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Title: Behavioral and physiological changes in a juvenile Bornean orangutan after a wildlife rescue
Authors: Mendonça, Renata S.
Takeshita, Rafaela S.C.
Kanamori, Tomoko
Kuze, Noko
Hayashi, Misato  kyouindb  KAKEN_id
Kinoshita, Kodzue  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-5804-5485 (unconfirmed)
Bernard, Henry
Matsuzawa, Tetsuro  kyouindb  KAKEN_id
Author's alias: 金森, 朝子
林, 美里
木下, こづえ
松沢, 哲郎
Keywords: Rescue
Hematology
Biochemistry
Stress
Activity budget
Issue Date: Oct-2016
Publisher: Elsevier BV
Journal title: Global Ecology and Conservation
Volume: 8
Start page: 116
End page: 122
Abstract: We report a case of a juvenile female orangutan (Pongo pygmaeus morio) that remained in a durian tree (Durio zibethinus) for about one month, nearby a road delimiting Danum Valley Conservation Area (DVCA), East Borneo. The juvenile was rescued and brought to Sepilok Orangutan Rehabilitation Centre (SORC). Before rescue and after release, we recorded the juvenile’s activity and collected fecal samples for the determination of fecal glucocorticoids (fGC). We compared the behavior and stress levels between the two conditions and made comparisons with DVCA juveniles. Additionally, we obtained hematological and biochemical parameters pre and post-quarantine, to monitor her health condition and recovery. The pre-quarantine diagnosis revealed dehydration, malnourishment and slight anemia, but after quarantine her condition stabilized. The juvenile showed abnormal activity in both conditions, with high bark consumption before rescue and a high proportion of resting time after release. fGC levels were higher in comparison to DVCA juveniles, and showed a marked increase after the release. The results suggest that rescue programs help reestablish health parameters, but release processes are stressful for wild orangutans. Early separation from the mother in orangutans may occur more often than reported, particularly in fragmented habitats, and result in poor health that could hasten death.
Rights: © 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
URI: http://hdl.handle.net/2433/222807
DOI(Published Version): 10.1016/j.gecco.2016.08.004
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