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Your search:
Author = Dittus, W
Limited to:National Zoological Park
Resulted in: 56 items


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Dittus, Wolfgang P. J. 2013. Arboreal adaptations of body fat in wild toque macaques (Macaca sinica) and the evolution of adiposity in primates. American Journal of Physical Anthropology, 152(3): 333-344. doi:10.1002/ajpa.22351

Dittus, Wolfgang P. J. 2013. Subspecies of Sri Lankan mammals as units of biodiversity conservation, with special reference to primates. Ceylon Journal of Science (Bio.Sci.), 42(2): 1-27.

Goto, Kohta, Fukuda, Kenji, Senda, Akitsugu, Saito, Tadao, Kimura, Kazumasa, Glander, Kenneth E., Hinde, Katie, Dittus, Wolfgang P. J., Milligan, Lauren A., Power, Michael L., Oftedal, Olav T. and Urashima, Tadasu. 2010. Chemical characterization of oligosaccharides in the milk of six species of New and Old world monkeys. Glycoconjugate journal, 27: 703-715.

Milligan, Lauren A., Rapoport, Stanley I., Cranfield, Michael R., Dittus, Wolfgang P. J., Glander, Kenneth E., Oftedal, Olav T., Power, Michael L., Whittier, Christopher A. and Bazinet, Richard P. 2008. Fatty acid composition of wild anthropoid primate milks. Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology, 149: 74-82.

Ekanayake, D. K., Welch, D. M., Kieft, R., Hajduk, S. and Dittus, Wolfgang P. J. 2007. Transmission Dynamics of Cryptosporidium Infection in a Natural Population of Non-Human Primates at Polonnaruwa, Sri Lanka. The American Journal of Tropical Medicine and Hygiene, 77(5): 818-822.

Dittus, Wolfgang P. J. 2004. Demography: a window to social evolution. In: Thierry, B., Singh, M. and Kaumanns, W., Macaque Societies: A Model for the Study of Social Organization.. Cambridge: Cambridge University Press, pp.87-113.

Ekanayake, D. K., Rajapakse, R. P. V. J., Dubey, J. P. and Dittus, Wolfgang P. J. 2004. Seroprevalence of Toxoplasma gondii in Wild Toque Macaques (Macaca sinica) at Polonnaruwa, Sri Lanka. Journal of Parasitology, 90(4): 870-871.

Ekanayake, D. K., Rajapakse, R. P. V. J., Rajapaksha, W. R. A. K. J. S. and Dittus, Wolfgang P. J. 2004. Detection of apicomplexan infection among Toxoplasma gondii seropositive monkey carcasses from Polonnaruwa, Sri Lanka. In: 56th Annual Convention and Scientific Sessions of the Sri Lanka Veterinary Association. pp.

Ekanayake, D. K., Horadagoda, N. U., Sanjeevani, G. K. M., Arulkanthan, A., Gunatilake, K. A. S. and Dittus, Wolfgang P. J. 2003. Hematology of a natural population of toque macaques (Macaca sinica) at Polonnaruwa, Sri Lanka. American Journal of Primatology, 61: 13-26.

Dittus, Wolfgang P. J., Diaz, T. and Goonatillake, K. S. S. 2001. Primate conservation and the management of people at the Polonnaruwa Nature Sanctuary, Sri Lanka. .

Dittus, Wolfgang P. J., Keane, B. and Melnick, D. J. 2001. The effects of age and rank on the reproductive success of wild male Toque macaques (Macaca sinica) at Polonnaruwa, Sri Lanka. .

De Silva, A. M., Dittus, Wolfgang P. J., Amerasinghe, P. H. and Amerasinghe, F. P. 1999. Serologic evidence for an epizootic dengue virus infecting toque macaques (Macaca sinica) at Polonnruwa, Sri Lanka. The American Journal of Tropical Medicine and Hygiene, 60: 300-306.

Dittus, Wolfgang P. J. 1998. Birth sex ratios in toque macaques and other mammals: integrating the effects of maternal condition and competition. Behavioral Ecology and Sociobiology, 44: 149-160.

Keane, B., Dittus, Wolfgang P. J. and Melnick, D. J. 1997. Paternity assessment in wild groups of toque macaques Macaca sinica at Polonnaruwa, Sri Lanka using molecular markers. Molecular Ecology, 6: 267-282.

Kohn, L. A. P., Phillips-Conroy, J. E. and Dittus, Wolfgang P. J. 1996. Inheritance of dental dimensions in toque macaques (Macaca sinica). American Society of Primatology.

Loew, S. S., Fleischer, Robert C. and Dittus, Wolfgang P. J. 1996. Male care in wild toque macaques. American Society of Primatology.

Perez-Sweeney, B. M., Sangchantr, S., Morales, J. C., Dittus, Wolfgang P. J. and Melnick, D. J. 1996. Matrilineal relationships among social groups of toque macaques as revealed by variation in the mtDNA D-loop region. American Society of Primatology.

Dittus, Wolfgang P. J. and Baker, A. 1995. Behavior in relation to wildlife management: rationale and techniques. In: Berwick, S. H. and Saharia, V. B., The Development of International Principles and Practices of Wildlife Research and Management: Asian and American Approaches. Delhi: Oxford University Press, pp.295-323.

Hoelzer, G. A., Dittus, Wolfgang P. J., Ashley, M. V. and Melnick, D. M. 1994. The local distribution of highly divergent mitochondrial DNA haplotypes in toque macaques (Macaca sinica) at Polonnaruwa, Sri Lanka. Molecular Ecology, 3: 451-458.

Peiris, J. S. M., Dittus, Wolfgang P. J. and Ratnayake, C. B. 1993. Sereoepidemiology of dengue and other arboviruses in a natural population of toque macaques (Macaca sinica) at Polonnaruwa, Sri Lanka. Journal of medical primatology, 22: 240-245.

Cheverud, J. M. and Dittus, Wolfgang P. J. 1992. Primate Population Studies at Polonnaruwa. II. Heritability of body measurements in a natural population of toque macaques (Macaca sinica). American Journal of Primatology, 27: 145-156.

Cheverud, J. M., Dittus, Wolfgang P. J. and Wilson, P. 1992. Primate Population Studies at Polonnaruwa. III. Somatometric growth in a natural population of toque macaques (Macaca sinica). Journal of Human Evolution, 23: 51-77.

Dittus, Wolfgang P. J. 1992. "Book review of Primate Responses to Environmental Change by Hilary O. Box". The Quarterly Review of Biology. 67: pp.547

Hoelzer, G. A., Dittus, Wolfgang P. J. and Melnick, D. 1992. Female philopatry and the local distribution of mitochondrial DNA haplotypes in the toque macaque. American Zoologist, 31: 4

Dewit, I., Dittus, Wolfgang P. J., Vercruysse, J., Harris, E. A. and Gibson, D. I. 1991. Gastro-intestinal helminths in n natural population of Macaca sinica and Presbytis spp. at Polonnaruwa, Sri Lanka. Primates, 32: 391-395.

Dittus, Wolfgang P. J. and Ratnayeke, S. M. 1989. Care for the injured: a benefit of group life in toque macaques. .

Dittus, Wolfgang P. J. and Ratnayeke, S. M. 1989. Individual and social behavioral responses to injury in wild toque macaques (Macaca sinica). International Journal of Primatology, 10: 215-234.

Ratnayeke, A. and Dittus, Wolfgang P. J. 1989. Observation of a birth among wild toque macaques (Macaca sinica). International Journal of Primatology, 10: 235-242.

Dittus, Wolfgang P. J. 1988. An analysis of toque macaque cohesion calls from an ecological perspective. In: Todt, D., Goedeking, P. and Symmes, D., Primate Vocal Communication. Berlin: Springer-Verlag, pp.32-50.

Dittus, Wolfgang P. J. 1988. Group fission among wild toque macaques (Macaca sinica) as a consequence of female resource competition and environmental stress. Animal Behaviour, 36: 1626-1645.

Dittus, Wolfgang P. J. 1987. Book review of Use of time and resources by provisioned troops of monkeys by J.E. Fa. Ethology, 76: 172

Dittus, Wolfgang P. J. 1987. Book review of An ecological and behavioral study of the pigtailed macaque by J.O. Caldecott. Ethology, 76: 171-172.

Dittus, Wolfgang P. J. 1987. Group fusion among wild toque macaques: an extreme case of inter-group resource competition. Behaviour, 100(100): 247-291.

Dittus, Wolfgang P. J. and Baker, A. 1987. Investment in sons and daughters by female toque macaques (Macaca sinica). .

Dittus, Wolfgang P. J. 1986. "Population and conservation status of Sri Lankan primates". Primate Report. 14: pp.165

Dittus, Wolfgang P. J. 1986. "Group fusion among wild toque macaques: sex differences in its effects on long-term fitness". Primate Report. 14: pp.114

Dittus, Wolfgang P. J. 1986. Competition for food and its effects on the energy budgets and fitnesses of primate individuals and groups. .

Dittus, Wolfgang P. J. 1986. "Social evolution among wild macaques". Zoogoer. 15: pp.20

Dittus, Wolfgang P. J. 1986. Sex differences in fitness following a group take-over among Toque macaques: testing models of social evolution. Behavioral Ecology and Sociobiology, 19: 257-266.

Dittus, Wolfgang P. J. 1985. The influence of leaf-monkeys on their feeding trees in a cyclone disturbed environment. Biotropica, 17: 100-106.

Dittus, Wolfgang P. J. 1985. The influence of cyclones on the dry evergreen forest of Sri Lanka. Biotropica, 17: 1-14.

Dittus, Wolfgang P. J. 1985. The meaning of primate signals (book review). Zeitschrift fur Tierpsychologie, : 000

Dittus, Wolfgang P. J. 1984. A study of social evolution: the influence of environment, behavior and kinship on the demography of a population of toque monkeys. National Geographic Society Research Reports, 16: 171-182.

Dittus, Wolfgang P. J. 1984. Toque macaque food calls: semantic communication concerning food distribution in the environment. Animal Behaviour, 32: 470-477.

Dittus, Wolfgang P. J. 1982. Macaque food calls: evolution of an altruistic semantic signals. International Journal of Primatology, 3: 276

Dittus, Wolfgang P. J. 1982. Population regulation: the effects of severe environmental changes on the demography and behavior of wild toque macaques. Internationl Journal of Primatology, 3: 276

Dittus, Wolfgang P. J. 1982. Social behavior in primates (book review). Zeitschrift fur Tierpsychologie, : 000

Dittus, Wolfgang P. J. 1981. "Techniques for the Study of Primate Population Ecology". Washington D. C.: National Academy Press, 81-175.

Dittus, Wolfgang P. J. and Thorington, Richard W., Jr. 1981. Techniques for aging and sexing primates. In: Populations,Subcommittee on Conservation of Natural Primate, Techniques for the Study of Primate Population Ecology. Washington D. C.: National Academy Press, pp.81-134.

Dittus, Wolfgang P. J. 1980. The social regulation of primate populations: a synthesis. In: Lindburg, Donald G., The Macaques: Studies in Ecology, Behavior and Evolution. New York, NY: Van Nostrand Reinhold Co., pp.263-286.

Dittus, Wolfgang P. J. 1980. Primate social evolution as reflected by socio-demographic relationships. Antropologia Contemporanea, 3: 191-192.

Dittus, Wolfgang P. J. 1979. The evolution of behaviors regulating density and age-specific sex ratios in a primate population. Behaviour, 69(3): 265-302.

Dittus, Wolfgang P. J. 1977. The Ecology of a Semi-Evergreen Forest Community in Sri Lanka. Biotropica, 9(4): 268-286.

Dittus, Wolfgang P. J. 1977. The social regulation of population density and age-sex distribution in the toque monkey. Behaviour, 63(3-4): 281-322.

Dittus, Wolfgang P. J. 1976. Rain Forest Primates. Science (New York, N.Y.), 191(4233): 1257-1258.

Dittus, Wolfgang P. J. 1975. Population dynamics of the toque monkey, Macaca sinica. In: Tuttle, Russell H., Socioecology and Psychology of Primates. The Hague: Mouton, pp.125-151.

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