易改变
发表于 2025-3-25 04:15:56
Biological StoichiometryRecognizing that at every instant the rate of increase of each species in the system being studied depends on the quantity of that species and of every other species present, as well as the parameters . and ., we have already noted that the analytical expression of this very general proposition takes the form:
commute
发表于 2025-3-25 09:10:38
IntroductionThe species of living organisms are found in a mutual relation one with another, so that in truth it would be impossible to do a well rounded study of any single species without taking into account a considerable number of other species which influence it in one manner or another.
JECT
发表于 2025-3-25 12:33:47
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高度赞扬
发表于 2025-3-25 18:39:30
The Progeny of a Population ElementThe meaning of the result that was just cited will become clear after an examination of the distribution in time of the progeny of a population element.
Boycott
发表于 2025-3-25 20:18:39
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Mechanics
发表于 2025-3-26 01:01:02
Relations Involving the Survival Functions of Two IndividualsThe dissolution of families resulting from the death of one or the other of the parents, or of both, is a sociological and economic problem of the first importance. There is therefore a practical interest in computing the frequency of this demographic phenomenon in its relation to the biometric characteristics of a population
Wernickes-area
发表于 2025-3-26 07:14:05
Analytical Theory of Biological Populations978-1-4757-9176-1Series ISSN 1877-2560 Series E-ISSN 2215-1990
OCTO
发表于 2025-3-26 12:28:06
Smart Innovation, Systems and Technologiesate of increase . without, however, definitively fixing their values. For this a second, independent relation is required. Evidently there exists an essential factor of some sort that up to now has not entered into our computations. That factor is the fertility of the population.
resilience
发表于 2025-3-26 15:24:13
André Thomas,Alexander Pfeifferom their parents, or at least from their mother. In the human species that phenomenon reaches its highest degree and gives rise to the family, an institution whose fundamental influence extends over all phases of the life of the individual, of the community, and of nations.
恶意
发表于 2025-3-26 17:18:44
Defence and Disruptive Technologies Wallace as well, were drawn to the enunciation of the principle of survival of the fittest through reflection on the problem first posed by Malthus: how is the number of living organisms maintained within the limits we in fact observe? By a rather singular coincidence this aspect of the problem of