“semelparous”的英文意思_释义_用法

单词

semelparous

释义

semelparous, a. Biol.|ˈsɛməlpərəs|
[f. L. semel once + -parous.]
Of or designating a species or organism which reproduces only once during its lifetime. Cf. *iteroparous a.
1954L. C. Cole in Q. Rev. Biol. XXIX. 118/1 Nearly all annual plants and animals, as well as many protozoa, bacteria, insects, and some perennial forms such as century plants and the Pacific salmon, are semelparous species.1966G. C. Williams Adaptation & Nat. Selection vi. 175 The origin of semelparous life cycles is one aspect of the evolution of aging.1970Amer. Naturalist CIV. 8 Among the perennial organisms the two strikingly different kinds of life-history strategies are the repeated reproducers, or iteroparous organisms, and the big-bang reproducers, or semelparous organisms.1984Nature 26 July 271/2 These plants [sc. some purported biennials] are more properly described as semelparous (single-reproducing) perennials.

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