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Titlebook: Ecological Methods; With Particular Refe T. R. E. Southwood Book 1978Latest edition T. R. E. Southwood 1978 analysis of variance.animals.bi

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發(fā)表于 2025-3-21 18:13:55 | 只看該作者 |倒序瀏覽 |閱讀模式
書目名稱Ecological Methods
副標題With Particular Refe
編輯T. R. E. Southwood
視頻videohttp://file.papertrans.cn/302/301257/301257.mp4
圖書封面Titlebook: Ecological Methods; With Particular Refe T. R. E. Southwood Book 1978Latest edition T. R. E. Southwood 1978 analysis of variance.animals.bi
描述the virtual impossibility of extracting the many different species from a habitat with equal efficiency by a single method (e.g. Nef, 1960). 1.1 Population estimates Population estimates can be classified into a number of different types; the most convenient classification is that adopted by Morris (1955), although he used the terms somewhat differently in a later paper (1960). 1.1.1 Absolute and related estimates The animal numbers may be expressed as a density per unit area of the ground of the habitat. Such estimates are given by nearest neighbour and related techniques (Chapter 2), marking and recapture (Chapter 3), by sampling a known fraction of the habitat (Chapter 4-6) and by removal sampling and random walk techniques (Chapter 7). Absolute population The number of animals per unit area (e.g. hectare, acre). It is almost impossible to construct a budget or to study mortality factors without the conversion of population estimates to absolute figures, for not only do insects often move from the plant to the soil at different developmental stages, but the amount of plant material is itself always changing. The importance of obtaining absolute estimates cannot be overemphasized
出版日期Book 1978Latest edition
關(guān)鍵詞analysis of variance; animals; biomass; classification; cluster analysis; development; ecology; fauna; ferti
版次2
doihttps://doi.org/10.1007/978-94-009-1225-0
isbn_softcover978-0-412-30710-2
isbn_ebook978-94-009-1225-0
copyrightT. R. E. Southwood 1978
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發(fā)表于 2025-3-21 20:54:19 | 只看該作者
The Sampling Programme and the Measurement and Description of Dispersion,ved) of sampling; the worker will also need to be quite clear as to the exact problem he is proposing to investigate (Lamb, 1958; Morris, 1960; Strickland, 1961). The importance of careful formulation of the hypothesis for test cannot be overstressed.
板凳
發(fā)表于 2025-3-22 00:38:51 | 只看該作者
Absolute Population Estimates using Marking Techniques,sessment of the number of sampling units in the habitat and, as has already been stressed (Chapter 1), it is a wise practice to use more than one method simultaneously. There are also certain other methods of estimating a population that depend on the presence of marked individuals, but use a differ
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發(fā)表于 2025-3-22 11:04:40 | 只看該作者
Diversity, Species Packing and Habitat Description, in respect of many of the methods in Chapter 7. The present chapter aims to describe the methods of handling and analysing data on animal communities (from guilds to continental faunas). Details of the theoretical studies and examples of field work are given in MacArthur and Wilson (1967), MacArthu
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發(fā)表于 2025-3-22 20:36:21 | 只看該作者
Amin Babaei-Ghazvini,Bishnu Acharyaved) of sampling; the worker will also need to be quite clear as to the exact problem he is proposing to investigate (Lamb, 1958; Morris, 1960; Strickland, 1961). The importance of careful formulation of the hypothesis for test cannot be overstressed.
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發(fā)表于 2025-3-22 22:42:23 | 只看該作者
https://doi.org/10.1007/978-3-031-42137-2sessment of the number of sampling units in the habitat and, as has already been stressed (Chapter 1), it is a wise practice to use more than one method simultaneously. There are also certain other methods of estimating a population that depend on the presence of marked individuals, but use a differ
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發(fā)表于 2025-3-23 03:22:07 | 只看該作者
https://doi.org/10.1007/978-1-349-11882-3tudy of human populations are also those of greatest significance to the animal ecologist. Because many insects have discrete generations and their populations are not stationary, the age-specific life-table is more widely applicable than the time- specific life-table.
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發(fā)表于 2025-3-23 06:06:34 | 只看該作者
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