The effect of prey availability on offspring survival depends on maternal food resources |
| |
| Authors: | Daniel A. Warner Andrew M. Buckelew Phillip R. Pearson Agam Dhawan |
| |
| Affiliation: | Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA |
| |
| Abstract: | Maternal nutrition can strongly influence embryo development and offspring fitness. The environmental matching hypothesis posits that developmental conditions affect offspring in ways that enable them to appropriately deal with similar post‐developmental conditions, although mismatches between developmental and post‐developmental environments will reduce fitness. To test this hypothesis, reproductive lizards (Anolis sagrei) were reared in environments with high versus low prey availability. The resultant offspring were then reared reciprocally under the same two prey conditions that their mothers experienced. High levels of prey available to mothers increased egg production, although the survival of eggs was low compared to those produced by mothers in the low‐prey treatment. Low prey availability to offspring reduced growth, regardless of the amount of prey available to their mothers. Low prey availability also compromised offspring survival, although this negative effect was only present when mothers experienced high‐prey conditions, whereas matching of low‐prey conditions in maternal and offspring stages resulted in high survival. However, because the mismatch of low maternal and high offspring prey availability resulted in similar offspring survival to the matched treatments, our results do not fully support the environmental matching hypothesis. Nevertheless, the present study highlights the interactive role of maternal and post‐hatching environments in generating variation in offspring fitness. © 2015 The Linnean Society of London, Biological Journal of the Linnean Society, 2015, 115 , 437–447. |
| |
| Keywords: | Anolis sagrei anticipatory parental effects developmental plasticity environmental matching hypothesis lizard nutrition |
|
|
