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Inconsistent inbreeding effects during lizard ontogeny

Citation

Bererhi, B and Wapstra, E and Schwartz, TS and Olsson, M, Inconsistent inbreeding effects during lizard ontogeny, Conservation Genetics, 20, (4) pp. 865-874. ISSN 1566-0621 (2019) [Refereed Article]

Copyright Statement

The Author(s) 2019

DOI: doi:10.1007/s10592-019-01180-6

Abstract

Reported effects of inbreeding vary among taxa and may depend on a number of factors, including what trait is measured, temporal variability, parental effects, or life history stage. To understand the effects of inbreeding during early life history stages, we estimated the effects of individual-level heterozygosity on hatching success and first year survival in a Swedish population of sand lizards (Lacerta agilis) over a period of almost a decade, using over 4000 eggs, 400 clutches, and over 3000 juveniles. Heterozygosity had a positive effect on hatching success, in standardized laboratory conditions, but no effect on first year survival. Also, both of these measures of viability varied across the years of the study, demonstrating the importance of temporal heterogeneity in pre and post-hatching conditions. Finally, we identified both paternal and maternal identity effects on hatching success. Thus, we show that selection on heterozygosity was not consistent across developmental life stages, emphasizing the need of considering a number of ontogenic stages, as well as potential parental and environmental effects, when studying the effects of heterozygosity on viability in natural populations.

Item Details

Item Type:Refereed Article
Keywords:heterozygosity, hatching success, first year survival, life history stages
Research Division:Biological Sciences
Research Group:Evolutionary biology
Research Field:Evolutionary ecology
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the biological sciences
UTAS Author:Wapstra, E (Associate Professor Erik Wapstra)
ID Code:143760
Year Published:2019
Deposited By:Zoology
Deposited On:2021-03-31
Last Modified:2021-05-20
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