Jordan's laws
提供: 広島大学デジタル博物館
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Definition
"A Dictionary of Ecology, Evolution and Systematics (2nd ed.)" by Lincoln et al. (1998)
- 1: That the closest relatives of a species are found immediately adjacent to it but isolated from it by a geographical barrier. 2: That individuals of a given fish species develop more vertebrae in a cold environment than in a warm one.