| 翻訳と辞書 |
| Nigronia serricornis ： ウィキペディア英語版 |
Nigronia serricornis
''Nigronia serricornis'' has many common names including; hellgrammites or fishflies or saw-combed fishfies. The genus ''Nigronia'' has one other North American member ''N. fasciatus'' which lives in much of the same territory and is quite similar in all regards. They are holometabolous insects with an aquatic larval stage. ''N. serricornis'' is a common inhabitant of woodland streams in North America and they are often the largest insect predator found in 2nd and 3rd order streams. The larvae are a sit-and -wait ambush predators that feed on a large variety of invertebrates. Studies have shown that ''N. serricornis'' has a varying diet throughout the seasons.〔
== Distribution ==
Despite this small organism’s limited ability to disperse it has managed to spread throughout the Eastern United States. The range of ''N. serricornis'' expands northward from Florida into Ontario, and west to the US Rocky Mountains. By using genetic analyses, Heilveil and Berlocher (2006) have identified that there are six major clades of ''N. serricornis''. The ancestral clade in the north end of their range, represent the initial colonization of ''N. serricornis'' on the Eastern US. This clade was separated from the derived clade by the Appalachian Mountains.
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「Nigronia serricornis」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.
|
|