| 翻訳と辞書 |
| speckled wood butterfly ： ウィキペディア英語版 |
speckled wood butterfly
The speckled wood (''Pararge aegeria'') is a butterfly found in and on the borders of woodland areas throughout much of the Palearctic ecozone.〔 The species is subdivided into multiple subspecies, including ''Pararge aegeria aegeria'',〔 ''Pararge aegeria tricis'', ''Pararge aegeria oblita'', and ''Pararge aegeria insula''.〔 The coloration of this butterfly varies between subspecies. The existence of these subspecies is due to variation in morphology down a gradient corresponding to a geographic cline.〔 The background of the wings ranges from brown to orange, and the spots are either pale yellow, white, cream or a tawny orange. The speckled wood feeds on a variety of grass species.〔 The males of this species exhibit two types of mate locating behaviors: territorial defense and patrolling.〔 The proportion of males exhibiting these two strategies changes based on ecological conditions.〔〔 The monandrous female must choose which type of male can help her reproduce successfully. Her decision is heavily influenced by environmental conditions.〔
==Taxonomy==
The speckled wood belongs to the genus Pararge, which compromises 3 species : ''Pararge aegeria'', ''Pararge xiphia'', and ''Pararge xiphioides''. ''Pararge xiphioides'' occurs on the Canary Islands. ''Pararge xiphia'' occurs on the Atlantic island of Madeira. Molecular studies suggest that the African and Madeiran populations are closely related and distinct from European populations of both subspecies, suggesting that Madeira was colonized from Africa and that the African population has a long history of isolation from European populations. Furthermore, the species ''Pararge aegeria'' compromises four subspecies: ''Pararge aegeria aegeria'', ''Pararge aegeria tircis'',〔 ''Pararge aegeria oblita'', and ''Pararge aegeria insula''.〔 These subspecies stem form the fact that the speckled wood butterfly exhibits a cline across their range. This butterflies varies morphologically down the 700 km cline, resulting in the different subspecies corresponding to geographical areas.
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「speckled wood butterfly」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|