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单词 spanandry
释义

spanandryn.

/ˈspanandri/
Etymology: < French spanandrie (P. Marchal 1913, in Ann. des Sci. Nat.: Zool. XVIII. 268), < Patristic Greek σπανανδρία scarcity of population, < Greek σπάνις scarcity + ἄνηρ , ἀνδρ- man: see -y suffix3.
Zoology.
Lack or extreme scarcity of males in a population.
ΘΚΠ
the world > animals > family unit > [noun] > male > lack of males
spanandry1924
1924 Nature 14 June 880/1 A. Vandel: Geographical spanandry in a Branchiopod Crustacean, Lepidarus apus.
1967 Science 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.
1976 Entomol. Meddelelser XLIV. 60 The major types of parthenogenesis: thelytoky, cyclical parthenogenesis,..and spanandry are reviewed.

Derivatives

spaˈnandric adj.
ΘΚΠ
the world > animals > family unit > [adjective] > male > lack of males
spanandric1976
1976 Bull. Entomol. Res. 66 179 (heading) The identity of the greenhouse thrips Heliothrips haemorrhoidalis (Bouché) (Thysanoptera) and the taxonomic significance of spanandric males.
This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018).
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n.1924
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