口诀法
发表于 2025-3-25 03:27:37
https://doi.org/10.1007/978-3-319-50032-4conservation; demographics; natural history; population genetics; studbook analyses; Fish and Wildlife Bi
放弃
发表于 2025-3-25 09:30:23
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是他笨
发表于 2025-3-25 15:03:27
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疏忽
发表于 2025-3-25 18:32:54
Karim A. Malik,David R. Matraversissing on wild species. However, some of these data can be extracted from studbooks. They are referred to as natural history . in this book to distinguish them from data obtained from the wild. Histograms and descriptive statistics such as Tukey five number summary are used to describe characteristi
债务
发表于 2025-3-25 20:21:25
https://doi.org/10.1007/978-3-319-76403-0y not cover both sexes and/or all age groups. Census of sex and age groups relies on characteristics that can be observed under field conditions. These limitations do not apply to studbook census which is based on data from identifiable individuals. Timing of this virtual census is not bound by fiel
FRET
发表于 2025-3-26 00:52:04
A Disciplined Demolition Project,n census counts. Such data can be difficult to obtain for wild populations, but are relatively easy to obtain from studbooks. Crude birth rates that are estimated from birth and census counts provide an idea about the reproductive potential of the population. This measure can be refined, for example
brachial-plexus
发表于 2025-3-26 07:29:14
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协议
发表于 2025-3-26 09:44:11
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柳树；枯黄
发表于 2025-3-26 14:05:04
Digintelligent New Organizationy of life tables, especially those based on small studbooks. The occurrence of a single death within an age class is a Bernoulli process, i.e. an individual is either dead or living at the end of the age class, with the mortality rate as the probability of dying. Simulation experiments using random
paradigm
发表于 2025-3-26 18:06:04
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