砍伐
发表于 2025-3-30 11:35:15
The Estimation of Productivity and the Construction of Energy Budgets, or energy content, as well as in numbers. Biomass and energy are useful to ecologists in that they provide a common unit for the description of populations of animals and plants of different sizes. Descriptions of the predator in these terms are often essential in studies on the effect of insect pr
混沌
发表于 2025-3-30 15:38:57
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猛然一拉
发表于 2025-3-30 20:10:56
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somnambulism
发表于 2025-3-30 22:38:40
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
上下连贯
发表于 2025-3-31 03:01:01
The Construction, Description and Analysis of Age-specific Life-tables,tudy 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 timespecific life-table.