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A lek is an aggregation of males that gather to engage in competitive displays that may entice visiting females who are surveying prospective partners for copulation.〔Fiske, P., Rintamaki, P. T. & Karvonen, E. Mating success in lekking males: a meta-analysis. Behavioral Ecology 9, 328–338 (1998).〕 Leks are commonly formed before or during the breeding season. A lekking species is defined by the following characteristics: male displays, strong female mate choice, and the conferring of male indirect benefits. Although lekking is most prevalent among avian species, lekking behavior is found in insects, amphibians, and mammals as well. == Etymology == The term derives from the Swedish ''lek'', a noun which typically denotes pleasurable and less rule-bound games and activities ("play", as by children). English use of ''lek'' dates to the 1860s. Llewelyn Lloyd's ''The Game birds and wild fowl of Sweden and Norway'' (1867) introduces it (capitalised and in single quotes, as 'Lek') explicitly as a Swedish term.〔. Lloyd also loans 'Lek-ställe' (Swedish ''lekställe'') for "pairing ground". 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「lek mating」の詳細全文を読む スポンサード リンク
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