| 词汇 | tsetse-fly |
| 释义 | tsetse fly noun[ C ] uk /ˈtet.si ˌflaɪ/ us /ˈtet.si ˌflaɪ/ one of various types of African fly that feed on blood and can give serious diseases to the person or animal they bite舌蝇，采采蝇（非洲一种吸吮人和动物血液并传播严重疾病的苍蝇） Oxford Scientific/Photodisc/GettyImages Insect names anopheles ant aphid beastie bedbug deathwatch beetle dragonfly dust mite earwig earworm house dust mite housefly insect jigger ladybird scarab silverfish sow bug spider mite stick insect Examples of tsetse flytsetse fly Macrogeographic population structure of the tsetsefly population groups 3 and 4 to show more diversities than the others. The presence of tsetsefly and the semi-arid conditions of the region had historically precluded settlement by large populations. With the definitions given in the previous section, consider a population where the initial generation consists of one female tsetsefly. The area-wide sampling of tsetsefly, aided by satellite imagery, is the subject of two separate papers. The other estimates varied from two to 41 reproductive females and the lesser estimates are biased because tsetsefly generations greatly overlap. However, there were substantial differences in tsetsefly distribution and density between 1982 and 1996 (figs 2 and 3). In this paper a simple density-dependent reinvasion model is described and used to estimate tsetse fly populations on the basis of removal trapping experiments. They are transmitted between mammalian hosts by the bite of the tsetsefly. It sets out to describe the environmental changes observed over the past 15 years by using recent and historical satellite data and to assess their impact on tsetsefly populations. In these circumstances a stochastic model is preferable and the simple life history of the tsetsefly makes it amenable to modelling as a branching process. Where the geomorphological structure was not well suited to agricultural activity, riverine vegetation and tsetsefly populations were relatively unaffected, even with intense agricultural activity nearby. A study of the tsetsefly problem. It is not disputed that where the tsetsefly and game exist in a territory the keeping of domestic stock is not possible. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 With regard to the tsetsefly, here again we can open up fresh areas for grazing, both by aircraft spraying and by antrycide. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I venture to suggest, in this connexion, that we should not be parsimonious in financing the research work in regard to the tsetsefly. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 See all examples of tsetse fly These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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