{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,3]],"date-time":"2025-10-03T08:52:11Z","timestamp":1759481531755},"reference-count":74,"publisher":"Oxford University Press (OUP)","issue":"3","license":[{"start":{"date-parts":[[2005,2,25]],"date-time":"2005-02-25T00:00:00Z","timestamp":1109289600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Evolutionary Biology"],"published-print":{"date-parts":[[2005,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Hypotheses for the adaptive significance of extreme female\u2010biased sexual size dimorphism (SSD) generally assume that in dimorphic species males rarely interfere with each other. Here we provide the first multivariate examination of sexual selection because of male\u2013male competition over access to females in a species with \u2018dwarf\u2019 males, the orb\u2010weaving spider <jats:italic>Argiope aurantia<\/jats:italic>. Male <jats:italic>A. aurantia<\/jats:italic> typically try to mate opportunistically during the female's final moult when she is defenceless. We show that, contrary to previous hypotheses, the local operational sex ratio (males per female on the web) is male\u2010biased most of the season. Both interference and scramble competition occur during opportunistic mating, the former leading to significant selection for large male body size. Male condition and leg length had no effect on mating success independent of size. We discuss these findings in the context of the evolution of extreme female\u2010biased SSD in this clade.<\/jats:p>","DOI":"10.1111\/j.1420-9101.2005.00868.x","type":"journal-article","created":{"date-parts":[[2005,4,18]],"date-time":"2005-04-18T10:00:31Z","timestamp":1113818431000},"page":"629-641","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":57,"title":["Competing dwarf males: sexual selection in an orb\u2010weaving spider"],"prefix":"10.1093","volume":"18","author":[{"given":"M. W.","family":"FOELLMER","sequence":"first","affiliation":[]},{"given":"D. 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