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Reproductive placticity, ovarian dynamics and maternal effects in response to temperature and flight in Pararge aegeria
Centre for Ecology and Hydrology, Oxon, UK.
Behavioural ecology and conservation group, Université catholique de Louvain, Belgium.
Stockholm University, Faculty of Science, Department of Zoology, Animal Ecology.ORCID iD: 0000-0001-7818-7045
2010 (English)In: Journal of insect physiology, ISSN 0022-1910, E-ISSN 1879-1611, Vol. 56, no 9, 1275-1283 p.Article in journal (Refereed) Published
Abstract [en]

In nature, ovipositing females may be subjected to multiple extrinsic and intrinsic environmental factors simultaneously. To adequately assess a species response to environmental conditions during oviposition it may therefore be necessary to consider the interaction between multiple intrinsic and extrinsic factors simultaneously. Using the butterfly, Pararge aegeria, this study examined the combined effects of extrinsic (temperature and flight) and intrinsic (body mass and age) factors on ovarian dynamics, egg provisioning and reproductive output, and explored how these effects subsequently influenced offspring fitness when egg-stage development occurred in a low humidity environment. Both temperature- and flight- mediated plasticity in female reproductive output was observed, and there were strong temperature by flight interaction effects for the traits oocyte size and egg mass. As females aged, mean daily fecundity differed across temperature treatments, but not across flight treatments. Overall, temperature had more pronounced effects on ovarian dynamics than flight. Flight mainly influenced egg mass via changes in relative water content. A mismatch between the physiological response of females to high temperature and the requirements of their offspring had a negative impact on offspring fitness via effects on egg hatching success.

Place, publisher, year, edition, pages
Elsevier , 2010. Vol. 56, no 9, 1275-1283 p.
Keyword [en]
Egg size; Embryogenesis; Insect; Lepidoptera; Longevity; Trade-off
National Category
Natural Sciences
URN: urn:nbn:se:su:diva-42420DOI: 10.1016/j.jinsphys.2010.04.009ISI: 000281087500035OAI: diva2:346054
Available from: 2010-08-30 Created: 2010-08-30 Last updated: 2014-10-13Bibliographically approved

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Karlsson, bengt
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