Growing up in a new world: trait divergence between rural, urban, and invasive populations of an amphibian urban invader

Mühlenhaupt M, Baxter-Gilbert J, Makhubo BG, Riley JL, Measey J (2021)
NeoBiota 69: 103-132.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Mühlenhaupt, MaxUniBi ; Baxter-Gilbert, James; Makhubo, Buyisile G.; Riley, Julia L.; Measey, John
Abstract / Bemerkung
Cities are focal points of introduction for invasive species. Urban evolution might facilitate the success of invasive species in recipient urban habitats. Here we test this hypothesis by rearing tadpoles of a successful amphibian urban coloniser and invader in a common garden environment. We compared growth rate, morphological traits, swimming performance, and developmental rate of guttural toad tadpoles (Sclerophrys gutturalis) from native rural, native urban, and non-native urban habitats. By measuring these traits across ontogeny, we were also able to compare divergence across different origins as the tadpoles develop. The tadpoles of non-native urban origin showed significantly slower developmental rate (e.g., the proportion of tadpoles reaching Gosner stage 31 or higher was lower at age 40 days) than tadpoles of native urban origin. Yet, tadpoles did not differ in growth rate or any morphological or performance trait examined, and none of these traits showed divergent ontogenetic changes between tadpoles of different origin. These findings suggest that prior adaptation to urban habitats in larval traits likely does not play an important role in facilitating the invasion success of guttural toads into other urban habitats. Instead, we suggest that evolutionary changes in larval traits after colonization (e.g., developmental rate), together with decoupling of other traits and phenotypic plasticity might explain how this species succeeded in colonising extra-limital urban habitats.
Erscheinungsjahr
2021
Zeitschriftentitel
NeoBiota
Band
69
Seite(n)
103-132
ISSN
1619-0033
eISSN
1314-2488
Page URI
https://pub.uni-bielefeld.de/record/2962572

Zitieren

Mühlenhaupt M, Baxter-Gilbert J, Makhubo BG, Riley JL, Measey J. Growing up in a new world: trait divergence between rural, urban, and invasive populations of an amphibian urban invader. NeoBiota. 2021;69:103-132.
Mühlenhaupt, M., Baxter-Gilbert, J., Makhubo, B. G., Riley, J. L., & Measey, J. (2021). Growing up in a new world: trait divergence between rural, urban, and invasive populations of an amphibian urban invader. NeoBiota, 69, 103-132. https://doi.org/10.3897/neobiota.69.67995
Mühlenhaupt, M., Baxter-Gilbert, J., Makhubo, B. G., Riley, J. L., and Measey, J. (2021). Growing up in a new world: trait divergence between rural, urban, and invasive populations of an amphibian urban invader. NeoBiota 69, 103-132.
Mühlenhaupt, M., et al., 2021. Growing up in a new world: trait divergence between rural, urban, and invasive populations of an amphibian urban invader. NeoBiota, 69, p 103-132.
M. Mühlenhaupt, et al., “Growing up in a new world: trait divergence between rural, urban, and invasive populations of an amphibian urban invader”, NeoBiota, vol. 69, 2021, pp. 103-132.
Mühlenhaupt, M., Baxter-Gilbert, J., Makhubo, B.G., Riley, J.L., Measey, J.: Growing up in a new world: trait divergence between rural, urban, and invasive populations of an amphibian urban invader. NeoBiota. 69, 103-132 (2021).
Mühlenhaupt, Max, Baxter-Gilbert, James, Makhubo, Buyisile G., Riley, Julia L., and Measey, John. “Growing up in a new world: trait divergence between rural, urban, and invasive populations of an amphibian urban invader”. NeoBiota 69 (2021): 103-132.

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