Mismatched partners that achieve postpairing behavioral similarity improve their reproductive success.

نویسندگان

  • Chloé Laubu
  • François-Xavier Dechaume-Moncharmont
  • Sébastien Motreuil
  • Cécile Schweitzer
چکیده

Behavioral similarity between partners is likely to promote within-pair compatibility and to result in better reproductive success. Therefore, individuals are expected to choose a partner that is alike in behavioral type. However, mate searching is very costly and does not guarantee finding a matching partner. If mismatched individuals pair, they may benefit from increasing their similarity after pairing. We show in a monogamous fish species-the convict cichlid-that the behavioral similarity between mismatched partners can increase after pairing. This increase resulted from asymmetrical adjustment because only the reactive individual became more alike its proactive partner, whereas the latter did not change its behavior. The mismatched pairs that increased their similarity not only improved their reproductive success but also raised it up to the level of matched pairs. While most studies assume that assortative mating results from mate choice, our study suggests that postpairing adjustment could be an alternative explanation for the high behavioral similarity between partners observed in the field. It also explains why interindividual behavioral differences can be maintained within a given population.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Divorce in the barn owl: securing a compatible or better mate entails the cost of re-pairing with a less ornamented female mate.

Two nonmutually exclusive hypotheses can explain why divorce is an adaptive strategy to improve reproductive success. Under the 'better option hypothesis', only one of the two partners initiates divorce to secure a higher-quality partner and increases reproductive success after divorce. Under the 'incompatibility hypothesis', partners are incompatible and hence they may both increase reproducti...

متن کامل

Editorial: Biotrophic Plant-Microbe Interactions

Organisms inhabit the biosphere not as isolated entities: they interact with others. These may be individuals of the same species. In fact, the most common interactions are likely to be with very different beings. The interactions may be fleeting, or life-long, they may be simply sharing the same space, or may be complex behavioral and developmental processes (Buxa et al.; Genre and Russo) from...

متن کامل

Behavioural Syndromes, Partner Compatibility and Reproductive Performance in Stellers Jays

When studying how monogamous animals choose a mate, individuals in a variety of species have been found to prefer partners with traits similar to their own phenotype (Burley 1983; Cooke & Davies 1983; Marzluff & Balda 1988). If they are high-quality traits yielding advantages (e.g. large body size), then assortative pairing may result when high-quality competitors acquire their preferred partne...

متن کامل

The benefits of costly signaling: Meriam turtle hunters

Hunting, particularly when it involves large game that is extensively shared, has been suggested to serve as a form of costly signaling by hunters, serving to attract mates and allies or to deter competitors. Empirical evidence presented elsewhere on turtle hunting practiced by Meriam people of Torres Strait, Australia, supports several key predictions of the costly signaling account. Here we p...

متن کامل

Lifestyle-Related Factors Associated with Reproductive Health in Couples Seeking Fertility Treatments: Results of A Pilot Study

Objective The success of assisted reproductive technology (ART) may be influenced by male and female lifestyle-related factors. The objective of this pilot study was to evaluate the feasibility of conducting a larger prospective cohort study, which will aim at determining the independent contribution of male and female lifestyle-related factors to ART success. The study was also designed to exa...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Science advances

دوره 2 3  شماره 

صفحات  -

تاریخ انتشار 2016