10.5061/DRYAD.CQ98678
Hülber, Karl
University of Vienna
Sonnleitner, Michaela
University of Vienna
Haider, Julian
University of Vienna
Schwentenwein, Martin
University of Vienna
Winkler, Manuela
University of Vienna
Schneeweiss, Gerald M.
University of Vienna
Schönswetter, Peter
University of Innsbruck
Data from: Reciprocal transplantations reveal strong niche differentiation
among ploidy-differentiated species of the Senecio carniolicus aggregate
(Asteraceae) in the easternmost Alps
Dryad
dataset
2019
vital rates
Senecio noricus
Senecio disjunctus
Senecio carniolicus s. str.
Senecio carniolicus agg.
2019-08-10T00:00:00Z
2019-08-10T00:00:00Z
en
https://doi.org/10.1007/s00035-018-0209-2
113254 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Phenotypic changes conferred by polyploidisation likely alter the
ecological niche of polyploids, coming along with differences in
performance compared to their diploid ancestors. However, it is largely
unknown, whether these performance differences remain constant during the
life history of plants. Diploid S. noricus, tetraploid S. disjunctus and
hexaploid S. carniolicus s. str. of the autopolyploid species-complex of
Senecio carniolicus (Asteraceae) from the easternmost Alps were
reciprocally transplanted to address the following questions: Are there
differences in species performances indicating niche differentiation? If
so, does the resident or the higher-ploid species – which is
taller-growing and possibly more tolerant against challenging abiotic and
biotic conditions – show higher performance? Are performance differences
consistent between early and late life history stages? Our data suggest
that the hierarchy of species performance depends on the life-history
stage. For early life history stages (seeds, seedlings) we mainly observed
superior performance of S. carniolicus s. str. even on resident sites of
the two other species. In contrast, vital rates of adults were
predominantly highest for the resident species. The resident site of S.
carniolicus s. str., which was expected to be environmentally least
stressful (i.e. longest growing period, least affected by frost) turned
out to be the most selective one, with high mortality and (nearly) no
reproduction of the foreign species most likely due to top soil
desiccation. Our study illustrates that there may be no clear-cut answer
to the question if the resident or the higher-ploid species shows superior
performance in polyploid complexes, but rather suggests that relative
performance may depend on life-history stage.
Field data for adultsHuelber_etal_datadepository_adults.csvField data for
seedlingsHuelber_etal_datadepository_seedlings.csv