2013
DOI: 10.1242/jeb.089953
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Geographical differences in maternal basking behaviour and offspring growth rate in a climatically widespread viviparous reptile

Abstract: In reptiles, the thermal environment during embryonic development affects offspring phenotypic traits and potentially offspring fitness. In viviparous species, mothers can potentially manipulate the embryonic thermal environment through their basking behaviour and, thus, may be able to manipulate offspring phenotype and increase offspring fitness. One way in which mothers can maximise offspring phenotype (and thus potentially affect offspring fitness) is by fine-tuning their basking behaviour to the environmen… Show more

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Cited by 30 publications
(35 citation statements)
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“…regimes Cadby et al, 2014; disappearance of squamate conceptuses, probably via oviducal extrusion, has been confirmed in a snake using imaging: Bonnet et al, 2008). Differences in pregnancy success among lizard species may reflect differences in embryonic tolerance, as well as the geckos' ability to minimise the effects of reduced basking opportunity by basking 'on toes'.…”
Section: Maternal Thermoregulatory Behaviour and Gestational Outcomesmentioning
confidence: 92%
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“…regimes Cadby et al, 2014; disappearance of squamate conceptuses, probably via oviducal extrusion, has been confirmed in a snake using imaging: Bonnet et al, 2008). Differences in pregnancy success among lizard species may reflect differences in embryonic tolerance, as well as the geckos' ability to minimise the effects of reduced basking opportunity by basking 'on toes'.…”
Section: Maternal Thermoregulatory Behaviour and Gestational Outcomesmentioning
confidence: 92%
“…Diurnal skinks also increase aspects of thermoregulatory behaviour during pregnancy when basking opportunity is limited (e.g. Uller et al, 2011;Cadby et al, 2014); however, to our knowledge, use of an 'on-toes' posture for basking during pregnancy is seen only in Woodworthia 'Otago/Southland'. Our manual observations probably underestimated the frequency of basking in this wary species; in a field study using cameras, females basked up to several hours a day (Gibson et al, 2015).…”
Section: Maternal Thermoregulatory Behaviour and Gestational Outcomesmentioning
confidence: 99%
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“…The treatment durations were similar to common protocols for studies on captive lizards (4-10 h; e.g. Radder et al, 2007;Cadby et al, 2014) and constrained by previous research in the jacky dragon showing that 5 h of basking lamp is insufficient for reproduction (Halstead and Schwanz, 2015). The source population of the colony experiences day lengths of 12.5-14 h during October and November.…”
Section: Experimental Designmentioning
confidence: 97%