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Behavioral Responses of Cao Vit Gibbon (Nomascus Nasutus) to Variations in Food Abundance and Temperature in Bangliang, Jingxi, China
American journal of primatology, 2012-07, Vol.74 (7), p.632-641
Fan, Peng-fei
Fei, Han-lan
Ma, Chang-yong
2012
Details
Autor(en) / Beteiligte
Fan, Peng-fei
Fei, Han-lan
Ma, Chang-yong
Titel
Behavioral Responses of Cao Vit Gibbon (Nomascus Nasutus) to Variations in Food Abundance and Temperature in Bangliang, Jingxi, China
Ist Teil von
American journal of primatology, 2012-07, Vol.74 (7), p.632-641
Ort / Verlag
United States: Blackwell Publishing Ltd
Erscheinungsjahr
2012
Link zum Volltext
Quelle
Wiley Online Library Journals Frontfile Complete
Beschreibungen/Notizen
The Cao Vit gibbon is a critically endangered species with only about 110 individuals remaining in a degraded karst forest along the China‐Vietnam border. Behavioral data from this site are particularly useful in understanding gibbon behavioral adaptations to different sets of ecological conditions and will contribute to the conservation of the species. We studied seasonal variation in the time budget and diet of the Cao Vit gibbon in response to variation in food availability and ambient temperature by observing two groups for 1,379 hr between January and December 2009. We used 5‐min scan samples to record the activity of gibbons. Both ambient temperature and food availability varied from month to month. Gibbon groups increased resting time and huddled together in sleeping places in cold months. Gibbons spent more time feeding on fruit when fruit was more abundant suggesting that fruit was their preferred food. Alternatively, leaf eating was negatively correlated with leaf availability which suggested that leaves may be used as a fallback food. Gibbons increased their diet diversity when they ate more leaves. This might be a strategy to cope with toxins or digestion inhibitor accumulation associated with feeding from a limited number of leaf species. Individuals consumed more buds when Broussonetia papyrifera produced buds in March and April. During this period, they decreased traveling time and engaged in less frequent social interactions. Gibbons spent more time searching for and feeding on invertebrates during June and October. However, we did not collect data on invertebrate abundance and therefore cannot determine the relationship between invertebrate feeding and availability. We conclude that flexibility in consuming diverse food types and food species, and in responding to the availability of preferred foods, has enabled the Cao Vit gibbon to survive in a degraded karst forest habitat. Am. J. Primatol. 74:632–641, 2012. © 2012 Wiley Periodicals, Inc.
Sprache
Englisch
Identifikatoren
ISSN: 0275-2565
eISSN: 1098-2345
DOI: 10.1002/ajp.22016
Titel-ID: cdi_proquest_miscellaneous_1780513588
Format
–
Schlagworte
Animals
,
Behavior, Animal - physiology
,
Broussonetia papyrifera
,
Cao Vit gibbon
,
China
,
Climate
,
Conservation of Natural Resources
,
Diet
,
Endangered Species
,
Feeding Behavior
,
Food
,
Food Preferences
,
Fruit
,
Hylobates - physiology
,
Nomascus nasutus
,
Plant Leaves
,
Primate behaviour
,
Primate biology
,
Primatology
,
seasonal variation
,
Seasons
,
Social Behavior
,
Temperature
,
time budget
,
Time Factors
,
Vietnam
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