasted, and from which predictions could be made about similar communities. The work of the European foresters amply illustrates this point. They classified forests by the tree species and the ground flora, and then having erected the forest classes they were able to apply the production data from sample plots to other forests in the same class.
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https://doi.org/10.1007/978-3-322-91970-0it has two generations per year which are on the wing in May and during August and September. This is particularly clearly seen when the data are plotted as a graph of monthly catch against time, see Fig. 2.1 (.).
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