Wild Bornean orangutans experience muscle catabolism during episodes of fruit scarcity
| Autor: | Daniel J Naumenko, Andrea L. DiGiorgio, Erin R. Vogel, Caitlin A O'Connell, Rebecca S. A. Brittain, Sri Suci Utami Atmoko, Alexa D. Ugarte |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Muscle tissue Male Adult male media_common.quotation_subject Science Zoology Biology Forests Muscle mass 010603 evolutionary biology 01 natural sciences Scarcity Pongo pygmaeus medicine Animals 0601 history and archaeology Muscle Skeletal Ecosystem media_common Muscle catabolism 060101 anthropology Multidisciplinary Behavior Animal Pongo 06 humanities and the arts Feeding Behavior Creatine Food resources Food Insecurity medicine.anatomical_structure Metabolism Fruit Lean body mass Medicine Female |
| Zdroj: | Scientific Reports, Vol 11, Iss 1, Pp 1-7 (2021) |
| ISSN: | 2045-2322 |
| Popis: | Pronounced temporal and spatial variation in the availability of food resources can produce energetic deficits in organisms. Fruit-dependent Bornean orangutans face extreme variation in fruit availability and experience negative energy and protein balance during episodes of fruit scarcity. We evaluate the possibility that orangutans of different sexes and ages catabolize muscle tissue when the availability of fruit is low. We assess variation in muscle mass by examining the relationship between urinary creatinine and specific gravity and use the residuals as a non-invasive measure of estimated lean body mass (ELBM). Despite orangutans having a suite of adaptations to buffer them from fruit scarcity and associated caloric deficits, ELBM was lower during low fruit periods in all age-sex classes. As predicted, adult male orangutans had higher ELBM than adult females and immatures. Contrary to expectation, flanged and unflanged males did not differ significantly in ELBM. These findings highlight the precarity of orangutan health in the face of rapid environmental change and add to a growing body of evidence that orangutans are characterized by unique metabolic traits shaped by their unpredictable forest environment. |
| Databáze: | OpenAIRE |
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