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Title : The sticky tasty: the nutritional content of the exudativorous diet of the Javan slow loris in a lowland forest
Author :

Tungga Dewi (1) Dr. rer. silv. Muhammad Ali Imron, S.Hut., M.Sc. (2) Prof. Dr. Ir. Ganis Lukmandaru, S.Hut., M.Agr., IPU. (3) Katherine Hedger (4) Marco Campera (5) K. Anne-Isola Nekaris (6)
Date : 1 2021
Keyword : Exudates,Javan slow loris,Javan lowland forest ,Nutritional content,Plant secondary metabolites Exudates,Javan slow loris,Javan lowland forest ,Nutritional content,Plant secondary metabolites
Abstract : Plant exudates are an important food source for many primates. The Critically Endangered Javan slow loris (Nycticebus javanicus) was previously found to prefer Acacia decurrens exudate in an anthropogenically disturbed site, while its feeding habits in secondary natural forest remain unknown. Knowledge of the chemical characteristics of the plant exudates that Javan slow lorises consume is limited, especially with respect to those that they feed on in natural forests. As plant exudates may contain plant secondary metabolites (PSM), which are considered unpalatable in high concentrations, differences in PSM composition may drive feeding preferences. This research aims firstly to confirm exudate consumption by the Javan slow loris in a lowland tropical forest in Central Java, and secondly to identify the chemical characteristics of the exudates consumed. We followed wild slow lorises in Kemuning Forest, Central Java and observed their behaviour. We investigated the gum-producing trees that were utilized by the slow lorises by tapping the exudates and examining their nutritional and PSM contents. We found that exudates are the predominant food source for the Javan slow loris in this lowland forest, and that their nutritional contents are similar to those of exudates consumed by lorises in anthropogenically disturbed areas. Significant differences in polysaccharide and flavonoid contents were found between consumed and unconsumed exudates. Knowledge of the diet of the Javan slow loris is crucial to its conservation, and our findings confirm the importance of exudates in its diet. We also highlight the need to preserve natural slow loris habitat, and to manage the diets of these species in captivity. The results of this study indicate that plant exudates should constitute a significant portion of the diet of captive slow lorises, and that the presence of exudate-producing trees is vital in areas into which slow lorises are to be translocated.
Group of Knowledge : Konservasi Sumberdaya Hutan
Original Language : English
Level : Internasional
Status :
Published
Document
No Title Document Type Action
1 Figure 1 _ Cover illustration of Primates vol_ 63 (2022) _ SpringerLink.pdf
Document Type : [PAK] Halaman Cover
[PAK] Halaman Cover View
2 Primates _ Editors.pdf
Document Type : [PAK] Halaman Editorial
[PAK] Halaman Editorial View
3 Primates _ Volume 63, issue 1.pdf
Document Type : [PAK] Daftar Isi
[PAK] Daftar Isi View
4 form-L1-permohonan_penghargaan-karya-ilmiah-sudah-terbit-2022.pdf
Document Type : Dokumen Pendukung Karya Ilmiah (Hibah, Publikasi, Penelitian, Pengabdian)
Dokumen Pendukung Karya Ilmiah (Hibah, Publikasi, Penelitian, Pengabdian) View