Shell Size Variation And Aggregation Behavior Of Littoraria Flava (gastropoda: Littorinidae) On A Southeastern Brazilian Shore

dc.creatorMoutinho P.R.S.
dc.creatorAlves-Costa C.P.
dc.date2000
dc.date2015-06-30T19:47:55Z
dc.date2015-11-26T14:46:20Z
dc.date2015-06-30T19:47:55Z
dc.date2015-11-26T14:46:20Z
dc.date.accessioned2018-03-28T21:55:58Z
dc.date.available2018-03-28T21:55:58Z
dc.identifier
dc.identifierVeliger. , v. 43, n. 3, p. 277 - 281, 2000.
dc.identifier423211
dc.identifier
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0034600588&partnerID=40&md5=91af29e2d06530f8463e0bc5c551ab4c
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/106952
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/106952
dc.identifier2-s2.0-0034600588
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1252796
dc.descriptionLittoraria flava is a common snail on rocky shores and stems of mangrove trees along the southeastern coast of Brazil. However, studies on this species are absent. Our previous observation indicated a distance distribution pattern among shell size classes of this snail, depending on distance from the shore and occurrence in aggregation. We hypothesized that (1) snails with large shells would occur on tree stems far from the shore and (2) snails occurring in aggregation on rocky shores would be smaller than those occurring in isolation. We evaluated the effect of desiccation on the mortality of different size classes of snails experimentally submitted to a temperature of 40°C. We measured snail shells on 14 tree stems occurring in two mangrove strips (near and far from shore). Snails on tree stems of mangrove strips far from shore presented larger shells than snails near the shore. Snails in aggregations on rocky shores were smaller than isolated ones. The desiccation experiment showed that small snails (< 1 cm) lost water at a faster rate than larger ones (> 1.55 cm) and the mortality of small snails was above 70%. The distribution pattern of L. flava is probably related to differential shell size class tolerance to prolonged periods of emersion. Also, aggregation may be a behavioral mechanism to avoid water loss, as small snails are frequently found in aggregation and lose water at a faster rate.
dc.description43
dc.description3
dc.description277
dc.description281
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dc.languageen
dc.publisher
dc.relationVeliger
dc.rightsaberto
dc.sourceScopus
dc.titleShell Size Variation And Aggregation Behavior Of Littoraria Flava (gastropoda: Littorinidae) On A Southeastern Brazilian Shore
dc.typeArtículos de revistas


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