Lifetime inbreeding depression in a leaf beetle

Müller T, Lamprecht T, Schrieber K (2018)
Ecology and Evolution 8(14): 6889-6898.

Download
OA 601.10 KB
Zeitschriftenaufsatz | Veröffentlicht | Englisch
Volltext vorhanden für diesen Nachweis
Abstract / Bemerkung
Ongoing habitat loss and fragmentation result in rapid population size reductions, which can increase the levels of inbreeding. Consequently, many species are threatened by inbreeding depression, a loss of individual fitness following the mating of close relatives. Here, we investigated inbreeding effects on fitness‐related traits throughout the lifetime of the mustard leaf beetle (Phaedon cochleariae) and mechanisms for the avoidance of inbreeding. Previously, we found that these beetles have family‐specific cuticular hydrocarbon profiles, which are likely not used as recognition cue for precopulatory inbreeding avoidance. Thus, we examined whether adult beetles show postcopulatory inbreeding avoidance instead. For this purpose, we determined the larval hatching rate of eggs laid by females mated sequentially with two nonsiblings, two siblings, a nonsibling, and a sibling or vice versa. The beetles suffered from inbreeding depression throughout their entire ontogeny, as evinced by a prolonged larval development, a decreased larval and adult survival and a decreased reproductive output of inbred compared to outbred individuals. The highest larval hatching rates were detected when females were mated with two nonsiblings or first with a sibling and second with a nonsibling. Significantly lower hatching rates were measured in the treatments with a sibling as second male. Thus, the results do not support the existence of postcopulatory inbreeding avoidance in P. cochleariae, but revealed evidence for second male sperm precedence. Consequently, an alternative strategy to avoid inbreeding costs might exist in this beetle, such as a polyandrous mating system, potentially coupled with a specific dispersal behavior.
Erscheinungsjahr
Zeitschriftentitel
Ecology and Evolution
Band
8
Zeitschriftennummer
14
Seite
6889-6898
eISSN
Finanzierungs-Informationen
Article Processing Charge funded by the Deutsche Forschungsgemeinschaft and the Open Access Publication Fund of Bielefeld University.
PUB-ID

Zitieren

Müller T, Lamprecht T, Schrieber K. Lifetime inbreeding depression in a leaf beetle. Ecology and Evolution. 2018;8(14):6889-6898.
Müller, T., Lamprecht, T., & Schrieber, K. (2018). Lifetime inbreeding depression in a leaf beetle. Ecology and Evolution, 8(14), 6889-6898. doi:10.1002/ece3.4205
Müller, T., Lamprecht, T., and Schrieber, K. (2018). Lifetime inbreeding depression in a leaf beetle. Ecology and Evolution 8, 6889-6898.
Müller, T., Lamprecht, T., & Schrieber, K., 2018. Lifetime inbreeding depression in a leaf beetle. Ecology and Evolution, 8(14), p 6889-6898.
T. Müller, T. Lamprecht, and K. Schrieber, “Lifetime inbreeding depression in a leaf beetle”, Ecology and Evolution, vol. 8, 2018, pp. 6889-6898.
Müller, T., Lamprecht, T., Schrieber, K.: Lifetime inbreeding depression in a leaf beetle. Ecology and Evolution. 8, 6889-6898 (2018).
Müller, Thorben, Lamprecht, Tabea, and Schrieber, Karin. “Lifetime inbreeding depression in a leaf beetle”. Ecology and Evolution 8.14 (2018): 6889-6898.
Alle Dateien verfügbar unter der/den folgenden Lizenz(en):
Copyright Statement:
This Item is protected by copyright and/or related rights. [...]
Volltext(e)
Access Level
OA Open Access
Zuletzt Hochgeladen
2018-07-19T08:21:26Z

Zusatzmaterial
Access Level
OA Open Access
Zuletzt Hochgeladen
2018-10-18T09:39:05Z

Export

Markieren/ Markierung löschen
Markierte Publikationen

Open Data PUB

Web of Science

Dieser Datensatz im Web of Science®

Quellen

PMID: 30073053
PubMed | Europe PMC

Suchen in

Google Scholar