Postflood Speciation

During the time after the flood, there would be a large number of new habitats available to plants and animals that did not exist before the flood. This would have brought about a period of rapid speciation as the major characteristics for animal species were bred out to match those environments.

Because of the limited number of animals that were contained on the Ark and the many species found today, evolutionists have suggested there must be some form of “ultra-fast evolution” or “super fast post-flood adaptation” to make this amount of speciation occur in only 4,500 years. However, this thinking is flawed. They are using the evolutionary means of mutation, adaptive radiation, and genetic build-up to bring about the changes necessary to produce these many species.Instead, creationists view this a selection of already existing genetic traits which does not take long periods of time.

Adaptive Radiation is an evolutionary process. It implies mutation and change of form over long periods of time. Acclimation is changing within one individuals ability to fit into an environment. Acclimitization is the ability of a group to fit into an environment over time. Both involve the process of selecting the best genes for the habitat or niche – and this does not involve long time scales, mutation, or change of basic form. It is breeding out the best characteristics for that environment.

Post-Flood Speciation probably was somewhat rapid. As each Kind moved away from the ark, it would encounter different habitats and within each habitat certain genes were selected for that habitat. Then, the types within each of those habitats would find micro-habitats or niches to settle into and further get a refined set of characteristics and start appearing as we call species today.

If we assume there are 50 kinds of beetle that may have been on the ark, and assume there are about 300,000 species of beetle today, then a simple average would be about 6000 species of beetle for each kind on the ark. 6000 species over a 4,500 year period is not that difficult to breed out. Consider that in the last two centuries or so man has bred out hundreds of types of dogs.

Founder Effect

This type of dispersal includes what is commonly called Founder Effect in population genetics. When only a few individuals of a larger population move into a new habitat or territory and reproduce independently of the larger population, the group incurs a reduced genetic variation. It is a genetic bottleneck at the local level. This can cause the local group to have a differing genotype (allele frequency) and phenotype (appearance).

A serial Founder Effect occurs when a small part of the local population moves out and forms and even smaller population. This typically happens when populations migrate over long distances rapidly followed by periods of settlement. Each settlement has its own unique subset of the original group.

As habitats become full, the period of rapid speciation slows and even stops. When habitats change, then speciation rates speed up again. Therefore, there is an ecological limit to the number of species a Kind can have.

XXXIIB. Last Updated: 08/01/2016
Todd Elder

Todd Elder

Todd Elder has a deep desire to understand and experience Creation. As a Baraminologist, his current research includes developing the Katagenos Species Concept, the Natanzera Classification System, and the Floral Formula Method of determining Plant Kinds. As an author and speaker, his books and seminar materials are designed to encourage a growing relationship with the Creator.
Todd Elder

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