monarch butterfly 了解下 The annual migration of North America’s monarch butterfly is a unique and amazing phenomenon. The monarch is the only butterfly known to make a two-way migration as birds do. Unlike other butterflies that can overwinter as larvae, pupae, or even as adults in some species, monarchs cannot survive the cold winters of northern climates. Using environmental cues, the monarchs know when it is time to travel south for the winter. Monarchs use a combination of air currents and thermals to travel long distances. Some fly as far as 3,000 miles to reach their winter home!
日本富山县日前标放一只青斑蝶，结果46天后在台湾澎湖县被发现，长途飞行里程约2277公里，不仅成富山县内青斑蝶跨国移动首例，也创下从富山县飞行的最长距离。
日本「北日本新闻」报导，位于日本富山市的富山县自然博物馆14日表示，翅膀上被作记号后从富山县标放的一只青斑蝶，在约2277公里外的台湾澎湖县被发现。富山青斑蝶调查团队事务局的富山县自然博物馆负责人说，这只青斑蝶可能是乘着上升气流移动，「飞这么远真的很罕见」。
青斑蝶以会随着气温变化在日本与东南亚等地进行长途迁徙为人周知。由于青斑蝶详细的飞行路径等仍不为人知，所以日本全国研究人员都在进行青斑蝶移动调查。
富山县自然博物馆表示，这次发现的青斑蝶是调查团队成员长崎喜一9月25日所捕获并进行标放，11月10日被台湾澎湖县居民捕获，并在脸书上发文，可知这只青斑蝶在46天内进行约2277公里长途飞行。
富山县自然博物馆负责人说，这只青斑蝶飞到翅膀已破碎，令人感到非常可怜。
日本和歌山县标放青斑蝶过去曾在香港被发现，创下至今最长的约2500公里飞行纪录；富山县内的青斑蝶在此之前的最长纪录，是飞到冲绳县与那国岛，长度约2000公里。
来源：世界新闻网
The annual migration of North America’s monarch butterfly is a unique and amazing phenomenon. The monarch is the only butterfly known to make a two-way migration as birds do. Unlike other butterflies that can overwinter as larvae, pupae, or even as adults in some species, monarchs cannot survive the cold winters of northern climates. Using environmental cues, the monarchs know when it is time to travel south for the winter. Monarchs use a combination of air currents and thermals to travel long distances. Some fly as far as 3,000 miles to reach their winter home!