{"title":"Eurasian Eagle Owls Bubo bubo Opportunistically Prey on Stag Beetles Lucanus cervus","authors":"Matthias Overmann, T. Töpfer","doi":"10.2326/osj.20.235","DOIUrl":null,"url":null,"abstract":"Abstract We report an exceptional case of Eurasian Eagle Owls Bubo bubo feeding on Stag Beetles Lucanus cervus in Germany, with the beetles making up 56.9% of all prey individuals. A review of literature and a comparison of data reveal that both the number and the biomass of the consumed beetles are typically too low to be of any nutritional importance with respect to the Eurasian Eagle Owl's broad food spectrum. Therefore, we conclude that Eurasian Eagle Owls merely opportunistically fed on this only seasonally available food source and that juvenile owls might prey on these beetles during their hunting exercises.","PeriodicalId":49009,"journal":{"name":"Ornithological Science","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2021-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ornithological Science","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.2326/osj.20.235","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ORNITHOLOGY","Score":null,"Total":0}
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Abstract
Abstract We report an exceptional case of Eurasian Eagle Owls Bubo bubo feeding on Stag Beetles Lucanus cervus in Germany, with the beetles making up 56.9% of all prey individuals. A review of literature and a comparison of data reveal that both the number and the biomass of the consumed beetles are typically too low to be of any nutritional importance with respect to the Eurasian Eagle Owl's broad food spectrum. Therefore, we conclude that Eurasian Eagle Owls merely opportunistically fed on this only seasonally available food source and that juvenile owls might prey on these beetles during their hunting exercises.
期刊介绍：
Ornithological Science publishes reviews, original articles, short communications and comments covering all aspects of ornithology. Manuscripts are judged on the basis of their contribution of original data and ideas or interpretation. All articles are peer-reviewed by at least two researchers expert in the field of the submitted paper. Manuscript are edited where necessary for clarify and economy. Ornithological Science aims to publish as rapidly as is consistent with the requirements of peer-review and normal publishing constraints.
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