Life Histories of Two Endangered Sea Skaters Halobates matsumurai Esaki and Asclepios shiranui (Esaki) (Hemiptera: Gerridae: Halobatinae)
Sea skaters Halobates matsumurai Esaki and Asclepios shiranui (Esaki) are among the few marine insects found in Japan. For the past several decades, they have become rare in most localities and have now been designated as endangered by the government. In order to understand their adaptive strategies...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Psyche: A Journal of Entomology |
| Online Access: | http://dx.doi.org/10.1155/2012/261071 |
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| author | Terumi Ikawa Yuichi Nozoe Natsuko Yamashita Namiko Nishimura Satoshi Ohnoki Kyoko Yusa Sugihiko Hoshizaki Masayuki Komaba Akihiro Kawakubo |
| author_facet | Terumi Ikawa Yuichi Nozoe Natsuko Yamashita Namiko Nishimura Satoshi Ohnoki Kyoko Yusa Sugihiko Hoshizaki Masayuki Komaba Akihiro Kawakubo |
| author_sort | Terumi Ikawa |
| collection | DOAJ |
| description | Sea skaters Halobates matsumurai Esaki and Asclepios shiranui (Esaki) are among the few marine insects found in Japan. For the past several decades, they have become rare in most localities and have now been designated as endangered by the government. In order to understand their adaptive strategies to the marine environment and to develop conservation measures, it is essential to know their life histories. We studied their lifecycles in Kujukushima Bay off the north coast of Kyushu (Japan) where they co-occurred in small coves along the jagged coast. They appeared to have more than one generation a year and to overwinter in the egg stage. Eggs of H. matsumurai were laid on natural sandstones and man-made sandstone walls along the shore, mostly above the average sea level. The eggs had very hard shells, presumably adaptive to protect them from desiccation, solar radiation, and wave action, especially during the overwintering period. |
| format | Article |
| id | doaj-art-de65f6709f684de4a628ab41ab92431c |
| institution | Kabale University |
| issn | 0033-2615 1687-7438 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Psyche: A Journal of Entomology |
| spelling | doaj-art-de65f6709f684de4a628ab41ab92431c2025-02-03T01:07:30ZengWileyPsyche: A Journal of Entomology0033-26151687-74382012-01-01201210.1155/2012/261071261071Life Histories of Two Endangered Sea Skaters Halobates matsumurai Esaki and Asclepios shiranui (Esaki) (Hemiptera: Gerridae: Halobatinae)Terumi Ikawa0Yuichi Nozoe1Natsuko Yamashita2Namiko Nishimura3Satoshi Ohnoki4Kyoko Yusa5Sugihiko Hoshizaki6Masayuki Komaba7Akihiro Kawakubo8Faculty of Humanities, The University of Morioka, 808 Sunagome, Takizawa, Iwate 020-0183, JapanKujukushima Research Group, Saikai Pearl Sea Resort, 1008 Kashimae, Sasebo, Nagasaki 858-0922, JapanFaculty of Humanities, The University of Morioka, 808 Sunagome, Takizawa, Iwate 020-0183, JapanKujukushima Research Group, Saikai Pearl Sea Resort, 1008 Kashimae, Sasebo, Nagasaki 858-0922, JapanFaculty of Humanities, The University of Morioka, 808 Sunagome, Takizawa, Iwate 020-0183, JapanKujukushima Research Group, Saikai Pearl Sea Resort, 1008 Kashimae, Sasebo, Nagasaki 858-0922, JapanGraduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo 113-8657, JapanKujukushima Research Group, Saikai Pearl Sea Resort, 1008 Kashimae, Sasebo, Nagasaki 858-0922, JapanKujukushima Research Group, Saikai Pearl Sea Resort, 1008 Kashimae, Sasebo, Nagasaki 858-0922, JapanSea skaters Halobates matsumurai Esaki and Asclepios shiranui (Esaki) are among the few marine insects found in Japan. For the past several decades, they have become rare in most localities and have now been designated as endangered by the government. In order to understand their adaptive strategies to the marine environment and to develop conservation measures, it is essential to know their life histories. We studied their lifecycles in Kujukushima Bay off the north coast of Kyushu (Japan) where they co-occurred in small coves along the jagged coast. They appeared to have more than one generation a year and to overwinter in the egg stage. Eggs of H. matsumurai were laid on natural sandstones and man-made sandstone walls along the shore, mostly above the average sea level. The eggs had very hard shells, presumably adaptive to protect them from desiccation, solar radiation, and wave action, especially during the overwintering period.http://dx.doi.org/10.1155/2012/261071 |
| spellingShingle | Terumi Ikawa Yuichi Nozoe Natsuko Yamashita Namiko Nishimura Satoshi Ohnoki Kyoko Yusa Sugihiko Hoshizaki Masayuki Komaba Akihiro Kawakubo Life Histories of Two Endangered Sea Skaters Halobates matsumurai Esaki and Asclepios shiranui (Esaki) (Hemiptera: Gerridae: Halobatinae) Psyche: A Journal of Entomology |
| title | Life Histories of Two Endangered Sea Skaters Halobates matsumurai Esaki and Asclepios shiranui (Esaki) (Hemiptera: Gerridae: Halobatinae) |
| title_full | Life Histories of Two Endangered Sea Skaters Halobates matsumurai Esaki and Asclepios shiranui (Esaki) (Hemiptera: Gerridae: Halobatinae) |
| title_fullStr | Life Histories of Two Endangered Sea Skaters Halobates matsumurai Esaki and Asclepios shiranui (Esaki) (Hemiptera: Gerridae: Halobatinae) |
| title_full_unstemmed | Life Histories of Two Endangered Sea Skaters Halobates matsumurai Esaki and Asclepios shiranui (Esaki) (Hemiptera: Gerridae: Halobatinae) |
| title_short | Life Histories of Two Endangered Sea Skaters Halobates matsumurai Esaki and Asclepios shiranui (Esaki) (Hemiptera: Gerridae: Halobatinae) |
| title_sort | life histories of two endangered sea skaters halobates matsumurai esaki and asclepios shiranui esaki hemiptera gerridae halobatinae |
| url | http://dx.doi.org/10.1155/2012/261071 |
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