Deborah D. Aden Studbook Keeper Denver Zoological Gardens 2900 East 23rd Avenue Denver, CO 80205 Telephone: 303-376-4900 Fax: 303-376-4901 e-mail: pygmymarmoset@earthlink.net CONTENTS Introduction Classification 1 Scope of Studbook 1 Summary 1 Yellow-Belly and White-Belly Types 1 Population Growth 1 Description of Data Fields 2 Institution List 3 Bibliography 7 Living Population by Institution as of 31 December 2000 10 Births, Deaths, and Transfers During 2000 27 Historical Listing 37 FROM THE INTRODUCTION Classification: Historically, pygmy marmosets were not considered true marmosets and were classified in their own genera, Cebuella, within the family Callithricidae. They are currently listed with ISIS in the genera Callithrix and for the North American studbook are classified as Callithrix pygmaea. Scope of the Studbook: The first edition of the full studbook was published in September 1994. Updates have been published yearly. This studbook contains complete records for pygmy marmosets located in the United States and Canada during the calendar year 2000. It also contains a historical listing of the 584.525.317 (1426) contained in the full studbook. Summary: Between 1 January 2000 and 31 December 2000 there were 53 births, 55 deaths, and only 16 transfers between institutions. As of 31 December 2000 the population was 114.87.15 (216) at 53 institutions. The Yellow-belly and White-belly Types: Type 1 or Yellow-belly animals can be distinguished by yellowish chest and belly hair and the males have no black dots on their scrotum. Type 2 or White-belly animals have whitish chest and especially belly hair and males have clearly marked black dots on their scrotum. Generally it is easier to discriminate between type 1 and type 2 males than type 1 and type 2 females. Moreover, variation in fur color between individuals and the existence of hybrids in the population can make identification difficult. The typing information given in this studbook is only a guideline and is based solely on phenotypic evaluations of individuals. The most recent Population Management Plan for pygmy marmosets was published in October 2000. It was decided to manage the population as a single species since genetic karyotyping would be needed to accurately manage the population as two subspecies. Please see the PMP for more detailed information on this subject. Population Growth: The New World Primate Tag would like to manage pygmy marmosets in North America at a nucleus population of 100 individuals. This species potentially has a high growth rate in captivity and could be expected to increase quickly. However, the population has remained relatively stable since 1992, even decreasing slightly, since the original studbook was published. The recently published PMP is managing pygmy marmosets as a stable population and is not trying to decrease their numbers due to their genetic stability and relative popularity of this species. HOW TO OBTAIN: To borrow this document, contact Joanne Brown (brown@primate.wisc.edu), Head of Technical Services, Wisconsin Regional Primate Research Center Library and Information Service, University of Wisconsin-Madison. Fax: 1-608-263-3512
URL: http://www.primate.wisc.edu/pin/review/pygmy.html
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May 15, 2002
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