The Relational Nature of Species Concepts

Summary of the essence of the relationship between species concepts: Édouard LeRoy observes the existence of the intellectual movement that is about to break the traditional positivism as early as 1901 and to develop this new positivist program We have set up the task. Paying attention to the fact that the program was held before the Vienna Circle, I worked hard to determine its nature and to evaluate the impact on logical positivism. From this point of view, the discussion between Le Roy, Poincaré, Duhem seems to be longer and more substantial than it is generally thought.

Correction: Many of us are familiar with the concept of species. A species is defined as a group of species that may actually hybridize or hybridize species in nature. The species definition appears to be clipped and dried - it works well for many organisms (such as mammals) - but in many other cases this definition is difficult to apply. For example, many bacteria are mainly asexually propagated. How do you apply the concept of species to them? Many plants and some animals form hybrids in nature, even if they mated predominantly in their own population. Should the occasional crossing groups in selected areas be considered the same species or different species? Since humans invented concepts to help grasp the diversity of nature, the concept of species is ambiguous. For details of the concept of species, see Evolution 101. For more information on concepts of other species, see this trip.

Biological species share common characteristics and classify related organisms capable of mating. This species concept is widely used in biology and related research fields. There are also more than 20 different species concepts. However. Some examples include the concept of ecological species that represent species (ie, their niche) as a group of organisms of dependent resources and all living creatures that can be inherited from genetic traits Contains the concept of genetic species to do. . Genetic differences between common gene pools and populations of that species Similar to the concept of species, the concept of genetic species is based on which individuals can be crossed and the number of genetic differences between species However, it can also be used to estimate the time of origin of species.

There are several ways to define the concept of "species". The choice of definition depends on the specificity of the species involved. For example, some species concepts can be more easily applied to sexual reproductive organisms, others are suitable for asexual organisms. Despite the variety of concepts of diverse species, these different concepts can be placed in one of three broad philosophical approaches: mating, ecology, and phylogeny. The biological species concept (BSC) is a typical example of a hybridization method. BSC was defined by evolutionary biologist Ernst Mayr in 1942 and is "a species is a natural group that may actually or may be crossed and separated from other such groups It is defined as "There is. For example, because these concepts can not be applied to prokaryotes, this is called a species problem.