Dietary flexibility of the greater bamboo lemur (Prolemur simus), a specialized feeder, in eastern Madagascar.
anthropogenic disturbance
conservation
dietary specialist
primates
Journal
American journal of primatology
ISSN: 1098-2345
Titre abrégé: Am J Primatol
Pays: United States
ID NLM: 8108949
Informations de publication
Date de publication:
26 Feb 2024
26 Feb 2024
Historique:
revised:
23
01
2024
received:
20
03
2023
accepted:
10
02
2024
medline:
27
2
2024
pubmed:
27
2
2024
entrez:
27
2
2024
Statut:
aheadofprint
Résumé
The degree of dietary flexibility in primates is species specific; some incorporate a wider array of resources than others. Extreme interannual weather variability in Madagascar results in seasonal resource scarcity which has been linked to specialized behaviors in lemurs. Prolemur simus, for example, has been considered an obligate specialist on large culm bamboo with >60% of its diet composed of woody bamboos requiring morphological and physiological adaptations to process. Recent studies reported an ever-expanding list of dietary items, suggesting that this species may not be an obligate specialist. However, long-term quantitative feeding data are unavailable across this species' range. To explore the dietary flexibility of P. simus, we collected data at two northern sites, Ambalafary and Sahavola, and one southern site, Vatovavy, from September 2010 to January 2016 and May 2017 to September 2018, respectively. In total, we recorded 4022 h of behavioral data using instantaneous sampling of adult males and females from one group in Ambalafary, and two groups each in Sahavola and Vatovavy. We recorded 45 plant species eaten by P. simus over 7 years. We also observed significant differences in seasonal dietary composition between study sites. In Ambalafary, bamboo was the most frequently observed resource consumed (92.2%); however, non-bamboo resources comprised nearly one-third of the diet of P. simus in Sahavola and over 60% in Vatovavy. Consumption of all bamboo resources increased during the dry season at Ambalafary and during the wet season at Vatovavy, but never exceeded non-bamboo feeding at the latter. Culm pith feeding was only observed at Ambalafary, where it was more common during the dry season. We identify P. simus as a bamboo facultative specialist capable of adjusting its feeding behavior to its environment, indicating greater dietary flexibility than previously documented, which may enable the species to survive in increasingly degraded habitats.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e23609Subventions
Organisme : Re:wild
Organisme : Margot Marsh Biodiversity Foundation
Organisme : Omaha's Henry Doorly Zoo & Aquarium
Organisme : Conservation International
Organisme : Aspinall Foundation
Informations de copyright
© 2024 The Authors. American Journal of Primatology published by Wiley Periodicals LLC.
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