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Evolution of a Key Trait for Species Diversity: Body Size

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Evolutionary Biology of Carabus Ground Beetles

Part of the book series: Entomology Monographs ((ENTMON))

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Abstract

We have seen that body size and genital morphology are the key traits for reproductive isolation in Ohomopterus species because differences in these traits promote mechanical reproductive isolation. In particular, differences in body size are effective for preventing heterospecific copulation and thus hybridization and promote sympatric coexistence of different-sized species. Body size is one of the most important adaptive traits of all organisms; it possesses multiple functions and is exposed to a variety of selection pressures. In this chapter, the selective forces affecting the evolution of body size in Ohomopterus beetles will be considered. In addition, the current knowledge regarding the genetic basis of body size variation will be presented.

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Correspondence to Teiji Sota .

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Sota, T. (2022). Evolution of a Key Trait for Species Diversity: Body Size. In: Evolutionary Biology of Carabus Ground Beetles. Entomology Monographs. Springer, Singapore. https://doi.org/10.1007/978-981-16-6699-5_7

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