{"date_created":"2018-12-11T12:05:52Z","page":"1031 - 1035","title":"Primary sex ratio adjustment by ant queens in response to local mate competition","_id":"3915","oa_version":"None","volume":69,"date_updated":"2021-01-12T07:53:10Z","day":"01","publication":"Animal Behaviour","abstract":[{"text":"In the ant Cardiocondyla obscurior, wingless males compete with nestmate males for access to female mating\r\npartners, leading to local mate competition (LMC). Queen number varies between colonies, resulting in\r\nvariation in the strength of LMC. Cremer &amp; Heinze (2002, Proceedings of the Royal Society of London, Series B,\r\n269, 417–422) showed that colonies responded to increasing queen number by producing a less femalebiased\r\nsex ratio, as predicted by LMC theory. However, the proximate mechanisms responsible for this\r\nvariation in the sex ratio could not be determined because the study was restricted to adult sex ratios.With\r\nLMC, the primary sex ratio (proportion of haploid eggs laid by the queen) is expected to be female biased,\r\nwhich lowers the conflict between queens and workers over sex allocation. We compared the primary sex\r\nratios laid by queens in monogynous and in polygynous experimental colonies of C. obscurior. The\r\nproportion of haploid eggs laid by queens was significantly lower in single-queen than in multiple-queen\r\ncolonies. Furthermore, queens rapidly adjusted their primary sex ratios to changes in colony queen\r\nnumber. This is the first report of an adaptive adjustment of the primary sex ratio in response to LMC by\r\nant queens.","lang":"eng"}],"publist_id":"2237","year":"2005","status":"public","intvolume":"        69","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","extern":"1","publisher":"Elsevier","doi":"10.1016/j.anbehav.2004.09.005","language":[{"iso":"eng"}],"issue":"5","publication_status":"published","author":[{"full_name":"De Menten, Ludivine","last_name":"De Menten","first_name":"Ludivine"},{"orcid":"0000-0002-2193-3868","first_name":"Sylvia","last_name":"Cremer","full_name":"Cremer, Sylvia","id":"2F64EC8C-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Heinze, Jürgen","last_name":"Heinze","first_name":"Jürgen"},{"full_name":"Aron, Serge","last_name":"Aron","first_name":"Serge"}],"citation":{"apa":"De Menten, L., Cremer, S., Heinze, J., &#38; Aron, S. (2005). Primary sex ratio adjustment by ant queens in response to local mate competition. <i>Animal Behaviour</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.anbehav.2004.09.005\">https://doi.org/10.1016/j.anbehav.2004.09.005</a>","mla":"De Menten, Ludivine, et al. “Primary Sex Ratio Adjustment by Ant Queens in Response to Local Mate Competition.” <i>Animal Behaviour</i>, vol. 69, no. 5, Elsevier, 2005, pp. 1031–35, doi:<a href=\"https://doi.org/10.1016/j.anbehav.2004.09.005\">10.1016/j.anbehav.2004.09.005</a>.","ista":"De Menten L, Cremer S, Heinze J, Aron S. 2005. Primary sex ratio adjustment by ant queens in response to local mate competition. Animal Behaviour. 69(5), 1031–1035.","ieee":"L. De Menten, S. Cremer, J. Heinze, and S. Aron, “Primary sex ratio adjustment by ant queens in response to local mate competition,” <i>Animal Behaviour</i>, vol. 69, no. 5. Elsevier, pp. 1031–1035, 2005.","ama":"De Menten L, Cremer S, Heinze J, Aron S. Primary sex ratio adjustment by ant queens in response to local mate competition. <i>Animal Behaviour</i>. 2005;69(5):1031-1035. doi:<a href=\"https://doi.org/10.1016/j.anbehav.2004.09.005\">10.1016/j.anbehav.2004.09.005</a>","chicago":"De Menten, Ludivine, Sylvia Cremer, Jürgen Heinze, and Serge Aron. “Primary Sex Ratio Adjustment by Ant Queens in Response to Local Mate Competition.” <i>Animal Behaviour</i>. Elsevier, 2005. <a href=\"https://doi.org/10.1016/j.anbehav.2004.09.005\">https://doi.org/10.1016/j.anbehav.2004.09.005</a>.","short":"L. De Menten, S. Cremer, J. Heinze, S. Aron, Animal Behaviour 69 (2005) 1031–1035."},"type":"journal_article","month":"05","date_published":"2005-05-01T00:00:00Z"}