Ocean is generally a major barrier of migration for most flightless land animals; however, terrestrial flightless insects often demonstrate wide range distribution across oceans. To elucidate the mechanism of flightless insects to expand their distribution over the sea, we measured the survivorships of several coastal beetles on seawater (i.e. seawater tolerance). In this paper, we discuss the "floating dispersal" of insects based on the seawater tolerance of insects as a novel measurement of dispersal ability across ocean.
展开▼
