caa a22 4500 477091288 CHVBK 20180405111515.0 cr unu---uuuuu 170330e19960901xx s 000 0 eng 10.1007/BF01237880 doi (NATIONALLICENCE)springer-10.1007/BF01237880 When should a female avoid adding eggs to the clutch of another female? A simultaneous oviposition and sex allocation game [Elektronische Daten] [Cornelis Nagelkerke, Minus Van Baalen, Maurice Sabelis] Summary: Avoidance of double oviposition (ADO) is the strategy not to oviposit on food patches where another female has oviposited before. If two females oviposit on the same patch, competitive and mating interactions within and between broods may lead to both a clutch size game and a sex allocation game between the two visitors. Though the two games interact, they are usually considered separately. Here, the ESS conditions for ADO are investigated in an analysis that combines the two games into one. The analysis strengthens the notion that it is really ADO that needs to be explained, because role-dependent net pay-off from an additional egg is most likely to favour double oviposition (DO). To a first female, the net payoff includes the effect on the eggs already present, whereas to a second female only the egg's gross pay-off matters. ADO is the evolutionary stable strategy (ESS) if there are enough patches still without eggs and either (1) the fitness of an additional egg is so low that the first female would not lay it even in the absence of detrimental effects on earlier offspring, so neither would a second female, or (2) differences in either the survival probability of the offspring or their reproductive success are sufficient to counterbalance the differential interest in the eggs already present. The first condition requires that eggs are relatively large, because then the decrease in pay-off between two successive eggs can be large. The second condition may be met when there is a time interval between ovipositions of subsequent females. The resulting developmental lag of the second clutch will (1) diminish its ability to compete for food and (2) lower its reproductive success when there is local mate competition and sons are too late to mate with daughters of the first female. If sons of first and second females compete on equal terms, however, ADO is unlikely. Male migration between patches reduces the influence of sex allocation strategies on clutch size decisions; the same holds for small clutch sizes. To illustrate the importance of considering sex allocation and clutch size decisions in an integrated way, oviposition strategies of plant-inhabiting predatory mites (Acari: Phytoseiidae) are discussed. Chapman & Hall, 1996 oviposition nationallicence avoidance of double oviposition nationallicence sex allocation nationallicence local mate competition nationallicence Phytoseiidae nationallicence Nagelkerke Cornelis Department of Biology, Imperial College at Silwood Park, SL5 7EN, Ascot, Berkshire, UK aut Van Baalen Minus Department of Biological Sciences, Ecosystems Analysis and Management Group, University of Warwick, CV4 7AL, Coventry, UK aut Sabelis Maurice Department of Pure and Applied Ecology, University of Amsterdam, Kruislaan 320, 1098 SM, Amsterdam, The Netherlands aut Evolutionary Ecology Kluwer Academic Publishers 10/5(1996-09-01), 475-497 0269-7653 10:5<475 1996 10 10682 https://doi.org/10.1007/BF01237880 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01237880 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nagelkerke Cornelis Department of Biology, Imperial College at Silwood Park, SL5 7EN, Ascot, Berkshire, UK aut NATIONALLICENCE 700 1- Van Baalen Minus Department of Biological Sciences, Ecosystems Analysis and Management Group, University of Warwick, CV4 7AL, Coventry, UK aut NATIONALLICENCE 700 1- Sabelis Maurice Department of Pure and Applied Ecology, University of Amsterdam, Kruislaan 320, 1098 SM, Amsterdam, The Netherlands aut NATIONALLICENCE 773 0- Evolutionary Ecology Kluwer Academic Publishers 10/5(1996-09-01), 475-497 0269-7653 10:5<475 1996 10 10682 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer