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Sibling competition and cooperation in mammals: challenges, developments and prospects

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Abstract

Many vertebrates grow up in the company of same or different-age siblings, and relations among them can be expected to significantly influence individual life histories and the development of individual morphological, physiological, and behavioral phenotypes. Although studies in birds still dominate and have stimulated most theoretical considerations, the increasing number of mammalian studies promises to broaden our understanding of this complex field by enabling interesting comparisons with the rather different bird system. It therefore seems timely to bring together recent studies of sibling relations in mammals and to demonstrate what these can offer in the way of fresh insights. In this brief review, intended to accompany a series of papers on a diverse range of mammals, we outline the current state of sibling research in mammals, comparing it to the better studied birds. Most obviously, in mammals, mother and young are in much closer contact during early life than in birds, and siblings can influence each other’s development as well as the mother’s physiology while still in utero. During nursing, mammalian young also encounter a very different feeding situation to bird siblings. These contrasts should help stimulate further debate, as well as provide further opportunities to study the relative importance of maternal versus sibling effects on individual development. Finally, we discuss the need to balance studies of sibling competition and conflict with a consideration of the benefits accruing to individuals from sibling presence and the need for long-term studies of the influence of early sibling relations on individual development and life histories.

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References

  • Adamski FM, Demmer J (2000) Immunological protection of the vulnerable marsupial pouch young: two periods of immune transfer during lactation in Trichosurus vulpecula (brushtail possum). Dev Comp Immunol 24:491–502

    Article  PubMed  CAS  Google Scholar 

  • Alberts JR (1978) Huddling by rat pups: group behavioral mechanisms of temperature regulation and energy conservation. J Comp Physiol Psychol 92:231–245

    Article  PubMed  CAS  Google Scholar 

  • Alberts JR, Gubernick DJ (1990) Functional organization of dyadic and tryadic parent–offspring systems. In: Krasnegor NA, Bridges RS (eds) Mammalian parenting. Oxford University Press, New York, pp 416–440

    Google Scholar 

  • Algers B (1993) Nursing in pigs: communication of needs and distributing resources. J Anim Sci 71:2826–2831

    PubMed  CAS  Google Scholar 

  • Banulis A, Schlaff W (1999) Lactational amenorrhea. In: Knobil E, Neill JD (eds) Encyclopedia of reproduction Vol 2. Academic, New York, pp 949–953

    Google Scholar 

  • Bateson P, Barker D, Clutton-Brock T, Deh D, D’Udine B, Foley RA, Gluckman P, Godfrey K, Kirkwood T, Mirazón Lahr M, McNamara J, Metcalfe NB, Monaghan P, Spencer HG, Sultan SE (2004) Developmental plasticity and human health. Nature 430:419–421

    Article  PubMed  CAS  Google Scholar 

  • Bautista A, Drummond H, Martínez-Gómez M, Hudson R (2003) Thermal benefit of sibling presence in the newborn rabbit. Dev Psychobiol 43:208–215

    Article  PubMed  CAS  Google Scholar 

  • Bautista A, Mendoza-Degante M, Coureaud G, Martínez-Gómez M, Hudson R (2005) Scramble competition in newborn domestic rabbits for an unusually restricted milk supply. Anim Behav 70:1011–1021

    Article  Google Scholar 

  • Bautista A, García-Torres E, Martínez-Gómez M, Hudson R (2007) Do newborn domestic rabbits Oryctolagus cuniculus compete for thermally advantageous positions in the litter huddle? Behav Ecol Sociobiol DOI 10.1007/s00265-007-0420-4

  • Blas J, Baos R, Bortolotti GR, Marchant T, Hiraldo F (2005) A multi-tier approach to identifying environmental stress in altricial nestling birds. Funct Ecol 19:315–322

    Article  Google Scholar 

  • Blumberg MS, Sokoloff G (1998) Thermoregulatory competence and behavioural expression in the young of altricial species-revisited. Dev Psychobiol 33:107–123

    Article  PubMed  CAS  Google Scholar 

  • Borgerhoff-Mulder M (1998) Brothers and sisters. How sibling interactions affect optimal parental allocations. Human Nat 9:119–162

    Article  Google Scholar 

  • Brilot BO, Johnstone RA (2003) The limits to cost-free signalling of need between relatives. Proc R Soc Lond B 270:1055–1060

    Article  Google Scholar 

  • Brown LH, Gargett V, Steyn P (1977) Breeding success in some African eagles related to theories about sibling aggression and its effects. Ostrich 48:65–71

    Google Scholar 

  • Cameron EZ (1998) Is suckling behaviour a useful predictor of milk intake? A review. Anim Behav 56:521–532

    Article  PubMed  Google Scholar 

  • Caro TM, Collins DA (1987) Male cheetah social organization and territoriality. Ethology 74:52–64

    Article  Google Scholar 

  • Cheney DL, Seyfarth RM (1983) Nonrandom dispersal in free-ranging vervet monkeys: social and genetic consequences. Am Nat 122:392–412

    Article  Google Scholar 

  • Clutton-Brock TH (1991) The evolution of parental care. Princeton University Press, Princeton, NJ

    Google Scholar 

  • Clutton-Brock TH, Guiness FE, Albon SD (1983) The cost of reproduction to red deer hinds. J Anim Ecol 52:367–383

    Article  Google Scholar 

  • Collier RJ (1999) Lactation, nonhuman. In: Knobil E, Neill JD (eds) Encyclopedia of reproduction Vol 2. Academic, New York, pp 973–979

    Google Scholar 

  • Colmenares F (1992) Clans and harems in a colony of hamadryas and hybrid baboons-male kinship, familiarity and the formation of brother teams. Behaviour 121:61–94

    Article  Google Scholar 

  • Conley D (2004) The pecking order: which siblings succeed and why. Pantheon Books, New York

    Google Scholar 

  • Cooper J (1980) Fatal sibling aggression in pelicans-a review. Ostrich 51:183–186

    Google Scholar 

  • Dahle B, Swenson JE (2003) Factors influencing length of maternal care in brown bears (Ursus arctos) and its effect on offspring. Behav Ecol Sociobiol 54:352–358

    Article  Google Scholar 

  • Dall SRX, Boyd IL (2002) Provisioning under the risk of starvation. Evol Ecol Res 4:883–896

    Google Scholar 

  • Dall SRX, Boyd IL (2004) Evolution of mammals: lactation helps mothers to cope with unreliable food supplies. Proc R Soc Lond B 271:2049–2057

    Article  Google Scholar 

  • Drake A, Fraser D, Weary DM (2007) Parent–offspring resource allocation in domestic pigs. Behav Ecol Sociobiol DOI 10.1007/s00265-007-0418-y

  • Drummond H, Vázquez E, Sánchez-Colón S, Martínez-Gómez M, Hudson R (2000) Competition for milk in the domestic rabbit: survivors benefit from littermate deaths. Ethology 106:511–526

    Article  Google Scholar 

  • Drummond H (2001) A reevaluation of the role of food in broodmate aggression. Anim Behav 61:517–526

    Article  Google Scholar 

  • Drummond H, Torres R, Krishnan VV (2003) Buffered development: resilience after aggressive subordination in infancy. Am Nat 161:794–807

    Article  PubMed  Google Scholar 

  • Drummond H (2006) Dominance in vertebrate broods and litters. Q Rev Biol 81:3–32

    Article  PubMed  Google Scholar 

  • Dugatkin LA (2002) Animal cooperation among unrelated individuals. Naturwissenschaften 89:533–541

    PubMed  CAS  Google Scholar 

  • Eisen EJ, Saxton AM (1984) Effects of concurrent lactation and postpartum mating on reproductive performance in mice selected for large litter size. J Anim Sci 59:1224–1238

    PubMed  CAS  Google Scholar 

  • Ewer RF (1959) Suckling behaviour in kittens. Behaviour 15:146–162

    Article  Google Scholar 

  • Fey K, Trillmich F (2007) Sibling competition in guinea pigs (Cavia aperea f. porcellus): scrambling for mother’s teats is stressful. Behav Ecol Sociobiol DOI 10.1007/s00265-007-0419-x

  • Forbes LS (1993) Avian brood reduction and parent–offspring “conflict”. Am Nat 142:82–117

    Article  PubMed  CAS  Google Scholar 

  • Forbes LS (2005) A natural history of families. Princeton University Press, Princeton, NJ

    Google Scholar 

  • Fraser D, Jones RM (1975) The “teat order” of suckling pigs. I. Relation to birth weight and subsequent growth. J Agric Sci 84:387–391

    Article  Google Scholar 

  • Fraser D (1980) A review of the behavioural mechanism of milk ejection of the domestic pig. Appl Anim Ethol 6:24–255

    Google Scholar 

  • Fuchs S (1982) Optimality of parental investment: the influence of nursing on reproductive success of mother and female young house mice. Behav Ecol Sociobiol 10:39–51

    Article  Google Scholar 

  • Gargett (1978) Sibling aggression in the black eagle in the Matopos, Rhodesia. Ostrich 49:57–63

    Google Scholar 

  • Gilbert DA, Packer C, Pusey AE, Stephens JC, O’Brien SJ (1991) Analytical DNA fingerprinting in lions: Parentage, genetic diversity, and kinship. J Hered 82:378–386

    PubMed  CAS  Google Scholar 

  • Godfray HCJ (1995) Evolutionary theory of parent–offspring conflict. Nature 376:133–138

    Article  PubMed  CAS  Google Scholar 

  • Gomendio M (1991) Parent/offspring conflict and maternal investment in rhesus macaques. Anim Behav 42:993–1005

    Article  Google Scholar 

  • Gomper ME, Wayne RK (1996) Genetic relatedness among individuals within carnivore societies. In: Gittleman JL (ed) Carnivore behavior, ecology, and evolution. Cornell University Press, Ithaca, NY, pp 429–452

    Google Scholar 

  • Groothuis TGG, Müller W, von Engelhardt N, Carer C, Eising C (2005) Maternal hormones as a tool to adjust offspring phenotype in avian species. Neurosci Biobehav Rev 29:329–352

    Article  PubMed  CAS  Google Scholar 

  • Haig D (1993) Genetic conflicts in human pregnancy. Quarterly Rev Biol 68: 495–531

    Article  CAS  Google Scholar 

  • Harper AB (1986) The evolution of begging: sibling competition and parent–offspring conflict. Am Nat 128:99–114

    Article  Google Scholar 

  • Hausfater G, Hrdy SB (1984) Infanticide. Comparative and evolutionary perspectives. Aldine Publishing, New York

    Google Scholar 

  • Hill RW, Beaver DL (1982) Inertial thermostability and thermoregulation in broods of redwing blackbirds. Physiol Zool 55:250–266

    Google Scholar 

  • Hill RW (1992) The altricial/precocial contrast in the thermal relations and energetics of small mammals. In: Tomasi T, Horton T (eds) Mammalian energetics: interdisciplinary views of metabolism and reproduction. Cornell University Press, Ithaca, NY, pp 122–159

    Google Scholar 

  • Hoeck HN (1977) “Teat order” in Hyrax (Procavia johnstoni and Heterohyrax brucei). Z Säugetierk 42:112–115

    Google Scholar 

  • Hofer H, East ML (2007) Siblicide in Serengeti spotted hyenas: a long-term study of maternal input and cub survival. Behav Ecol Sociobiol DOI 10.1007/s00265-007-0421-3

  • Hrdy SB (1999) Mother nature. Balantine Books, New York

    Google Scholar 

  • Hull D (1973) Thermoregulation in young mammals. In: Whittow GC (ed) Comparative physiology of temperature regulation: special aspects of thermoregulation. Academic, New York, pp 167–200

    Google Scholar 

  • Hussel DJT (1988) Supply and demand in tree swallow broods: a model of parent–offspring food-provisioning interactions in birds. Am Nat 131:175–202

    Article  Google Scholar 

  • Jensen P, Gustafsson M, Augustsson H (1998) Teat massage after milk ingestion in domestic piglets: an example of honest begging? Anim Behav 55:779–786

    Article  PubMed  Google Scholar 

  • Johnstone RA (1996) Begging signals and parent–offspring conflict: do parents always win? Proc R Soc Lond B 263:1677–1681

    Article  Google Scholar 

  • Kaiser S, Sachser N (1998) The social environment during pregnancy and lactation affects the female offsprings’ endocrine status and behaviour in guinea pigs. Physiol Behav 63:361–366

    Article  PubMed  CAS  Google Scholar 

  • Kaiser S, Sachser N (2001) Social stress during pregnancy and lactation affects in guinea pigs the male offsprings’ endocrine status and infantilizes their behaviour. Psychoneuroendocrinology 26:503–519

    Article  PubMed  CAS  Google Scholar 

  • Kalas S (1977) Ontogenie und Funktion der Rangordnung innerhalb einer Geschwisterschar von Graugänsen (Anser anser L.). Z Tierpsychol 45:174–198

    Article  PubMed  CAS  Google Scholar 

  • Kilner RM, Noble DG, Davies NB (1999) Signals of need in parent–offspring communication and their exploitation by the common cuckoo. Nature 397:667–672

    Article  Google Scholar 

  • Kilner RM (2003) How selfish is a cowbird nestling. Anim Behav 66:569–576

    Article  Google Scholar 

  • Kölliker M (2005) Ontogeny in the family. Behav Genet 35:7–18

    Article  PubMed  Google Scholar 

  • Krasnegor NA, Bridges RS (1990) Mammalian parenting: biochemical, neurobiological and behavioural determinants. Oxford University Press, New York

    Google Scholar 

  • Laurien-Kehnen C, Trillmich F (2003) Lactation performance of guinea pigs (Cavia porcellus) does not respond to experimental manipulation of pup demands. Behav Ecol Sociobiol 53:145–152

    Google Scholar 

  • Leippert D, Goymann W, Hofer H (2000) Between-litter siblicide in captive Indian false vampire bats (Megaderma lyra). J Zool Lond 251:537–540

    Article  Google Scholar 

  • Lougheed LW, Anderson DJ (1999) Parent blue-footed boobies suppress siblicidal behavior of offspring. Behav Ecol Sociobiol 45:11–18

    Article  Google Scholar 

  • Macnair MR, Parker GA (1979) Models of parent offspring conflict. II. Intra-brood conflict. Anim Behav 27:1202–1209

    Article  Google Scholar 

  • Mangle M, Munch SB (2005) A life-history perspective on short- and long-term consequences of compensatory growth. Am Nat 166:E155–E176

    Article  Google Scholar 

  • Martínez-Gómez M, Juárez M, Distel H, Hudson R (2004) Overlapping litters and reproductive performance in the domestic rabbit. Physiol Behav 82:629–636

    Article  PubMed  CAS  Google Scholar 

  • Maynard-Smith J, Harper D (2003) Animal signals. Oxford University Press, Oxford

    Google Scholar 

  • Mena F, Clapp C, Martínez de Escalera G (1990) Age-related stimulatory and inhibitory effects of suckling regulated lactation in rabbits. Physiol Behav 48:307–310

    Article  PubMed  CAS  Google Scholar 

  • Metcalfe N, Monaghan P (2001) Compensation for a bad start: grow now, pay later? Trends Ecol Evol 16:254–260

    Article  PubMed  Google Scholar 

  • Mock DW (1985) Siblicidal brood reduction: the prey–size hypothesis. Am Nat 125:327–343

    Article  Google Scholar 

  • Mock DW, Parker GA (1986) Advantages and disadvantages of ardeid brood reduction. Evolution 40:459–470

    Article  Google Scholar 

  • Mock DW, Forbes LS (1992) Parent–offspring conflict: a case of arrested development. Trends Ecol Evol 7:409–413

    Article  CAS  PubMed  Google Scholar 

  • Mock DW, Forbes LS (1995) The evolution of parental optimism. Trends Ecol Evol 10:130–134

    Article  CAS  PubMed  Google Scholar 

  • Mock DW, Parker GA (1997) The evolution of sibling rivalry. Oxford University Press, Oxford

    Google Scholar 

  • Mock DW, Parker GA, Schwagmeyer PL (1998) Game theory, sibling rivalry, and parent–offspring conflict. In: Dugatkin LA, Reeve HK (eds) Game theory and animal behavior. Oxford University Press, New York, pp 146–167

    Google Scholar 

  • Mock DW (2004) More than kin and less than kind. Belknap, Cambridge, Mas

    Google Scholar 

  • Mousseau TA, Fox CW (1998) Maternal effects as adaptations. Oxford University Press, New York

    Google Scholar 

  • Naguib M, Riebel K, Marzal A, Gil D (2004) Nestling immunocompetence and testosterone covary with brood size in a songbird. Proc R Soc Lond B 271:833–838

    Article  Google Scholar 

  • Naidenko SV, Antonevich AL, Erofeeva MN, Neubauer K, Jewgenow K (2004) Sibling aggression in lynx: traits and consequences. Adv Ethol Suppl 38:68

    Google Scholar 

  • Neville MC (1999) Lactation, human. In: Knobil E, Neill JD (eds) Encyclopedia of reproduction Vol 2. Academic, New York, pp 963–972

    Google Scholar 

  • O’Connor RJ (1978) Brood reduction in birds: selection for infanticide, fratricide and suicide? Anim Behav 26:79–96

    Article  Google Scholar 

  • O’Gara BW (1969) Unique aspects of reproduction in the female pronghorn (Antilocapra americana Ord) Am J Anat 125:217–232

    Article  PubMed  CAS  Google Scholar 

  • Parker GA, Macnair MR (1979) Models of parent–offspring conflict. IV. Suppression: evolutionary retaliation by the parents. Anim Behav 27:1210–1235

    Article  Google Scholar 

  • Parker GA, Royle NJ, Hartley IR (2002) Intrafamilial conflict and parental investment: a synthesis. Phil Trans R Soc Lond B 357:295–307

    Article  Google Scholar 

  • Peri BA, Rothberg RM (1986) Transmission of maternal antibody prenatally and from milk into serum of neonatal rabbits. Immunology 57:49–53

    PubMed  CAS  Google Scholar 

  • Polge C, Rowson LE, Chang MC (1966) The effect of reducing the number of embryos during early stages of gestation on the maintenance of pregnancy in the pig. J Reprod Fertil 12:395–397

    Article  PubMed  CAS  Google Scholar 

  • Procter DL (1975) The problem of chick loss in the South Polar skua Catharacta maccormicki. Ibis 117:452–459

    Article  Google Scholar 

  • Rheingold HL (1963) Maternal behavior in mammals. Wiley, New York

    Google Scholar 

  • Ricklefs RE, Wikelski M (2002) The physiology/life-history nexus. Trends Ecol Evol 17:462–468

    Article  Google Scholar 

  • Roulin A, Kölliker M, Richner H (2000) Barn owl (Tyto alba) siblings vocally negotiate resources. Proc R Soc Lond 267:459–463

    Article  CAS  Google Scholar 

  • Royle NJ, Hartley IR, Parker GA (2004) Parental investment and family dynamics: interactions between theory and empirical tests. Popul Ecol 46:231–241

    Article  Google Scholar 

  • Safriel UN (1981) Social hierarchy among siblings in broods of the oystercatcher Haematopus ostralegus. Behav Ecol Sociobiol 9:59–63

    Article  Google Scholar 

  • Schwabl H (1993) Yolk is a source of maternal testosterone for developing birds. Proc Natl Acad Sci USA 90:11446–11450

    Article  PubMed  CAS  Google Scholar 

  • Simpson MJA, Simpson AE, Hooley J, Zunz M (1981) Infant-related influences on birth intervals in rhesus monkeys. Nature 290: 49–51

    Article  PubMed  CAS  Google Scholar 

  • Stern JM (1996) Somatosensation and maternal care in Norway rats. In: Rosenblatt JS, Snowdon CT (eds) Parental care: evolution, mechanisms and adaptive significance. Advances in the study of behavior Vol 25. Academic, New York, pp 243–294

    Google Scholar 

  • Stevenson JS (1999) Lactational anestrus. In: Knobil E, Neill JD (eds) Encyclopedia of reproduction Vol 2. Academic, New York, pp 954–963

    Google Scholar 

  • Stinson CH (1979) On the selective advantage of fratricide in raptors. Evolution 33:1219–1225

    Article  Google Scholar 

  • Stockley P, Parker GA (2002) Life history consequences for mammalian sibling rivalry. Proc Nat Acad Sci 99:12932–12937

    Article  PubMed  CAS  Google Scholar 

  • Sulloway JF (1996) Born to rebel. Pantheon Books, New York

    Google Scholar 

  • Sulloway JF (2001) Birth order, sibling competition, and human behavior. In: Harmon RH (ed) Conceptual challenges in evolutionary psychology: innovative research strategies. Kluwer, Boston, pp 39–83

    Google Scholar 

  • Tait DEN (1980) Abandonement as a reproductive tactic—the example of grizzly bears. Am Nat 115:800–808

    Article  Google Scholar 

  • Trillmich F (1986) Maternal investment and sex-allocation in the Galápagos fur seal, Arctocephalus galapagoensis. Behav Ecol Sociobiol 19:157–164

    Google Scholar 

  • Trillmich F (1990) The behavioral ecology of maternal effort in fur seals and sea lions. Behaviour 114:1–20

    Article  Google Scholar 

  • Trillmich F, Wolf JBW (2007) Parent–offspring and sibling conflict in Galápagos fur seals and sea lions. Behav Ecol Sociobiol DOI 10.1007/s00265-007-0423-1

  • Trivers R (1974) Parent–offspring conflict. Am Zool 14:249–264

    Google Scholar 

  • Tyndale-Biscoe H, Renfree M (1987) Reproductive physiology of marsupials. Cambridge University Press, Cambridge

    Book  Google Scholar 

  • vom Saal FS (1989) Sexual differentiation in litter-bearing mammals: influence of sex on adjacent fetuses in utero. J Anim Sci 67:1824–1840

    Google Scholar 

  • Webb DR (1993) Maternal-nestling contact geometry and heat transfer in an altricial bird. J Therm Biol 18:117–124

    Article  Google Scholar 

  • White P (2007) Maternal response to neonatal sibling conflict in the spotted hyena, Crocuta crocuta. Behav Ecol Sociobiol DOI 10.1007/s00265-007-0422-2

  • Wright J, Leonard ML (2002) The evolution of begging: competition, cooperation and communication. Springer, Berlin Heidelberg New York

    Google Scholar 

  • Zielinski WJ, vom Saal FS, Vandenbergh JG (1992) The effect of intrauterine position on the survival, reproduction and home range size of female house mice (Mus musculus). Behav Ecol Sociobiol 30:185–191

    Article  Google Scholar 

  • Zhou L, Yoshimura Y, Huang Y, Suzuki R, Yokoyama M, Okabe M, Shimamura M (2000) Two independent pathways of maternal cell transmission to offspring through placenta during pregnancy and by breast feeding after birth. Immunology 101:570–581

    Article  PubMed  CAS  Google Scholar 

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Acknowledgements

We would like to thank Tatiana Czeschlick who enthusiastically took up the idea of producing this special issue and helped it along from the time of its conception, through gestation and to the final version. A. Schulte-Hostedde put a tremendous amount of work into editing this special issue and helped in many ways to see the manuscripts through the sometimes erratic process in a friendly and efficient manner. Robyn Hudson and Fritz Trillmich contributed equally and have been arranged in alphabetical order.

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Communicated by A. Schulte-Hostedde

This contribution represents the introduction to the special issue “Sibling competition and cooperation in mammals”.

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Hudson, R., Trillmich, F. Sibling competition and cooperation in mammals: challenges, developments and prospects. Behav Ecol Sociobiol 62, 299–307 (2008). https://doi.org/10.1007/s00265-007-0417-z

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