Endocrine and Energetic Mediation of Play Behavior in Free-Living Belding's Ground Squirrels

Abbott, 1984, Differentiation of sexual behavior in female marmoset monkeys: Effects of neonatal testosterone or a male co-twin, Prog. Brain Res., 61, 349, 10.1016/S0079-6123(08)64446-5 Altmann, 1974, Observational study of behavior: Sampling methods, Behaviour, 48, 227, 10.1163/156853974X00534 Armitage, 1974, Demography of yellow-bellied marmot populations, Ecology, 55, 1233, 10.2307/1935452 Arnold, 1980, Sexual differences in the brain, Am. Scientist, 68, 165 Arnold, 1985, Organizational and activational effects of sex steroids on vertebrate brain and behavior: A re-analysis, Horm. Behav., 19, 469, 10.1016/0018-506X(85)90042-X Bachman, 1993, The effect of body condition on the trade-off between vigilance and foraging in Belding's ground squirrels, Anim. Behav., 46, 233, 10.1006/anbe.1993.1185 Baldwin, 1976, Effects of food ecology on social play: A laboratory simulation, Z. Tierpshychol., 40, 1, 10.1111/j.1439-0310.1976.tb00922.x Barber, 1991, Play and energy regulation in mammals, Q. Rev. Biol., 66, 129, 10.1086/417142 Barnes, 1984, Influence of energy stores on activation of reproductive function in male golden-mantled ground squirrels, J. Comp. Physiol., B154, 421, 10.1007/BF00684449 Barrett, 1992, Environmental influences on play behaviour in immature gelada baboons, Anim. Behav., 44, 111, 10.1016/S0003-3472(05)80760-2 Beatty, 1992, Gonadal hormones and sex differences in nonreproductive behaviors, 85, 10.1007/978-1-4899-2453-7_3 Beatty, 1981, Temporal boundary of the sensitive period for hormonal organization of social play in juvenile rats, Physiol. Behav., 26, 241, 10.1016/0031-9384(81)90017-2 Bekoff, 1976, Animal play: Problems and perspectives Bekoff, 1981, A critical reanalysis of the ontogeny and phylogeny of mammalian social and locomotor play: An ethological hornet's nest, 296 Bekoff, 1985, The development of behavior from evolutionary and ecological perspectives in mammals and birds, Evol. Biol., 19, 215, 10.1007/978-1-4615-6980-0_5 Bronson, 1989 Byers, 1995, Refining the motor training hypothesis for the evolution of play, Am. Nat., 146, 25, 10.1086/285785 Byrne, 1995, Development of activity patterns, social interactions, and exploratory behavior in infant tufted capuchins (Cebus apella), Am. J. Priamtol., 35, 255, 10.1002/ajp.1350350402 Caro, 1995, Short-term costs and correlates of play in cheetahs, Anim. Behav., 49, 333, 10.1006/anbe.1995.9999 Darwin, 1871 Fagen, 1981 Ficken, 1977, Avian play, The Auk, 94, 573, 10.1093/auk/94.3.573 Goy, 1978, Development of play and mounting behavior in female rhesus virilized prenatally with esters of testosterone or dihydrotestosterone, 449 Goy, 1972, The effects of testosterone proprionate administered before birth on the development of behavior in genetic female rhesus monkeys, 193 Greenwood, 1980, Mating systems, philopatry and dispersal in birds and mammals, Anim. Behav., 28, 1140, 10.1016/S0003-3472(80)80103-5 Haas, 1993, Social play among juvenile bighorn sheep: Structure, development, and relationship to adult behavior, Ethology, 93, 105, 10.1111/j.1439-0310.1993.tb00982.x Hole, 1988, Temporal features of social play in the laboratory rat, Ethology, 78, 1, 10.1111/j.1439-0310.1988.tb00217.x Holekamp, 1983 Holekamp, 1984, Natal dispersal in Belding's ground squirrels (Spermophilus beldingi), Behav. Ecol. Sociobiol., 16, 21, 10.1007/BF00293100 Holekamp, 1984, Dispersal in ground-dwelling sciurids, 297 Holekamp, 1998, Behavioral development in the spotted hyena, Bioscience, 48, 997, 10.2307/1313456 Holekamp, 1984, Hormonal influences on natal dispersal in free-living Belding's ground squirrels (Spermophilus beldingi), Horm. Behav., 18, 465, 10.1016/0018-506X(84)90031-X Holmes, 1994, The development of littermate preferences in juvenile Belding's ground squirrels, Anim. Behav., 48, 1071, 10.1006/anbe.1994.1341 Holmes, 1995, The ontogeny of littermate preferences in juvenile golden-mantled ground squirrels: Effects of rearing and relatedness, Anim. Behav., 50, 309, 10.1006/anbe.1995.0247 Hrdy, 1979, Infanticide among animals: A review, classification, and examination of the implications for the reproductive strategies of females, Ethol. Sociobiol., 1, 12, 10.1016/0162-3095(79)90004-9 Jamieson, 1987, Sex differences in the play behavior of yearling yellow-bellied marmots, Ethology, 74, 237, 10.1111/j.1439-0310.1987.tb00936.x Jenkins, 1984, Spermophilus beldingi. Mamm. Species, 221, 1, 10.2307/3503911 Kenagy, 1980, Interrelation of endogenous annual rhythms of reproduction and hibernation in the golden-mantled ground squirrel, J. Comp. Physiol., 135, 333, 10.1007/BF00657649 Kilgore, 1972 Martin, 1984, The time and energy costs of play behaviour in the cat, Z. Tierpsychol., 64, 298, 10.1111/j.1439-0310.1984.tb00365.x Martin, 1985, The ontogeny of locomotor play behaviour in the domestic cat, Anim. Behav., 33, 502, 10.1016/S0003-3472(85)80073-7 Martin, 1985, On the functions of play and its role in behavioral development, Adv. Study Behav., 15, 59, 10.1016/S0065-3454(08)60487-8 Meaney, 1988, The sexual differentiation of social play, Trends in Neuroscience, 11, 54, 10.1016/0166-2236(88)90164-6 Meaney, 1986, Testosterone implants into the amygdala during the neonatal period masculinize the social play of juvenile female rats, Brain Res., 398, 324, 10.1016/0006-8993(86)91492-7 Meaney, 1981, Neonatal androgens influence the social play of prepubescent rats, Horm. Behav., 15, 197, 10.1016/0018-506X(81)90028-3 Meaney, 1985, Sex differences in social play: The socialization of sex roles, Adv. Study Behav., 15, 1, 10.1016/S0065-3454(08)60486-6 McEwen, 1981, Neural gonadal steroid actions, Science, 211, 1301, 10.1126/science.6259728 Meder, 1990, Sex differences in the behaviour of immature captive lowland gorillas, Primates, 31, 51, 10.1007/BF02381029 Meyer, 1996, Ontogeny of dominance in free-living red foxes, Ethology, 102, 1008, 10.1111/j.1439-0310.1996.tb01178.x Morton, 1975, Reproductive cycle of the Belding ground squirrel (Spermophilus beldingi beldingi), Great Basin Nat., 35, 427 Morton, 1974, Body size, body composition, and behavior of juvenile Belding ground squirrels, Great Basin Nat., 34, 121 Nunes, 1997 Nunes, 1996, Mass and fat influence the timing of natal dispersal in Belding's ground squirrels, J. Mammal., 77, 807, 10.2307/1382686 Nunes, 1997, Why do female Belding's ground squirrels disperse away from food resources, Behav. Ecol. Sociobiol., 40, 199, 10.1007/s002650050333 Nunes, 1998, Body fat and time of year interact to mediate dispersal behaviour in ground squirrels, Anim. Behav., 55, 605, 10.1006/anbe.1997.0645 Nunes, 1999, Energetic and endocrine mediation of natal dispersal behavior in Belding's ground squirrels, Horm. Behav., 35, 113, 10.1006/hbeh.1998.1504 Orgeur, 1995, Sexual play behavior in lambs androgenized in utero, Physiol. Behav., 57, 185, 10.1016/0031-9384(94)00227-V Ortega, 1987, Avian play: Comparative evolutionary and developmental trends, The Auk, 104, 338, 10.1093/auk/104.2.338 Pederson, 1990, Sex differences in the play behavior of immature spotted hyenas, Crocuta crocuta, Horm. Behav., 24, 403, 10.1016/0018-506X(90)90018-S Pellis, 1988, Agnostic versus amicable targets of attack and defense: Consequences for the origin, function, and descriptive classification of play-fighting, Aggr. Behav., 14, 85, 10.1002/1098-2337(1988)14:2<85::AID-AB2480140203>3.0.CO;2-5 Pellis, 1997, Multiple differences in the play fighting of male and female rats: Implications for the causes and functions of play, Neurosci. Biobehav. Rev., 21, 105, 10.1016/0149-7634(95)00060-7 Phoenix, 1959, Organizing action of prenatally administered testosterone proprionate on the tissues mediating mating behavior in the female guinea pig, Endocrinology, 65, 369, 10.1210/endo-65-3-369 Pierce, 1991, Targets and tactics of agonistic precopulatory behavior in montane and prairie voles: Their relationship to juvenile play fighting, Aggr. Behav., 17, 337, 10.1002/1098-2337(1991)17:6<337::AID-AB2480170605>3.0.CO;2-F Rutberg, 1993, Proximate causes of natal dispersal in feral ponies: Some sex differences, Anim. Behav., 46, 969, 10.1006/anbe.1993.1278 Scott, 1974, Critical periods in the organization of systems, Dev. Psychobiol., 7, 489, 10.1002/dev.420070602 Sherman, 1976 Sherman, 1984, Demography of Belding's ground squirrels, Ecology, 65, 1617, 10.2307/1939140 Sivy, 1992, The energetic costs of rough-and-tumble play in the juvenile rat, Dev. Psychobiol., 25, 137, 10.1002/dev.420250206 Smith, 1996, Dominance and age-related changes in the play fighting of intact and post-weaning castrated male rats (Rattus norvegicus), Aggr. Behav., 22, 215, 10.1002/(SICI)1098-2337(1996)22:3<215::AID-AB6>3.0.CO;2-L Smith, 1982, Does play matter? Functional and evolutionary aspects of animal and human play, Behav. Brain Sci., 5, 138, 10.1017/S0140525X0001092X Sokal, 1981 Svendsen, 1973 Thompson, 1996, Play-partner preferences and the function of social play in infant sable antelope, Hippotragus niger, Anim. Behav., 52, 1143, 10.1006/anbe.1996.0261 Thor, 1986, Social play soliciting by male and female juvenile rats: Effects of neonatal androgenization and sex of cagemates, Behav. Neurosci., 2, 275, 10.1037/0735-7044.100.2.275 Torran-Allerand, 1978, Gonadal hormones and brain development: Cellular aspects of sexual differentiation, Am. Zool., 18, 553, 10.1093/icb/18.3.553 Trombulak, 1991, Maternal influence on juvenile growth rates in Belding's ground squirrels (Spermophilus beldingi), Can. J. Zool., 69, 2140, 10.1139/z91-299 Wade, 1992, Metabolic fuels and reproductive function in female mammals, Neurosci. Biobehav. Rev., 16, 235, 10.1016/S0149-7634(05)80183-6 Wade, 1996, Control of fertility by metabolic cues, Am. J. Physiol., 270, E1 Wallen, 1995, Effects of neonatal testicular suppression with a GnRH antagonist on social behavior in group-living rhesus monkeys, Horm. Behav., 29, 322, 10.1006/hbeh.1995.1023 Ward, 1991, Prenatal stress feminizes juvenile play patterns in male rats, Physiol. Behav., 50, 601, 10.1016/0031-9384(91)90552-Y Watson, 1993, The play associations of red-necked wallabies (Macropus furogriseus banksianus) and relation to other social contexts, Ethology, 94, 1, 10.1111/j.1439-0310.1993.tb00543.x Watt, 1975 Wilson, 1992, Factors determining the onset of puberty, 275, 10.1007/978-1-4899-2453-7_9 Wolff, 1993, Why are female small mammals territorial, Oikos, 68, 364, 10.2307/3544853 Zucker, 1992, Developmental and comparative aspects of social play of mantled howling monkeys in Costa Rica, Behaviour, 123, 144, 10.1163/156853992X00165 Zucker, 1982, Circannual body weight rhythms of ground squirrels: Role of gonadal hormones, Am. J. Physiol., 243, R546