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Titlebook: Species Conservation: A Population-Biological Approach; Alfred Seitz,Volker Loeschcke Book 1991 Springer Basel AG 1991 biological.biology.

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Genetic and Phenotypic Variation in Relation to Population Size in Two Plant Species: , and ,,. In addition, substantial genetic differentiation was observed between populations, the differentiation being more extensive among small populations than among large populations. Concerning morphological characters also a positive relationship between the total amount of phenotypic variation and po
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Allozyme Variation and Conservation: Applications to Spiny Lobsters and Crocodilians,netic differentiation is consistent with a hypothesis of local selection pressures. Lack of absolute isolation of populations argues against genetic drift as a significant differentiation mechanism. These data suggest conservation strategies should be considered on a local or regional basis, as well
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Conservation of Amphibian Populations in Britain,nd impact of legislation and public attitude, both as important to conservation as biological aspects, are discussed. Amphibian conservation in Britain still has much to achieve, but the progress is not entirely discouraging.
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,Population Biology of an Invading Tree Species — ,,isturbance, few large Black Cherry trees prevail and little regeneration. This trend can be seen from demographic analyses both in Berlin and Pennsylvania despite their very different vegetation types. From this it is concluded that . will continue to grow in Berlin. The density, however, will be lo
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An Experiment on Dynamic Conservation of Genetic Resources With Metapopulations,sown again in the same location and condition, and the rest is conserved for future analysis. Genetic variability of these evolving populations is investigated for seed protein genes, powdery mildew resistance genes, dwarfing genes, and for several quantitative traits that are selectively important.
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Are There Minimal Areas for Animal Populations?,aster predictions was developed for special demands in practical implementation..A target species should be selected to give qualitative reasons for the protection of areas. Criteria for the selection of target species for conservation were developed which should be modified according to regional co
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