Observations on a breeding group of Pygmy marmosets at Skansen Aquarium

Larsson, Hans-Ove; Hagelin, Margareta; Hjern, Magnus

doi:10.1111/j.1748-1090.1982.tb02013.x

Cited by 4 publications

(2 citation statements)

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“…This compares well with our colony data from 41 litters of 75.6% twins, 19.5% singletons, and 4.9% triplet births. Interbirth intervals for our colony varied considerably but were within the range reported by others [Larsson et al, 1982;Christen, 1968Christen, , 1974Dorcey & Hagquist, 19781. Only two interbirth intervals were extremely large, 402 and 746 days, skewing the data toward a larger mean.…”

Section: Discussionsupporting

confidence: 85%

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Reproductive performance and excretion of urinary estrogens and gonadotropins in the female pygmy marmoset (Cebuella pygmaea)

Ziegler

Snowdon

Bridson

1990

American J Primatol

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By retrospective review of colony records and determinations of urinary hormones we have described the reproductive profile of the female pygmy marmoset (Cebuella pygmaea). The pygmy marmoset is a nonseasonal breeder and gives birth to twins 76% of the time with single births occurring 16% and triplet births 8% of the time. lnterbirth intervals ranged from 149-746 days. First births occurred to females between 24-42 months of age and 5-27 months post pairing. We measured urinary estrone, estradiol and estrone conjugates along with immunoreactive luteinizing hormone/chorionic gonadotropin (LH/CG). The postpartum LH peak occurred a mean of 15.6 days following parturition. The conception rate was 69% following the postpartum ovulation. Levels of CG rose a mean of 19 days following the LH peak in conceptive cycles and remained elevated for a mean of 76 days. Gestational length was a mean of 141.9 days from the LH peak to parturition. Only one female of the five studied displayed ovarian cycles which were a mean of 27 days in length. Estradiol was the predominant urinary estrogen, however both estrone and estradiol were excreted in extremely high concentrations. LH peaks were discrete with urinary estrogens increasing at the time of the LH peak and remaining elevated throughout the luteal phase of the cycle.

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Section: Discussionsupporting

confidence: 85%

“…Reproductive data for captive pygmy marmosets are limited. Interbirth intervals have been reported with means of 177, 196, and 160 days for individual females [Larsson et al, 1982;Christen, 1968Christen, , 1974Dorcey & Hagquist, 19781. No seasonality of births has been reported.…”

Section: Introductionmentioning

confidence: 99%

Reproductive performance and excretion of urinary estrogens and gonadotropins in the female pygmy marmoset (Cebuella pygmaea)

Ziegler

Snowdon

Bridson

1990

American J Primatol

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The criteria for successful captive propagation of endangered primates

Snowdon

1989

Zoo Biol.

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There are several criteria used for evaluating the success of captive breeding programs for endangered primates. The most stringent criterion is that animals should be maintained in captivity so that they can retain the ability to survive if they are reintroduced to the wild. Implementing the criterion means designing environments that provide analogues to the natural environment. The role of social reinforcement and observational learning in attaining behavioral competence is quite important. Thus, animals need complex social and physical environments in order to acquire the sensorimotor, social interaction, and parental care skills they need to be self-sustaining. In addition, environments should be managed to provide animals with opportunities to learn skills, foraging and predator detection skills. Research efforts must be a part of all captive breeding programs not only to improve the captive breeding environment but also to learn as much as possible about an endangered species before it becomes extinct. A variety of noninvasive research techniques are described that allow the gathering of high quality research data without compromising the breeding success of the endangered animals.Key words: captive breeding, noninvasive research, cotton-top tamarins, behavioral INTRODUCTION skills, successful reproductionA large number of studies completed over the past few years have led to predictions that much of the tropical rain forest is being destroyed at a rapid rate. An area equivalent in size to West Germany is destroyed every two years according to the conservative estimate [Office of Technology Assessment, 19841. Skorupa [ 19851 estimates that 50 % of the current rain forest in the Amazon and 25 % of the remaining forest in the Congo will be destroyed by the year 2020. All but two primate species have ranges in the tropics, and more than 50% of these species are currently in jeopardy [Wolfheim, 19831. While the preservation of tropical forest habitat is essential, we must also be realistic and acknowledge that draconian measures will be needed to preserve many species. In many cases captive propagation will be the only alternative available [Conway, 1980; Konstant and Mittermeier, 19821. It is therefore Snowdon important that we develop appropriate techniques for successful captive breeding of these species. Such captive breeding programs can serve several functions. 1. Captive animals can serve as substitutes for basic field research on population biology and social biology. If appropriately complex captive environments are developed, then it will be possible to learn as much or more about the natural behavior of a species from captivity as from studying the species in a degraded natural environment. Research on captive populations provides the opportunity to ask more subtle research questions and obtain data with greater precision. For example, many vocalizations of primates are soft intragroup vocalizations that cannot be adequately recorded in the field; they can, however, be studied in captivity [Gautie...

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Platyrrhine juvenile mortality in captivity and in the wild

Debyser

1995

International Journal of Primatology

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Observations on a breeding group of Pygmy marmosets at Skansen Aquarium

Cited by 4 publications

References 2 publications

Reproductive performance and excretion of urinary estrogens and gonadotropins in the female pygmy marmoset (Cebuella pygmaea)

Reproductive performance and excretion of urinary estrogens and gonadotropins in the female pygmy marmoset (Cebuella pygmaea)

The criteria for successful captive propagation of endangered primates

Platyrrhine juvenile mortality in captivity and in the wild

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