Armaments and ornaments: An evolutionary explanation of traits of dual utility

Biological Journal of the Linnean Society

Volumn 58, Issue 4, 1996, Pages 385-399

  Berglund, Anders ^a   Bisazza, Angelo ^b   Pilastro, Andrea ^c  

^a UPPSALA UNIVERSITY   (Sweden)

^b Dipartemento di Psicologia Generale   (Italy)

^c UNIVERSITY OF PADOVA   (Italy)

Author keywords

mate choice; mating competition; sexual selection; weapon badge

Indexed keywords

EID: 0029999939     PISSN: 00244066     EISSN: None     Source Type: Journal    
DOI: 10.1006/bijl.1996.0043     Document Type: Article

References (165)

1. Alcock J, Gwynne DT, Dadour IR. 1989. Acoustic signalling, territoriality and mating in whistling moth, Hecatesia thyridion (Agatistidae) Journal of Insect Behavior 2: 27-37.
2. Alcock J, Pyle DW. 1979. The complex courtship behaviour of Physiofora demandata (F.) (Diptera: Otitidae). Zeitschrift für Tierpsychologie 49: 352-362.
3. Alexander RD. 1975. Natural selection and specialized chorusing behavior in acoustical insects. In: Pimentel D, ed. Insects, science and society. Neu York: Academic Press.
4. Andersson M. 1994. Sexual selection. Princeton. Princeton University Press
5. Andersson M. 1982. Sexual selection, natural selection and quality advertisement. Biological Journal of the Linnean Society 17: 375-393
6. Arak A. 1983. Sexual selection by male-male competition in the natterjack toad choruses. Nature 306: 261-262.
7. Arnold SJ. 1983. Sexual selection, the interface between theory and empiricism. In: Bateson PP, ed. Mate choice. Cambridge: Cambridge University Press, 67-107.
8. Bakker TCM. 1986. Aggresiveness in sticklebacks (Gasterosteus aculeatus L.). a behaviour-genetic study. Behaviour 98: 1-144.
9. Balmford A, Rosser AM, Albon SD. 1992. Correlates of female choice in resource-defending antelope. Behavioral Ecology and Sociobiology 31: 107-114.
10. Balph MH, Balph DF, Romesburg HC. 1979. Social status signalling in winter flocking bird: an examination of current hypothesis Auk 96: 78-93.
11. Barrette C, Vandal D. 1990. Sparring, relative antler size, and assessment in male caribou. Behavioral Ecology and Sociobiology 26: 383-387.
12. Basolo AL. 1990. Female preference predates the evolution of the sword in swordtail fish. Science 250: 808-810
13. Beani L, Dessí-Fulgheri F. 1995. Mate choice in the grey partridge, Perdix perdix: role of male physical and behavioural traits. Animal Behaviour 49: 347-306.
14. Berger J, Cunningham C. 1991. Bellows, copulations, and sexual selection in bison (Bison bison) Behavioral Ecology 2: 1-6.
15. Berglund A, Rosenqvist G, Svensson I. 1986. Mate choice, fecundity and sexual dimorphism in two pipefish species (Syngnathidae). Behavioral Ecology and Sociobiology 19: 301-307
16. Bildsoe M. 1988. Aggressive, sexual, and foraging behaviour in Poecilia velifera (Pisces: Poeciliidae) during captivity. Ethology 79: 1-12
17. Bisazza A, Marconato A, Marin G. 1989a. Male competition and female choice in Padogabius martensi (Pisces, Gobiidae). Animal Behaviour 38: 406-413.
18. Bisazza A, Marconato A, Marin G. 1989b. Male mate preference in the mosquitofish Gambusia holbrooki. Ethology 83: 335-343.
19. Bisazza A, Marin G. 1991. Male size and female mate choice in the eastern mosquitofish (Gambusia holbrooki: Poeciliidae). Copeia 1991,(3): 730-735.
20. Boake CRB, Capranica RR. 1982. Aggressive signal in "Courtship" chirp of a gregarious cricket. Science 218: 380-582.
21. Borgia G. 1979. Sexual selection and the evolution of mating systems. In: Blum MS, Blum NA, eds Sexual selection and reproductive competition in insects. New York: Academic Press, 19-80.
22. Borgia G. 1981. Mate selection in the flv Scatofaga stercoraria Female choice in a male controlled system. Annual Behaviour 29: 71-80.
23. Borgia G, Collins K. 1989. Female choice for parasite free male satin bowerbirds and the evolution of bright male plumage. Behavioral Ecology and Sociobiology 25: 443-454.
24. Bowyer RT, Kitchen DW, 1987. Sex and age-class differences in vocalization of Roosevelt elk during root. American Midland Naturalist 118: 225-235.
25. Bradbury JW, Davies NB, 1987. Relative roles of infra- and intersexual selection. In: Bradbury JW, Andersson MB, eds. Sexual selection: testing the alternatives. Chichester: John Wiley, 143-163.
26. Breed MD, Smith SK, Gall BG. 1980. Systems of mate selection in a cockroach species with male dominance hierarchies. Animal Behaviour 28: 130-134
27. Brenowitz EA. 1989. Neighbor call amplitude influences aggressive behaviour and intermale spacing in choruses of the Pacific treefrog (Hyla regilla) Ethology 83: 69-79.
28. Burkhardt D, De la Motte I. 1987. Physiological, behavioural and morphometric evidence for the evolutive significance of stalk-eyes in Diopsidae (Diptera). Entomologia Generalis 12: 221-223.
29. Burkhardt D, De la Motte I. 1988. Big 'antlers' are favoured: female choice in stalk-eyed flies (Diptera, Insecta), field collected harems and laboratory experiments. Journal of Comparative Physiology A, Sensory, Neural, and Behavioral Physiology 162: 649-652.
30. Butcher GS, Rohwer S. 1989. The evolution of conspicuous and distinctive coloration for communication in birds. Current Ornithology 6: 51-108.
31. Byers JA, Moodie JD, Hall N. 1994. Pronghorn females choose vigorous mates. Animal Behaviour 47: 33-43
32. Capp MS, Searcy WA. 1991. An experimental study of the song type function in the bobolink (Dolichonyx oryzivoius) Behavioral Ecology and Sociobiology 28: 179-186.
33. Catchpole C, Leisler B, Dittami J. 1986. Sexual differences in the responses of captive great reed warbler (Acrocephalus arundinaceus) to variation in song structure and repertoire size. Ethology 73: 69-77
34. Clutton-Brock TH, Albon SD. 1979. The roaring of red deer and the evolution of honest advertisement. Behaviour 69: 143-160
35. Clutton-Brock TH, Guinness FE, Albon SD. 1982. Red deer, behavior and ecology of two sexes. Chicago: The University of Chicago Press
36. Cooper WEJ, Vitt LJ. 1988. Orange head coloration of the male broad-headed shink (Eumeces laticeps), a sexually selected social cue Copeia 1988(1): 1-6.
37. Cox CR, LeBoeuf BJ. 1977. Female incitation of male competition A mechanism in sexual selection. American Naturalist 111: 317-335.
38. Crews DC. 1975. Effects of different components of male courtship behaviour on environmentally induced ovaria recrudescence and mating preference in the lizard, Anolis carolinensis. Animal Behaviour 23: 349-356.
39. d'Agincourt LG, Falls JB. 1983. Variation of repertoire use in the eastern meadowlark, Sturnella magna. Canadian Journal of Zoology 61: 1086-1093.
40. Darwin C. 1871. The descent of man and selection in relation to sex. London: Murray
41. Davies NB, Halliday TR. 1978. Deep croaks and fighting assessment in toads Bufo bufo. Nature 274: 683-685.
42. Endler JA. 1983. Natural and sexual selection on color patterns in poeciliid fishes. Environmental Biology of Fishes 9: 173-190.
43. Falls JB, Krebs JR, McGregor PK. 1982. Song matching in the great tit (Parus major): the effect of similarity and familiarity. Animal Behaviour 30: 997-1009.
44. Farr JA, Travis J. 1986. Fertility advertisement by female sailfin mollies, Poecilia latipinna (Pisces: Poeciliidae). Copeia 1986: 467-472.
45. Fernald RD. 1980. Response of male ciclid fish Haplochromis burtoni reared in isolation toward models of conspecifics. Zeitschrift für Tierpsychologie 54: 85-93.
46. Fisher RA. 1915. The evolution of sexual preference. Eugenics Review 7: 184-192.
47. Fisher RA. 1930. The genetical theory of natural selection. Oxford: Clarendon Press.
48. Folstad I, Karter AJ. 1992. Parasites, bright males, and the immunocompetence handicap. American Naturalist 139: 603-622.
49. Foster MS. 1987. Delayed maturation, neoteny, and social system differences in two manakins of the genus Chiroxiphia. Evolution 41: 547-558.
50. Frank D, Hendricks R. 1973. Zur Frage der biologischen Bedeutung des Schwertfortsatzes von Xipkophorus helleri. Behaviour 44: 167-185.
51. Fugle GN, Rothstein SI. 1987. Experiments on the control of deceptive signals of status in white-crowned sparrows. Auk 104: 188-197.
52. Geist V. 1971. The mountain sheep: a study in behaviour and evolution. Chicago: Chicago University Press.
53. Grafen A. 1990. Biological signals as handicaps. Journal of Theoretical Biology 144: 517-546.
54. Graves HB, Hable CP, Jenkins TH. 1985. Sexual selection in Gallus: effects of morphology and dominance on female spatial behavior. Behavioural Processes 11: 189-197.
55. Gronell AM. 1989. Visiting behaviour by females of the sexually dichromatic damselfish Chrysiptera cyanea (Teleostei: Pomacentridae): A probable method of assessing male quality. Ethology 81: 89-122.
56. Halliday TK. 1987. Physiological constraints on sexual selection. In: Bradbury JW, Andersson MB, eds. Sexual selection: testing the alternatives. Chichester, UK: Wiley, 247-274.
57. Hamilton WD, Zuk M. 1982. Heritable true fitness and bright birds, a role for parasites. Science 218: 386-387.
58. Hansen AJ, Rohwer S. 1986. Coverable badges and resources defence in birds. Animal Behaviour 34: 69-76.
59. Hemens J. 1966. The ethological significance of the sword-tail in Xiphophorus helleri (Haekel). Behaviour 27: 290-315.
60. Hingston RWG. 1933. The meaning of animal colour and adornment. London: Edward Arnold
61. Hoffmann AA. 1988. Heritable variation for territorial success in two Drosophila melanogaster populations. Animal Behaviour 36: 1180-1189.
62. Hogstad O. 1987. It is expensive to be dominant? Auk 104: 333-336.
63. Holder K, Montgomerie R. 1993. Context and consequences of comb displays by the male rock ptarmigan. Animal Behaviour 45: 457-470.
64. Hopkins CD. 1974. Electric communication: function in the social behavior of Eingemannia inrescens. Behaviour 50: 270-305.
65. Howard RD, Minchella DJ. 1990. Parasitism and mate competition. Oikos 58: 120-123.
66. Hyatt G, Salmon M. 1978. Combat in the fiddler crab Uca pugilator and U. pugnax: A quantitative descriptive analysis. Behaviour 65: 182-211.
67. Höglund J, Eriksson M, Lindell LE. 1990. Females of the lek-breeding great snipe, Gallinago media, prefer males with white tails. Animal Behaviour 40: 23-32.
68. Iwasa Y, Pomiankowski A, Nee S. 1991. The evolution of costly mate preferences II. The "handicap" principle. Evolution 45: 1431-1442.
69. Johnstone RA, Norris K. 1993. Badges of status and the cost of aggression. Behavioural Ecology and Sociobiology 32: 127-134
70. Jones IL. 1990. Plumage variability functions for status signalling in least auklets. Animal Behaviour 39: 967-975.
71. Jones RB, Nowell NW. 1974. A comparison of the aversive and female attractant properties of urine from dominant and subordinate mice. Animal Learning and Behavior 2: 141-144.
72. Järvi T, Bakken MA. 1984. The function of the variation in the breast-stripe of the great tit (Parus major). Animal Behaviour 32: 590-596
73. Kodric-Brown A. 1977. Reproductive success and the evolution of the breeding territories in pupfish (Cyprinodon) Evolution 31: 750-766.
74. Kodric-Brown A. 1983. Determinants of male reproductive success in pupfish (Cyprinodon peconensis). Animal Behaviour 31: 128-137.
75. Kodric-Brown A. 1985. Female preference and sexual selection for male coloration in the guppy (Poecilia reticulata). Behavioral Ecology and Sociobiology 17: 199-205.
76. Kodric-Brown A. 1990. Mechanisms of sexual selection: insights from fishes. Annales Zoologici Fennici 27: 87-100.
77. Kodric-Brown A. 1993. Female choice of multiple male criteria in guppies: interacting effects of dominance, coloration and courtship. Behavioral Ecology and Sociobiology 32: 415-420.
78. Kodric-Brown A, Brown JH. 1984. Truth in advertising: the kinds of traits favored by sexual selection. American Naturalist 124: 309-323.
79. Kondrashov AS. 1988. Deleterius mutations as an evolutionary factor. III. Mating preference and some general remarks. Journal of Theoretical Biology 131: 487-496.
80. Kramer HG, Lemon RE, Morris MJ. 1985. Song switching and agonistic stimulation in the song sparrow (Melospiza melodia): five tests. Animal Behaviour 33: 135-149.
81. Krebs JB, Avery M, Cowie RJ. 1981. Effect of removal of mate on singing behaviour of great tits. Animal Behaviour 29: 635-637.
82. Ladich F. 1990. Vocalization during agonistic behaviour in Cottus gobio (Cottidae): an acoustic threat display. Ethology 84: 193-201.
83. Ladich F, Brittinger W, Kratochvil H. 1992. Significance of agonistic vocalization in the croaking gourami (Trichopsis vittatus, Teleostei). Ethology 90: 307-314.
84. Lightbody JP, Weatherhead PJ. 1987. Polygyny in the yellow-headed blackbird: female choice versus male competition. Animal Behaviour 35: 1670-1684.
85. Ligon JD, Thornhill R, Zuk M, Johnson K. 1990. Male-male competition, ornamentation and the role of testosterone in sexual selection in red jungle fowl. Animal Behaviour 40: 367-373.
86. Lubin DJ. 1986. Courtship and alternative mating tactics in a social spider. Journal of Archnology 14: 239-257.
87. Maynard Smith J, Harper DGC. 1988. The evolution of aggression: can selection generate variability? Philosophical Transactions of the Royal Society of London Series B: Biological Sciences 319: 557-570.
88. McComb KE. 1991. Female choice for high roaring rates in red deer, Cervus elaphus. Animal Behaviour 41: 79-88.
89. McDonald MV. 1989. Function of song in Scott's seaside sparrow, Ammodramus maritimus peninsulae. Animal Behaviour 38: 468-485.
90. Michod RE, Hasson O. 1990. On the evolution of reliable indicators of fitness. Ameician Naturalist 135: 788-808.
91. Milinski M, Bakker TCM. 1990. Female sticklebacks use male coloration in mate choice and hence avoid parasitized males. Nature 344: 331-333.
92. Mitani JC. 1985. Sexual selection and adult male orangutan long calls. Animal Behaviour 33: 272-283.
93. Mitani JC. 1988. Male gibbon (Hylobates agili) singing behaviour: natural history, song variations and functions. Ethology 79: 177-194
94. Møller AP. 1987a. Social control of deception among status signalling house sparrows Passer domesticus. Behavioral Ecology and Sociobiology 20: 307-311.
95. Møller AP. 1987b. Variation in badge size in male house sparrows Passer domesticus: evidence for status signalling. Animal Behaviour 35: 1637-1644.
96. Møller AP. 1988. Badge size in the house sparrow Passer domesticus. Effects of intra- and intersexual selection Behavioral Ecology and Sociobiology 22: 373-378.
97. Moore AJ. 1988. Female preferences, male social status, and sexual selection in Nauphoeta cinerea. Animal Behaviour 36: 303-305.
98. Moore AJ. 1990a. The inheritance of social dominance, mating behaviour and attractiveness to mates in male Nauphoeta cinerea. Animal Behaviour 39: 388-397.
99. Moore AJ. 1990b. The evolution of sexual dimorphism by sexual selection: The separate effects of intrasexual selection and intersexual selection. Evolution 44: 315-331.
100. Moritz RFA, Hillesheim E. 1985. Inheritance of dominance in honeybees (Apis mellifera capensis Esch.) Behavioral Ecology and Sociobiology 17: 87-89.
101. Noble GK. 1938. Sexual selection among fishes. Biological Reviews of the Cambridge Philosophical Society 13: 133-158.
102. Noble GK, Bradley HT. 1933. The mating behavior of lizards: Its bearing on the theory of sexual selection. Annals of the New York Academy of Sciences 25: 25-100.
103. Norris KJ. 1990. Female choice and die evolution of the conspicuous plumage coloration of monogamous male great tits. Behavioral Ecology and Sociobiology 26: 129-138
104. O'Donald P. 1977 Theoretical aspects of sexual selection Theoretical Population Biology 12: 298-334.
105. Owens IPF, Hartley IR. 1991 "Trojan sparrows" evolutionary consequences of dishonest invasion for the badges-of-status model. American Naturalist 138: 1187-1205.
106. Parsons J, Babtista LF. 1980. Crown color and dominance in the white-crowned sparrow. Auk 97: 807-815
107. Parzefall J. 1969. Zur vergleichenden Ethologie verschiedener Mollienesia- Arten einschliesslich einer Höhlenform von M. sphenops. Behaviour 3: 1-37.
108. Peek FW. 1972. An experimental study of the territorial function of vocal and visual display in the male red-winged blackbird (Agelaius phoeniceus) Animal Behaviour 20: 112-118.
109. Pelwijk JJ, Tinbergen N. 1937. Eine reizbiologische Analyse einiger Verhaltenweisen von G. aculeatus. Zeitschrift fur Tierpsychologie 1: 193-204.
110. Petrie M, Halliday T, Sanders C. 1991. Peahens prefer peacocks with elaborate trains. Animal Behaviour 41: 323-331
111. Pomiankowski A. 1988. The evolution of female mate preferences for male genetic quality. Oxford Surveys in Evolutionary Biology 5: 136-184.
112. Radesäter T, Halldórsdóttir H. 1993. Two male types of the common earwig: male-male competition and mating success. Ethology 95: 89-96.
113. Robertson JGM. 1986a. Female choice, male strategies and the role of vocalization in the Australian frog Uperoleia rugosa. Animal Behaviour 34: 773-784.
114. Robertson JGM. 1986b. Male territoriality, fighting and assessment of fighting ability in the Australian frog Uperoleia rugosa. Animal Behaviour 34: 763-772.
115. Rohwer S. 1975. The social significance of avian winter plumage variability. Evolution 29: 593-610.
116. Rohwer S. 1977. Status signaling in Harris sparrows: some experiments in deception. Behaviour 61: 107-129.
117. Rohwer S. 1982. The evolution of reliable and unreliable badges of fighting ability. American Zoologist 22: 531-546.
118. Rohwer S. 1985. Dyed birds achieve higher social status than controls in Harri's sparrows. Animal Behaviour 33: 1325-1331.
119. Rohwer S, Ewald PW. 1981. The cost of dominance and advantage of subordination in a badge signaling system. Evolution 35: 441-454
120. Rohwer S, Rohwer FC. 1978. Status signalling in Harri's sparrows: experimental deceptions achieved. Animal Behaviour 26: 1012-1022.
121. Rohwer S, Røskaft E. 1989. Results of dyeing male yellow-headed blackbird solid black: implications for the arbitrary identity badge hypothesis. Behavioral Ecology and Sociobiology 25: 39-48.
122. Rosenqvist G. 1990. Male mate choice and female-female competition for mates in the pipefish Nerophis ophidion. Animal Behaviour 39: 1110-1115.
123. Røskaft E, Järvi T, Bakken M, Bech C, Reinertsen RE. 1986. The relationship between social status and resting metabolic rate in great tits (Parus major) and pied flycatchers (Ficedula hypoleuca) Animal Behaviour 34: 838-842.
124. Rosser AM. 1990. A glandular neckpatch secretion and vocalization act as signals of territorial status in male puku (Kobus vardoni). African Journal of Ecology 28: 314-321.
125. Rowland WJ. 1982. The effect of male nuptial coloration on stickleback coloration: a reexamination. Behaviour 80: 118-126.
126. Ryan MJ, Keddy-Hector A. 1992. Directional patterns of female mate choice and the role of sensory biases. American Naturalist 139 S: 4-35.
127. Ryan MJ, Ryan AS. 1990. The sensory basis of sexual selection for complex calls in the Túngara frog, Physalaemus pustulosus (sexual selection for sensory exploitation). Evolution 44: 305-314.
128. Salmon M, Hyatt G, McCarthy K, Costlow JDJ. 1978. Display specificity and reproductive isolation in the fiddler crabs, Uca panecea and U. pugilator Zeitschrift für Tierpsychologie 48: 251-276.
129. Savalli U. 1994. Tail length affects territory ownership in the yellow-shouldered widowbird. Animal Behaviour 48: 105-111
130. Schmitt A, Schuster M, Barth FG. 1992. Male competition in a wandering spider (Cupiennius getazi, Ctenidae). Ethology 90: 293-306
131. Schwartz JJ. 1987. The function of the call alternation in anuran amphibians: a test of three hypotheses. Evolution 41: 461-471
132. Searcy WA. 1988. Dual intersexual and intrasexual functions of song in the red winged blackbirds. Proceedings of the XIX International Congress of Ornithology 1: 1373-1381.
133. Searcy WA, Andersson M. 1986. Sexual selection and the evolution of song. Annual Review of Ecology and Systematics 17: 507-533.
134. Searcy WA, Yasukawa K. 1990. The use of song repertoire in intersexual and intrasexual contexts by male red-winged blackbird. Behavioral Ecology and Sociobiology 27: 123-128.
135. Sekulik R. 1982. The function of howling in red howler monkeys Alouatta seniculus. Behaviour 81: 38-54.
136. Smith DG. 1972. The role of epaulets in the red-winged blackbird (Agelaius phoeniceus) mating system. Behaviour 41: 251-268.
137. Smith RL. 1959 The songs of the grasshopper sparrow. Wilson Bulletin 71: 141-152.
138. Smith SK, Breed MD. 1982. Olfactory cues in discriminations among individuals in dominance hierarchies in the cockroach, Naupoeta cinerea. Physiological Entomology 7: 337-341.
139. Stacey PB, Chiszar D. 1978. Body color pattern and aggressive behavior of male Pumpkinseed Sunfish (Lepomis gibbosus) Behaviour 64: 271-304.
140. Studd MV, Robertson RJ. 1985. Evidence for reliable badges of status in territorial yellow warblers (Dendroica petechia) Animal Behaviour 33: 1102-1113.
141. Stuchbury BJ. 1991. The adaptive significance of male subadult plumage in purple martins: plumage dyeing experiments. Behavioral Ecology and Sociobiology 29: 297-306.
142. Thornhill R. 1988. The jungle fowl hen's cackle incites male competition. Verhandlungen Deutschen Zoologisches Gesellshaft 81: 145-154.
143. Torricelli P, Lugli M, Gandolfi G. 1986. A quantitative analysis of the occurrence of visual and acoustic displays during the courtship in the freshwater gobi Padogobius martensi (Günther 1861) (Pisces, Gobiidae). Bollettino di Zoologia 53: 85-89.
144. Trail PW. 1985. Courtship disruption modifies mate choice in a lek-breeding bird. Science 227: 778-780.
145. Trail PW. 1990. Why should lek-breeders be monomorphic? Evolution 44: 1837-1852.
146. Veiga JP. 1993. Badge size, phenotypic quality, and reproductive success in the house sparrow: a study on honest advertisement Evolution 47: 1161-1170.
147. Vincent A, Ahnesjö I, Berglund A, Rosenqvist G. 1992. Pipefishes and sea-horses: Are they all sex role reversed? Trends in Ecology and Evolution 7: 237-241.
148. von Schantz T, Grahn M, Göransson G. 1994. Intersexual selection and reproductive success in the pheasant Phasianus colchicus, American Naturalist 144: 510-527
149. von Schantz T, Göranson G, Andersson G, Fröberg I, Grahn M, Helgée A, Wittzell H. 1989. Female choice selects for a viability-based male trait in pheasants. Nature 337: 166-169.
150. Watson A, Parr R. 1981. Hormone implants affecting territory size and aggressive and sexual behaviour in wed grouse. Ornis Scandinavica 12: 55-61
151. Watson PJ. 1990. Female-enhanced male competition determines the first mate and the principal sire in the spider Linyphia litigiosa (Linyphiidae). Behavioral Ecology and Sociobiology 26: 77-90.
152. Werner DI. 1978. On the biology of Tropidurus delanonis, Baur (Iguanidae). Zeitschrift für Tierpsychologie 47: 337-395.
153. West MJ, King AP. 1980. Enriching cowbird song by social deprivation. Journal of Comparative and Physiological Pychology 94: 263-270.
154. West MJ, King AP, Eastzer DH. 1981. Validating the female bioassay of cowbird song: relating differences in song potency to mating success Animal Behaviour 29: 490-501.
155. West-Eberhart MJ. 1979. Sexual selection, social competition, and evolution. Proceedings of the American Philosophical Society 123: 222-234.
156. Wickler W. 1967. Socio-sexual signals and their intra-specific imitation among primates. In: Morris D, ed. Primate Ethology. London: Weidenfeld and Nicolson, 69-147.
157. Wilcox RS, Spence JR. 1986. The mating system of the two hybridizing species of water striders (Gerridae). Behavioral Ecology and Sociobiology 19: 79-85.
158. Wiley RH. 1991. Lekking in birds and mammals: behavioral and evolutionary issues. Advances in the Study of Behavior 20: 201-291.
159. Williams GC. 1966. Adaptation and natural selection. Princeton: Princeton University Press.
160. Yasukawa K. 1981. Song repertoires in the ied winged blackbird (Agelaius phoeniceus): a test of the Beau Geste hypothesis. Animal Behaviour 29: 114-125
161. Zahavi A. 1975. Mate selection - a selection for a handicap Journal of Theoretical Biology 53: 205-214
162. Zanavi A. 1977. The cost of honesty (further remarks on the handicap principle). Journal of Theoretical Biology 67: 603-605.
163. Zahavi A. 1991. On the definition of sexual selection. Fishers model, and the evolution of waste and of signals in general. Animal Behaviour 42: 501-503
164. Zuk M, Johnson K, Thornhill R, Ligon JD. 1990a. Parasites and male ornaments in free-ranging and captive red jungle fowl. Behaviour 114: 232-248.
165. Zuk M, Johnson K, Thornhill R, Lagon JD. 1990b. Mechanisms of female choice in red jungle fowl. Evolution 44: 477-485.