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Extra-pair paternity as a strategy to reduce the costs of heterospecific reproduction? Insights from the crow hybrid zone.
J Evol Biol. 2020 May; 33(5):727-733.JE

Abstract

Within hybrid zones of socially monogamous species, the number of mating opportunities with a conspecific can be limited. As a consequence, individuals may mate with a heterospecific (social) partner despite possible fitness costs to their hybrid offspring. Extra-pair copulations with a conspecific may thus arise as a possible post hoc strategy to reduce the costs of hybridization. We here assessed the rate of extra-pair paternity in the hybrid zone between all-black carrion crows (Corvus (corone) corone) and grey hooded crows (C. (c.) cornix) and tested whether extra-pair paternity (EPP) was more likely in broods where parents differed in plumage colour. The proportion of broods with at least one extra-pair offspring and the proportion of extra-pair offspring were low overall (6.98% and 2.90%, respectively) with no evidence of hybrid broods having higher EPP rates than purebred nests.

Authors+Show Affiliations

Division of Evolutionary Biology, Ludwig Maximilian University of Munich, Planegg-Martinsried, Germany.Science for Life Laboratories and Department of Evolutionary Biology, Uppsala University, Uppsala, Sweden. Center for Tropical Research, Institute of the Environment and Sustainability, University of California, Los Angeles, CA, USA.Division of Evolutionary Biology, Ludwig Maximilian University of Munich, Planegg-Martinsried, Germany. Science for Life Laboratories and Department of Evolutionary Biology, Uppsala University, Uppsala, Sweden.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32069366

Citation

Knief, Ulrich, et al. "Extra-pair Paternity as a Strategy to Reduce the Costs of Heterospecific Reproduction? Insights From the Crow Hybrid Zone." Journal of Evolutionary Biology, vol. 33, no. 5, 2020, pp. 727-733.
Knief U, Bossu CM, Wolf JBW. Extra-pair paternity as a strategy to reduce the costs of heterospecific reproduction? Insights from the crow hybrid zone. J Evol Biol. 2020;33(5):727-733.
Knief, U., Bossu, C. M., & Wolf, J. B. W. (2020). Extra-pair paternity as a strategy to reduce the costs of heterospecific reproduction? Insights from the crow hybrid zone. Journal of Evolutionary Biology, 33(5), 727-733. https://doi.org/10.1111/jeb.13607
Knief U, Bossu CM, Wolf JBW. Extra-pair Paternity as a Strategy to Reduce the Costs of Heterospecific Reproduction? Insights From the Crow Hybrid Zone. J Evol Biol. 2020;33(5):727-733. PubMed PMID: 32069366.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Extra-pair paternity as a strategy to reduce the costs of heterospecific reproduction? Insights from the crow hybrid zone. AU - Knief,Ulrich, AU - Bossu,Christen M, AU - Wolf,Jochen B W, Y1 - 2020/03/16/ PY - 2019/12/09/received PY - 2020/01/22/revised PY - 2020/02/17/accepted PY - 2020/2/19/pubmed PY - 2020/2/19/medline PY - 2020/2/19/entrez KW - extra-pair paternity KW - hybridization KW - reinforcement KW - reproductive character displacement SP - 727 EP - 733 JF - Journal of evolutionary biology JO - J. Evol. Biol. VL - 33 IS - 5 N2 - Within hybrid zones of socially monogamous species, the number of mating opportunities with a conspecific can be limited. As a consequence, individuals may mate with a heterospecific (social) partner despite possible fitness costs to their hybrid offspring. Extra-pair copulations with a conspecific may thus arise as a possible post hoc strategy to reduce the costs of hybridization. We here assessed the rate of extra-pair paternity in the hybrid zone between all-black carrion crows (Corvus (corone) corone) and grey hooded crows (C. (c.) cornix) and tested whether extra-pair paternity (EPP) was more likely in broods where parents differed in plumage colour. The proportion of broods with at least one extra-pair offspring and the proportion of extra-pair offspring were low overall (6.98% and 2.90%, respectively) with no evidence of hybrid broods having higher EPP rates than purebred nests. SN - 1420-9101 UR - https://www.unboundmedicine.com/medline/citation/32069366/Extra-pair_paternity_as_a_strategy_to_reduce_the_costs_of_heterospecific_reproduction_Insights_from_the_crow_hybrid_zone L2 - https://doi.org/10.1111/jeb.13607 DB - PRIME DP - Unbound Medicine ER -
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