| 释义 |
spanandry Zool.|ˈspænændrɪ|
[ad. F. spanandrie (P. Marchal 1913, in Ann. des Sci. Nat.: Zool. XVIII. 268), ad. Patristic Gr. σπανανδρία scarcity of population, f. Gr. σπάνις scarcity + ἄνηρ, ἀνδρ- man: see -y3.]
Lack or extreme scarcity of males in a population. Hence spaˈnandric a.
1924Nature 14 June 880/1 A. Vandel: Geographical spanandry in a Branchiopod Crustacean, Lepidarus apus. 1967Science 28 Apr. 483/3 Polygamy is extreme, but, since this follows from the fact that males are produced in much smaller numbers than females, spanandry seems a better term, and is used here. 1976Bull. Entomol. Res. LXVI. 179 (heading) The identity of the greenhouse thrips Heliothrips haemorrhoidalis (Bouché) (Thysanoptera) and the taxonomic significance of spanandric males. 1976Entomol. Meddelelser XLIV. 60 The major types of parthenogenesis: thelytoky, cyclical parthenogenesis,..and spanandry are reviewed. |