Restricted accessMoreSectionsView PDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InRedditEmail Cite this article Petrie Marion and Williams Amanda 1993Peahens lay more eggs for peacocks with larger trainsProc. R. Soc. Lond. B.251127–131http://doi.org/10.1098/rspb.1993.0018SectionRestricted accessArticlePeahens lay more eggs for peacocks with larger trains Marion Petrie Google Scholar Find this author on PubMed Search for more papers by this author and Amanda Williams Google Scholar Find this author on PubMed Search for more papers by this author Marion Petrie Google Scholar Find this author on PubMed Search for more papers by this author and Amanda Williams Google Scholar Find this author on PubMed Search for more papers by this author Published:22 February 1993https://doi.org/10.1098/rspb.1993.0018AbstractReproduction is costly and individual decisions about when and how much to invest in reproduction will relate to potential benefits in terms of offspring survivorship or mating success. For those organisms that can reproduce more than once, individuals should invest relatively more in reproduction when the potential benefits are high. If females gain directly or indirectly from choosing attractive, highly ornamented males, then it could be predicted that females mated to these males should invest more in reproduction. Here we report the first test of this prediction for a lekking species, peafowl (Pavo cristatus), in which males do not provide resources for offspring, and females prefer to mate with those males that possess the most elaborate trains. We find that peahens randomly mated to males that vary in the degree of ornament produce more eggs for those peacocks with more elaborate trains. We could find no evidence to support the possibility that this difference arises as a result of difference between males in their ability to fertilize eggs.FootnotesThis text was harvested from a scanned image of the original document using optical character recognition (OCR) software. As such, it may contain errors. Please contact the Royal Society if you find an error you would like to see corrected. 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V, Vijay N and Sharma V (2021) Genomic Insights Into the Molecular Basis of Sexual Selection in Birds, Frontiers in Ecology and Evolution, 10.3389/fevo.2021.538498, 9 Fan Q, E M, Wei Y, Sun W and Wang H (2021) Mate Choice in Double-Breeding Female Great Tits (Parus Major): Good Males or Compatible Males, Animals, 10.3390/ani11010140, 11:1, (140) Hauber M, Abolins-Abols M, Kim C and Paitz R (2020) Inter-Individual Variation in Anti-Parasitic Egg Rejection Behavior: A Test of the Maternal Investment Hypothesis, Integrative Organismal Biology, 10.1093/iob/obaa014, 2:1, Online publication date: 1-Jan-2020. Lelono A, Riedstra B and Groothuis T (2019) The relationship between male social status, ejaculate and circulating testosterone concentration and female yolk androgen transfer in red junglefowl (Gallus gallus), Hormones and Behavior, 10.1016/j.yhbeh.2019.104580, 116, (104580), Online publication date: 1-Nov-2019. Bründl A, Sorato E, Sallé L, Thiney A, Kaulbarsch S, Chaine A and Russell A (2019) Experimentally induced increases in fecundity lead to greater nestling care in blue tits, Proceedings of the Royal Society B: Biological Sciences, 286:1905, Online publication date: 26-Jun-2019. Robart A and Sinervo B (2019) Females increase parental care, but not fecundity, when mated to high-quality males in a biparental fish, Animal Behaviour, 10.1016/j.anbehav.2018.11.012, 148, (9-18), Online publication date: 1-Feb-2019. Huet des Aunay G, Grenna M, Slabbekoorn H, Nicolas P, Nagle L, Leboucher G, Malacarne G, Draganoiu T and Fusani L (2017) Negative impact of urban noise on sexual receptivity and clutch size in female domestic canaries, Ethology, 10.1111/eth.12659, 123:11, (843-853), Online publication date: 1-Nov-2017. Pischedda A and Chippindale A (2017) Direct benefits of choosing a high-fitness mate can offset the indirect costs associated with intralocus sexual conflict, Evolution, 10.1111/evo.13240, 71:6, (1710-1718), Online publication date: 1-Jun-2017. Sato A, Karino K and Tregenza T (2017) Evidence for Strategic Sex Allocation in the Guppy ( Poecilia reticulata ): Brood Sex Ratio and Size Predict Subsequent Adult Male Mating Success , Ethology, 10.1111/eth.12591, 123:3, (221-229), Online publication date: 1-Mar-2017. Winking J and Koster J (2015) The Fitness Effects of Men’s Family Investments, Human Nature, 10.1007/s12110-015-9237-4, 26:3, (292-312), Online publication date: 1-Sep-2015. Krištofík J, Darolová A, Majtan J, Okuliarová M, Zeman M and Hoi H (2014) Do females invest more into eggs when males sing more attractively? Postmating sexual selection strategies in a monogamous reed passerine, Ecology and Evolution, 10.1002/ece3.1034, 4:8, (1328-1339), Online publication date: 1-Apr-2014. Tennant H, Sonser E and Long T (2014) Hemiclonal analysis of interacting phenotypes in male and female Drosophila melanogaster, BMC Evolutionary Biology, 10.1186/1471-2148-14-95, 14:1, (95), . Raveh S, Sutalo S, Thonhauser K, Thoß M, Hettyey A, Winkelser F and Penn D (2014) Female partner preferences enhance offspring ability to survive an infection, BMC Evolutionary Biology, 10.1186/1471-2148-14-14, 14:1, (14), . Tazzyman S, Iwasa Y and Pomiankowski A (2013) SIGNALING EFFICACY DRIVES THE EVOLUTION OF LARGER SEXUAL ORNAMENTS BY SEXUAL SELECTION, Evolution, 10.1111/evo.12255, 68:1, (216-229), Online publication date: 1-Jan-2014. Bonato M, Evans M, Hasselquist D, Sherley R, Cloete S and Cherry M (2013) Ostrich chick humoral immune responses and growth rate are predicted by parental immune responses and paternal colouration, Behavioral Ecology and Sociobiology, 10.1007/s00265-013-1597-3, 67:12, (1891-1901), Online publication date: 1-Dec-2013. Sheppard J, Clark R, Devries J and Brasher M (2013) Reproductive effort and success of wild female mallards: Does male quality matter?, Behavioural Processes, 10.1016/j.beproc.2013.07.024, 100, (82-90), Online publication date: 1-Nov-2013. Dunn P, Bollmer J, Freeman-Gallant C and Whittingham L (2012) MHC VARIATION IS RELATED TO A SEXUALLY SELECTED ORNAMENT, SURVIVAL, AND PARASITE RESISTANCE IN COMMON YELLOWTHROATS, Evolution, 10.1111/j.1558-5646.2012.01799.x, 67:3, (679-687), Online publication date: 1-Mar-2013. García-López de Hierro L, Moleón M, Ryan P and Tregenza T (2013) Is Carrying Feathers a Sexually Selected Trait in House Sparrows?, Ethology, 10.1111/eth.12053, 119:3, (199-211), Online publication date: 1-Mar-2013. Durrant R and Ellis B (2012) Evolutionary Psychology Handbook of Psychology, Second Edition, 10.1002/9781118133880.hop203002 Grana S, Sakaluk S, Bowden R, Doellman M, Vogel L and Thompson C (2012) Reproductive allocation in female house wrens is not influenced by experimentally altered male attractiveness, Behavioral Ecology and Sociobiology, 10.1007/s00265-012-1378-4, 66:9, (1247-1258), Online publication date: 1-Sep-2012. Alberts S and Fitzpatrick C (2012) Paternal care and the evolution of exaggerated sexual swellings in primates, Behavioral Ecology, 10.1093/beheco/ars052, 23:4, (699-706), Online publication date: 1-Jul-2012. Pariser E, Gilbert L, Hazon N, Arnold K and Graves J (2011) Mind the gap: the ratio of yolk androgens and antioxidants varies between sons and daughters dependent on paternal attractiveness, Behavioral Ecology and Sociobiology, 10.1007/s00265-011-1300-5, 66:4, (519-527), Online publication date: 1-Apr-2012. Pischedda A, Stewart A, Little M and Rice W (2010) Male genotype influences female reproductive investment in Drosophila melanogaster, Proceedings of the Royal Society B: Biological Sciences, 278:1715, (2165-2172), Online publication date: 22-Jul-2011. Dakin R and Montgomerie R (2011) Peahens prefer peacocks displaying more eyespots, but rarely, Animal Behaviour, 10.1016/j.anbehav.2011.03.016, 82:1, (21-28), Online publication date: 1-Jul-2011. Santos E and Macedo R (2011) Load Lightening in Southern Lapwings: Group-Living Mothers Lay Smaller Eggs than Pair-Living Mothers, Ethology, 10.1111/j.1439-0310.2011.01905.x, 117:6, (547-555), Online publication date: 1-Jun-2011. Sato A and Karino K (2010) Offspring sex ratio produced by female guppies in the wild correlates with sexual ornaments of their sons, Journal of Ethology, 10.1007/s10164-010-0243-z, 29:2, (221-226), Online publication date: 1-May-2011. Giraudeau M, Duval C, Czirják G, Bretagnolle V, Eraud C, McGraw K and Heeb P (2010) Maternal investment of female mallards is influenced by male carotenoid-based coloration, Proceedings of the Royal Society B: Biological Sciences, 278:1706, (781-788), Online publication date: 7-Mar-2011. Sanz J and García-Navas V (2010) Nest ornamentation in blue tits: is feather carrying ability a male status signal?, Behavioral Ecology, 10.1093/beheco/arq199, 22:2, (240-247), ., Online publication date: 1-Mar-2011. McFARLANE M, CHERRY M and EVANS M (2010) Female Cape sugarbirds (Promerops cafer) modify egg investment both for extra-pair mates and for male tail length, Journal of Evolutionary Biology, 10.1111/j.1420-9101.2010.02067.x, 23:9, (1998-2003), Online publication date: 1-Sep-2010. Sato A and Karino K (2010) Female Control of Offspring Sex Ratios Based on Male Attractiveness in the Guppy, Ethology, 10.1111/j.1439-0310.2010.01767.x, 116:6, (524-534) Garcia-Fernandez V, Amy M, Lacroix A, Malacarne G and Leboucher G Eavesdropping on Male Singing Interactions Leads to Differential Allocation in Eggs, Ethology, 10.1111/j.1439-0310.2010.01784.x, (no-no) D’Alba L, Shawkey M, Korsten P, Vedder O, Kingma S, Komdeur J and Beissinger S (2010) Differential deposition of antimicrobial proteins in blue tit (Cyanistes caeruleus) clutches by laying order and male attractiveness, Behavioral Ecology and Sociobiology, 10.1007/s00265-010-0919-y, 64:6, (1037-1045), Online publication date: 1-May-2010. Evans J, Box T, Brooshooft P, Tatler J and Fitzpatrick J (2010) Females increase egg deposition in favor of large males in the rainbowfish, Melanotaenia australis, Behavioral Ecology, 10.1093/beheco/arq006, 21:3, (465-469), ., Online publication date: 1-May-2010. Stiver K and Alonzo S (2009) Parental and Mating Effort: Is There Necessarily a Trade-Off?, Ethology, 10.1111/j.1439-0310.2009.01707.x, 115:12, (1101-1126), Online publication date: 1-Dec-2009. HALE M, VERDUIJN M, MØLLER A, WOLFF K and PETRIE M (2009) Is the peacock’s train an honest signal of genetic quality at the major histocompatibility complex?, Journal of Evolutionary Biology, 10.1111/j.1420-9101.2009.01746.x, 22:6, (1284-1294), Online publication date: 1-Jun-2009. López-Rull I and Gil D (2009) Do female spotless starlings Sturnus unicolor adjust maternal investment according to male attractiveness? , Journal of Avian Biology, 10.1111/j.1600-048X.2009.04553.x, 40:3, (254-262), Online publication date: 1-May-2009. Harris W and Uller T (2009) Reproductive investment when mate quality varies: differential allocation versus reproductive compensation, Philosophical Transactions of the Royal Society B: Biological Sciences, 364:1520, (1039-1048), Online publication date: 27-Apr-2009. Koh T, Seah W, Yap L and Li D (2009) Pheromone-based female mate choice and its effect on reproductive investment in a spitting spider, Behavioral Ecology and Sociobiology, 10.1007/s00265-009-0735-4, 63:6, (923-930), Online publication date: 1-Apr-2009. Pryke S and Griffith S (2009) Genetic Incompatibility Drives Sex Allocation and Maternal Investment in a Polymorphic Finch, Science, 10.1126/science.1168928, 323:5921, (1605-1607), Online publication date: 20-Mar-2009. Wedekind C, Evanno G, Urbach D, Jacob A and Müller R (2008) ‘Good-genes’ and ‘compatible-genes’ effects in an Alpine whitefish and the information content of breeding tubercles over the course of the spawning season, Genetica, 10.1007/s10709-008-9251-0, 134:1, (21-30), Online publication date: 1-Sep-2008. Takahashi M, Arita H, Hiraiwa-Hasegawa M and Hasegawa T (2008) Peahens do not prefer peacocks with more elaborate trains, Animal Behaviour, 10.1016/j.anbehav.2007.10.004, 75:4, (1209-1219), Online publication date: 1-Apr-2008. Helfenstein F, Losdat S, Saladin V and Richner H (2008) Females of carotenoid-supplemented males are more faithful and produce higher quality offspring, Behavioral Ecology, 10.1093/beheco/arn091, 19:6, (1165-1172), ., Online publication date: 1-Nov-2008. Wedekind C, Evanno G, Urbach D, Jacob A and Müller R (2007) ‘Good-genes’ and ‘compatible-genes’ effects in an Alpine whitefish and the information content of breeding tubercles over the course of the spawning season, Genetica, 10.1007/s10709-007-9164-3, 132:2, (199-208), Online publication date: 29-Nov-2007. Skinner A and Watt P (2007) Strategic egg allocation in the zebra fish, Danio rerio, Behavioral Ecology, 10.1093/beheco/arm059, 18:5, (905-909), Online publication date: 1-Sep-2007., Online publication date: 1-Sep-2007. Hegyi G and Török J (2007) Developmental plasticity in a passerine bird: an experiment with collared flycatchers Ficedula albicollis, Journal of Avian Biology, 10.1111/j.0908-8857.2007.03872.x, 38:3, (327-334), Online publication date: 1-May-2007. Hegyi G and Török J (2007) Developmental plasticity in a passerine bird: an experiment with collared flycatchers Ficedula albicollis , Journal of Avian Biology, 10.1111/J.2007.0908-8857.03872.x, 38:3, (327-334), Online publication date: 1-May-2007. Loyau A, Saint Jalme M, Mauget R and Sorci G (2006) Male sexual attractiveness affects the investment of maternal resources into the eggs in peafowl (Pavo cristatus), Behavioral Ecology and Sociobiology, 10.1007/s00265-006-0337-3, 61:7, (1043-1052), Online publication date: 5-Apr-2007. Gilbert L, Bulmer E, Arnold K and Graves J (2007) Yolk androgens and embryo sex: Maternal effects or confounding factors?, Hormones and Behavior, 10.1016/j.yhbeh.2006.10.005, 51:2, (231-238), Online publication date: 1-Feb-2007. Altwegg R, Schaub M and Roulin A (2007) Age‐Specific Fitness Components and Their Temporal Variation in the Barn Owl, The American Naturalist, 10.1086/510215, 169:1, (47-61), Online publication date: 1-Jan-2007. Navara K, Badyaev A, Mendonça M and Hill G (2006) Yolk Antioxidants Vary with Male Attractiveness and Female Condition in the House Finch ( Carpodacus mexicanus ) , Physiological and Biochemical Zoology, 10.1086/507661, 79:6, (1098-1105), Online publication date: 1-Nov-2006. Forsman A and Hagman M (2007) CALLING IS AN HONEST INDICATOR OF PATERNAL GENETIC QUALITY IN POISON FROGS, Evolution, 10.1111/j.0014-3820.2006.tb01852.x, 60:10, (2148-2157), Online publication date: 1-Oct-2006. Osorno J, Morales J, Moreno J, Merino S, Tomás G and Vásquez R (2006) Evidence for differential maternal allocation to eggs in relation to manipulated male attractiveness in the pied flycatcher (Ficedula hypoleuca), Journal of Ornithology, 10.1007/s10336-006-0085-1, 147:4, (605-611), Online publication date: 1-Oct-2006. Helm B, Piersma T and van der Jeugd H (2006) Sociable schedules: interplay between avian seasonal and social behaviour, Animal Behaviour, 10.1016/j.anbehav.2005.12.007, 72:2, (245-262), Online publication date: 1-Aug-2006. Gilbert L, Williamson K, Hazon N and Graves J (2006) Maternal effects due to male attractiveness affect offspring development in the zebra finch, Proceedings of the Royal Society B: Biological Sciences, 273:1595, (1765-1771), Online publication date: 22-Jul-2006.Dubois N, Dale Kennedy E and Getty T (2006) Surplus nest boxes and the potential for polygyny affect clutch size and offspring sex ratio in house wrens, Proceedings of the Royal Society B: Biological Sciences, 273:1595, (1751-1757), Online publication date: 22-Jul-2006. WILLIAMSON K, SURAI P and GRAVES J (2006) Yolk antioxidants and mate attractiveness in the Zebra Finch, Functional Ecology, 10.1111/j.1365-2435.2006.01087.x, 20:2, (354-359), Online publication date: 1-Apr-2006. Harper D (2006) Maynard Smith: Amplifying the reasons for signal reliability, Journal of Theoretical Biology, 10.1016/j.jtbi.2005.08.034, 239:2, (203-209), Online publication date: 1-Mar-2006. Forsman A and Hagman M (2006) CALLING IS AN HONEST INDICATOR OF PATERNAL GENETIC QUALITY IN POISON FROGS, Evolution, 10.1554/06-258.1, 60:10, (2148), . Szentirmai I, Komdeur J and Székely T (2005) What makes a nest-building male successful? Male behavior and female care in penduline tits, Behavioral Ecology, 10.1093/beheco/ari080, 16:6, (994-1000), Online publication date: 1-Nov-2005. Johnsen A, Delhey K, Schlicht E, Peters A and Kempenaers B (2005) Male sexual attractiveness and parental effort in blue tits: a test of the differential allocation hypothesis, Animal Behaviour, 10.1016/j.anbehav.2005.01.005, 70:4, (877-888), Online publication date: 1-Oct-2005. E. Gorman H, E. Arnold K and G. Nager R (2005) Incubation effort in relation to male attractiveness in zebra finches Taeniopygia guttata , Journal of Avian Biology, 10.1111/j.2005.0908-8857.03464.x, 36:5, (413-420), Online publication date: 1-Sep-2005. Rutstein A, Gilbert L and Tomkins J (2005) Experience counts: lessons from studies of differential allocation, Behavioral Ecology, 10.1093/beheco/ari061, 16:5, (957-960), Online publication date: 1-Sep-2005. GARCIA-GONZALEZ F and SIMMONS L (2005) The evolution of polyandry: intrinsic sire effects contribute to embryo viability, Journal of Evolutionary Biology, 10.1111/j.1420-9101.2005.00889.x, 18:4, (1097-1103), Online publication date: 1-Jul-2005. Uller T, Ekl�f J and Andersson S (2005) Female egg investment in relation to male sexual traits and the potential for transgenerational effects in sexual selection, Behavioral Ecology and Sociobiology, 10.1007/s00265-004-0886-2, 57:6, (584-590), Online publication date: 1-Apr-2005. Gilbert L, Rutstein A, Hazon N and Graves J (2005) Sex-biased investment in yolk androgens depends on female quality and laying order in zebra finches (Taeniopygia guttata), Naturwissenschaften, 10.1007/s00114-004-0603-z, 92:4, (178-181), Online publication date: 1-Apr-2005. Michl G, Török J, Péczely P, Garamszegi L and Schwabl H (2004) Female collared flycatchers adjust yolk testosterone to male age, but not to attractiveness, Behavioral Ecology, 10.1093/beheco/ari002, 16:2, (383-388), Online publication date: 1-Mar-2005. Niall Daisley J, Bromundt V, Möstl E and Kotrschal K (2005) Enhanced yolk testosterone influences behavioral phenotype independent of sex in Japanese quail chicks Coturnix japonica, Hormones and Behavior, 10.1016/j.yhbeh.2004.09.006, 47:2, (185-194), Online publication date: 1-Feb-2005. Rudolfsen G, Figenschou L, Folstad I, Nordeide J and Soreng E (2005) Potential fitness benefits from mate selection in the Atlantic cod (Gadus morhua), Journal of Evolutionary Biology, 10.1111/j.1420-9101.2004.00778.x, 18:1, (172-179), Online publication date: 1-Jan-2005. Török J, Hegyi G, Tóth L and Könczey R (2004) Unpredictable food supply modifies costs of reproduction and hampers individual optimization, Oecologia, 10.1007/s00442-004-1667-3, 141:3, (432-443), Online publication date: 1-Nov-2004. Wedell N and Karlsson B (2003) Paternal investment directly affects female reproductive effort in an insect, Proceedings of the Royal Society of London. Series B: Biological Sciences, 270:1528, (2065-2071), Online publication date: 7-Oct-2003. Parker T (2007) GENETIC BENEFITS OF MATE CHOICE SEPARATED FROM DIFFERENTIAL MATERNAL INVESTMENT IN RED JUNGLEFOWL (GALLUS GALLUS), Evolution, 10.1111/j.0014-3820.2003.tb00393.x, 57:9, (2157-2165), Online publication date: 1-Sep-2003. Kotiaho J, Simmons L, Hunt J and Tomkins J (2003) Males Influence Maternal Effects That Promote Sexual Selection: A Quantitative Genetic Experiment with Dung Beetles Onthophagus taurus , The American Naturalist, 10.1086/375173, 161:6, (852-859), Online publication date: 1-Jun-2003. Dubois N and Getty T (2003) Empty Nests do not Affect Female Mate Choice or Maternal Investment in House Wrens, The Condor, 10.1093/condor/105.2.382, 105:2, (382-387), Online publication date: 1-May-2003. Durrant R and Ellis B (2003) Evolutionary Psychology Handbook of Psychology, 10.1002/0471264385.wei0301 Dubois N and Getty T (2003) EMPTY NESTS DO NOT AFFECT FEMALE MATE CHOICE OR MATERNAL INVESTMENT IN HOUSE WRENS, The Condor, 10.1650/0010-5422(2003)105[0382:ENDNAF]2.0.CO;2, 105:2, (382), . Parker T (2003) GENETIC BENEFITS OF MATE CHOICE SEPARATED FROM DIFFERENTIAL MATERNAL INVESTMENT IN RED JUNGLEFOWL (GALLUS GALLUS), Evolution, 10.1554/02-735, 57:9, (2157), . Wedekind C (2002) Sexual Selection and Life-History Decisions: Implications for Supportive Breeding and the Management of Captive Populations, Conservation Biology, 10.1046/j.1523-1739.2002.01217.x, 16:5, (1204-1211), Online publication date: 1-Oct-2002. Badyaev A (2002) Putting Sexual Traits into the Context of an Organism: A Life-History Perspective in Studies of Sexual Selection, The Auk, 10.2307/4089879, 119:2, (301-310), Online publication date: 1-Apr-2002. Wedekind C, Müller R and Spicher H (2001) Potential genetic benefits of mate selection in whitefish, Journal of Evolutionary Biology, 10.1046/j.1420-9101.2001.00349.x, 14:6, (980-986), Online publication date: 1-Nov-2001. Sheldon B (2000) Differential allocation: tests, mechanisms and implications, Trends in Ecology & Evolution, 10.1016/S0169-5347(00)01953-4, 15:10, (397-402), Online publication date: 1-Oct-2000. Cunningham E and Russell A (2000) Egg investment is influenced by male attractiveness in the mallard, Nature, 10.1038/35003565, 404:6773, (74-77), Online publication date: 1-Mar-2000. Rohde P, Johnsen A and Lifjeld J (1999) Parental Care and Sexual Selection in the Bluethroat, Luscinia s. svecica: A Field-experimental Test of the Differential Allocation Hypothesis, Ethology, 10.1046/j.1439-0310.1999.00444.x, 105:8, (651-663), Online publication date: 1-Aug-1999. Oksanen T, Alatalo R, Horne T, Koskela E, Mappes J and Mappes T (1999) Maternal effort and male quality in the bank vole, Clethrionomys glareolus, Proceedings of the Royal Society of London. Series B: Biological Sciences, 10.1098/rspb.1999.0806, 266:1427, (1495-1499), Online publication date: 22-Jul-1999. Stone E, Millam J, El Halawani M, Phillips R and Redig P (1999) Determinants of reproductive success in force-re-paired cockatiels (Nymphicus hollandicus), Applied Animal Behaviour Science, 10.1016/S0168-1591(99)00008-8, 63:3, (209-218), Online publication date: 1-Apr-1999. CUNNINGHAM E and BIRKHEAD T (1998) Sex roles and sexual selection, Animal Behaviour, 10.1006/anbe.1998.0953, 56:6, (1311-1321), Online publication date: 1-Dec-1998. RINTAMÄKI P, LUNDBERG A, ALATALO R and HÖGLUND J (1998) Assortative mating and female clutch investment in black grouse, Animal Behaviour, 10.1006/anbe.1998.0904, 56:6, (1399-1403), Online publication date: 1-Dec-1998. MØLLER A and THORNHILL R (1998) Male parental care, differential parental investment by females and sexual selection, Animal Behaviour, 10.1006/anbe.1998.0731, 55:6, (1507-1515), Online publication date: 1-Jun-1998. Kempenaers B and Sheldon B (1998) Confounded correlations: a reply to Lifjeld et al. and Wagner et al., Animal Behaviour, 10.1006/anbe.1997.0607, 55:1, (241-244), Online publication date: 1-Jan-1998. Emlen D (1997) Diet alters male horn allometry in the beetle Onthophagus acuminatus (Coleoptera: Scarabaeidae), Proceedings of the Royal Society of London. Series B: Biological Sciences, 264:1381, (567-574), Online publication date: 22-Apr-1997. KEMPENAERS B and SHELDON B (1997) Studying paternity and paternal care: pitfalls and problems, Animal Behaviour, 10.1006/anbe.1996.0377, 53:2, (423-427), Online publication date: 1-Feb-1997. Waage J and Gowaty P (1997) Myths of Genetic Determinism Feminism and Evolutionary Biology, 10.1007/978-1-4615-5985-6_29, (585-613), . Gowaty P (1997) Sexual Dialectics, Sexual Selection, and Variation in Reproductive Behavior Feminism and Evolutionary Biology, 10.1007/978-1-4615-5985-6_15, (351-384), . Stamps J (1997) The Role of Females in Extrapair Copulations in Socially Monogamous Territorial Animals Feminism and Evolutionary Biology, 10.1007/978-1-4615-5985-6_12, (294-319), . Birkhead T and Petrie M (1997) Ejaculate features and sperm utilization in peafowl Pavo cristatus, Proceedings of the Royal Society of London. Series B: Biological Sciences, 261:1361, (153-158), Online publication date: 22-Aug-1995.Smith H (1997) Experimental demonstration of a trade-off between mate attraction and paternal care, Proceedings of the Royal Society of London. Series B: Biological Sciences, 260:1357, (45-51), Online publication date: 22-Apr-1995. JOHNSTONE R (2008) SEXUAL SELECTION, HONEST ADVERTISEMENT AND THE HANDICAP PRINCIPLE: REVIEWING THE EVIDENCE, Biological Reviews, 10.1111/j.1469-185X.1995.tb01439.x, 70:1, (1-65), Online publication date: 1-Feb-1995. This Issue22 February 1993Volume 251Issue 1331 Article InformationDOI:https://doi.org/10.1098/rspb.1993.0018Published by:Royal SocietyPrint ISSN:0962-8452Online ISSN:1471-2954History: Manuscript received16/11/1992Manuscript accepted30/11/1992Published online01/01/1997Published in print22/02/1993 License:Scanned images copyright © 2017, Royal Society Citations and impact Large datasets are available through Proceedings B's partnership with Dryad