We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
A Study of the Distributions of Two Endangered Sea Skaters Halobates matsumurai Esaki and Asclepios shiranui (Esaki) (Hemiptera: Gerridae: Halobatinae) with Special Reference to Their Strategies to Cope with Tidal Currents.
- Authors
Ikawa, Terumi; Nozoe, Yuichi; Yamashita, Natsuko; Nishimura, Namiko; Ohnoki, Satoshi; Yusa, Kyoko; Hoshizaki, Sugihiko; Komaba, Masayuki; Kawakubo, Akihiro
- Abstract
There exist surprisingly few marine insects, most of which are confined to the intertidal zone.<italic> Halobates</italic> is the only genus to have some oceanic species along with some coastal species. Among the coastal sea skaters, that is, genus<italic> Halobates</italic> and its close relative, genus<italic> Asclepios,</italic> there are variations in their affinity for the shore. We have studied the distributions of two endangered Japanese sea skaters,<italic> Halobates matsumurai </italic>and<italic> Asclepios shiranui</italic> in Kujukushima, where they cooccur in coves. To compare their survival strategies at sea, we especially noted differences in their distributions along the shore during high and low tides. The results show that<italic> A. shiranui </italic>tended to remain along the shore during low tide. This species appeared to cling to the shore against the ebb current and to stay in the protected coves. By contrast,<italic> H. matsumurai</italic> tended to leave the shore during low tide. Notably, some adults were found skating outside the coves. The strategy of<italic> H. matsumurai</italic> appeared to be leaving with the ebb current even beyond the coves, thereby using more resources and enlarging its habitat. Some such coastal<italic> Halobates</italic> might have acquired the ability to live on the open ocean clearly independent of the shoreline.
- Subjects
GERRIDAE; MARINE species diversity; SURVIVAL analysis (Biometry); TIDAL currents; MARINE insects; SPECIES distribution; BEHAVIOR
- Publication
Psyche: A Journal of Entomology, 2018, p1
- ISSN
0033-2615
- Publication type
Article
- DOI
10.1155/2018/3464829