Laboratory Survivorship of Aerially Exposed Pond Snails (Physella integra) from Illinois Tucker, John Janzen, Fredric Janzen, Fredric Paukstis, Gary
dc.contributor.department Zoology and Genetics 2018-02-17T19:34:58.000 2020-07-07T05:17:00Z 2020-07-07T05:17:00Z Mon Jan 01 00:00:00 UTC 1996 1996
dc.description.abstract <p>Many aquatic snails occupy ephemeral habitats that are occasionally subjected to severe environmental conditions. To investigate the physiological capacity of these animals to resist extreme environmental changes, we aerially exposed aquatic pond snails (Physella integra) to temperatures of 5°C and 20°C for 6, 8, 12, 24, 36, 48, and 60 hours. Survivorship varied with temperature and exposure times. At 20°C, survivorship was 0% for snails aerially exposed for 24 hours or longer. At 5°C, 0% survivorship was attained at 60 hours exposure. Sensitivity to aerial exposure was related to shell size of individuals, with larger specimens (shell length greater than 7 mm) significantly more likely to survive exposure than smaller specimens at temperatures and intervals with incomplete mortality. These results suggest that epiphragm development and size-specific survivorship predispose these animals to rapid population recovery following severe, short-term environmental fluctuations.</p>
dc.description.comments <p>This article is from <em>Transactions of the Illinois State Academy of Science </em>89 (1996): 225. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/
dc.identifier.articleid 1005
dc.identifier.contextkey 8886404
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath zool_pubs/5
dc.language.iso en
dc.source.bitstream archive/|||Sat Jan 15 00:34:59 UTC 2022
dc.source.bitstream archive/|||Sat Jan 15 00:35:01 UTC 2022
dc.subject.disciplines Ecology and Evolutionary Biology
dc.subject.disciplines Population Biology
dc.subject.disciplines Terrestrial and Aquatic Ecology
dc.subject.disciplines Zoology
dc.title Laboratory Survivorship of Aerially Exposed Pond Snails (Physella integra) from Illinois
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 266cafbc-b90b-45b5-9c6d-d5914fff458b
relation.isOrgUnitOfPublication 4a2929da-5374-4338-b62f-f5fd9e156ef9
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