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Titlebook: Leitfaden Au?enwirtschaft; Rudolf Sachs,Rudolf E. Kamphausen Textbook 1996Latest edition Betriebswirtschaftlicher Verlag Dr. Th. Gabler Gm

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51#
發(fā)表于 2025-3-30 09:28:10 | 只看該作者
Rudolf Sachs,Rudolf E. Kamphausens. Fragment area reductions negatively affected aboveground processes such as herbivory and parasitoidism, whereas leaf litter decomposition and most network parameters were not affected. Edge effects were variable, favoring some insect groups (i.e., ground-dwelling arthropods and parasitoids) and p
52#
發(fā)表于 2025-3-30 16:22:06 | 只看該作者
Rudolf Sachs,Rudolf E. Kamphausention, and anthropogenic disturbance. The distribution of most bee species (73%) is expected to be affected by the threats included in the study. Of all species, 10% are likely to be affected by these threats to a moderate degree or not at all. By 2050, 84%, and 16% of species are expected to decreas
53#
發(fā)表于 2025-3-30 16:47:10 | 只看該作者
Rudolf Sachs,Rudolf E. Kamphausenles from throughout the world illustrate the major needs, approaches and priorities to sustaining a poorly known, diverse and ecologically varied insect heritage of global significance.978-3-030-90136-3978-3-030-90134-9Series ISSN 2509-6745 Series E-ISSN 2509-6753
54#
發(fā)表于 2025-3-30 21:03:47 | 只看該作者
55#
發(fā)表于 2025-3-31 03:31:39 | 只看該作者
Rudolf Sachs,Rudolf E. Kamphausenof species at tri-trophic and multitrophic level in balance of life. The concept of keynote predation has been introduced. And finally, the role of transgenic crops in the context of tri-trophic interaction has been examined by taking few case studies.
56#
發(fā)表于 2025-3-31 07:25:05 | 只看該作者
Rudolf Sachs,Rudolf E. Kamphausenhown to occur in wasps and bumble bees (Mikkola 1978). The intention of this article is to document data on the role of wind as a factor affecting the direction of insect migrations. Examples come from the published and unpublished data gathered by the author in Finland and from the literature.
57#
發(fā)表于 2025-3-31 12:55:22 | 只看該作者
58#
發(fā)表于 2025-3-31 17:09:38 | 只看該作者
59#
發(fā)表于 2025-3-31 19:13:39 | 只看該作者
Rudolf Sachs,Rudolf E. Kamphausenamplitude. A further section then follows to discuss the mechanical basis of active hearing, whereby energy is added to the hearing system to condition its acoustic response, again using available examples. Finally, the chapter concludes with a discussion on the current state-of-the-art in this acti
60#
發(fā)表于 2025-3-31 23:55:11 | 只看該作者
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