翻訳と辞書 Words near each other ・ Narcisse Blais ・ Narcisse Bonan ・ Narcisse Brunette ・ Narcisse Cantin ・ Narcisse Chaillou ・ Narcisse Ekanga ・ Narcisse Fournier ・ Narcisse Girard ・ Narcisse Henri François Desportes ・ Narcisse Lecavalier ・ Narcisse Leven ・ Narcisse Parant ・ Narcisse Pelletier ・ Narcisse Poirier ・ Narcisse Pérodeau ・ Narcisse Snake Pits ・ Narcisse Théophile Patouillard ・ Narcisse Virgilio Díaz ・ Narcisse Yaméogo ・ Narcisse-Achille de Salvandy ・ Narcisse-Fortunat Belleau ・ Narcisse-Édouard Cormier ・ Narcisseae ・ Narcissism ・ Narcissism in the workplace ・ Narcissism of small differences ・ Narcissister ・ Narcissistic abuse ・ Narcissistic Cannibal ・ Narcissistic defences Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Narcisse Snake Pits ： ウィキペディア英語版 Narcisse Snake Pits The Narcisse Snake Pits are located in the Rural Municipality of Armstrong about six kilometers north of Narcisse, Manitoba, Canada. The dens are the winter home of tens of thousands of red-sided garter snakes (''Thamnophis sirtalis parietalis''). These pits are the largest concentration in the world of this particular type of snake. Their winter dens are subterranean caverns formed by the area's water-worn limestone bedrock. In the spring, they come up from their dens to the snake pits, where they engage in mating rituals. Then they disperse into the nearby marshes for the summer. == Conservation == The population of red-sided garter snakes around Narcisse was roughly 70,000 until terrible weather in 1999 killed tens of thousands of them before they could reach their winter dens. () This tragedy triggered concern about the snakes' biannual migratory path, which cuts right across Highway 17. Every year, ten thousand snakes trying to get to or from their winter dens had been crushed under the wheels of vehicles. This had not been a problem before, because the vast population compensated for the losses. After the winter of 1999, however, the population of garter snakes was dangerously low, causing Manitoba Hydro and volunteers to intervene. Foot-high snow fences were built to force snakes into 15-cm tunnels that went under Highway 17. Since some snakes still managed to squeeze under the fence and onto the road, signs were put up during the migratory season urging motorists to slow down to avoid accidentally driving over snakes. These measures worked, and now less than a thousand snakes per season are killed on the highway. 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「Narcisse Snake Pits」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.