{"title":"兰萨罗特岛 Anax ephippiger 的大量涌入和异常栖息行为（蜻蜓目：蜓科）","authors":"Hansruedi Wildermuth, Katharina Estermann","doi":"10.60024/nodo.v10i3.a1","DOIUrl":null,"url":null,"abstract":". A mass influx of migrating Anax ephippiger was observed on Lanzarote, an island of the Canaries lacking surface waters. Individuals of both sexes roosted close together on palm leaves, all of them with their abdomen conspicuously curved upward. We suggest that this posture may be the result of a trade-off between roosting together as close as possible and obtaining enough spatial freedom for rapid simultaneous take-offs of the individuals when disturbed.","PeriodicalId":508078,"journal":{"name":"Notulae odonatologicae","volume":"29 27","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Mass influx and unusual roosting behaviour of Anax ephippiger on the island of Lanzarote (Odonata: Aeshnidae)\",\"authors\":\"Hansruedi Wildermuth, Katharina Estermann\",\"doi\":\"10.60024/nodo.v10i3.a1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\". A mass influx of migrating Anax ephippiger was observed on Lanzarote, an island of the Canaries lacking surface waters. Individuals of both sexes roosted close together on palm leaves, all of them with their abdomen conspicuously curved upward. We suggest that this posture may be the result of a trade-off between roosting together as close as possible and obtaining enough spatial freedom for rapid simultaneous take-offs of the individuals when disturbed.\",\"PeriodicalId\":508078,\"journal\":{\"name\":\"Notulae odonatologicae\",\"volume\":\"29 27\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-06-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Notulae odonatologicae\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.60024/nodo.v10i3.a1\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Notulae odonatologicae","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.60024/nodo.v10i3.a1","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Mass influx and unusual roosting behaviour of Anax ephippiger on the island of Lanzarote (Odonata: Aeshnidae)
. A mass influx of migrating Anax ephippiger was observed on Lanzarote, an island of the Canaries lacking surface waters. Individuals of both sexes roosted close together on palm leaves, all of them with their abdomen conspicuously curved upward. We suggest that this posture may be the result of a trade-off between roosting together as close as possible and obtaining enough spatial freedom for rapid simultaneous take-offs of the individuals when disturbed.
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