| 释义 |
iteroparous, a. Biol.|ˈɪtərəʊˌpærəs|
[f. itero- (f. stem of L. iterum again + -o + -parous.]
Characterized by or designating the production of multiple sets of offspring; usu. applied to organisms or taxonomic groups in which the production of young occurs more than once during the life-cycle. Cf. *semelparous a.
1954L. C. Cole in Q. Rev. Biol. XXIX. 118/1 Iteroparous species include some, such as small rodents, where only two or three litters of young are produced in a lifetime, and also various trees and tapeworms where a single individual may produce thousands of litters. 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. 1979Nature 7 June 554/1 For iteroparous plants it is often possible to show that reproduction has costs that are expressed in a reduced growth rate and/or an increased death rate. 1989Functional Ecol. III. 646 For long-lived, iteroparous organisms fitness will always be extremely difficult to measure.
So ˌiteroˈparity n., the state or condition of being iteroparous.
1954L. C. Cole in Q. Rev. Biol. XXIX. 118/1 The writer proposes to employ the term semelparity to describe the condition of multiplying only once in a lifetime... The contrasting condition will be referred to as iteroparity. 1975E. O. Wilson Sociobiol. xvi. 338/2 Iteroparity is the rule in the vertebrates. 1987Amer. Naturalist CXXIX. 498 Withholding energy investments may allow females to avoid energy depletion during egg laying and permit increased iteroparity. |