Distribution and endemicity patterns of Mexican dragon- and damselflies (Insecta: Odonata).

Distribution patters are important because they illustrate the history, in terms of time and space, of living organisms. The importance of the interaction between life, time and space, has been summarised by Léon Croizat: “Earth and life evolve together”. Much can be gained by investigating the distribution patterns of living organisms in nature, because one may find the explanations to the constant repetition of their distributions. Biogeography studies the distribution (in time and space) of living organisms. It also investigates the causes and processes that determine such patterns. In 1820, de Candolle proposed the system of biogeographic...

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