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Titlebook: Ecology Of Forest Insects; Andrzej Szujecki Book 1987 PWN — Polish Scientific Publishers 1987 Humus.adaptation.biocoenosis.development.eco

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發(fā)表于 2025-3-21 17:38:00 | 只看該作者 |倒序瀏覽 |閱讀模式
書目名稱Ecology Of Forest Insects
編輯Andrzej Szujecki
視頻videohttp://file.papertrans.cn/302/301324/301324.mp4
叢書名稱Series Entomologica
圖書封面Titlebook: Ecology Of Forest Insects;  Andrzej Szujecki Book 1987 PWN — Polish Scientific Publishers 1987 Humus.adaptation.biocoenosis.development.eco
描述Few branches of the biological sciences have developed to such an extent as has ecology in the recent decades. The successful development of this science is directly related to need to create a sound scientific basis by which we can control our diminishing natural resources and integrate this with the control of biological systems of the component species. Studies on the bioenergetics of ecosystems, as well as on the home- ostatic mechanisms functioning at the populations and biocenoses levels are of great importance in this respect. The results of these studies are very significant in forestry management which deals with multiannual tree communities - forest stands. It is particularly important in this of the necessity for the possible respect for economic planning, in view prolonged maintenance of forest biocenoses as stable systems. Neither in the present nor in the immediate future can be protection of forest ecosystems consisting of natural plant and animal communities be achieved by the cultivation of resistant forms or the intensification of chemical intervention.
出版日期Book 1987
關(guān)鍵詞Humus; adaptation; biocoenosis; development; ecology; ecosystem; environment; fauna; forest; insect; insects; p
版次1
doihttps://doi.org/10.1007/978-94-009-4804-4
isbn_softcover978-94-010-8630-1
isbn_ebook978-94-009-4804-4
copyrightPWN — Polish Scientific Publishers 1987
The information of publication is updating

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Intraspecific relationships of forest insects,iosphere (after the cell and the organism) and exhibits a definite ecological structure. Characteristic demo-graphical phenomena occur in the population and are determined by the fertility and mortality of individuals, as well as their age distribution and quantitative sex proportion. These phenomen
地板
發(fā)表于 2025-3-22 07:31:41 | 只看該作者
Causes and course of changes in the abundance of insect,e causes and course of changes in the abundance of populations have undergone many developments during the recent decades. Studies have gradually been extended to cover the ever-increasing numbers of new species and a knowledge of their geographical and ecological systems has been made possible by t
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Human influence on forest entomocenoses,man influence. It consists of the replacement of specific (i.e. endemic) components by nonspecific, cosmopolitan ones as well as the replacement of native or autochthonous components by foreign or al-lochtonous elements and the substitution of stenotopic components by eurytopic ones. Consequently it
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Problems of the development of entomocenoses under reforestation conditions, of the material. The most frequently employed method is forest recultivation, which is generally preceded by a preliminary restoration of the soil substrate by technical or agrotechnical methods used depending on the toxic properties of heaps or dumping grounds. In the primary phase of afforestatio
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