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<document id="AC8A2D1F636A4248AFA53557589F46C9" ID-CLB-Dataset="80831" ID-DOI="10.5281/zenodo.6727957" ID-GBIF-Dataset="a9b14435-eb35-414e-8820-b9eda51268f3" ID-ISBN="978-84-96553-89-7" ID-Zenodo-Dep="6727957" IM.metadata_requiresApprovalFor="plazi" IM.taxonomicNames_requiresApprovalFor="plazi" checkinTime="1656102006799" checkinUser="jonas" docAuthor="Russell A. Mittermeier, Anthony B. Rylands &amp; Don E. Wilson" docDate="2013" docId="03D787BA0E3BFFC3FA3EF4E5FD22C32D" docLanguage="en" docName="hbmw_3_Hylobatidae_0778.pdf.imf" docOrigin="Handbook of the Mammals of the World Volume 3 Primates, Barcelona: Lynx Edicions" docTitle="Hylobates albibarbs" docType="treatment" docVersion="7" lastPageNumber="781" masterDocId="FFEEFFC20E39FFC0FF86FFAFFFB9CB7E" masterDocTitle="Hylobatidae" masterLastPageNumber="791" masterPageNumber="778" pageNumber="780" updateTime="1699350032655" updateUser="ExternalLinkService">
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<mods:title id="0FA7FF6BAD6B229C7893D131604133B6">Hylobatidae</mods:title>
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<mods:namePart id="510E4878EE2FC2F2D1B6AB324F248F1F">Russell A. Mittermeier</mods:namePart>
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<mods:namePart id="C9A623D19A10EE6FD8AB0AF3C1DA32D4">Anthony B. Rylands</mods:namePart>
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<mods:namePart id="EFCCECBD7F5381FA0BC66D178841AB91">Don E. Wilson</mods:namePart>
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<mods:title id="2B073DE3B0F44448A0824F374E3F85B9">Handbook of the Mammals of the World Volume 3 Primates</mods:title>
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<subSubSection id="C36465270E3BFFC2FA3EF4E5FA61C006" box="[1464,1496,2890,2936]" pageId="2" pageNumber="780" type="multiple">
<paragraph id="8BC136AC0E3BFFC2FA3EF4E5FA61C006" blockId="2.[1462,2612,2890,3016]" box="[1464,1496,2890,2936]" pageId="2" pageNumber="780">
<heading id="D08981C00E3BFFC2FA3EF4E5FA61C006" box="[1464,1496,2890,2936]" pageId="2" pageNumber="780">
<figureCitation id="13452A290E3BFFC2FA3EF4E5FA61C006" box="[1464,1496,2890,2936]" captionStart="Plate 53: Hylobatidae" captionStartId="1.[100,130,3414,3439]" captionTargetBox="[11,2743,13,3642]" captionTargetPageId="0" captionText="1. Western Hoolock Gibbon (Hoolock hoolock), 2. Eastern Hoolock Gibbon (Hoolock leuconedys), 3. Agile Gibbon (Hylobates agilis), 4. Bornean White-bearded Gibbon (Hylobates albibarbs), 5. Klosss Gibbon (Hylobates klossu), 6. Lar Gibbon (Hylobates lar), 7. Moloch Gibbon (Hylobates moloch), 8. Mullers Gibbon (Hylobates muelleri), 9. Abbott's Gray Gibbon (Hylobates abbotti), 10. East Bornean Gray Gibbon (Hylobates funereus), 11. Pileated Gibbon (Hylobates pileatus)" figureDoi="http://doi.org/10.5281/zenodo.6727999" httpUri="https://zenodo.org/record/6727999/files/figure.png" pageId="2" pageNumber="780">4.</figureCitation>
</heading>
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<subSubSection id="C36465270E3BFFC2FA6FF4E5F735C006" box="[1513,2188,2890,2936]" pageId="2" pageNumber="780" type="vernacular_names">
<paragraph id="8BC136AC0E3BFFC2FA6FF4E5F735C006" blockId="2.[1462,2612,2890,3016]" box="[1513,2188,2890,2936]" pageId="2" pageNumber="780">
<heading id="D08981C00E3BFFC2FA6FF4E5F735C006" box="[1513,2188,2890,2936]" pageId="2" pageNumber="780">
<vernacularName id="057D46820E3BFFC2FA6FF4E5F735C006" box="[1513,2188,2890,2936]" pageId="2" pageNumber="780">Bornean White-bearded Gibbon</vernacularName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C36465270E3BFFC2F754F4E5F58AC006" box="[2258,2611,2890,2936]" pageId="2" pageNumber="780" type="nomenclature">
<paragraph id="8BC136AC0E3BFFC2F754F4E5F58AC006" blockId="2.[1462,2612,2890,3016]" box="[2258,2611,2890,2936]" pageId="2" pageNumber="780">
<heading id="D08981C00E3BFFC2F754F4E5F58AC006" box="[2258,2611,2890,2936]" pageId="2" pageNumber="780">
<taxonomicName id="4C7E4D2F0E3BFFC2F754F4E5F58AC006" baseAuthorityName="Lyon" baseAuthorityYear="1911" box="[2258,2611,2890,2936]" class="Mammalia" family="Hylobatidae" genus="Hylobates" kingdom="Animalia" order="Primates" pageId="2" pageNumber="780" phylum="Chordata" rank="species" species="albibarbs">
<emphasis id="B90AEABE0E3BFFC2F754F4E5F58AC006" box="[2258,2611,2890,2936]" italics="true" pageId="2" pageNumber="780">Hylobates albibarbs</emphasis>
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C36465270E3BFFC2FA3EF425F828C0B8" pageId="2" pageNumber="780" type="vernacular_names">
<paragraph id="8BC136AC0E3BFFC2FA3EF425F686C0E1" blockId="2.[1462,2612,2890,3016]" box="[1464,2367,2954,2975]" pageId="2" pageNumber="780">
<heading id="D08981C00E3BFFC2FA3EF425F686C0E1" box="[1464,2367,2954,2975]" pageId="2" pageNumber="780">
<emphasis id="B90AEABE0E3BFFC2FA3EF425F9BCC0E1" bold="true" box="[1464,1541,2954,2975]" pageId="2" pageNumber="780">French:</emphasis>
<vernacularName id="057D46820E3BFFC2F988F425F940C0E1" box="[1550,1785,2954,2975]" pageId="2" pageNumber="780">Gibbon a barbe blanche</vernacularName>
/
<emphasis id="B90AEABE0E3BFFC2F888F425F8D3C0E1" bold="true" box="[1806,1898,2954,2975]" pageId="2" pageNumber="780">German:</emphasis>
<vernacularName id="057D46820E3BFFC2F8F4F425F7ABC0E1" box="[1906,2066,2954,2975]" pageId="2" pageNumber="780">Weil3bartgibbon</vernacularName>
/
<emphasis id="B90AEABE0E3BFFC2F7A1F425F73BC0E1" bold="true" box="[2087,2178,2954,2975]" pageId="2" pageNumber="780">Spanish:</emphasis>
<vernacularName id="057D46820E3BFFC2F70AF425F686C0E1" box="[2188,2367,2954,2975]" pageId="2" pageNumber="780">Gibén barbiblanco</vernacularName>
</heading>
</paragraph>
<paragraph id="8BC136AC0E3BFFC2FA31F41EF828C0B8" blockId="2.[1462,2612,2890,3016]" box="[1463,1937,2993,3014]" pageId="2" pageNumber="780">
<heading id="D08981C00E3BFFC2FA31F41EF828C0B8" box="[1463,1937,2993,3014]" pageId="2" pageNumber="780">
<emphasis id="B90AEABE0E3BFFC2FA31F41EF917C0B8" bold="true" box="[1463,1710,2993,3014]" pageId="2" pageNumber="780">Other common names:</emphasis>
<vernacularName id="057D46820E3BFFC2F93EF41EF828C0B8" box="[1720,1937,2993,3014]" pageId="2" pageNumber="780">Bornean Agile Gibbon</vernacularName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C36465270E3BFFC2F7A6F45BF775C742" pageId="2" pageNumber="780" type="reference_group">
<paragraph id="8BC136AC0E3BFFC2F7A6F45BF775C742" blockId="2.[2079,2670,3060,3487]" pageId="2" pageNumber="780">
<emphasis id="B90AEABE0E3BFFC2F7A6F45BF702C76B" bold="true" box="[2080,2235,3060,3093]" pageId="2" pageNumber="780">Taxonomy.</emphasis>
<taxonomicName id="4C7E4D2F0E3BFFC2F759F45BF77FC742" ID-CoL="3NFRJ" authority="Lyon, 1911" authorityName="Lyon" authorityYear="1911" class="Mammalia" family="Hylobatidae" genus="Hylobates" kingdom="Animalia" order="Primates" pageId="2" pageNumber="780" phylum="Chordata" rank="subSpecies" species="mulleri" subSpecies="albibarbis">Hylobates mülleri albibarbis Lyon, 1911</taxonomicName>
,
</paragraph>
</subSubSection>
<subSubSection id="C36465270E3BFFC2F767F38CF690C71D" pageId="2" pageNumber="780" type="materials_examined">
<paragraph id="8BC136AC0E3BFFC2F767F38CF690C71D" blockId="2.[2079,2670,3060,3487]" pageId="2" pageNumber="780">
<materialsCitation id="3B163CF10E3BFFC2F767F38CF690C71D" ID-GBIF-Occurrence="3818819314" pageId="2" pageNumber="780">Indonesia, near Sukadana, south-west Borneo.</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="C36465270E3BFFC2F7A7F3C5F61BC67F" pageId="2" pageNumber="780" type="discussion">
<paragraph id="8BC136AC0E3BFFC2F7A7F3C5F61BC67F" blockId="2.[2079,2670,3060,3487]" pageId="2" pageNumber="780">
Previously regarded as a subspecies of
<taxonomicName id="4C7E4D2F0E3BFFC2F7A7F33EF726C7CC" authorityName="F. Cuvier" authorityYear="1821" box="[2081,2207,3217,3250]" class="Mammalia" family="Hylobatidae" genus="Hylobates" kingdom="Animalia" order="Primates" pageId="2" pageNumber="780" phylum="Chordata" rank="species" species="agilis">H. agilis</taxonomicName>
. This species hybridizes with
<taxonomicName id="4C7E4D2F0E3BFFC2F7A7F317F708C7A7" authorityName="Martin" authorityYear="1841" box="[2081,2225,3256,3289]" class="Mammalia" family="Hylobatidae" genus="Hylobates" kingdom="Animalia" order="Primates" pageId="2" pageNumber="780" phylum="Chordata" rank="species" species="muelleri">H. muelleri</taxonomicName>
and
<taxonomicName id="4C7E4D2F0E3BFFC2F77FF317F6C0C7A7" authorityName="Kloss" authorityYear="1929" box="[2297,2425,3256,3289]" class="Mammalia" family="Hylobatidae" genus="Hylobates" kingdom="Animalia" order="Primates" pageId="2" pageNumber="780" phylum="Chordata" rank="species" species="abbotti">H. abbotti</taxonomicName>
in a wide area of central Borneo. Monotypic.
</paragraph>
</subSubSection>
<subSubSection id="C36465270E3BFFC2F7A6F2A3F7D5C6E1" pageId="2" pageNumber="780" type="distribution">
<caption id="DF0166240E3BFFC2F7A6F2A3F7D5C6E1" ID-DOI="http://doi.org/10.5281/zenodo.6727965" ID-Zenodo-Dep="6727965" httpUri="https://zenodo.org/record/6727965/files/figure.png" inLine="true" pageId="2" pageNumber="780" targetBox="[1466,2048,3071,3479]" targetPageId="2">
<paragraph id="8BC136AC0E3BFFC2F7A6F2A3F7D5C6E1" blockId="2.[2079,2670,3060,3487]" pageId="2" pageNumber="780">
<emphasis id="B90AEABE0E3BFFC2F7A6F2A3F769C657" bold="true" box="[2080,2256,3340,3369]" pageId="2" pageNumber="780">Distribution.</emphasis>
SW Borneo (West Kalimantan &amp; Central Kalimantan provinces), S of the Kapuas River and W of the Barito River.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="C36465270E3AFFC3FFE2FEB1FCC3C955" pageId="3" pageNumber="781" type="description">
<paragraph id="8BC136AC0E3AFFC3FFE2FEB1FCC3C955" blockId="3.[96,1307,286,2135]" pageId="3" pageNumber="781">
<emphasis id="B90AEABE0E3AFFC3FFE2FEB1FEE2CA41" bold="true" box="[100,347,286,319]" pageId="3" pageNumber="781">Descriptive notes.</emphasis>
There are no specific body measurements available; weight 4.9-6 kg (males) and 6.1-6.8 kg (females). The Bornean White-bearded
<taxonomicName id="4C7E4D2F0E3AFFC3FC7BFEE6FBDCCA18" box="[1021,1125,329,358]" class="Mammalia" family="Hylobatidae" genus="Gibbon" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Primates" pageId="3" pageNumber="781" phylum="Chordata" rank="genus">Gibbon</taxonomicName>
is similar to the Agile
<taxonomicName id="4C7E4D2F0E3AFFC3FF6AFEC2FEECCAF0" box="[236,341,365,398]" class="Mammalia" family="Hylobatidae" genus="Gibbon" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Primates" pageId="3" pageNumber="781" phylum="Chordata" rank="genus">Gibbon</taxonomicName>
(
<taxonomicName id="4C7E4D2F0E3AFFC3FEEBFEC2FE5ACAF0" authorityName="F. Cuvier" authorityYear="1821" box="[365,483,365,398]" class="Mammalia" family="Hylobatidae" genus="Hylobates" kingdom="Animalia" order="Primates" pageId="3" pageNumber="781" phylum="Chordata" rank="species" species="agilis">H. agilis</taxonomicName>
), but with no black morph. Of all the gibbons, this species has the most colorful and distinctive coat pattern. It is light grayish-brown, becoming golden-toned on the rump and with a blackened ventral zone, hands, and feet. The crown hair is directed fanwise from the front of the scalp, and the cap is dark although margined with buff. Males often have a light genital tuft.
</paragraph>
</subSubSection>
<subSubSection id="C36465270E3AFFC3FFE5FD9DFF4DC9DF" pageId="3" pageNumber="781" type="biology_ecology">
<paragraph id="8BC136AC0E3AFFC3FFE5FD9DFF4DC9DF" blockId="3.[96,1307,286,2135]" pageId="3" pageNumber="781">
<emphasis id="B90AEABE0E3AFFC3FFE5FD9DFF6BC92D" bold="true" box="[99,210,562,595]" pageId="3" pageNumber="781">Habitat.</emphasis>
Primary, secondary, and selectively logged tropical evergreen forest up to 1200 m above sea level and peat-swamp forest. Population densities decrease at higher elevations.
</paragraph>
</subSubSection>
<subSubSection id="C36465270E3AFFC3FFE5FD07FB7DC98E" pageId="3" pageNumber="781" type="food_feeding">
<paragraph id="8BC136AC0E3AFFC3FFE5FD07FB7DC98E" blockId="3.[96,1307,286,2135]" pageId="3" pageNumber="781">
<emphasis id="B90AEABE0E3AFFC3FFE5FD07FECAC9B7" bold="true" box="[99,371,680,713]" pageId="3" pageNumber="781">Food and Feeding.</emphasis>
The Bornean White-bearded
<taxonomicName id="4C7E4D2F0E3AFFC3FCB4FD07FC22C9B7" box="[818,923,680,713]" class="Mammalia" family="Hylobatidae" genus="Gibbon" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Primates" pageId="3" pageNumber="781" phylum="Chordata" rank="genus">Gibbon</taxonomicName>
is predominantly frugivorous, preferring fruits high in sugar, butit also eats immature leaves and insects.
</paragraph>
</subSubSection>
<subSubSection id="C36465270E3AFFC3FFE5FD58FED1C840" pageId="3" pageNumber="781" type="breeding">
<paragraph id="8BC136AC0E3AFFC3FFE5FD58FED1C840" blockId="3.[96,1307,286,2135]" pageId="3" pageNumber="781">
<emphasis id="B90AEABE0E3AFFC3FFE5FD58FF50C866" bold="true" box="[99,233,759,792]" pageId="3" pageNumber="781">Breeding.</emphasis>
Full maturity of male and female Bornean White-bearded Gibbons occurs at 6-8 years of age.
</paragraph>
</subSubSection>
<subSubSection id="C36465270E3AFFC3FFE4FCEAFAADC8CB" pageId="3" pageNumber="781" type="activity">
<paragraph id="8BC136AC0E3AFFC3FFE4FCEAFAADC8CB" blockId="3.[96,1307,286,2135]" pageId="3" pageNumber="781">
<emphasis id="B90AEABE0E3AFFC3FFE4FCEAFEE8C818" bold="true" box="[98,337,837,870]" pageId="3" pageNumber="781">Activity patterns.</emphasis>
The Bornean White-bearded
<taxonomicName id="4C7E4D2F0E3AFFC3FC92FCEAFCC5C818" box="[788,892,837,870]" class="Mammalia" family="Hylobatidae" genus="Gibbon" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Primates" pageId="3" pageNumber="781" phylum="Chordata" rank="genus">Gibbon</taxonomicName>
is diurnal and arboreal. In Sabangau National Park, Central Kalimantan, they spend, on average, 29% their day feeding, 29% traveling, 29% resting, 9% in singing, and 4% engaged in social activities.
</paragraph>
</subSubSection>
<subSubSection id="C36465270E3AFFC3FFE5FC6FFE1ECE41" pageId="3" pageNumber="781" type="biology_ecology">
<paragraph id="8BC136AC0E3AFFC3FFE5FC6FFE1ECE41" blockId="3.[96,1307,286,2135]" pageId="3" pageNumber="781">
<emphasis id="B90AEABE0E3AFFC3FFE5FC6FFC9EC8A3" bold="true" box="[99,807,960,989]" pageId="3" pageNumber="781">Movements, Home range and Social organization.</emphasis>
Polygynous pairings have been reported in the
<taxonomicName id="4C7E4D2F0E3AFFC3FEAEFC48FE74CF7A" authorityName="Lyon" authorityYear="1911" box="[296,461,999,1028]" class="Mammalia" family="Hylobatidae" genus="Hylobates" kingdom="Animalia" order="Primates" pageId="3" pageNumber="781" phylum="Chordata" rank="species" species="albibarbis">H. albibarbis</taxonomicName>
x
<taxonomicName id="4C7E4D2F0E3AFFC3FE69FC48FDC6CF7A" authorityName="Martin" authorityYear="1841" box="[495,639,999,1028]" class="Mammalia" family="Hylobatidae" genus="Hylobates" kingdom="Animalia" order="Primates" pageId="3" pageNumber="781" phylum="Chordata" rank="species" species="muelleri">H. muelleri</taxonomicName>
(Miller's
<taxonomicName id="4C7E4D2F0E3AFFC3FC97FC48FCC2CF7A" box="[785,891,999,1028]" class="Mammalia" family="Hylobatidae" genus="Gibbon" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Primates" pageId="3" pageNumber="781" phylum="Chordata" rank="genus">Gibbon</taxonomicName>
) hybrid zone. Average home range sizes were 28 ha and 47 ha for Bornean White-bearded Gibbons in Gunung Palung and Sabangau national parks, respectively. In general, males are aggressive toward other males and also defend their group's territory. Females usually lead the group's daily progressions and keep away other females. Population densities range from 7-4 ind/km? (2-2 groups/km?) in logged peatswamp forest of Sabangau National Park and 8-7 ind/km? in primarily heath forest in Tanjung Puting National Park, Central Kalimantan, to 14-9 ind/km? in mountain forests in Gunung Palung National Park, West Kalimantan.
</paragraph>
</subSubSection>
<subSubSection id="C36465270E3AFFC3FFE5FAE4FBA7CC19" pageId="3" pageNumber="781" type="conservation">
<paragraph id="8BC136AC0E3AFFC3FFE5FAE4FBA7CC19" blockId="3.[96,1307,286,2135]" pageId="3" pageNumber="781">
<emphasis id="B90AEABE0E3AFFC3FFE5FAE4FE7DCE16" bold="true" box="[99,452,1355,1384]" pageId="3" pageNumber="781">Status and Conservation.</emphasis>
CITES Appendix I. Classified as Endangered on The IUCN Red List. The Bornean White-bearded
<taxonomicName id="4C7E4D2F0E3AFFC3FD0CFAC2FD4BCEF0" box="[650,754,1389,1422]" class="Mammalia" family="Hylobatidae" genus="Gibbon" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Primates" pageId="3" pageNumber="781" phylum="Chordata" rank="genus">Gibbon</taxonomicName>
is legally protected in Indonesia. It is threatened mainly by habitat loss due to fires,illegal logging, and oil palm plantations. A'large part ofits distribution occurs in peat swamp—an extremely threatened ecosystem because of draining, logging, and burning. The Bornean White-bearded
<taxonomicName id="4C7E4D2F0E3AFFC3FB2DFA4CFAADCD7A" box="[1195,1300,1507,1540]" class="Mammalia" family="Hylobatidae" genus="Gibbon" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Primates" pageId="3" pageNumber="781" phylum="Chordata" rank="genus">Gibbon</taxonomicName>
was certainly affected by the widespread forest fires in the 1990s and continuing deforestation, but no recent surveys are available on population trends. The Bornean Whitebearded
<taxonomicName id="4C7E4D2F0E3AFFC3FF64F9F5FEF2CD05" box="[226,331,1626,1659]" class="Mammalia" family="Hylobatidae" genus="Gibbon" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Primates" pageId="3" pageNumber="781" phylum="Chordata" rank="genus">Gibbon</taxonomicName>
is frequently captured for pets and occasionally hunted for meat. It occurs in six protected areas: Bukit Baka Bukit Raya, Gunung Palung, Tanjung Puting, and Sabangau national parks and Hampapak and Kendawangan nature reserves in Indonesia. The Bornean White-bearded
<taxonomicName id="4C7E4D2F0E3AFFC3FDFFF97FFD58CD8F" box="[633,737,1744,1777]" class="Mammalia" family="Hylobatidae" genus="Gibbon" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Primates" pageId="3" pageNumber="781" phylum="Chordata" rank="genus">Gibbon</taxonomicName>
is generally common in suitable habitat. A tentative estimate suggests that ¢.19,000 individuals live in the mixed-swamp forest subtype in Sabangau National Park, which has one of the largest remaining continuous populations. An estimate of the total population is not available.
</paragraph>
</subSubSection>
<subSubSection id="C36465270E3AFFC3FFE4F8D9FD22C32D" pageId="3" pageNumber="781" type="bibRefCitation_list">
<paragraph id="8BC136AC0E3AFFC3FFE4F8D9FD22C32D" blockId="3.[96,1307,286,2135]" pageId="3" pageNumber="781">
<emphasis id="B90AEABE0E3AFFC3FFE4F8D9FF45CCF1" bold="true" box="[98,252,1910,1935]" pageId="3" pageNumber="781">Bibliography.</emphasis>
Buckley (2004), Buckley et al. (2006), Cheyne (2010), Cheyne &amp; Brulé (2004), Cheyne et al. (2008), Chivers (1977, 2001), Groves (2001), Hirai, Hayano et al. (2009), Hirai, Wijayanto et al. (2005), Kloss (1929), Marshall &amp; Sugardjito (1986), Mather (1992), McConkey (2000, 2005a, 2005b), McConkey, Aldy et al. (2002), McConkey, Ario et al. (2003), Meijaard et al. (2005), Mitani (1987a, 1987b, 1988, 1990a), Mitani &amp; Marler (1989), Nijman (2005b), Nijman, Richardson &amp; Geissmann (2008), Short (2004), Sugardjito (1978, 1988), Van Ngoc Thinh, Mootnick, Geissmann et al. (2010).
</paragraph>
</subSubSection>
</treatment>
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