The Gibbon Network

Gibbon-Related Publications: Archive Year 2001

This list of publications is presented in alphabetical order. Formatting of references largely follows that used in the International Journal of Primatology. If you know any references which should be included in this list, please send an e-mail to the webmaster.

Ahmed, A. (2001). Illegal trade, and utilization of primates in India. ENVIS Bulletin: Wildlife and Protected Areas (Non-human primates of India, A.K. Gupta, ed.) 1(1): 177-184. [Available from http://www.wii.gov.in]

Ahsan, M.F. (2001). Socio-ecology of the hoolock gibbon (Hylobates hoolock) in two forests of Bangladesh. In Chicago Zoological Society (ed.), The apes: Challenges for the 21st century. Brookfield Zoo, May 10-13, 2000, Conference Proceedings, Chicago Zoological Society, Brookfield, Illinois, U.S.A., pp. 286-299.

Anonymous (2001). Great ape conservation fund. Oryx 35 (2): 174.

Anonymous (2001). Great ape conservation act of 2000. Asian Primates 7 (3-4): 28-29.

Anonymous (2001). Meet Palu-Palu! IPPL (International Primate Protection League) Newsletter 28 (2, August 2001): 2.

Anonymous (2001). "Nature's Beckon" protests gibbon killing. IPPL (Int. Primate Protection League) News 28(1, April 2001): 17.

Anonymous (2001). Primate taxonomy workshop. Asian Primates 7 (3-4): 22-23.

Anonymous (2001). The apes: Challenges for the 21st century. Asian Primates 7 (3-4): 23-25.

Anonymous (2001). IPPL adopts rescued gibbon. IPPL (Int. Primate Protection League) News 28 (3, Nov. 2001): 18.

Anonymous (2001). Holiday appeal for overseas sanctuaries. IPPL (Int. Primate Protection League) News 28 (3, Nov. 2001): 11-12.

Andayani, N., Morales, J.C., Forstner, M.R.J., Supriatna, J., and Melnick, D.J. (2001). Genetic variability in mtDNA of the silvery gibbon: Implications for the conservation of a critically endangered species. Conservation Biology 15: 770-775.

Asquith, N.M. (2001). Misdirections in conservation biology. Conservation Biology 15: 345-352.

Bachmann, J., and Sodaro, C. (2001). Birth management of a pair of white-cheeked gibbons at Brookfield Zoo. In Chicago Zoological Society (ed.), The apes: Challenges for the 21st century. Brookfield Zoo, May 10-13, 2000, Conference Proceedings, Chicago Zoological Society, Brookfield, Illinois, U.S.A., pp. 96-98.

Bartlett, T.Q. (2001). Extra-group copulations by sub-adult gibbons: Implications for understanding gibbon social organization. American Journal of Physical Anthropology Supplement 32: 36 (Abstract only).

Beck, R. (2001). A mixed exhibit of orangutans and gibbons at the Durrell Wildlife Conservation Trust. In Chicago Zoological Society (ed.), The apes: Challenges for the 21st century. Brookfield Zoo, May 10-13, 2000, Conference Proceedings, Chicago Zoological Society, Brookfield, Illinois, U.S.A., pp. 63-66.

Bertram, J.E., and Chang, Y.H. (2001). Mechanical energy oscillations of two brachiation gaits: Measurement and simulation. American Journal of Physical Anthropology 115: 319-326.

Bottorff, C. (2001). Rare gibbons latest zoo attraction. The Tennessean April 11, 2001:
http://www.tennessean.com/local/archives/01/04/04086676.shtml?

Brockelman, W.Y., Kanwuttanakid, C., Vimuktayon, P., and Kunsakorn, P. (2001). Diet and seed dispersal by gibbons Hylobates lar in Thailand. In The XVIIIth congress of the International Primatological Society, Adelaide 7-12 January 2001: Primates in the new millennium. Abstracts and programme, Adelaide, South Australia, pp. 417 (Abstract only).

Brule, A. (2001). The Kalaweit Gibbon Protection Program. IPPL (International Primate Protection League) Newsletter 28 (2, August 2001): 15-16.

Chivers, D.J. (2001). The swinging singing apes: Fighting for food and family in far-east forests. In Chicago Zoological Society (ed.), The apes: Challenges for the 21st century. Brookfield Zoo, May 10-13, 2000, Conference Proceedings, Chicago Zoological Society, Brookfield, Illinois, U.S.A., pp. 1-28.

Choudhury, A. (2001). Primates in northeast India: An overview of their distribution and conservation status. ENVIS Bulletin: Wildlife and Protected Areas (Non-human primates of India, A.K. Gupta, ed.) 1(1): 92-101. [Available from
http://www.wii.gov.in]

Choudhury, A. (2001). New primate sanctuary in Assam, India. Asian Primates 7 (3-4): 18-19.

Dallmann, R., and Geissmann, T. (2001). Different levels of variability in the female song of wild silvery gibbons Hylobates moloch. In The XVIIIth congress of the International Primatological Society, Adelaide 7-12 January 2001: Primates in the new millennium. Abstracts and programme, Adelaide, South Australia, pp. 127 (Abstract only).
The text of this abstract is available
here.

Dallmann R., and Geissmann, T. (2001). Different levels of variability in the female song of wild silvery gibbons (Hylobates moloch). Behaviour 138: 629-648.
The full text of this paper is available
here.

Dallmann, R., and Geissmann, T. (2001). Individuality in the female songs of wild silvery gibbons (Hylobates moloch) on Java, Indonesia. Contributions to Zoology 70: 41-50.
The fullt text of this paper is available at
http://logos.uba.uva.nl/cgi-bin/t/text/text-idx?c=ctz;sid=c389c48257ee7267241be586c0072d8c;rgn=main;idno=m7001a03;view=text

Del Pero, M., Boniotto, M., Zuccon, D., Crovella, S., and Amoroso, A. (2001). Evolution of ß-defensin 1 gene in primates. Folia Primatologica 72: 146 (Abstract only).

Dixson, A., and Anderson, M. (2001). Sexual selection and the comparative anatomy of reproduction in monkeys, apes, and human beings. Annual Review of Sex Research 12: 121-144.

Fauth, C., and Speicher, M.R. (2001). Classifying by colors: FISH-based genome analysis. Cytogenetics and Cell Genetetics 93: 1-10.

Förderer, T. (2001). Im Schatten der Menschenaffen: Gibbons in Südostasien sind nur unzureichend geschützt. Süddeutsche Zeitung 2001, Nr. 174 (31 July), p. V2/8 (German text).

Francis, C.M. (2001). A photographic guide to mammals of South-east Asia, New Holland Publishers, London. 128 pp.

Geissmann, T. (2001). A model of inheritance in gibbon songs. In The XVIIIth congress of the International Primatological Society, Adelaide 7-12 January 2001: Primates in the new millennium. Abstracts and programme, Adelaide, South Australia, pp. 126 (Abstract only).
The text of this abstract is available
here.

Geissmann, T. (2001). TiHo-Forscher warnt: Heimliches Aussterben der Kleinen Menschenaffen in Indochina. TiHo-Anzeiger (Tierärztliche Hochschule Hannover) 30 (6): 8. (German text).
The full text of this paper is available
here.

Geissmann, T. (2001). A reassessment of the evolution and adaptive radiation of gibbons. In Chicago Zoological Society (ed.), The apes: Challenges for the 21st century. Brookfield Zoo, May 10-13, 2000, Conference Proceedings, Chicago Zoological Society, Brookfield, Illinois, U.S.A., pp. 361 (Abstract only).
The text of this abstract is available
here.

Geissmann, T., Nguyen Xuan Dang, Lormée N., and Momberg, F. (2001). Conservation status of gibbons in Vietnam. Folia Primatologica 72: 161 (Abstract only).
The text of this abstract is available
here.

Geissmann, T., and Vu Ngoc Thanh (2001). Preliminary results of a primate survey in northeastern Vietnam, with special reference to gibbons. Asian Primates 7 (3-4): 0-4.
The full text of this paper is available
here.

Gönner, C. (2001). Muster und Strategien der Ressourcennutzung: Eine Fallstudie aus einem Dayak Benuaq Dorf in Ost-Kalimantan, Indonesien. Forstwissenschaftliche Beiträge der Professur Forstpolitik und Forstökonomie, Nr. 24, ETH (Eidgenössische Technische Hochschule), Zürich. xii+268 pp.

Guatelli-Steinberg, D., and Dirks, W. (2001). The timing of hypoplastic events in gibbons. American Journal of Physical Anthropology Supplement 32: 73-74 (Abstract only).

Gupta, A.K. (2001). Non-human primates of India: An introduction. ENVIS Bulletin: Wildlife and Protected Areas (Non-human primates of India, A.K. Gupta, ed.) 1(1): 1-29. [Available from
http://www.wii.gov.in]

Gupta, A.K. (2001). Status of primates in Tripura. ENVIS Bulletin: Wildlife and Protected Areas (Non-human primates of India, A.K. Gupta, ed.) 1(1): 127-135. [Available from
http://www.wii.gov.in]

Harcourt, A.H., and Schwartz, M.W. (2001). Primate evolution: a biology of holocene extinction and survival on the southeast Asian Sunda Shelf islands. American Journal of Physical Anthropology 114: 4-17.

Hardcastle, J., and Giang A De (2001). [The hunter and the orphan gibbon infant] (Vietnamese text), Fauna, and Flora International - Indochina Programme, Hanoi, Vietnam, 32 pp.

Hardcastle, J., Mai Dang Khoa, and Giang A De (2001). Black and white: Community-based initiatives to protect the western black-crested gibbon by the White H'mong people of the Che Tao forest. Unpublished report, Fauna, and Flora International, Indochina Programme Office, Hanoi.

Hasegawa, Y., Tanahashi, H., and Fukuda, T. (2001). Behavior coordination of brachiation robot based on behavior phase shift. In, Proceedings of the IEEE/RSI international conference on intelligent robots and systems, 2001, Maui, Hawaii, U.S.A., 29 Oct. - 3 Nov. 2001, vol. 1, pp. 526-531.

Hasegawa, Y., Tanahashi, H., and Fukuda, T. (2001). Continuous locomotion of brachiation robot by behavior phase shift. In, Joint 9th IFSA world congress and 20th NAFIPS international conference, 25-28 July 2001, vol. 4, pp. 2411-2416.

Hewitt, G., and MacLarnon, A. (2001). The role of airsacs in primates: A new hypothesis. Folia Primatologica 72: 359 (Abstract only).

Hoang Hoe, Le Van Lanh, Nguyen Ba Thu, Nguyen Duc Khang, and Vu Van Dung (Ed.). (2001). National Parks of Vietnam, Agricultural Publishing House, Hanoi, 152 pp.

Iskandar, E. (2001). Population survey of the Javan gibbon (Hylobates moloch) at the Ujung Kulon National Park, West Java, Indonesia. ASP (American Society of Primatology) Bulletin 25(3): 9.

Isler, K. (2001). 3D-Bewegungsanalyse bei Menschenaffen. Bulletin der Schweizerischen Gesellschaft für Anthropologie / Bulletin de la Société Suisse d'Anthropologie 7(1): 35-38 (German text).

Jiang, X., and Wang, Y. (2001). Black-crested gibbons (Hylobates concolor), its endangered situation and conservation strategy in Wuliang Mountain, Yunnan, China. In The XVIIIth congress of the International Primatological Society, Adelaide 7-12 January 2001: Primates in the new millennium. Abstracts and programme, Adelaide, South Australia, pp. 136 (Abstract only).

Kadoorie Farm and Botanic Garden (2001). Report of rapid biodiversity assessments at Bawangling National Nature Reserve and Wangxia limestone forest, western Hainan, 3 to 8 April 1998. South China Forest Biodiversity Survey Report Series No. 2, Kadoorie Farm and Botanic Garden, Hong Kong SAR, ii + 33 pp.

Le Trong Dat, Trinh Dinh Hoang, Tallents, L., and Luong Van Hao (2001). Report on the third survey for western black crested gibbon Nomascus concolor and other animals in Che Tao commune, Mu Cang Chai district, Yen Bai province, Fauna, and Flora International Indochina Programm, Hanoi, 13 pp.

Malone, N.M., Purnama, A.R., Wedana, M., and Fuentes, A. (2001). Assessing the trade of primates in Indonesia and the collection of noninvasively obtained cytogenetic evidence. American Journal of Physical Anthropology Supplement 32: 101 (Abstract only).

McConkey, K., and Bricknell, S. (2001). Fruit selection by hybrid gibbons (Hylobates agilis x H. muelleri) in the rainforests of Borneo. In The XVIIIth congress of the International Primatological Society, Adelaide 7-12 January 2001: Primates in the new millennium. Abstracts and programme, Adelaide, South Australia, pp. 46 (Abstract only).

McGreal, S. (2001). Arun Rangsi starts his 20th year with IPPL! IPPL (Int. Primate Protection League) News 28 (1, April 2001): 3-4.

Milius, S. (2001). Face the music: Why we are such a musical species - and does it matter? Natural History 110(10): 48-57.

Mootnick, A.R. (2001). Captive breeding strategies used for gibbons at the International Center for Gibbon Studies. In Chicago Zoological Society (ed.), The apes: Challenges for the 21st century. Brookfield Zoo, May 10-13, 2000, Conference Proceedings, Chicago Zoological Society, Brookfield, Illinois, U.S.A., pp. 361 (Abstract only).

Moyà-Solà, S., Köhler, M., and Alba, D. M. (2001). Egarapithecus narcisoi, a new genus of Pliopithecidae (Primates, Catarrhini) from the Late Miocene of Spain. American Journal of Physical Anthropology 114: 312-324.

Mukherjee, R.P. (2001). Status and conservation of non-human primates in India. ENVIS Bulletin: Wildlife and Protected Areas (Non-human primates of India, A.K. Gupta, ed.) 1(1): 136-137. [Available from
http://www.wii.gov.in]

Myowa-Yamakoshi, M., and Tomonaga, M. (2001). Perceiving eye gaze in an infant gibbon (Hylobates agilis). Psychologia 44 (1): 24-30.

Nadler, T. (2001). Endangered Primate Rescue Center: Report 2000. EPRC (Endangered Primate Rescue Center, Cuc Phuong National Park, Vietnam) Newsletter 6: 3-12.

Neath, N., Tan Setha, Pech Bunnat, and Stuart, B. (2001). A wildlife survey of Boko National Park, Cambodia. The Wildlife Conservation Society (WCS), Cambodian Program, Phnom Penh, Cambodia, xx + 64 pp.

Ngo Van Tri, and Trinh Viet Cuong (2001). Observation on primates in Cu Jut district, Dak Lak province in the central highlands of southern Viet Nam. In The XVIIIth congress of the International Primatological Society, Adelaide 7-12 January 2001: Primates in the new millennium. Abstracts and programme, Adelaide, South Australia, pp. 75 (Abstract only).

Nguyen Xuan Dang, and Momberg, F. (2001). Current status and conservation of the black gibbon in Vietnam. In The XVIIIth congress of the International Primatological Society, Adelaide 7-12 January 2001: Primates in the new millennium. Abstracts and programme, Adelaide, South Australia, pp. 77 (Abstract only).

Nie, W., Rens, W., Wang, J., and Yang, F. (2001). Conserved chromosome segments in Hylobates hoolock revealed by human and H. leucogenys paint probes. Cytogenetics and Cell Genetics 92: 248-253.

Nijman, V. (2001). Forest (and) primates: Conservation and ecology of the endemic primates of Java and Borneo. Tropenbos-Kalimantan Series Vol. 5, Tropenbos International, Wageningen, The Netherlands. xii + 232 pp. ISBN 90-5113-052-X, ISSN 1566-6522.

Nijman, V. (2001). Effect of behavioural changes due to habitat disturbance on density estimation in rain forest vertebrates, as illustrated by gibbons (Hylobatidae). In Hillegers, P.J.M., and de Iongh, H.H. (Eds.), The balance between biodiversity conservation and sustainable use of tropical rain forests (pp. 217-225). Wageningen: Tropenbos.

Nijman, V., and Geissmann, T. (2001). Calling behaviour of male silvery gibbons on Java, Indonesia. In The XVIIIth congress of the International Primatological Society, Adelaide 7-12 January 2001: Primates in the new millennium. Abstracts and programme, Adelaide, South Australia, pp. 128 (Abstract only).
The text of this abstract is available
here.

Noda, R., Kim, C. G., Takenaka, O., Ferrell, R. E., Tanoue, T., Hayasaka, I., Ueda, S., Ishida, T., and Saitou, N. (2001). Mitochondrial 16S rRNA sequence diversity of hominoids. Journal of Heredity 92: 490-496.

Oka, T., and Takenaka, O. (2001). Wild gibbons' parentage tested by non-invasive DNA sampling and PCR-amplified polymorphic microsatellites. Primates 42: 67-73.

Pham Nhat, Nguyen Xuan Dang, and Polet, G. (2001). Field guide to the key mammal species of Cat Tien National Park. WWF - Cat Tien National Park Conservation Project and Fauna, and Flora International - Indochina Programme, Hanoi, Vietnam, 150 pp.

Pruett-Jones, M., Sheeran, L.K., and Varsik, A. (compilers) (2001). Report on gibbon conservation workshop. In Chicago Zoological Society (ed.), The apes: Challenges for the 21st century. Brookfield Zoo, May 10-13, 2000, Conference Proceedings, Chicago Zoological Society, Brookfield, Illinois, U.S.A., pp. 349-350.

Redmond, J.C.J. (2001). Behavioral lateralization and cerebral asymmetries in Hylobates syndactylus. Dissertation Abstracts International A61 (7): 2793.

Redmond, J.C.J. (2001). Cerebral asymmetries on the endocasts of Hylobates syndactylus. American Journal of Physical Anthropology Supplement 32: 123 (Abstract only).

Reichard, U. (2001). Social grouping patterns in wild gibbons. In The XVIIIth congress of the International Primatological Society, Adelaide 7-12 January 2001: Primates in the new millennium. Abstracts and programme, Adelaide, South Australia, pp. 125 (Abstract only).

Rens, W., Yang, F., O'Brien, P. C., Solanky, N., and Ferguson-Smith, M.A. (2001). A classification efficiency test of spectral karyotyping and multiplex fluorescence in situ hybridization: identification of chromosome homologies between Homo sapiens and Hylobates leucogenys. Genes Chromosomes Cancer 31 (1): 65-74.

Richards, B., Owen, L., Mullins-Cordier, S., and Sellin, R. (2001). The lesser-known ape: Husbandry training with gibbons and siemangs. In Chicago Zoological Society (ed.), The apes: Challenges for the 21st century. Brookfield Zoo, May 10-13, 2000, Conference Proceedings, Chicago Zoological Society, Brookfield, Illinois, U.S.A., pp. 107-111.

Roos, C., and Geissmann, T. (2001). Molecular phylogeny of the major hylobatid divisions. Molecular Phylogenetics and Evolution 19: 486-494.
The full text of this paper is available
here.

Sati, J.P., and Alfred, J.R.B. (2001). Hoolock gibbon (Bunopithecus hoolock). ENVIS Bulletin: Wildlife and Protected Areas (Non-human primates of India, A.K. Gupta, ed.) 1(1): 60-67. [Available from
http://www.wii.gov.in]

Savini, T. (2001). A methodology to estimate the home range quality of white-handed gibbon (Hylobates lar). Folia Primatologica 72: 141-142 (Abstract only).

Seng, T. (2001). Surveys for tigers and other large mammals in Virachey National Park (2000-2001). WWF Cambodia Conservation Program, Phnom Penh, Cambodia, 92 pp.

Singh, D.N. (2001). Status and distribution of primates in Arunachal Pradesh. ENVIS Bulletin: Wildlife and Protected Areas (Non-human primates of India, A.K. Gupta, ed.) 1(1): 113-119. [Available from http://www.wii.gov.in]

Sinha, P.R., and Chakraborty, B. (2001). Status and captive primates in Indian zoos. ENVIS Bulletin: Wildlife and Protected Areas (Non-human primates of India, A.K. Gupta, ed.) 1(1): 152-164. [Available from
http://www.wii.gov.in]

Southwick, C.H., and Siddiqui, M.F. (2001). Status, conservation and management of primates in India. ENVIS Bulletin: Wildlife and Protected Areas (Non-human primates of India, A.K. Gupta, ed.) 1(1): 81-91. [Available from
http://www.wii.gov.in]

Smith, J.D. (ed.) (2001). Biodiversity, the life of Cambodia - Cambodian Biodiversity Status Report 2001. Cambodian Biodiversity Enabling Activity, Phnom Penh, Cambodia, viii + 244 pp.

Srivastava, A., and Mohnot, S.M. (2001). Distribution, conservation status and priorities for primates in northeast India. ENVIS Bulletin: Wildlife and Protected Areas (Non-human primates of India, A.K. Gupta, ed.) 1(1): 102-108. [Available from http://www.wii.gov.in]

Stern, J.T.J., and Larson, S.G. (2001). Telemetered electromyography of the supinators and pronators of the forearm in gibbons and chimpanzees: Implications for the fundamental positional adaptation of hominoids. American Journal of Physical Anthropology 115: 253-268.

Stout, K.L. (2001). Anatomy and function of the hylobatid thumb and index finger region. American Journal of Physical Anthropology Supplement 32: 143-144 (Abstract only).

Supriatna, J. (2001). Current status and conservation strategy for Javan gibbon (Hylobates moloch). In Chicago Zoological Society (ed.), The apes: Challenges for the 21st century. Brookfield Zoo, May 10-13, 2000, Conference Proceedings, Chicago Zoological Society, Brookfield, Illinois, U.S.A., pp. 361 (Abstract only).

Suzuki, J., Ishida, T., Ohkura, S., Udono, T., Hayasaka, I., and Asaithamkul, V. (2001). Plasma IGF-1 levels in the great and lesser apes. In The XVIIIth congress of the International Primatological Society, Adelaide 7-12 January 2001: Primates in the new millennium. Abstracts and programme, Adelaide, South Australia, pp. 485 (Abstract only).

Tallents, L., Geissmann, T., Trinh Dinh Hoang, and La Quang Trung (2001). Survey for crested gibbons (genus Nomascus) in Bach Ma National Park, Viet Nam, April 2001. Unpublished survey report, Fauna, and Flora International, Indochina Programme Office, Hanoi. 5 pp.
The full text of this paper is available
here.

Tallents, L., Le Trong Dat, Luong Van Hao, La Quang Trung, and Trinh Dinh Hoang (2001). Muong La district, Son La province, January 2001: A survey for western black crested gibbon in Nam Pam, Hua Trai and Ngoc Chien communes, Che Tao-Nam Pam forest, Fauna, and Flora International, Indochina Programme Office, Hanoi. 14 pp.

Thornton, S.M., Walker, S., and Zuckerman, J.N. (2001). Management of hepatitis B virus infections in two gibbons and a western lowland gorilla in a zoological collection. Vet. Record 149(4): 113-115.

Timmins, R.J., and Ou Ratanak (2001). The importance of Phnom Prich Wildlife Sanctuary and adjacent areas for the conservation of tigers and other biodiversity. WWF Cambodia Conservation Program, Phnom Penh, Cambodia.

Tordoff, A.W., Le Trong Dat, and Hardcastle, J. (2001). A rapid biodiversity survey of Che Tao commune, Mu Cang Chai district, Yen Bai province, Vietnam. Hanoi: BirdLife International Vietnam Programme, and Fauna, and Flora International Indochina Programm, 17 pp.

Tougard, C. (2001). Biogeography and migration routes of large mammal faunas in South-East Asia during the Late Middle Pleistocene: Focus on the fossil and extant faunas from Thailand. Palaeogeography, Palaeoclimatology, Palaeoecology 168(3-4): 337-358.

Van Andel, S. (2001). Een route van rehabilitatie. Ecologie & Ontwikkeling (Nederlands Comite voor IUCN) 9(3): 25-26 (Dutch text).

van den Bergh, G. D., de Vos, J., and Sondaar, P. Y. (2001). The Late Quaternary palaeogeography of mammal evolution in the Indonesian Archipelago. Palaeogeography, Palaeaoclimatology, Palaeoecology 171: 385-408.

Walker, S., and Molur, S. (2001). Problems of prioritizing primate species for captive breeding in Indian zoos. ENVIS Bulletin: Wildlife and Protected Areas (Non-human primates of India, A.K. Gupta, ed.) 1(1): 138-151. [Available from http://www.wii.gov.in]

Walston, J., Davidson, P., and Soriyun, M. (2001). A wildlife survey of southern Mondulkiri province, Cambodia. The Wildlife Conservation Society (WCS), Cambodian Program, Phnom Penh, Cambodia, xxiv + 80 pp.

Ware, D. (2001). Gibbon rehabilitation and reintroduction: The problems along the road before use as a viable conservation tool. In Chicago Zoological Society (ed.), The apes: Challenges for the 21st century. Brookfield Zoo, May 10-13, 2000, Conference Proceedings, Chicago Zoological Society, Brookfield, Illinois, U.S.A., pp. 259-261.



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