Wiley, Edward O., III Natural History Museum, University of Kansas, Lawrence, Kansas.
- Kinds and particulars
- Concepts and theories
- Types of species concepts
- Links to Primary Literature
- Additional Readings
The idea that the diversity of nature is divisible into a finite number of definable species. In general, species concepts grow out of attempts to understand the very nature of biological organization above the level of the individual organism. There are two basic questions: (1) What does it mean to be a species in general? Do all species have certain characteristics, such as forming genealogical lineages, just as all atoms have certain characteristics, such as the ability to undergo chemical reactions? (2) What does it mean to be a particular species? The first question addresses species concepts. The second question addresses how to apply a species concept to living organisms of the world. Does the name Homo sapiens apply to a group of organisms existing in nature? If so, does it belong, as a member, to a natural kind that can be characterized by some set of properties? The difference between the questions of what it is to be a species in general versus what does it mean to be a particular species represents the dividing line between what it is to be a natural kind and what it is to be a natural individual. To understand this distinction, we must first take up the more general question of the nature of kinds. We can then return to the question of species concepts. See also: Speciation
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