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| 질의: butterfly | 결과: 260번째/2931 | |
Meadow Brown Butterfly (Maniola jurtina) - Wiki
| 제목: | Meadow Brown Butterfly (Maniola jurtina) - Wiki
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| 해상도: 2000x2000
파일크기: 931503 Bytes
촬영일: 2005:08:12 16:19:54
사진기: Canon EOS 20D (Canon)
F number: f/22.0
Exposure: 1/250 sec
Focal Length: 180/1
등록시간: 2007:10:10 10:51:14
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Meadow Brown
From Wikipedia, the free encyclopedia
[Photo] Meadow Brown Butterfly (Maniola jurtina). Deutsch: Großes Ochsenauge. Source: picture taken by Olaf Leillinger (http://de.wikipedia.org/wiki/User:olei) at 2005-08-12. Location: Dresden, Feldweg am Cosch??tzer Autobahntunnel (Saxony, Germany). Copyright (C) 2005 Olaf Leillinger
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License". |
The Meadow Brown (Maniola jurtina) is a butterfly found in European meadows, where its larvae feed on grasses.
Similar species are Gatekeeper (which prefers to rest with its wings open) and Small Heath (which is smaller).
There is marked sexual dimorphism in this species. Males are less colorful, with smaller eyespots and much reduced orange areas on the upper forewings. They are also much more active and range far about, while females fly less and often may not away from the area where they grew up.
A variable number of smaller eyespots are usually found on the hindwing undersides. These may number up to 12 per individual butterfly, with up to 6 on each wing. The factors that govern polymorphism in this trait are not resolved, although a number of theories have been proposed (Stevens 2005). On the other hand, the evolutionary significance of the upperwing eyespots is more obvious: The more active males have a markedly more cryptic upperside pattern, whereas the females have more often opportunity to present their eyespots in a sudden display of colors and patterns that presumably make neophobic predators hesitate so that the butterfly has better chances of escaping.
http://en.wikipedia.org/wiki/Meadow_Brown
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