Use of Alternative Plant Resources by Common Marmosets (Callithrix jacchus) in the Semi-Arid Caatinga Scrub Forests of Northeastern Brazil

We provide the first information on the behavior of a small primate (Callithrix jacchus) inhabiting a semiarid Caatinga environment in northeastern Brazil. We observed behavioral variations in response to temperature fluctuation throughout the day. Due to the high temperatures, low precipitation, and resource scarcity in the Caatinga, as well as the lack of physiological adaptations (e.g., a highly concentrated urine and a carotid rete to cool down the brain) of these primates, we expected that the common marmosets would exhibit behavioral adjustments, such as a prolonged resting period or the use of a large home range. During the six-month period, we collected 246 hours of behavioral data of two groups (10 individuals) ofCallithrix jacchus. Most of the observed behavioral patterns were influenced by temperature fluctuation. Animals rested longer and reduced other activities, such as foraging, when temperatures were higher. Both study groups exploited home ranges of 2.21–3.26 ha, which is within the range described for common marmosets inhabiting the Atlantic Forest. Our findings confirm that common marmosets inhabiting the Caatinga adjust their behavioral patterns to cope with the high temperatures that characterize this environment and highlight their ability to survive across a wide range of different environmental conditions.

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Common marmosets Callithrix jacchus (Linnaeus, 1758) (Primates: Cebidae: Callitrichinae) in an urban mangrove: behavioral ecology and environmental influences

Boletim do Museu Paraense Emílio Goeldi Ciências Naturais ◽

10.46357/bcnaturais.v15i3.219 ◽

2020 ◽

Vol 15 (3) ◽

pp. 617-632

Author(s):

Juliana Ribeiro de Albuquerque ◽

Maria Adélia Borstelmann de Oliveira

Keyword(s):

Behavioral Ecology ◽

Human Population ◽

Common Marmoset ◽

Domestic Animals ◽

Callithrix Jacchus ◽

Northeastern Brazil ◽

Behavioral Repertoire ◽

Common Marmosets ◽

Mangrove Area ◽

The Common

The common marmoset (Callithrix jacchus) is a primate found in urban forests and in high density of human population sites, however there is insufficient informations about its behavior in mangroves. One group of marmosets was monitored in the Espaço Ciência museum, in the state of Pernambuco, Northeastern Brazil, located in a mangrove area that has been deforested for years, but has a few remaining fragments. We used scan sampling and all occurrences methods for behavioral data collection, between September 2012 and February 2013. Moving was the most frequent behavior, occupying 24.4% of the behavioral repertoire and human-provided food made up 52% of their diet. The group of marmosets interacted with people, wild and domestic animals and objects introduced by humans, such as buckets and nets for collecting organic material belonging to other research projects. While the urban environment offered conditions for group establishment in the study area, the inclusion of human foods in the diet and the relation of the marmosets with various abiotic and biotic components of the landscape endanger the health and survival, and that of other animals and people involved in the interactions.

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Supplemental Material for Personality Method Validation in Common Marmosets (Callithrix jacchus): Getting the Best of Both Worlds

Journal of Comparative Psychology ◽

10.1037/com0000188.supp ◽

2019 ◽

Keyword(s):

Method Validation ◽

Callithrix Jacchus ◽

Common Marmosets

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Laboratory housing of common marmosets (Callithrix jacchus) for virological research

Medical virology ◽

10.15610/28_2_4 ◽

2014 ◽

Vol 28 (2) ◽

pp. 48-57

Author(s):

Yu.K. Novoderzhkina ◽

◽

T.V. Gulyaeva ◽

Yu.A.-K. Khubiev ◽

I.V. Gorgeychuk ◽

...

Keyword(s):

Callithrix Jacchus ◽

Common Marmosets

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Prosociality, social tolerance and partner choice facilitate mutually beneficial cooperation in common marmosets, Callithrix jacchus

Animal Behaviour ◽

10.1016/j.anbehav.2020.12.016 ◽

2021 ◽

Vol 173 ◽

pp. 115-136

Author(s):

J.S. Martin ◽

S.E. Koski ◽

T. Bugnyar ◽

A.V. Jaeggi ◽

J.J.M. Massen

Keyword(s):

Callithrix Jacchus ◽

Partner Choice ◽

Social Tolerance ◽

Common Marmosets

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Current practices in nutrition management and disease incidence of common marmosets ( Callithrix jacchus )

Journal of Medical Primatology ◽

10.1111/jmp.12525 ◽

2021 ◽

Author(s):

Anna Goodroe ◽

Lynn Wachtman ◽

William Benedict ◽

Krystal Allen‐Worthington ◽

Jaco Bakker ◽

...

Keyword(s):

Disease Incidence ◽

Callithrix Jacchus ◽

Common Marmosets ◽

Nutrition Management ◽

Current Practices

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Retrospective Analysis of the Effectiveness and Reversibility of Long-Acting Contraception Etonogestrel (Implanon®) in Common Marmosets (Callithrix jacchus)

Animals ◽

10.3390/ani11040963 ◽

2021 ◽

Vol 11 (4) ◽

pp. 963

Author(s):

Sandra Roubos ◽

Annet L. Louwerse ◽

Jan A. M. Langermans ◽

Jaco Bakker

Keyword(s):

Control Method ◽

Population Control ◽

Callithrix Jacchus ◽

Research Centre ◽

Primate Research ◽

Common Marmosets ◽

Neonatal Deaths ◽

Unintended Pregnancies ◽

Colony Management ◽

Long Acting

Contraception is an important population control method for the colony management of primates housed in captivity. Etonogestrel (ENG) implants (i.e., Implanon®) are a widely used progestin-based contraceptive in common marmosets (Callithrix jacchus) with the theoretical advantages of being reversible and long-acting. However, no dose and efficacy data are available yet. Therefore, data from 52 adult female marmosets contracepted with ENG (one-fourth or one-third of an implant) housed at the Biomedical Primate Research Centre (BPRC, Rijswijk, The Netherlands) over the past 18 years were analyzed. Using an electronic database, a retrospective longitudinal cohort study was conducted to calculate the reproductive data before, during and after ENG use. The data show an effectiveness in preventing pregnancy of 99%. The implant was effective within one week after insertion. Unintended pregnancies did occur, but in 60% of these cases, the animals were already pregnant at the time of implant insertion. In these cases, healthy offspring were born despite the use of the implant. No stillbirths, neonatal deaths or maternal deaths could be linked to ENG use. After implant removal, 83% of the animals delivered healthy offspring. No difference in contraception efficacy was observed between the use of one-fourth or one-third of an implant. ENG achieved a contraceptive protection exceeding 99% and was shown to be reversible concerning fertility. To our knowledge, this is the first detailed analysis on the use of ENG in marmosets.

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