Extra-pair paternity in the monogamous alpine marmot (Marmota marmota): the roles of social setting and female mate choice

Cohas, Aurélie; Yoccoz, Nigel G.; Silva, A. da; Goossens, Benoît; Allainé, Dominique

doi:10.1007/s00265-005-0086-8

Cited by 75 publications

(101 citation statements)

References 70 publications

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“…For example, males that engage in EPCs stand to benefit by fertilizing all or part of an extra-pair female's brood. Likewise, a female that engages in EPCs may receive a number of fitness advantages, such as genetic benefits (Foerster et al 2003, Bouwman et al 2006, Cohas et al 2006 or a reduction in the costs of harassment by extra-pair males (Lee & Hays 2004). However, an individual of either gender that engages in EPCs may pay a substantial cost, such as cuckoldry due to relaxed mate-guarding of its own social partner (Kokko & Morrell 2005) and the transmission of diseases (Poiani & Wilks 2000).…”

Section: Introductionmentioning

confidence: 99%

Evidence for high rates of in-pair paternity in the socially monogamous snapping shrimp Alpheus angulosus

Mathews¹

2007

Aquat. Biol.

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Section: Introductionmentioning

confidence: 99%

Evidence for high rates of in-pair paternity in the socially monogamous snapping shrimp Alpheus angulosus

Mathews¹

2007

Aquat. Biol.

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“…In turn, it results in more families with mature male subordinates 2 years later. The presence of numerous male subordinates limits the capacity of the dominant male to control its female and its competitors (both inside and outside of the group), thus favouring female extra-pair mating opportunities [26]. EPP occurrence is higher among groupliving than pair-living species [19,49] and positively correlated with group size and breeding density within species [50][51][52].…”

Section: Discussionmentioning

confidence: 99%

“…It directly increased with early springs and indirectly with snowier winters that resulted in a higher proportion of families with sexually mature male subordinates, a social context favouring EPP [26]. Climatic conditions are thus a key factor to explain the annual proportion of EPLs in Alpine marmots.…”

Section: Discussionmentioning

confidence: 99%

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Faithful or not: direct and indirect effects of climate on extra-pair paternities in a population of Alpine marmots

et al. 2016

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Despite being identified an area that is poorly understood regarding the effects of climate change, behavioural responses to climatic variability are seldom explored. Climatic variability is likely to cause large inter-annual variation in the frequency of extra-pair litters produced, a widespread alternative mating tactic to help prevent, correct or minimize the negative consequences of sub-optimal mate choice. In this study, we investigated how climatic variability affects the inter-annual variation in the proportion of extra-pair litters in a wild population of Alpine marmots. During 22 years of monitoring, the annual proportion of extra-pair litters directly increased with the onset of earlier springs and indirectly with increased snow in winters. Snowier winters resulted in a higher proportion of families with sexually mature male subordinates and thus, created a social context within which extra-pair paternity was favoured. Earlier spring snowmelt could create this pattern by relaxing energetic, movement and time constraints. Further, deeper snow in winter could also contribute by increasing litter size and juvenile survival. Optimal mate choice is particularly relevant to generate adaptive genetic diversity. Understanding the influence of environmental conditions and the capacity of the individuals to cope with them is crucial within the context of rapid climate change.

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“…Their social status was determined according to scrotal development for males and teat development for females, and hair samples and skin biopsies were collected for molecular analysis. The composition of family groups was assessed from both capture-recapture data and intensive observations (see Cohas et al, 2006 for details on the observation protocol). Similar protocols have been used since 2008 in the Gran Paradiso and the Llosa valley populations.…”

Section: Field Methods and Sample Collectionmentioning

confidence: 99%

Large-scale genotyping of highly polymorphic loci by next-generation sequencing: how to overcome the challenges to reliably genotype individuals?

et al. 2015

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Studying the different roles of adaptive genes is still a challenge in evolutionary ecology and requires reliable genotyping of large numbers of individuals. Next-generation sequencing (NGS) techniques enable such large-scale sequencing, but stringent data processing is required. Here, we develop an easy to use methodology to process amplicon-based NGS data and we apply this methodology to reliably genotype four major histocompatibility complex (MHC) loci belonging to MHC class I and II of Alpine marmots (Marmota marmota). Our post-processing methodology allowed us to increase the number of retained reads. The quality of genotype assignment was further assessed using three independent validation procedures. A total of 3069 high-quality MHC genotypes were obtained at four MHC loci for 863 Alpine marmots with a genotype assignment error rate estimated as 0.21%. The proposed methodology could be applied to any genetic system and any organism, except when extensive copy-number variation occurs (that is, genes with a variable number of copies in the genotype of an individual). Our results highlight the potential of amplicon-based NGS techniques combined with adequate post-processing to obtain the large-scale highly reliable genotypes needed to understand the evolution of highly polymorphic functional genes.

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Extra-pair paternity in the monogamous alpine marmot (Marmota marmota): the roles of social setting and female mate choice

Cited by 75 publications

References 70 publications

Evidence for high rates of in-pair paternity in the socially monogamous snapping shrimp Alpheus angulosus

Evidence for high rates of in-pair paternity in the socially monogamous snapping shrimp Alpheus angulosus

Faithful or not: direct and indirect effects of climate on extra-pair paternities in a population of Alpine marmots

Large-scale genotyping of highly polymorphic loci by next-generation sequencing: how to overcome the challenges to reliably genotype individuals?

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