10.5061/DRYAD.47N3Q
Mattila, Anniina L. K.
University of Helsinki
Hanski, Ilkka
University of Helsinki
Data from: Heritability of flight and resting metabolic rates in the
Glanville fritillary butterfly
Dryad
dataset
2014
Life History Evolution
Melitaea cinxia
Evolutionary physiology
2014-05-23T14:50:22Z
2014-05-23T14:50:22Z
en
https://doi.org/10.1111/jeb.12426
60960 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Dispersal capacity is a key life history trait especially in species
inhabiting fragmented landscapes. Evolutionary models predict that, given
sufficient heritable variation, dispersal rate responds to natural
selection imposed by habitat loss and fragmentation. Here, we estimate
phenotypic variance components and heritability of flight and resting
metabolic rates in an ecological model species, the Glanville fritillary
butterfly, in which flight metabolic rate is known to correlate strongly
with dispersal rate. We modeled a two-generation pedigree with the animal
model to distinguish additive genetic variance from maternal and common
environmental effects. The results show that flight metabolic rate is
significantly heritable, with additive genetic variance accounting for
about 40% of total phenotypic variance; thus flight metabolic rate has the
potential to respond to selection on dispersal capacity. Maternal
influences on flight metabolism were negligible. Heritability of flight
metabolism was context-dependent, as in stressful thermal conditions
environmentally induced variation dominated over additive genetic effects.
There was no heritability in resting metabolic rate, which was instead
strongly influenced by maternal effects. This study contributes to a
mechanistic understanding of the evolution of dispersal-related traits, a
pressing question in view of the challenges posed to many species by
changing climate and fragmentation of natural habitats.
Mattila_Hanski_Heritability of flight and resting metabolic rate_dataThe
file includes family and rearing information as well as metabolic rate,
morphological and Pgi genotype data for individual butterflies in the
first and second generation. Descriptions of data columns are specified in
the title row of the data file.
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