{"title":"Diapausing Cavity-Nesting Bees (<i>Osmia, Megachile</i>) Resist Winter Desiccation Stress.","authors":"James H Cane","doi":"10.3390/insects16090946","DOIUrl":null,"url":null,"abstract":"<p><p>All solitary and primitively eusocial bees of the temperate zones survive winter in a dormant diapausing state. Weight loss of <i>Osmia</i> and <i>Megachile</i> bees has been solely attributed to metabolism of stored triglycerides, as evidenced by loss of fat body. I hypothesized that uptake or loss of water vapor may represent another contributor to wintering weight change. Using a range of atmospheric humidities (0-88%), it is shown that wintering cocooned <i>O. californica</i> (adults) and <i>M. rotundata</i> (prepupae) gained weight in humid atmospheres and lost weight in drier air, the inflection point being between 35 and 47% humidity. Most of this weight change occurred in early winter. No humidity treatment enhanced mortality. Winter storage humidity is an available management variable for these bees when kept for commercial pollination.</p>","PeriodicalId":13642,"journal":{"name":"Insects","volume":"16 9","pages":""},"PeriodicalIF":2.9000,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12470749/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Insects","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.3390/insects16090946","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENTOMOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
All solitary and primitively eusocial bees of the temperate zones survive winter in a dormant diapausing state. Weight loss of Osmia and Megachile bees has been solely attributed to metabolism of stored triglycerides, as evidenced by loss of fat body. I hypothesized that uptake or loss of water vapor may represent another contributor to wintering weight change. Using a range of atmospheric humidities (0-88%), it is shown that wintering cocooned O. californica (adults) and M. rotundata (prepupae) gained weight in humid atmospheres and lost weight in drier air, the inflection point being between 35 and 47% humidity. Most of this weight change occurred in early winter. No humidity treatment enhanced mortality. Winter storage humidity is an available management variable for these bees when kept for commercial pollination.
InsectsAgricultural and Biological Sciences-Insect Science
CiteScore
5.10
自引率
10.00%
发文量
1013
审稿时长
21.77 days
期刊介绍：
Insects (ISSN 2075-4450) is an international, peer-reviewed open access journal of entomology published by MDPI online quarterly. It publishes reviews, research papers and communications related to the biology, physiology and the behavior of insects and arthropods. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Electronic files regarding the full details of the experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material.
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