Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jembe.2011.05.014
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dc.titleThermal niche separation in two sympatric tropical intertidal Laternula (Bivalvia: Anomalodesmata)
dc.contributor.authorLai, C.H.
dc.contributor.authorMorley, S.A.
dc.contributor.authorTan, K.S.
dc.contributor.authorPeck, L.S.
dc.date.accessioned2014-11-26T10:27:01Z
dc.date.available2014-11-26T10:27:01Z
dc.date.issued2011-08-31
dc.identifier.citationLai, C.H., Morley, S.A., Tan, K.S., Peck, L.S. (2011-08-31). Thermal niche separation in two sympatric tropical intertidal Laternula (Bivalvia: Anomalodesmata). Journal of Experimental Marine Biology and Ecology 405 (1-2) : 68-72. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jembe.2011.05.014
dc.identifier.issn00220981
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/110909
dc.description.abstractFactors determining thermal niche separation of two sympatric infaunal bivalves (Laternula truncata and L. boschasina) occurring in a Singapore mangrove were examined by comparing experienced microhabitat temperature with the thermal dependency of mortality and burrowing (both success and speed). The shallow burrowing L. boschasina, which experiences a wider range of environmental temperatures than the deeper burrowing L. truncata, can burrow over a wider temperature range (18.8-37.9°C) than L. truncata (20.7-36.3°C), a thermal window which corresponds closely to the maximum and minimum sediment temperatures predicted from the extreme air temperatures recorded in Singapore (22.1 to 35.7°C for L. truncata and 18.8 to 38.5°C for L. boschasina). The upper lethal limit of L. boschasina (36.4 to 38.4°C) was also higher than that of L. truncata (33.5-35.5°C), but the lower lethal limit of L. truncata (5.7-5.7°C) was considerably lower than L. boschasina (18.1-20.4°C) and microhabitat temperature. This apparent niche separation of lower limits was also mirrored in the speed of burrowing: L. boschasina maintained a constant burrowing speed across its temperature range, whilst L. truncata burrowed more slowly at low temperatures. The much greater predation pressure on the shallow burrowing L. boschasina may provide the selective pressure for the maintenance of activity at the expense of reduced survival at low temperatures. © 2011 Elsevier B.V.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.jembe.2011.05.014
dc.sourceScopus
dc.subjectBurrowing activities
dc.subjectLaternula
dc.subjectThermal niche
dc.subjectThermal tolerance
dc.subjectTropical infaunal bivalves
dc.typeArticle
dc.contributor.departmentTROPICAL MARINE SCIENCE INSTITUTE
dc.description.doi10.1016/j.jembe.2011.05.014
dc.description.sourcetitleJournal of Experimental Marine Biology and Ecology
dc.description.volume405
dc.description.issue1-2
dc.description.page68-72
dc.description.codenJEMBA
dc.identifier.isiut000293047800009
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