IrwinRaharisonChapmanEtAl2017

Référence

Irwin, M.T., Raharison, J.-L., Chapman, C.A., Junge, R.E. and Rothman, J.M. (2017) Minerals in the foods and diet of diademed sifakas: Are they nutritional challenges? American Journal of Primatology, 79(4):1-14. (Scopus )

Résumé

Minerals, though needed in small quantities, are essential to metabolic processes, and deficiencies can seriously threaten health, reproduction and survival. Despite this, few studies have measured mineral composition of wild primate foods and fewer have quantified mineral intake. Here we measured the concentration of nine minerals in 75 foods of diademed sifakas (Propithecus diadema; five groups) in habitats with varying levels of disturbance at Tsinjoarivo and estimated daily intakes using focal-animal feeding data and intake rates over one year. For six minerals (Ca, P, Na, Fe, Zn, and Cu), mean concentrations in foods fell short of the National Research Council's (NRC) recommendations for captive primates. Concentrations were highest in lianas, herbs, and epiphytes, and hemiparasites had exceptionally high Na. Leaves tended to have higher concentrations than fruits or flowers, but overlap was extensive. Mineral concentrations in daily diets varied little seasonally, but absolute intakes (g/day) were higher in the abundant season, due to the increase in food ingested. Disturbed habitat groups’ diets had higher mineral concentrations for five minerals, but this translated into increased intakes only for Cu, as these groups ate less food overall. Overall, comparisons with percentage-based NRC recommendations suggests deficiencies, but this is contradicted by: (1) the fact that mass-specific intakes exceeded human recommendations, and (2) the lack of observed signs of deficiency. Ongoing efforts to quantify mineral consumption across wild primate populations and better understanding requirements on both a percentage and absolute basis will help in understanding effects on food selection, managing primate habitats and formulating captive diets. © 2017 Wiley Periodicals, Inc.

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@ARTICLE { IrwinRaharisonChapmanEtAl2017,
    AUTHOR = { Irwin, M.T. and Raharison, J.-L. and Chapman, C.A. and Junge, R.E. and Rothman, J.M. },
    TITLE = { Minerals in the foods and diet of diademed sifakas: Are they nutritional challenges? },
    JOURNAL = { American Journal of Primatology },
    YEAR = { 2017 },
    VOLUME = { 79 },
    NUMBER = { 4 },
    PAGES = { 1-14 },
    NOTE = { cited By 1 },
    ABSTRACT = { Minerals, though needed in small quantities, are essential to metabolic processes, and deficiencies can seriously threaten health, reproduction and survival. Despite this, few studies have measured mineral composition of wild primate foods and fewer have quantified mineral intake. Here we measured the concentration of nine minerals in 75 foods of diademed sifakas (Propithecus diadema; five groups) in habitats with varying levels of disturbance at Tsinjoarivo and estimated daily intakes using focal-animal feeding data and intake rates over one year. For six minerals (Ca, P, Na, Fe, Zn, and Cu), mean concentrations in foods fell short of the National Research Council's (NRC) recommendations for captive primates. Concentrations were highest in lianas, herbs, and epiphytes, and hemiparasites had exceptionally high Na. Leaves tended to have higher concentrations than fruits or flowers, but overlap was extensive. Mineral concentrations in daily diets varied little seasonally, but absolute intakes (g/day) were higher in the abundant season, due to the increase in food ingested. Disturbed habitat groups’ diets had higher mineral concentrations for five minerals, but this translated into increased intakes only for Cu, as these groups ate less food overall. Overall, comparisons with percentage-based NRC recommendations suggests deficiencies, but this is contradicted by: (1) the fact that mass-specific intakes exceeded human recommendations, and (2) the lack of observed signs of deficiency. Ongoing efforts to quantify mineral consumption across wild primate populations and better understanding requirements on both a percentage and absolute basis will help in understanding effects on food selection, managing primate habitats and formulating captive diets. © 2017 Wiley Periodicals, Inc. },
    AFFILIATION = { Department of Anthropology, Northern Illinois University, DeKalb, IL, United States; SADABE Madagascar, Antananarivo, Madagascar; Department of Animal Biology, University of Antananarivo, Antananarivo, Madagascar; Department of Anthropology and McGill School of Environment, McGill University, Montreal, QC, Canada; Wildlife Conservation Society, 2300 Southern Boulevard, Bronx, New York, NY, United States; Department of Animal Health, Columbus Zoo and Aquarium, Columbus, OH, United States; Department of Anthropology, Hunter College, City University of New York, New York, NY, United States; New York Consortium in Evolutionary Primatology (NYCEP), New York, NY, United States },
    AUTHOR_KEYWORDS = { habitat disturbance; lemurs; micronutrients; nutrition; seasonality },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1002/ajp.22623 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85009843905&doi=10.1002%2fajp.22623&partnerID=40&md5=67edaf5001ed2c73e430d77e9f9f7fab },
}

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