Literaturverzeichnis

[1]   R. J. Andrew. The displays of the primates. In Evolutionary and genetic biology of primates, vol. II, J. Buettner–Janusch (Hrsg.), pages 227–309. Academic Press, New York, London, 1964.

[2]   W. Angst. Das Ausdrucksverhalten des Javanermakaken Macaca fascicularis Raffles 1821. Z. Tierpsychol., Beiheft 15:1–90, 1974.

[3]   J. F. Baer, R. E. Weller, and I. Kakoma. Aotus: The owl monkey. Academic Press, 1994.

[4]   J. D. Baldwin. The social behavior of adult male squirrel monkeys in a seminatural environment. Folia primatol., 9:281–314, 1968.

[5]   J. D. Baldwin. The ontogeny of social behaviour of squirrel monkeys (Saimiri sciureus) in a seminatural environment. Folia primatol., 11:35–79, 1969.

[6]   J. D. Baldwin. The social organization of a semifree-ranging troop of squirrel monkeys (Saimiri sciureus). Folia primatol., 14:23–50, 1971.

[7]   J. D. Baldwin and J. Baldwin. The ecology and behavior of squirrel monkeys (Saimiri oerstedi) in a natural forest in Western Panama. Folia primatol., 18:161–184, 1972.

[8]   J. D. Baldwin and J. I. Baldwin. The role of play in social organization: Comparative observations on squirrel monkeys (Saimiri). Primates, 14:369–381, 1973.

[9]   J. D. Baldwin and J. I. Baldwin. Exploration and social play in squirrel monkeys (Saimiri). Amer. Zool., 14:303–315, 1974.

[10]   L. Benton. The establishment and husbandry of a black howler Alouatta. caraya colony at Columbia Zoo. Int. Zoo Yb., 16:149–152, 1978.

[11]   H. M. Brand. Husbandry and breeding of a newly-established colony of cotton-topped tamarins (Saguinus oedipus oedipus). Lab. Anim., 15:7–11, 1981.

[12]   A. E. Brehm. Thierleben Band 1. Bibliograph. Inst. Hildburghausen, 1864.

[13]   J. Buettner-Janusch. The breeding of galagos in captivity and some notes on their behavior. Folia primatol., 22:93–110, 1964.

[14]   M. Butovskaya, A. Kozintsev, and C. Welker. Conflict and reconciliation in two groups of crab-eating monkeys differing in social status by birth. Primates, 37:261–270, 1996.

[15]   C. Calegaro-Marques and J. C. Bicca-Marques. Allomaternal care in the black howler monkey (Alouatta caraya). Folia primatol., 61:104–109, 1993.

[16]   C. Calegaro-Marques and J. C. Bicca-Marques. Emigration in a black howling monkey group. Int. J. Primat., 17:229–237, 1996.

[17]   F. C. Canavez, M. A. M. Moreira, F. Simon, P. Parham, and H. N. Seuánez. phylogenetic relationship of the Callitrichinae (Platyrrhini, Primates) based on microglobulin DNA sequences. Am. J. Primat., 48:225–236, 1999.

[18]   C. R. Carpenter. A field study of the behavior and social relations of howler monkeys (Alouatta palliata). In R. C. Carpenter, editor, Naturalistic behavior of nonhuman primates, pages 3–92. Penn. State Univ. Press, 1964.

[19]   J. R. Cerquera. S.O.S for the cotton-top tamarin (Saguinus oedipus. Primate Conserv., 6:17–19, 1985.

[20]   A. Christen. Haltung und Brutbiologie von Cebuella. Folia primatol., 8:41–49, 1968.

[21]   A. B. Clark. Scent marks as social signals in Galago crassicaudatus I. Sex and reproductive status as factors in signals and responses. J. Chem. Ecol., 8:1133–1151, 1982.

[22]   A. B. Clark. Scent marks as social signals in Galago crassicaudatus II. Discrimination between individuals by scent. J. Chem. Ecol., 8:1153–1165, 1982.

[23]   A. B. Clark. Sociality in a nocturnal „solitary“ prosimian: Galago crassicaudatus. Int. J. Primat., 6:581–600, 1985.

[24]   A. B. Clark. Interspecific differences and discrimination of auditory and olfactory signals of Galago crassicaudatus and Galago garnettii. Int. J. Primat., 9:557–571, 1988.

[25]   A. F. Coimbra-Filho and R. A. Mittermeier. New data on the taxonomy of the Brazilian marmosets of the genus Callithrix Erxleben, 1777. Folia primatol., 20:241–264, 1973.

[26]   R. W. Cooper. Squirrel monkey taxonomy and supply. In L. A. Rosenblum and R. W. Cooper, editors, The squirrel monkey, chapter 1, pages 1–29. Academic Press, 1968.

[27]   E. Da Cruz Lima. Mammals of Amazonia, volume 1 General introduction and primates. Oficína Gráfica Mauá Ltda., 1945. Contribution from the Museo Paraense Emilio Goeldi de historia natural e etnografia.

[28]   G. Dawson. Behavioral ecology of the Panamanian tamarin, Sagiunus oedipus (Callitrichidae. Primates). PhD thesis, Michigan State University, 1976.

[29]   G. A. Dawson. The use of time and space by the Panamanian tamarin, Saguinus oedipus. Folia primatol., 31:253–284, 1979.

[30]   L. E. M. De Boer. A case of abnormal chromosome number in a female Aotes trivirgatus (Humboldt, 1811) (Cebidae, Primates). Genen Phaenen, 14:51–55, 1971.

[31]   L. E. M. De Boer. Chromosome studies in primates from zoological gardens in the Netherlands. Genen Phaenen, 15:41–64, 1972.

[32]   L. E. M. De Boer. Cytotaxonomy of the Platyrrhini (Primates). Genen Phaenen, 17:1–115, 1974.

[33]   L. E. M. De Boer. Karyological problems in breeding owl monkeys Aotus trivirgatus. Int. Zoo Yb., 22:119–124, 1981.

[34]   F. B. M. De Waal. Join-aggression and protective-aggression among captive Macaca fascicularis. In D. J. Chivers and J. Herbert, editors, Recent advances in primatology, volume 1, pages 577–579. Academic Press, 1978.

[35]   H. K. Dennig. Babesia galagolata n. sp., eine Babesienart des Galagos (Galago crassicaudatus). Z. Parasitenk., 41:281–290, 1973.

[36]   A. F. Dixson and R. N. Van Horn. Comparative studies of morphology and reproduction in two subspecies of the greater bushbaby, Galago crassicaudatus crassicaudatus and G. c. argentatus. J. Zool., Lond., 183:517–526, 1977.

[37]   I. J. Dobroruka. Social communication in the Brown capuchin Cebus apella. Int. Zoo Yb., 12:43–45, 1972.

[38]   D. R. Drews. Group formation in captive Galago crassicaudatus: Notes on the dominance concept. Z. Tierpsychol., 32:425–435, 1973.

[39]   M. Dulitz. Die Auswirkung von Verhaltensöstren und Geburten auf die sozialen Beziehungen der Individuen in Sozialgruppen des Gehaubten Kapuzineraffen Cebus apella. PhD thesis, Universität Kassel, 1998.

[40]   F. M. DuMond. The squirrel monkey in a seminatural environment. In L. A. Rosenblum and R. W. Cooper, editors, The squirrel monkey, chapter 4, pages 88–145. Academic Press, 1968.

[41]   R. H. Eaglen and E. L. Simons. Notes on the breeding biology of thick-tailed and silvery galagos in captivity. J. Mamm., 61:534–537, 1980.

[42]   G. G. Eaton, A. Slob, and J. A. Resko. Cycles of mating behaviour, oestrogen and progesterone in the thick-tailed bushbaby (Galago crassicaudatus crassicaudatus) under laboratory conditions. Anim. Behav., 21:309–315, 1973.

[43]   J. Egozcue. The chromosomes of the lesser bushbaby (Galago sengalensis) and the greater bushbaby (Galago crassicaudatus). Folia primatol., 12:236–240, 1970.

[44]   A. Ehrlich. Infant development in two prosimian species: greater galago and slow loris. Developm. Psychobiol., 7:439–454, 1974.

[45]   A. Ehrlich. Social and individual behaviors in captive greater galagos. Behaviour, 63:192–214, 1977.

[46]   I. Eibl-Eibesfeldt. Eine besondere Form des Duftmarkierens beim Riesengalago Galago crassicaudatus E. Geoffroy, 1812. Säugetierkundliche Mitteilungen, 1:171–173, 1953.

[47]   G. Epple. Vergleichende Untersuchungen über Sexual- und Sozialverhalten der Krallenaffen (Hapalidae). Folia primatol., 7:37–65, 1967.

[48]   G. Epple. Maintenance, breeding, and development of marmoset monkeys (Callithricidae) in captivity. Folia primatol., 12:56–76, 1970.

[49]   G. Epple. Reproductive and social behavior of marmosets with special reference to captive breeding. Prim. Med., 10:50–62, 1978.

[50]   H. G. Erkert. Der Einfluß des Mondlichtes auf die Aktivitätsperiodik nachtaktiver Säugetiere. Oecologia, 14:269–287, 1974.

[51]   H. G. Erkert. Beleuchtungsabhängiges Aktivitätsoptimum bei Nachtaffen (Aotus trivirgatus). Folia primatol., 25:186–192, 1976.

[52]   H. G. Erkert. Lunarperiodic variation of the phase-angle difference in nocturnal animals under natural Zeitgeber-conditions near the Equator. Int. J. Chronobiol., 4:125–138, 1976.

[53]   H. G. Erkert and A. Thiemann. Dark switch in the entrainement of circadian activity rhythms in night monkeys, Aotus trivirgatus Humboldt. Comp. Biochem. Physiol., 74A:307–310, 1983.

[54]   L. Fairbanks. An analysis of subgroup structure and process in a captive squirrel monkey (Saimiri sciureus) colony. Folia primatol., 21:209–224, 1974.

[55]   E. Fernandez-Duque, W. A. Mason, and S. P. Mendoza. Effects of duration of separation on responses to mates and strangers in the monogamous titi monkey (Callicebus moloch). Am. J. Primat., 43:225–237, 1997.

[56]   N. Fiege and C. Welker. Skin lesions caused by Gongylonema sp. (Nematoda: Spiruida) in goeldi’s monkeys (Callimico goeldii) and common marmosets (Callithrix jacchus). Zbl. Bakt., 282:143–144, 1995.

[57]   H. O. Forbes. A handbook to the Primates, volume I. W. H. Allen & Co., 1894.

[58]   W. T. Frederickson and G. P. Sackett. Kin preferences in primates (Macaca nemestrina): relatedness or familiarity? J. Comp. Psychol., 98:29–34, 1984.

[59]   R. Hager and C. Welker. Are infant Callithrix jacchus being fed by their parents? Primate Report, 50:67–70, 1998.

[60]   J. K. Hampton and S. H. Hampton. Marmosets (Hapalidae): Breeding seasons, twinning and sex of offspring. Science, 150 (3698):915–917, 1965.

[61]   J. K. Hampton and S. H. Hampton. Some expected and unexpected characteristics of reproduction in Callithricidae. Lab. Anim. Handb., 6:235–241, 1975.

[62]   J. K. Hampton, S. H. Hampton, and B. T. Landwehr. A special breeding cage for small primates such as marmosets. Lab. Anim. Care, 15:178–183, 1965.

[63]   J. K. Hampton, S. H. Hampton, and B. T. Landwehr. Observations on a successful breeding colony of the marmoset Oedipomidas oedipus. Folia primatol., 4:265–287, 1966.

[64]   S. H. Hampton and J. K. Hampton. Rearing marmosets from birth by artificial laboratory techniques. Lab. Anim. Care, 17:1–10, 1987.

[65]   J. K. Hampton JR. Laboratory requirements and observations of Oedipomidas oedipus. Am. J. Phys. Anthrop., 22:239–244, 1964.

[66]   C. S. Harcourt. The behaviour and ecology of galagos in Kenyan coastal forest. PhD thesis, University of Cambridge, 1984.

[67]   W. C. Hartwig and D. J. Meldrum. Miocene platyrrhines of the northern Neotropics. In W. C. Hartwig, editor, The primate fossil record, pages 175–188. Cambridge Univ. Press, 2002.

[68]   L. Heck. Herren- oder Hochtiere (Primates). In O. zur Strassen, editor, Brehms Tierleben 4. Aufl., volume 13, pages 430–699. Bibliograph. Inst. Leipzig u. Wien, 1920.

[69]   H. Hediger and F. Zweifel. Primaten-ethologische Schnappschüsse aus dem Züricher Zoo. Bibl. primat., 1:252–276, 1962.

[70]   W. Heger and D. Neubert. Maintenance and breeding of Callithrix jacchus in a colony in Berlin. In D. Neubert, H. J. Merker, and A. G. Hendricks, editors, Nonhuman primates: developmental biology and toxicology, pages 53–67. Ueberreuther Wissenschaftsverlag, 1988.

[71]   D. Heinemann. Kapuzinerartige Neuweltaffen. In B. Grzimek, editor, Grzimeks Tierleben, volume 10, chapter 15, pages 310–347. Kindler Verlag, Zürich, 1968.

[72]   H. Heinemann. The breeding and maintenance of captive Goeldi’s monkeys Callimico goeldii. Int. Zoo Yb., 10:72–78, 1970.

[73]   P. G. Heltne, J. F. Wojcik, and A. G. Pook. Goeldi’s monkey, genus Callimico. In Coimbra-Filho A. F. and R. A. Mittermeier, editors, Ecology and behavior of Neotropical primates, volume 1, chapter 4, pages 169–209. Academia Brasileira de Ciencias, Rio de Janeiro, 1981.

[74]   W. Hennig. Phylogenetic systematics. University of Illinois Press, 1966.

[75]   P. Hershkovitz. A systematic and zoogeographic account of the monkeys of the genus Callicebus (Cebidae) of the Amazonas and Orinoco River basins. Mammalia, 27:1–79, 1963.

[76]   P. Hershkovitz. Notes on New World monkeys. Int. Zoo Yb., 12:3–12, 1972.

[77]   P. Hershkovitz. Comments on the taxonomy of Brazilian marmosets (Callithrix, Callitrichidae). Folia primatol., 24:137–172, 1975.

[78]   P. Hershkovitz. Living new world monkeys (Platyrrhini) with an introduction to primates, volume 1. University of Chicago Press, 1977.

[79]   P. Hershkovitz. Two new species of night monkeys, genus Aotus (Cebidae, Platyrrhini): A preliminary report on Aotus taxonomy. Am. J. Primat., 4:209–243, 1983.

[80]   P. Hershkovitz. The titi. Field Mus. Nat. Hist. Bull., 58(6):11–15, 1987.

[81]   P. Hershkovitz. Origin, speciation, and dispersal of South American titi monkeys, genus Callicebus (family Cebidae, Platyrrhini). Proc. Acad. Nat. Sci. Philadelphia, 140:240–272, 1988.

[82]   P. Hershkovitz. Titis, New World monkeys of the genus Callicebus (Cebidae, Platyrrhini): A preliminary taxonomic review. Fieldiana N. S., 55:1–109, 1990.

[83]   R. Heymons. Die Vielfüßler, Insekten und Spinnenkerfe. In O. zur Strassen, editor, Brehms Tierleben 4. Aufl., volume 2. Bibliograph. Inst. Leipzig u. Wien, 1920.

[84]   W. A. Hiddleston. Large scale production of a small laboratory primate - Callithrix jacchus. In T. Antikatzides, S. Erichsen, and A. Spiegel, editors, The laboratory animal in the study of reproduction, pages 51–57. Gustav Fischer Verlag, New York, 1976.

[85]   W. C. O. Hill. Primates. Comparative Anatomy and Taxonomy, volume I. Edingburgh University Press, Edingburgh, 1953.

[86]   W. C. O. Hill. Primates. Comparative Anatomy and Taxonomy, volume III. Edingburgh University Press, Edingburgh, 1957.

[87]   W. C. O. Hill. Primates. Comparative Anatomy and Taxonomy, volume IV Part A. Edingburgh University Press, Edingburgh, 1960.

[88]   W. C. O. Hill. Primates. Comparative Anatomy and Taxonomy, volume VII. Edingburgh University Press, Edingburgh, 1974.

[89]   K. A. Hoffmann, S. P. Mendoza, M. B. Hennessy, and W. A. Mason. Responses of infant titi monkeys, Callicebus moloch, to removal of one or both parents: Evidence for paternal attachment. Developm. Psychobiol., 28:399–407, 1995.

[90]   S. Hopf. New findings on the ontogeny of social behaviour in the squirrel monkey. Psychiat. Neurol. Neurochir., 74:21–34, 1971.

[91]    S. Hopf. Sozialpsychologische Untersuchungen zur Verhaltensentwicklung des Totenkopfaffen. PhD thesis, Philipps-Universität Marburg, 1972.

[92]   S. Hopf. Study of spontaneous behavior in squirrel monkey groups: Observation techniques, recording devices, numerical evaluation and reliability tests. Folia primatol., 17:363–388, 1972.

[93]   S. Hopf. Huddling subgroup in captive squirrel monkeys and their changes in relation to ontogeney. Biol. Behav., 3:147–162, 1978.

[94]   S. Hopf. Birth season shifts to a 13-month pattern in squirrel monkey groups kept indoors for 7-12 years. Folia primatol., 56:214–218, 1991.

[95]   S. Hopf, E. Hartmann-Wiesner, B. Kühlmorgen, and S. Mayer. The behavioral repertoire of the squirrel monkey (Saimiri). Folia primatol., 21:225–249, 1974.

[96]   S. Hopf and M. Herzog. Onset of peer interactions in socially inexperienced squirrel monkeys. Folia primatol., 44:121–128, 1985.

[97]   S. Hopf and D. Ploog. Insect-catching behavior in socially inexperienced infant squirrel monkeys. Primates, 32:111–114, 1991.

[98]   K. Izawa. Studies on peculiar distribution pattern of Callimico. Reports of New World monkeys, pages 1–19, 1979.

[99]   K. Izawa and G. Bejarano. Distribution ranges and patterns of nonhuman primates in Western Pando, Bolivia. Reports of New World monkeys, pages 1–12, 1981.

[100]   G. H. Jacobs. Brightness preference in nocturnal and diurnal South American monkeys. Folia primatol., 28:231–240, 1977.

[101]   G. H. Jacobs. Visual capacities of the owl monkey (Aotus trivirgatus)-I. Spectral sensitivity and color vision. Vision Research, 17:811–820, 1977.

[102]   G. H. Jacobs. Visual capacities of the owl monkey (Aotus trivirgatus)-II. Spatial contrast sensitivity. Vision Research, 17:821–825, 1977.

[103]   B. Jantschke. Der Springaffe (Callicebus cupreus). Z. Kölner Zoo, 35:155–160, 1992.

[104]   B. Jantschke. Vergleichende Untersuchungen zum Sozialverhalten des Springaffen Callicebus cupreus und des Nachtaffen Aotus azarae. Ein Beitrag zur Ethologie basaler Cebidae. PhD thesis, University of Kassel, 1992.

[105]   B. Jantschke, C. Welker, and A. Klaiber-Schuh. Notes on breeding of the titi monkey Callicebus cupreus. Folia primatol., 65:210–213, 1996.

[106]   B. Jantschke, C. Welker, and A. Klaiber-Schuh. Rearing without paternal help in the Bolivian owl monkey Aotus azarae boliviensis: A case study. Folia primatol., 69:115 –120, 1998.

[107]   C. Jones and S. Anderson. Callicebus moloch. Mammalian Species, 112:1–5, 1978.

[108]   W. Kaumanns, H. Klensang, T. Olfenbüttel, B. Rohrhuber, and M. Schwibbe. Zur Haltung von Lisztaffen (Saguinus oedipus). Z. Kölner Zoo, 29:43–62, 1986.

[109]   T. Kawamichi and M. Kawamichi. Spatial organization and territory of tree shrews (Tupaia glis). Anim. Behav., 27:381–393, 1979.

[110]   T. Kawamichi and M. Kawamichi. Social organization of tree shrews (Tupaia glis). In A. B. Chiarelli and R. S. Corruccini, editors, Primate Behavior and Sociobiology, pages 1–17. Springer, Berlin Heidelberg New York, 1981.

[111]   M. J. Kessler and H. S. Martinez. Allomaternal rearing of infant squirrel monkeys by nursing mothers. Lab. Prim. Newsl., 17:17–20, 1978.

[112]   W. G. Kinzey. The titi monkey, genus Callicebus. In Coimbra-Filho A. F. and R. A. Mittermeier, editors, Ecology and behavior of Neotropical primates, volume 1, pages 241–276. Academia Brasileira de Ciencias, 1981.

[113]   W. G. Kinzey and M. Becker. Activity pattern of the masked titi monkey Callicebus personatus. Primates, 24:337–343, 1983.

[114]   A. Klaiber-Schuh and C. Welker. Crab-eating monkeys (Macaca fascicularis) cab be trained to cooperate in non-invasive oral medication without stress. Primate Report, 47:11–30, 1997.

[115]   H. Kröger. Die Ontogenese von Geschlechterrollen bei dem Gehaubten Kapuzineraffen Cebus apella. PhD thesis, Universität Kassel, 1990.

[116]   F. Külhorn. Körper- und Organgewichte normaler und verhungerter Kapuzineraffen, Cebus apella (Linné, 1758). Säugetierkdl. Mitt., 6:107–113, 1958.

[117]   H. Kummer. Rules of dyad and group formation among captive gelada baboons (Theropithecus gelada). Symp. 5th Cong. Primate Soc., pages 129–159, 1974.

[118]   H. Lorenz, R. Heinemann. Beitrag zur Morphologie und körperlichen Jugendentwicklung des Springtamarin Callimico goeldii (Thomas, 1904). Folia primatol., 6:1–27, 1967.

[119]   K. Lorenz. Das sogenannte Böse. Borotha-Schoeler, 1963.

[120]   R. Lorenz. Sollte jemand das große Glück haben ..... Z. Kölner Zoo, 9:11–14, 1966.

[121]   R. Lorenz. Notes on the care, diet and feeding habits of goeldii‘s monkey Callimico goeldii. Int. Zoo Yb., 9:150–155, 1969.

[122]   R. Lorenz. Second generation bred in Goeldi’s monkey, Callimico goeldii, Callimiconidae, Primates. Int. Zoo News, 17:79–80, 1970.

[123]   R. Lorenz. Goeldi’s monkey Callimico goeldii Thomas 1904 preying on snakes. Folia primatol., 15:133–142, 1971.

[124]   R. Lorenz. Management and reproduction of the Goeldi’s monkey Callimico goeldii (Thomas, 1904), Callimiconidae, Primates. In D. D. Bridgewater, editor, Saving the lion marmoset, pages 92–109. Proc. Wild Animal Propagation Trust Golden Lion Marmoset Conference, 1972.

[125]   R. Lorenz and W. A. Mason. Establishment of a colony of titi monkeys Callicebus moloch. Int. Zoo Yb., 11:168–175, 1971.

[126]   B. Lührmann. Zur Struktur des sozialen Beziehungsgefüges in einer definierten Macaca fascicularis-Gruppe unter Berücksichtigung des Einflusses von Reproduktionszyklen. PhD thesis, Universität Kassel, 1981.

[127]   M. R. Malinow, B. L. Pope, J. R. Depali, and S. Katz. Laboratory observations in living howlers. Bibl. primat., 7:224–230, 1968.

[128]   W. A. Mason. Social organization of the South American monkey, Callicebus moloch: a preliminary report. Tulane Studies in Zoology, 13:23–28, 1966.

[129]   W. A. Mason. Field and laboratory studies of social organization in Saimiri and Callicebus. In L. A. Rosenblum, editor, Primate Behavior: Developments in field and laboratory research, volume 2, pages 107–137. Academic Press, 1971.

[130]   W. A. Mason. Comparative studies of social behavior in Callicebus and Saimiri: behavior of male-female pairs. Folia primatol., 22:1–8, 1974.

[131]   W. A. Mason. Differential grouping patterns in two species of South American monkey. In N. F. White, editor, Ethology and psychiatry, chapter 8, pages 153–169. Toronto University Press, 1974.

[132]   W. A. Mason. Comparative studies of social behavior in Callicebus and Saimiri: strength and specifity of attraction between male-female cagemates. Folia primatol., 23:113–123, 1975.

[133]   W. A. Mason. Primate social behavior: pattern and process. In R. B. Masterton, M. E. Bitterman, C. B. Campbell, and N. Hotton, editors, Evolution of brain and behavior in vertebrates., chapter 19, pages 425–455. Hillsdale, New Jersey: Lawrence Erlbaum Associates, 1976.

[134]   W. A. Mason. Discovering behavior. American Psychologist, 52:713–720, 1997.

[135]   W. A. Mason and G. Epple. Social organization in experimental groups of Saimiri and Callicebus. In Proc. 2nd Int. Congr. Primat., pages 59–65. Karger, 1969.

[136]   W. A. Mason and S. P. Mendoza. Contrasting life modes in Cebidae: titi monkeys (Callicebus) and squirrel monkeySaimiri). Am. Assoc. Zool. Parks and Aquariums 1993 Regional Proc., pages 715–722, 1993.

[137]   W. A. Mason and S. P. Mendoza. Generic aspects of primate attachments: parents, offspring and mates. Psychoneuroendocrinology, 23:765–778, 1998.

[138]   E. Mayr. The growth of biological thought. Belknap Press, 1982.

[139]   R. A. Mittermeier and A. F. Coimbra-Filho. Systematics: species and subspecies. In A. F. Coimbra-Filho and R. A. Mittermeier, editors, Ecology and behavior of Neotropical primates, volume 1, pages 29–109. Academia Brasileira de Ciencias, 1981.

[140]   R. A. Mittermeier, A. B. Rylands, and A. F. Coimbra-Filho. Systematics: species and subspecies - an update. In R. A. Mittermeier, A. B. Rylands, Coimbra-Filho A. F., and G. A. B. da Fonseca, editors, Ecology and behavior of Neotropical primates, volume 2, pages 13–75. World Wildlife Fund, Washington, D. C., 1988.

[141]   R. A. Mittermeier, A. B. Rylands, and D. E. Wilson. Primates. In Handbook of the mammals of the world, volume 3. Lynx Edicions, Barcelona, 2013.

[142]   W. Montagna and J. S. Yun. The skin of primates VII. The skin of the great bushbaby (Galago crassicaudatus). Am. J. Phys. Anthrop., 20:149–165, 1962.

[143]   M. Moynihan. The New World primates. Princeton University Press, 1976.

[144]   P. H. Napier, J. R. und Napier. A handbook of living Primates. Academic Press London, New York, 1967.

[145]   L. T. Nash and C. S. Harcourt. Social organization of galagos in Kenyan coastal forests: II. Galago garnettii. Am. J. Primat., 10:357–369, 1986.

[146]   M. Neusser, R. Stanyon, F. Bigoni, J. Wienberg, and S. Müller. Molecular cytotaxonomy of New world monkeys (Platyrrhini) - comparative analysis of five species by multi-color chromosome painting gives evidence for a classification of Callimico goeldi within the family of Callitrichidae. Anim. Cytogen. Comp. Map., 94:206–215, 2001.

[147]   J. D. Newman. In search of the Sulawesi macaques. Letter, pages 1–11, 1994.

[148]   P. F. Neyman. Aspects of the ecology and social organization of free-ranging cotton-top tamarins (Saguinus oedipus) and the conservation status of the species. In D. G. Kleiman, editor, The biology and conservation of the Callitrichidae, pages 39–71. Smithsonian Inst. Press, 1977.

[149]    A. Nolte. Beobachtungen über das Instinktverhalten von Kapuzineraffen (Cebus apella L.) in der Gefangenschaft. Behaviour, 12:183–207, 1958.

[150]   T. R. Olson. Studies on aspects of the morphology of the genus Otolemur Coquerel, 1859 (Primates: Galagidae). PhD thesis, University of London, 1979.

[151]   J. Pastorini, M. R. J. Forstner, Martin.R. D., and D. J. Melnick. A reexamination of the phylogenetic position of Callimico (Primates) incorporating new mitochondrial DNA sequence data. J. Mol. Evol., 47:32–41, 1998.

[152]   M. K. Pec. Vergleichende Verhaltensbeobachtungen an drei Gruppen des Gehaubten Kapuziners (Cebus apella LINNAEUS, 1758). PhD thesis, Universität Salzburg, 1993.

[153]   P. Pippert. Zur Bedeutung des „Biologischen Vaters“ bei nichtmenschlichen Primaten unter besonderer Berücksichtigung des Kapuzineraffen Cebus apella. PhD thesis, Universität Kassel, 1985.

[154]   D. Ploog. Vergleichend quantitative Verhaltensstudien an zwei Totenkopfaffen-Kolonien. Z. Morph. Anthrop., 53:92–108, 1963.

[155]   D. Ploog. Kommunikationsprozesse bei Affen. Homo, 19:151 –165, 1968.

[156]   D. Ploog. Early communication processes in squirrel monkeys. In J. R. Robinson, editor, Brain and Early Behavior; Development in the Fetus and Infant, pages 269–303. Academic Press, 1969.

[157]   D. Ploog. Kommunikation in Affengesellschaften und deren Bedeutung für die Verständigungsweisen des Menschen. In H.-G. Gadamer and P. Vogler, editors, Biologische Anthropologie, volume 2, pages 98–178. Georg Thieme Verlag Stuttgart, 1972.

[158]   D. Ploog. Mutuality and dialogue in nonhuman primate communication. In I. Marková, C. F. Graumann, and K. Foppa, editors, Mutualities in dialogue, chapter 2, pages 27–57. Cambridge Univ. Press, 1995.

[159]   D. W. Ploog, J. Blitz, and F. Ploog. Studies on social and sexual behavior of the squirrel monkey (Saimiri sciureus). Folia primatol., 1:29–66, 1963.

[160]   R. I. Pocock. On the external characters of the South American monkeys. Proc. Zool. Soc. London, 120:91–113, 1920.

[161]   R. I. Pocock. Additional notes on the external characters of some platyrrhine monkeys. Proc. Zool. Soc. London, 25:27–47, 1925.

[162]   A. G. Pook. Springtamarine. In B. Grzimek, editor, Grzimeks Tierleben, volume 2, pages 178–182. Kindler Verlag, München, 1988.

[163]   A. G. Pook and G. Pook. Polyspecific association between Saguinus fuscicollis, Saguinus labiatus, Callimico goeldii and other primates in North-Western Bolivia. Folia primatol., 38:196–216, 1982.

[164]   A. Portmann. Einführung in die vergleichende Morphologie der Wirbeltiere. Benno Schwabe, Basel, Stuttgart, 1959.

[165]   A. Portmann. Zerebralisation und Ontogenese. Med. Grundlagenf., 40:1–62, 1962.

[166]   A. Portmann. Die Stellung des Menschen in der Natur. Hdb. Biol., 9:437–460, 1964.

[167]   A. Portmann. Zoologie aus vier Jahrzehnten. R. Piper, München, 1967.

[168]   M. L. Power, S. D. Tardif, R. A. Power, and D. G. Layne. Resting energy metabolism of Goeldi’s monkey (Callimico goeldii) is similar to that of other callitrichids. Am. J. Primat., 60:57–67, 2003.

[169]   F. Princée. Isozymonderzoek in Cebus: de mogelijkheden voor een genetisch beheer. PhD thesis, Rijksuniversiteit Leiden, 1984.

[170]   G. B. Rathbun and M. Gache. Ecological survey of the night monkey, Aotus trivirgatus, in Formosa province, Argentina. Primates, 21:211–219, 1980.

[171]   B. Rensch. Gedächtnis, Begriffsbildung und Planhandlungen bei Tieren. Paul Parey, Berlin, 1973.

[172]   P. Roberts. Social interactions of Galago crassicaudatus. Folia primatol., 14:171–181, 1971.

[173]   B. Rohrhuber. Qualitative und quantitative Unterschiede zwischen den Geschlechtern im Verhalten paarweise lebender Lisztaffen (Saguinus oedipus oedipus). PhD thesis, University of Kassel, 1990.

[174]   L. M. Rosenson. Interactions between infant greater bushbabies (Galago crassicaudatus crassicaudatus) and adults other than their mothers under experimental conditions. Z. Tierpsychol., 31:240–269, 1972.

[175]   L. M. Rosenson. Observations of the maternal behaviour of two captive greater bushbabies (Galago crassicaudatus argentatus). Anim. Behav., 20:677–688, 1972.

[176]   L. M. Rosenson. Group formation in the captive greater bushbaby (Galago crassicaudatus crassicaudatus). Anim. Behav., 21:67–77, 1973.

[177]   P. Rothe. Erdgeschichte. Wissenschaftliche Buchgesellschaft, 2000.

[178]   A. B. Rylands, A. F. Coimbra-Filho, and R. A. Mittermeier. Systematics, geographic distribution, and some notes on the conservation status of the Callitrichidae. In Marmosets and Tamarins. Oxford Science Publisher, 1993.

[179]   A. B. Rylands, G. A. B. da Fonseca, Y. L. R. Leite, and R. A. Mittermeier. Primates of the Atlantic forest. Origin, distribution, endemism, and communities. In M. A. Norconk, A. L. Rosenberger, and P. A. Garber, editors, Adaptive radiation of Neotropical primates, pages 21–51. Plenum Press, New York, 1996.

[180]   I. T. Sanderson and R. Steinbacher. Knaurs Affenbuch. Droemersche Verlagsanstalt Th. Knaur Nachf., 1957.

[181]   E. G. F. Sauer. Mother-infant relationship in galagos and the oral child-transport among primates. Folia primatol., 7:127–149, 1967.

[182]   E. G. F. Sauer. Zur Biologie der Zwerg- und Riesengalagos. Z. Kölner Zoo, 17:67–84, 1974.

[183]   A. Savage. Collaboration between research institutions and zoos for primate conservation. Int. Zoo Yb., 27:140–148, 1988.

[184]   A. Savage, L. M. Dronzek, and C. T. Snowdon. Color discrimination by the cotton-top tamarin (Saguinus oedipus oedipus) and its relation to fruit coloration. Folia primatol., 49:57–69, 1987.

[185]   A. Savage, L. H. Giraldo, L. H. Soto, and C. T. Snowdon. Demography, group composition, and dispersal in wild cotton-top tamarin (Saguinus oedipus) groups. Am. J. Primat., 38:85–100, 1996.

[186]   A. Savage, S. E. Shideler, L. H. Soto, J. Causado, L. H. Giraldo, B. L. Lasley, and C. T. Snowdon. Reproductive events of wild cotton-top tamarins (Saguinus oedipus) in Colombia. Am. J. Primat., 43:329–337, 1997.

[187]   A. Savage, C. T. Snowdon, and H. Giraldo. Proyecto Titi: A hands-on approch to conservation education in Columbia. AAZPA, Ann. Conf. Proc.:605–606, 1989.

[188]   A. Savage, C. T. Snowdon, L. H. Giraldo, and L. H. Soto. Parental care patterns and vigilance in wild cotton-top tamarins Saguinus oedipus. In M. A. Norconk, A. L. Rosenberger, and P. A. Garber, editors, Adaptive radiation of Neotropical primates, pages 187–199. Plenum Press, New York, 1996.

[189]   A. Savage and R. Williams. Tamarins, teens and teamwork: an integrated approach to in situ conservation. AAZPA, A:106–108, 1993.

[190]   A. Savage, T. E. Ziegler, and C. T. Snowdon. Sociosexual development, pair bond formation, and mechanisms of fertility suppression in female cotton-top tamarins (Saguinus oedipus oedipus). Am. J. Primat., 14:345–359, 1988.

[191]   A. Savage, L. H. Zirofsky, L. H. Soto, L. H. Giraldo, and J. Causado. Proyecto titi: An integrated approach to conserving the cotton-top tamarin. Int. Zoo News, 1996:544–552, 1996.

[192]   J. M. Scanlan. Social dominance as a predictor of behavioral and pituitary-adrenal response to social separation in rhesus monkey infants. Abstract Soc. Res. Child Developm., 1987.

[193]   J. M. Scanlan, S. Sutton, R. Maclin, and S. J. Suomi. The heritability of social dominance in lab reared rhesus monkeys. Abstract of paper presented to Soc. Res. Child Developm., 1985.

[194]   C. Schäfer-Witt. Zur Ontogenese der Geschlechterrollen bei Macaca fascicularis. PhD thesis, Universität Kassel, 1986.

[195]   C. Schäfer-Witt, B. Jantschke, and C. Welker. Zur Bedeutung verwandtschaftlicher Beziehungen in einer Sozialgruppe des Totenkopfaffen Saimiri sciureus. Z. Säugetierkde, 58 (Beiheft):60, 1993.

[196]   C. Schäfer-Witt and C. Welker. Sex-differences and age, the crab-eating monkeys Macaca fascicularis as an example. Primate Report, 32:119–132, 1992.

[197]   H. Schneider, M. P. C. Schneider, I. Sampaio, M. L. Harada, M. Stanhope, J. Czelusniak, and M. Goodman. Molecular phylogeny of the New World monkeys (Platyrrhini, Primates). Molec. Phylogen. Evol., 2:225–242, 1993.

[198]   E. Schwarz. On the African long-tailed lemurs or galagos. The Annals and Magazine of Natural History, 7(Serie 10):41–64, 1931.

[199]   H. R. Seibold, R. Lorenz, and R. H. Wolf. Giant cell aortitis in a South American monkey (Callimico goeldii). Vet. Path., 9:230–237, 1972.

[200]   H. E. Seuánez, L. Forman, T. Matayoshi, and T.G. Fanning. The Callimico goeldii (Primates, Platyrrhini) genome: Karyology and middle repetitive (LINE-1) DNA sequences. Chromosoma, 98:389–395, 1989.

[201]   A. H. Shoemaker. Observations on howler monkeys, Alouatta caraya, in captivity. Zool. Garten N. F., 4:225–234, 1978.

[202]   A. H. Shoemaker. Reproduction and development of the black howler monkey Alouatta caraya at Columbia Zoo. Int. Zoo Yb., 19:150–155, 1979.

[203]   C. T. Snowdon. Infant care in cooperatively breeding species. Advanc. Stud. Behav., 25:643–689, 1996.

[204]   C. T. Snowdon, J. Cleveland, and J. A. French. Responses to context- and individual-specific cues in cotton-top tamarin long calls. Anim. Behav., 31:92–101, 1983.

[205]   C. T. Snowdon and J. A. French. Breeding endangered callitrichids in captivity. A Primat. No Brasil, 1:97–106, 1983.

[206]   C. T. Snowdon, T. E. Ziegler, and T. M. Widowski. Further hormonal suppression of eldest daughter cotton-top tamarin following birth of infants. Am. J. Primat., 31:11–21, 1983.

[207]   V. Sodaro. Beobachtungen in Pando, Nordbolivien. Persönliche Mitteilung, 2015.

[208]   H. Sprankel. Untersuchungen an Tarsius I. Morphologie des Schwanzes nebst ethologischen Bemerkungen. Folia primatol., 3:153–188, 1965.

[209]   P. Steinweg. Untersuchungen zum Sozialverhalten derTotenkopfaffen Saimirii sciureus(Linnaeus, 1758) und Saimiri boliviensis d’Orbigny, 1834 in Menschenobhut. PhD thesis, Universität Kassel, 2000.

[210]   S. J. Suomi. New studies of social development in rhesus monkeys (Macaca mulatta). Verh. Dtsch. Zool. Ges., 77:37–44, 1984.

[211]   J. M. Tandy. Behaviour and social structure of a laboratory colony of Galago crassicaudatus. In Prosimian Biology (Martin, R. D., Doyle, G. A. and Walker, A. C., Hrsg.), pages 245–259. Duckworth, 1974.

[212]   S. D. Tardif. Relationship between social interactions and sexual maturation in female Saguinus oedipus oedipus. Folia primatol., 40:268–275, 1983.

[213]   S. D. Tardif. Social influences on sexual maturation of female Saguinus oedipus oedipus. Am. J. Primat., 6:199–209, 1984.

[214]   S. D. Tardif. Status of the cotton-top tamarin (Saguinus oedipus) in captivity. Primate Conserv., 6:38–39, 1985.

[215]   S. D. Tardif. The bioenergetics of parental behavior and the evolution of alloparental care in marmosets and tamarins. In N. G. Solomon and J. A. French, editors, Cooperative breeding in mammals, pages 11–33. Cambridge Univ. Press, Cambridge, 1996.

[216]   S. D. Tardif and K. Bales. Is infant-carrying a courtship strategy in callitrichid primates? Anim. Behav., 53:1001–1007, 1997.

[217]   S. D. Tardif, R.L. Carson, and B.L. Gangaware. Comparison of infant care in family groups of the common marmoset (Callithrix jacchus) and the cotton-top tamarin (Saguinus oedipus). Am. J. Primat., 11:103–110, 1986.

[218]   S. D. Tardif, R.L. Carson, and B.L. Gangaware. Infant-care behavior of mothers and fathers in a communal-care primate, the cotton-top tamarin (Saguinus oedipus). Am. J. Primat., 22:73–85, 1990.

[219]   S. D. Tardif, R.L. Carson, and B.L. Gangaware. Infant-care behavior of non-reproductive helpers in a communal-care primate, the cotton-top tamarin (Saguinus oedipus). Ethology, 92:155–167, 1992.

[220]   S. D. Tardif and N. K. Clapp. Breeding the cotton-top tamarin (Saguinus oedipus) in captivity. In N. K. Clapp, editor, A primate model for the study of Colitis and Colonic Carcinoma: the cotton-top tamarin, pages 45–53. CRC Press, 1993.

[221]   S. D. Tardif, M. L. Harrison, and M. A. Simek. Communal infant care in marmosets and tamarins: relation to energetics, ecology, and social organization. In A. B. Rylands, editor, Marmosets and tamarins. Systematics, behaviour, and ecology, pages 220–234. Oxford University Press, 1993.

[222]   S. D. Tardif and C.B. Richter. Competition for a desired food in family groups of the common marmoset (Callithrix jacchus) and the cotton-top tamarin (Saguinus oedipus). Lab. Anim. Sci., 31:52–55, 1981.

[223]   S. D. Tardif, C.B. Richter, and R.L. Carson. Effects of sibling-rearing experience on future reproductive success in two species of Callitrichidae. Am. J. Primat., 6:377–380, 1984.

[224]   R. W. Thorington. Observations of squirrel monkeys in a Colombian forest. In L. A. Rosenblum and R. W. Cooper, editors, The squirrel monkey, chapter 3, pages 69–85. Academic Press, 1968.

[225]   R. W. Thorington. The taxonomy and distribution of squirrel monkeys (Saimiri). In L. A. Rosenblum and C. L. Coe, editors, Handbook of squirrel monkey research, chapter 1, pages 1–33. Plenum Press, 1985.

[226]   M. G. M. Van Roosmalen, T. Van Roosmalen, R. A. Mittermeier, and G. A. B. De Fonseca. A new and distinctive species of marmoset (Callitrichidae, Primates) from the Lower Rio Aripuanã, State of Amazonas, Central Brazilian Amazonia. Goeldiana Zoologica, 22:1–27, 1998.

[227]   E. Visalberghi. Responsiveness to objects in two social groups of tufted capuchin monkeys (Cebus apella). Am. J. Primat., 15:349–360, 1988.

[228]   E. Visalberghi and C. Welker. Sexual behavior in Cebus apella. Antrop. Contemp., 9:164–165, 1986.

[229]   A. von Humboldt. Alexander von Humboldt Studienausgabe, volume II Teilband 2. Wissenschaftliche Buchgesellschaft, 1997.

[230]   S. L. Watson, M. Schiff, and J. P. Ward. Effects of modeling and lineage on fishing behavior in the small-eared bushbaby (Otolemur garnettii). Int. J. Primat., 15:507–519, 1994.

[231]   R. M. Weigel. The facial expressions of the Brown capuchin monkey (Cebus apella). Behaviour, 68:250–276, 1979.

[232]   C. Welker. Aufzucht des Halbaffen Galago crassicaudatus E. Geoffroy, 1812 (Lorisiformes: Galagidae) im Familienverband. Folia primatol., 18:379–389, 1972.

[233]   C. Welker. Ethologische Bedeutung des Harnwaschens von Galago crassicaudatus E. Geoffroy, 1812 (Lorisiformes: Galagidae). Folia primatol., 20:429–452, 1973.

[234]   C. Welker. Zur ethologischen Bedeutung des Harnwaschens von Galago crassicaudatus E. Geoffroy, 1812 (Lorisiformes: Galagidae). Master’s thesis, University of Gießen, 1973.

[235]   C. Welker. Verhaltensphysiologische Untersuchungen an Galago crassicaudatus E. Geoffroy, 1812 (Lorisiformes: Galagidae) in Gefangenschaft. Beiträge zum Fortpflanzungs- und Sozialverhalten, Harnwaschen, zur angeborenen Lerndisposition und Aktivitätsrhythmik aus vergleichend-ethologischer Sicht. PhD thesis, University of Gießen, 1974.

[236]   C. Welker. Beiträge zum Sozialverhalten von Galago crassicaudatus E. Geoffroy, 1812 (Lorisiformes: Galagidae) in Gefangenschaft. Verh. Dtsch. Zool. Ges., 1975:143, 1975.

[237]   C. Welker. Ethologische Untersuchung an Galago crassicaudatus E. Geoffroy, 1812 (Prosimiae: Lorisiformes; Galagidae). Verh. Ges. Anthrop. Humang., 1973:121–126, 1975.

[238]   C. Welker. Fishing behaviour in Galago crassicaudatus E. Geoffroy, 1812 (Prosimiae; Lorisiformes; Galagidae). Folia primatol., 26:284–291, 1976.

[239]   C. Welker. Zur Aktivitätsrhythmik von Galago crassicaudatus E. Geoffroy, 1812 (Prosimiae; Lorisiformes; Galagidae) in Gefangenschaft. Z. f. Säugetierkunde, 42:65–78, 1977.

[240]   C. Welker. Neue Art der Galagos in Kassel festgestellt. Publik, 2:3, 1979.

[241]   C. Welker. Zum Sozialverhalten der Kapuzineraffen Cebus apella cay ILLIGER, 1815, in Gefangenschaft. I. Gruppenbildungsprozesse. Philippia, 4:154–168, 1979.

[242]   C. Welker. Natural and dependent rank of female crab-eating monkeys (Macaca fascicularis in captivity. In A. B. Chiarelli and R. S. Corruccini, editors, Primate behavior and sociobiology, pages 93–99. Springer, 1981.

[243]   C. Welker. Zur postnatalen Entwicklung und zur frühen Mutter-Kind-Beziehung der Primaten. Anthrop. Anz., 39:261–304, 1981.

[244]   C. Welker. On the life history of a female greater galago, Galago agisymbanus Coquerel, 1859, in captivity. Folia primatol., 38:136–137, 1982.

[245]   C. Welker. The colony of marmosets of the Kassel University. Primate Report, 11:41–42, 1984.

[246]   C. Welker. Das Vererben des Ranges bei den Javanermakaken. Studia Casellana, 1:296–308, 1985.

[247]   C. Welker. Zur Sozialstruktur der Primates. Anthrop. Anz., 43:97–164, 1985.

[248]   C. Welker. Long-term studies on the social behavior of the capuchin monkey, Cebus apella. In P. K. Seth and S. Seth, editors, Perspectives in primate biology, volume 4, pages 9–16. Today & Tomorrow’s Printers and Publisher’s, New Delhi, 1992.

[249]   C. Welker. Long-term studies on the social behavior of the crab-eating monkey, Macaca fascicularis. In P. K. Seth and S. Seth, editors, Perspectives in Primate biology, volume 4, pages 17–26. Today & Tomorrow’s Printers and Publisher‘s, New Delhi, 1992.

[250]   C. Welker. Die Leistung des Beutejägers und die Soziale Intelligenz; oder: Von der Auslese und von der List des Individuums. EuS, 4:494–496, 1993.

[251]   C. Welker. Ethological research work on and with primates, and especially the crab-eating monkey, Macaca fascicularis. J. Int. Assoc. Zoo Ed., 28:20–31, 1993.

[252]   C. Welker, P. Becker, H. Höhmann, and C. Schäfer-Witt. Social relations in groups of the black-capped capuchin (Cebus apella) in captivity. Interactions of group-born infants during their second half-year of life. Folia primatol., 54:16–33, 1990.

[253]   C. Welker, P. Becker, and C. Schäfer-Witt. Social relations in groups of the black-capped capuchin Cebus apella in captivity. Interactions of group-born infants during their first 6 months of life. Folia primatol., 49:33–47, 1987.

[254]   C. Welker, C. Brinkmann, and C. Schäfer. Zum Sozialverhalten des Kapuzineraffen Cebus apella cay ILLIGER, 1815, in Gefangenschaft. II Gruppenbewußtsein. Philippia, 4:331–342, 1981.

[255]   C. Welker, H. Höhmann, and C. Schäfer Witt. Zur Ontogenese der Geschlechterrollen bei dem gehaubten Kapuziner Cebus apella. Homo, 39:26–34, 1989.

[256]   C. Welker and H. Höhmann-Kröger. To the social structure of the black-capped capuchin Cebus apella cay ILLIGER, 1815. Results of a long-term study on stable social groups in the laboratory. Medio Ambiente, 10:129–135, 1989.

[257]   C. Welker, H. Höhmann-Kröger, and G. A. Doyle. Social relations in groups of black-capped capuchin monkeys (Cebus apella) in captivity: mother-juvenile relations from the second to the fifth year of life. Z. Säugetierkde, 57:70–76, 1992.

[258]   C. Welker, H. Höhmann-Kröger, and G. A. Doyle. Social relations in groups of black-capped capuchin monkeys (Cebus apella) in captivity: sibling relations from the second to the fifth year of life. Z. Säugetierkde, 57:269–274, 1992.

[259]   C. Welker, B. Jantschke, and A. Klaiber-Schuh. Behavioural data on the titi monkey Callicebus cupreus and the owl monkey Aotus azarae boliviensis. A contribution to the discussion on the correct systematic classification of these species. Part I: Introduction and behavioural differences. Primate Report, 51:3–18, 1998.

[260]   C. Welker, B. Jantschke, and A. Klaiber-Schuh. Behavioural data on the titi monkey Callicebus cupreus and the owl monkey Aotus azarae boliviensis. A contribution to the discussion on the correct systematic classification of these species. Part II: Pair-formation and relations between mates. Primate Report, 51:19–27, 1998.

[261]   C. Welker, B. Jantschke, and A. Klaiber-Schuh. Behavioural data on the titi monkey Callicebus cupreus and the owl monkey Aotus azarae boliviensis. A contribution to the discussion on the correct systematic classification of these species. Part III: Living in family groups. Primate Report, 51:29–42, 1998.

[262]   C. Welker, B. Jantschke, and A. Klaiber-Schuh. Behavioural data on the titi monkey Callicebus cupreus and the owl monkey Aotus azarae boliviensis. A contribution to the discussion on the correct systematic classification of these species. Part IV: Breeding biology. Primate Report, 51:43–53, 1998.

[263]   C. Welker, B. Jantschke, and A. Klaiber-Schuh. Behavioural data on the titi monkey Callicebus cupreus and the owl monkey Aotus azarae boliviensis. A contribution to the discussion on the correct systematic classification of these species: Part V: Miscellaneous notes and final discussion. Primate Report, 51:55–71, 1998.

[264]   C. Welker and A. Klaiber. The capuchin monkey (Cebus apella colony of Kassel University . Demographic and reproductive data from 1974 to 1995. Primate Report, 44:55–56, 1996.

[265]   C. Welker and A. Klaiber. The common marmoset (Callithrix jacchus) colony of Kassel University. Demographic and reproductive data from 1973 to 1995. Primate Report, 44:53–54, 1996.

[266]   C. Welker and A. Klaiber. The cotton-top tamarin (Saguinus oedipus) colony of Kassel University. Demographic and reproductive data from 1974 to 1995. Primate Report, 44:54, 1996.

[267]   C. Welker and A. Klaiber. The crab-eating monkey (Macaca fascicularis) colony of Kassel University. Demographic and reproductive data from 1974 to 1995. Primate Report, 44:54–55, 1996.

[268]   C. Welker and A. Klaiber. The goeldi’s monkey (Callimici goeldiii) colony of Kassel University. Demographic and reproductive data from 1973 to 1995. Primate Report, 44:53, 1996.

[269]   C. Welker and A. Klaiber. The owl monkey (Aotus azarae boliviensis) colony of Kassel University. Demographic and reproductive data from 1978 to 1995. Primate Report, 44:52, 1996.

[270]   C. Welker and A. Klaiber. The squirrel monkey (Saimiri sciureus) colony of Kassel University. Demographic and reproductive data from 1975 to 1995. Primate Report, 44:51, 1996.

[271]   C. Welker and A. Klaiber. The titi monkey (Callicebus cupreus) colony of Kassel University. Demographic and reproductive data from 1977 to 1995. Primate Report, 44:51–52, 1996.

[272]   C. Welker and B. Lührmann. Social behaviour in a family group of Saguinus oedipus oedipus. In H. Rothe, H. J. Wolters, and J. P. Hearn, editors, Biology and behaviour of marmosets, Proceedings of the marmoset workshop, pages 281–288. Eigenverlag Rothe, 1978.

[273]   C. Welker and B. Lührmann. Zum Sozialverhalten des Javanermakaken Macaca fascicularis Raffles, 1821. I. Der Rang als Eigenschaft des Individuums. Zool. Anz., 208:175–191, 1982.

[274]   C. Welker and B. Lührmann. Zum Sozialverhalten des Javanermakaken Macaca fascicularis Raffles, 1821. II. Zur Sozialstruktur. Zool. Anz., 208:309–322, 1982.

[275]   C. Welker, B. Lührmann, and W. Meinel. Behavioural sequences and strategies of female ceab-eating monkeys, Macaca fascicularis Raffles, 1821, during group formation studies. Behaviour, 73:219–237, 1980.

[276]   C. Welker, W. Meinel, M. Grebian, and B. Lührmann. Zur lokomotorischen Aktivität des Lisztäffchens, Saguinus oedipus oedipus (Linnaeus, 1758) in Gefangenschaft. Z. f. Säugetierkunde, 45:39–44, 1980.

[277]   C. Welker, P. Pippert, and C. Witt. Die Kapuzinerkolonie der Universität Kassel. Z. Kölner Zoo, 26:115–126, 1983.

[278]   C. Welker, E. Prange, and C. Witt. Preliminary observations on the social behaviour of the greater galago, Galago agisymbanus Coquerel, 1859, in captivity. Anthrop. Anz., 40:193–203, 1982.

[279]   C. Welker and C. Schäfer-Witt. On the carrying behaviour of basic South American primates. Hum. Evol., 2:459–473, 1987.

[280]   C. Welker and C. Schäfer-Witt. Zum Sozialverhalten des Javanermakaken Macaca fascicularis Raffles, 1821. VI. Die Interaktionen des ersten halben Lebensjahres von in einer „peer“-Gruppe aufgezogenen Jungtiere. Zool. Anz., 218:193–204, 1987.

[281]   C. Welker and C. Schäfer-Witt. Kapuzinerartige. In B. Grzimek, editor, Grzimeks Enzyklopädie Säugetiere, volume 2, pages 122–177. Kindler Verlag, München, 1988.

[282]   C. Welker and C. Schäfer-Witt. Preliminary observations on behavioral differences among thick-tailed bushbabies. Int. J. Primat., 9:507–518, 1988.

[283]    C. Welker and C. Schäfer-Witt. Zum Sozialverhalten des Javanermakaken Macaca fascicularis Raffles, 1821. VIII. Geschlechtstypische Unterschiede im Verhalten bei einer in einer „peer“-Gruppe aufgezogenen Individuen während der ersten sechs Lebensjahre. Zool. Anz., 224:74–86, 1990.

[284]   C. Welker and C. Schäfer-Witt. The need of long-term studies to interpret actual behaviour patterns observable in social groups, the crab-eating monkey Macaca fascicularis as an example. Primate Report, 32:31–47, 1992.

[285]   C. Welker, C. Schäfer-Witt, R. Hennek, and P. Schroer. Zum Sozialverhalten des Javanermakaken Macaca fascicularis Raffles, 1821. IV. Zur postnatalen Entwicklung während des zweiten Lebenshalbjahres. Zool. Anz., 217:384–398, 1986.

[286]   C. Welker, C. Schäfer-Witt, and L. Schindler. Zum Sozialverhalten des Javanermakaken Macaca fascicularis Raffles, 1821. V. Zu den Beziehungen in der Gruppe geborener Jungtiere. Zool. Anz., 218:104–114, 1987.

[287]   C. Welker, C. Schäfer-Witt, and E. Sobisch. Zum Sozialverhalten des Javanermakaken Macaca fascicularis Raffles, 1821. VII. Die Interaktionen des zweiten Lebenshalbjahres von in einer „peer“-Gruppe aufgezogenen Jungtieren. Zool. Anz., 221:33–43, 1988.

[288]   C. Welker, C. Schäfer-Witt, and K. Voigt. Social position and personality in Macaca fascicularis. Folia primatol., 58:112–117, 1992.

[289]   C. Welker, C. Schäfer-Witt, R. von Borstel, H. Höhmann, and B. Jantschke. Verhaltensbeobachtungen an Sozialgruppen des Totenkopfaffen Saimiri sciureus. Alter, Geschlecht, Verwandtschaft und Vertrautheit, die wichtigsten Parameter des sozialen Beziehungsgefüges. Z. Säugetierkde, 54 (Beiheft):48, 1989.

[290]   C. Welker, M. H. Schwibbe, C. Schäfer-Witt, and E. Visalberghi. Failure of kin recognition in Macaca fascicularis. Folia primatol., 49:216–221, 1987.

[291]   C. Welker and C. Witt. Zum Sozialverhalten des Javanermakaken Macaca fascicularis Raffles, 1821. III. Zur postnatalen Entwicklung während der ersten sechs Lebensmonate. Zool. Anz., 209:177–195, 1982.

[292]   H. Wendt. Erfolgreiche Zucht des Baumwollköpfchens oder Pincheäffchens, Leontocebus (Oedipomidas) oedipus (Linné, 1758), in Gefangenschaft. Säugetierkundliche Mitteilungen, 12:49–52, 1964.

[293]   H. Wendt. Springtamarins und Krallenäffchen. In B. Grzimek, editor, Grzimeks Tierleben, volume 10, pages 348–378. Kindler Verlag, 1968.

[294]   A. Wetzel. Erfahrungen mit einem zahmen Schwarzen Brüllaffen Alouatta caraya. D. Zool. Garten (NF), 29:81–86, 1964.

[295]   A. Willig and S. Wendt. Aufzucht und Verhalten des Geoffroyi-Perückenäffchens Oedipomidas geoffroyi Pucheran, 1845. Säugetierkundliche Mitteilungen, 18:117–122, 1970.

[296]   C. Witt and C. Welker. Peer-Aufzucht des Javanermakaken, Macaca fascicularis. Vorgehen und erste Ergebnisse zur physischen und sozialen Entwicklung der Jungtiere. Verh. Dtsch. Zool. Ges., 77:211, 1984.

[297]   H. J. Wolters. Some aspects of role taking behaviour in captive family groups of the cotton-top tamarin Saguinus oedipus. In H. Rothe, H. J. Wolters, and J. P. Hearn, editors, Biology and behaviour of marmosets, Proceedings of the marmoset workshop, pages 259–278. Eigenverlag Rothe, Göttingen, 1978.

[298]   H. J. Wolters and K. Immelmann. Krallenaffen. In B. Grzimek, editor, Grzimeks Tierleben, volume 2, pages 183–204. Kindler Verlag, München, 1988.

[299]   P. C. Wright. Home range, activity pattern, and agonistic encounters of a group of night monkeys (Aotus trivirgatus) in Peru. Folia primatol., 29:43–55, 1978.

[300]   P. C. Wright. Biparental care in Aotus trivirgatus and Callicebus moloch. In M. E. Small, editor, Female primates: Studies of women primatologists, pages 59–75. Alan R. Liss, New York, 1984.

[301]   P. C. Wright. The nocturnal primate niche in the New World. J. Hum. Evol., 18:635–658, 1989.

[302]   P. C. Wright. The behavior and ecology of the owl monkey. In J. F. Baer, R. E. Weller, and I. Kakoma, editors, Aotus: The owl monkey, chapter 3, pages 97–112. Academic Press, 1994.

[303]   P. C. Wright. Night watch on the Amazon. Nat. Hist., 103:44–51, 1994.

[304]   P. C. Wright. Behavioral and ecological comparisons of Neotropical and Malagasy primates. In W. G. Kinzey, editor, New World Primates, chapter 8, pages 127–141. Aldine de Gruyter, 1997.

[305]   H. M. H. Wu, W. G. Holmes, S. R. Medina, and G. P. Sackett. Kin preference in infant Macaca nemestrina. Nature, 285:225–227, 1980.

[306]   T. E. Ziegler, W. E. Bridson, C. T. Snowdon, and S. Eman. Urinary gonadotropin and estrogen excretion during the postpartum estrus, conception, and pregnancy in the cotton-top tamarin (Saguinus oedipus oedipus). Am. J. Primat., 12:127–140, 1987.

[307]   L. Zukowsky. Zur Haltung und Pflege einiger Neuweltaffen. D. Zool. Garten (NF), 12:92–110, 1940.

Impressum/Kontakt