View source for Red colobus

{{Short description|Genus of Old World monkeys}}
{{Automatic taxobox
| name = Red colobus<ref name=msw3/>
| image = Red Colobus 7.jpg
| image_caption = [[Zanzibar red colobus]]
| taxon = Piliocolobus
| display_parents = 2
| authority = [[Alphonse Trémeau de Rochebrune|Rochebrune]], 1887<ref>{{cite journal|last=Groves|first=Colin|title=The taxonomic diversity of the Colobinae of Africa|journal=Journal of Anthropological Sciences|year=2007|volume=85|page=16|url=https://www.isita-org.com/jass/Contents/2007%20vol85/Articoli/grovesCOL.pdf}}</ref><ref>{{cite book|title=Faune de Senegambie (Supplement)| year=1887|author=de Rochebrune, A. |pages=96|url=https://www.biodiversitylibrary.org/item/208854#page/136/mode/1up}}</ref>
| type_species = ''[[western red colobus|Simia (Cercopithecus) badius]]''
| type_species_authority = [[Robert Kerr (writer)|Kerr]], 1792
| subdivision_ranks = Species
| subdivision = See text
}}

'''Red colobuses''' are [[Old World monkey]]s of the genus '''''Piliocolobus'''''.<ref name=handbook>{{cite book|title=Handbook of the Mammals of the World: Volume 3, Primates|year=2013|isbn=978-8496553897|publisher=Lynx|editor1= Mittermeier, Russell A.|editor2=Rylands, Anthony B.|editor3=Wilson, Don E.|author1=Zinner, D.|author2=Fickenscher, G.H.|author3=Roos, C.|pages=705–712}}</ref> It was formerly considered a subgenus within the [[genus]] ''[[Procolobus]]'', which is now restricted to the [[olive colobus]].<ref name=msw3>{{MSW3 Groves | pages = 169-170 | id=12100620 | heading=GENUS ''Piliocolobus''}}</ref> They are closely related to the [[black-and-white colobus]] monkeys (genus ''Colobus''), and some species are often found in groups with the [[blue monkey]].<ref>Ghiglieri, Michael. ''East of the Mountains of the Moon: Chimpanzee Society in the African Rain Forest,'' The Free Press, 1988, pg. 238.</ref> The [[western red colobus]] is frequently hunted by the [[common chimpanzee]].<ref>[http://virus.stanford.edu/filo/eboci.html Ebola Cote d'Ivoire Outbreaks<!-- Bot generated title -->]</ref>

The members of this genus are found in western, central and eastern Africa, and the species have largely [[allopatric|allo-]] or [[parapatric]] distributions. They are primarily arboreal and most are restricted to humid forests, but the [[Zanzibar red colobus]] prefers coastal thickets and scrub. Red colobuses are highly sensitive to hunting and [[habitat destruction]], and have been referred to as probably the most [[threatened]] [[Taxonomy (biology)|taxonomic]] group of [[primates]] in Africa.<ref>Mittermeier, R. A., Ratsimbazafy, J., Rylands, A. B., Williamson, L., Oates, J. F., Mbora, D., Ganzhorn, J. U., Rodríguez-Luna, E., Palacios, E., Heymann, E. W., Kierulff, M. C. M., Yongcheng, L., Supriatna, J., Roos, C., Walker, S., & Aguiar, J. M. (2007). ''Primates in Peril: The World's 25 Most Endangered Primates, 2006–2008.'' Primate Conservation 2007 (22): 1-40</ref> If following the taxonomic treatment advocated in ''[[Mammal Species of the World]]'',<ref name=msw3/> all species except the [[Udzungwa red colobus|Udzungwa]], [[Semliki red colobus|Semliki]], [[Oustalet's red colobus|Oustalet's]] and [[Thollon's red colobus|Thollon's]] red colobus monkeys (which are [[Vulnerable species|vulnerable]]) are assessed by the [[IUCN]] as [[endangered]] or [[critically endangered]].<ref>[[IUCN]] 2008. ''[http://www.iucnredlist.org 2008 IUCN Red List of Threatened Species.]'' Downloaded on 12 September 2011.</ref> Due to this sensitivity, it has been argued that they are [[Indicator Species|indicator species]] for the health of Africa's tropical forests, leading researchers to urge that they be conserved as [[umbrella species]].<ref>{{Cite journal |last1=Linder |first1=Joshua M. |last2=Cronin |first2=Drew T. |last3=Ting |first3=Nelson |last4=Abwe |first4=Ekwoge E. |last5=Aghomo |first5=Florence |last6=Davenport |first6=Tim R. B. |last7=Detwiler |first7=Kate M. |last8=Galat |first8=Gérard |last9=Galat-Luong |first9=Anh |last10=Hart |first10=John A. |last11=Ikemeh |first11=Rachel A. |author-link11=Rachel Ikemeh |last12=Kivai |first12=Stanislaus M. |last13=Koné |first13=Inza |last14=Konstant |first14=William |last15=Kujirakwinja |first15=Deo |date=2024-04-30 |title=To conserve African tropical forests, invest in the protection of its most endangered group of monkeys, red colobus |journal=Conservation Letters |volume=17 |issue=3 |language=en |doi=10.1111/conl.13014 |issn=1755-263X |doi-access=free|bibcode=2024ConL...17E3014L }}</ref>

==Social behavior==
Groups often establish a [[dominance hierarchy]] determined by aggressive behavior. Food, grooming, and sexual partners are distributed amongst higher-ranking individuals initially, followed by lower-ranking individuals.<ref>Mbora, D. N. M., & Meikle, D. B. (2004). Forest fragmentation and the distribution, abundance and conservation of the tana river red colobus (procolobus rufomitratus). Biological Conservation, 118(1), 67-77.</ref> They live in large troops which can number up to 80 individuals, the average being somewhere around 20 to 40 monkeys. These groups tend to have more females than males at a 2:1 ratio. The few male monkeys in the troop usually stay with their original group, but the females have a tendency to move together in small numbers, probably in close familial relationships, between troops. Red colobus monkeys have overlapping ranges with other troops. Interactions between troops can be either tense, though passive, or violent, with one troop trying to supplant the other. These fights are usually based on a number of factors including physical condition, fighting ability, and the number of males in the opposing troop. Females are also known to take part in these competitions for dominance, and often fight together. Mother-infant bonds among the red colobus are quite strong, as they are with most primates. The mothers are usually reluctant to allow other females from their troop to carry their babies. This may be owing to the fact that many of the females in a troop are not related as they move between groups quite frequently.<ref>{{cite book|last=Oates|first=J|title=Colobine monkeys: their ecology, behavior, and evolution|year=1994|publisher=The Syndicate Press of the University of Cambridge|location=Cambridge|pages=107–118}}</ref>

Another remarkable behavior occurs when red colobus monkeys reach their restless and somewhat nomadic adolescence. This period is when the young monkeys leave their natal troops and look for another troop to join. This is not easy, as most troops are very suspicious and can get deadly when new monkeys try to join. The red colobus monkeys have adapted their behavior by joining troops of [[green monkey]]s that are near the potential red colobus troops that they wish to join, and living amongst them in order to spy on their potential new families. In one notable case, an adolescent male red colobus spent two years with a green monkey troop in order to spy in safety on a prospective troop in this manner.<ref>{{cite journal|last=Starin|first=E.D.|title=The kindness of strangers|journal=Natural History|year=1993|volume=102|issue=10|page=44}}</ref>

==Diet==
The diet of red colobus monkeys consists mainly of young leaves, flowers, and unripe fruit.<ref name="Molecular 2002">Foraging challenges of red colobus monkeys: influence of nutrients and secondary compounds Original Research Article Comparative Biochemistry and Physiology - Part A: Molecular & Integrative Physiology, Volume 133, Issue 3, November 2002, Pages 861-875 Colin A. Chapman, Lauren J. Chapman</ref> They are also known to eat [[charcoal]] or [[clay]] to help combat the [[cyanide]] some leaves may contain. This medicinal cure for the plants they eat appears to be passed on from mother to child.<ref>{{cite journal|last=Bruemmer|first=F|title=A charcoal a day|journal=Natural History|year=2010|volume=119|issue=2|pages=2–4}}</ref> However, their stomachs are able to digest some toxic plants that other primates cannot.<ref name="Molecular 2002"/> Red colobus monkeys are extraordinarily adapted to their entirely vegetarian and widely varied diet. They have special [[salivary glands]], which are larger and produce more specialized saliva to help facilitate the breakdown of leaves before they reach the digestive tract. The stomach of the red colobus is also sacculated into four chambers (similar to unrelated [[ungulate]]s) and larger than those of other monkeys of a comparative size. This allows for longer digestion, so that most of the nutrients can be gleaned from the relatively low nutrient food.<ref>{{cite book|last=Swindler|first=D.|title=Introduction to the primates|url=https://archive.org/details/introductiontopr0000swin|url-access=registration|year=1998|publisher=University of Washington Press|location=Seattle|page=[https://archive.org/details/introductiontopr0000swin/page/47 47]|isbn=9780295977041 }}</ref>

==Chimpanzee predation==
Research indicates that [[Common chimpanzee|chimpanzee]] predation may be a major [[Natural selection|selection]] factor on some red colobus populations.<ref>Stanford, C. B. (1995). The influence of chimpanzee predation on group size and anti-predator behaviour in red colobus monkeys. Animal Behaviour, 49(3), 577-587.</ref> Although chimpanzees primarily eat fruit, leaves, and insects, if the opportunity to eat meat arises, they will pursue it. In addition to sustenance, evidence suggests that chimpanzees prey on red colobus to reinforce social status, as well as to attract sexual partners.<ref>Chimpanzee and Red Colobus: The Ecology of Predator and Prey: By Craig B. Stanford, Harvard University Press, 1999, 296 pp; {{ISBN|0-674-11667-4}} Physiology & Behavior, Volume 76, Issue 1, 1 May 2002, Pages 171-172 David P. Barash</ref> When under attack, the red colobus males congregate to defend their group, while the females gather their infants and try to escape. Larger groups of red colobuses have an increased likelihood of attracting chimpanzees, but they also tend to have more defending males, making it harder for chimpanzees to hunt successfully.<ref>Mbora, D. N. M., & Meikle, D. B. (2004). Forest fragmentation and the distribution, abundance and conservation of the tana river red colobus (Procolobus rufomitratus). Biological Conservation, 118(1), 67-77.</ref> Furthermore, while under attack, male colobuses shout an alarm call to let others know if chimpanzees or other predators are in the area. The frequency of these shouts is increased with the number of females and infants in the group as a way to spread the news of an expected attack.<ref>Schel, A. M., Candiotti, A., & Zuberbühler, K. (2010). Predator-deterring alarm call sequences in guereza colobus monkeys are meaningful to conspecifics. Animal Behaviour, 80(5), 799-808.</ref> At Gombe National Park in Tanzania C.B. Stanford estimated that the Gombe chimps kill up to 100 colobus monkeys a year, which he believes to be close to a fifth of the colobus population within their territory.<ref>Stanford, C., (1995). To catch a colobus. Natural History, 104(1) 48</ref> Another study confirms that chimpanzees are annually responsible for 6-12 percent of red colobus female and infant death in Ngogo, Kibale National Park, which has one of the largest populations of chimpanzees. It seems that chimpanzees tend to favor the red colobus as prey whenever the two are in the same territory, hunting in groups of up to 20 individual chimps. During these hunts in Tai, Gombe, Ngogo, and Mahale National Parks, ≥ 87 percent of the hunts made more than one kill. The highest amount of kills seen during this study was 13, most of which were infants.<ref>Watts, D. P., & Mitani, J. C., (2002). Hunting behavior of chimpanzees at Ngogo, Kibale National
Park, Uganda. International Journal of Primatology, 23(1) 1-28</ref>

==Species==
{{Species table |no-note=y |genus=[[Piliocolobus]] |authority-name=[[Alphonse Trémeau de Rochebrune|Rochebrune]] |authority-year=1887 |species-count=sixteen|narrow-percent=75}}
{{Species table/row
|name=[[Bouvier's red colobus]] |binomial=P. bouvieri
|image= |image-size=135px |image-alt=
|authority-name=[[Alphonse Trémeau de Rochebrune|Rochebrune]] |authority-year=1887 |authority-not-original=
|range=[[Democratic Republic of the Congo|Congo]] (in purple on left) |range-image=File:Distribution Piliocolobus species.png |range-image-size=180px
|size={{convert|41|–|70|cm|in|0|abbr=on}} long, plus {{convert|42|–|80|cm|in|0|abbr=on}} tail<ref name="FieldAfrica103"/><!-- Genus measurements-->
|habitat=Forest<ref name="IUCNBouvier'sredcolobus"/>
|hunting=Fruit, seeds, and leaves<ref name="FieldAfrica103"/><!-- Genus foods-->
|iucn-status=EN |population=Unknown
|direction={{decrease|Population declining}}<ref name="IUCNBouvier'sredcolobus"/>
}}
{{Species table/row
|name=[[Foa's red colobus]] |binomial=P. foai
|image= |image-size=180px |image-alt=
|authority-name=[[Eugène de Pousargues|Pousargues]] |authority-year=1899 |authority-not-original=yes
|range=Congo (in black, bottom right) |range-image=File:Distribution_Piliocolobus_species.png |range-image-size=180px
|size={{convert|41|–|70|cm|in|0|abbr=on}} long, plus {{convert|42|–|80|cm|in|0|abbr=on}} tail<ref name="FieldAfrica103"/><!-- Genus measurements-->
|habitat=Forest<ref name="IUCNFoasredcolobus"/>
|hunting=Fruit, seeds, and leaves<ref name="FieldAfrica103"/><!-- Genus foods-->
|iucn-status=EN |population=Unknown
|direction={{decrease|Population declining}}<ref name="IUCNFoasredcolobus"/>
}}
{{Species table/row
|name=[[Lang's red colobus]] |binomial=P. langi
|image= |image-size=135px |image-alt=
|authority-name=[[Joel Asaph Allen|J. A. Allen]] |authority-year=1925 |authority-not-original=yes
|range=Congo |range-image=File:Distribution Piliocolobus langi.png |range-image-size=180px
|size={{convert|41|–|70|cm|in|0|abbr=on}} long, plus {{convert|42|–|80|cm|in|0|abbr=on}} tail<ref name="FieldAfrica103"/><!-- Genus measurements-->
|habitat=Forest<ref name="IUCNLang'sredcolobus"/>
|hunting=Fruit, seeds, and leaves<ref name="FieldAfrica103"/><!-- Genus foods-->
|iucn-status=EN |population=Unknown
|direction={{decrease|Population declining}}<ref name="IUCNLang'sredcolobus"/>
}}
{{Species table/row
|name=[[Lomami red colobus]] |binomial=P. parmentieri
|image= |image-size=180px |image-alt=
|authority-name=[[Marc Colyn|Colyn]] & [[Walter Verheyen|Verheyen]] |authority-year=1987 |authority-not-original=yes
|range=Congo |range-image=File:Distribution Piliocolobus parmentieri.png |range-image-size=180px
|size={{convert|41|–|70|cm|in|0|abbr=on}} long, plus {{convert|42|–|80|cm|in|0|abbr=on}} tail<ref name="FieldAfrica103"/><!-- Genus measurements-->
|habitat=Forest<ref name="IUCNLomamiredcolobus"/>
|hunting=Fruit, seeds, and leaves<ref name="FieldAfrica103"/><!-- Genus foods-->
|iucn-status=EN |population=Unknown
|direction={{decrease|Population declining}}<ref name="IUCNLomamiredcolobus"/>
}}
{{Species table/row
|name=[[Miss Waldron's red colobus]] |binomial=P. waldronae
|image= |image-size=135px |image-alt=
|authority-name=[[Robert William Hayman|Hayman]] |authority-year=1936 |authority-not-original=yes
|range=Western Africa |range-image=File:Miss-waldrons-red-colobus-range.svg |range-image-size=180px
|size={{convert|47|–|63|cm|in|0|abbr=on}} long, plus {{convert|52|–|75|cm|in|0|abbr=on}} tail<ref name="FieldAfrica110"/>
|habitat=Forest<ref name="IUCNMisswaldron'sredcolobus"/>
|hunting=Fruit, seeds, leaves, buds, and flowers<ref name="FieldAfrica110"/>
|iucn-status=CR |population=Unknown
|direction={{decrease|Population declining}}<ref name="IUCNMisswaldron'sredcolobus"/>
}}
{{Species table/row
|name=[[Niger Delta red colobus]] |binomial=P. epieni
|image= |image-size=135px |image-alt=
|authority-name=[[Peter Grubb (zoologist)|Grubb]] & [[C. B. Powell (zoologist)|Powell]] |authority-year=1999 |authority-not-original=yes
|range=Western Africa |range-image= |range-image-size=180px
|size={{convert|41|–|70|cm|in|0|abbr=on}} long, plus {{convert|42|–|80|cm|in|0|abbr=on}} tail<ref name="FieldAfrica103"/><!-- Genus measurements-->
|habitat=Forest<ref name="IUCNNigerDeltaredcolobus"/>
|hunting=Fruit, seeds, and leaves<ref name="FieldAfrica103"/><!-- Genus foods-->
|iucn-status=CR |population=Unknown
|direction={{decrease|Population declining}}<ref name="IUCNNigerDeltaredcolobus"/>
}}
{{Species table/row
|name=[[Oustalet's red colobus]] |binomial=P. oustaleti
|image= |image-size=135px |image-alt=
|authority-name=[[Édouard Louis Trouessart|Trouessart]] |authority-year=1906 |authority-not-original=yes
|range=Congo (in green) |range-image=File:Distribution Piliocolobus species.png |range-image-size=180px
|size={{convert|41|–|70|cm|in|0|abbr=on}} long, plus {{convert|42|–|80|cm|in|0|abbr=on}} tail<ref name="FieldAfrica103"/><!-- Genus measurements-->
|habitat=Forest<ref name="IUCNOustalet'sredcolobus"/>
|hunting=Fruit, seeds, and leaves<ref name="FieldAfrica103"/><!-- Genus foods-->
|iucn-status=VU |population=Unknown
|direction={{decrease|Population declining}}<ref name="IUCNOustalet'sredcolobus"/>
}}
{{Species table/row
|name=[[Pennant's colobus]] |binomial=P. pennantii
|image=File:Piliocolobus_pennantii.jpg |image-size=135px |image-alt=Drawing of gray and brown monkey
|authority-name=[[George Robert Waterhouse|Waterhouse]] |authority-year=1838 |authority-not-original=yes
|range=Western Africa |range-image=File:Pennant%27s_Colobus_area.png |range-image-size=160px
|size={{convert|53|–|63|cm|in|0|abbr=on}} long, plus {{convert|60|–|70|cm|in|0|abbr=on}} tail<ref name="ADWPennantscolobus"/>
|habitat=Forest<ref name="IUCNPennantscolobus"/>
|hunting=Leaves and shoots, as well as seeds and fruit<ref name="ADWPennantscolobus"/>
|iucn-status=CR |population=Unknown
|direction={{decrease|Population declining}}<ref name="IUCNPennantscolobus"/>
}}
{{Species table/row
|name=[[Preuss's red colobus]] |binomial=P. preussi
|image=File:Preuss%27s_red_colobus.jpg |image-size=90px |image-alt=Brown monkey
|authority-name=[[Paul Matschie|Matschie]] |authority-year=1900 |authority-not-original=
|range=Western Africa |range-image=File:Preuss%27s_Red_Colobus_area.png |range-image-size=160px
|size={{convert|41|–|70|cm|in|0|abbr=on}} long, plus {{convert|42|–|80|cm|in|0|abbr=on}} tail<ref name="FieldAfrica103"/><!-- Genus measurements-->
|habitat=Forest<ref name="IUCNPreusssredcolobus"/>
|hunting=Fruit, seeds, and leaves<ref name="FieldAfrica103"/><!-- Genus foods-->
|iucn-status=CR |population=Unknown
|direction={{decrease|Population declining}}<ref name="IUCNPreusssredcolobus"/>
}}
{{Species table/row
|name=[[Semliki red colobus]] |binomial=P. semlikiensis
|image= |image-size=135px |image-alt=
|authority-name=[[Marc Colyn|Colyn]] |authority-year=1991 |authority-not-original=yes
|range=Congo (in dark blue on right) |range-image=File:Distribution Piliocolobus species.png |range-image-size=180px
|size={{convert|41|–|70|cm|in|0|abbr=on}} long, plus {{convert|42|–|80|cm|in|0|abbr=on}} tail<ref name="FieldAfrica103"/><!-- Genus measurements-->
|habitat=Forest<ref name="IUCNSemlikiredcolobus"/>
|hunting=Fruit, seeds, and leaves<ref name="FieldAfrica103"/><!-- Genus foods-->
|iucn-status=VU |population=Unknown
|direction={{decrease|Population declining}}<ref name="IUCNSemlikiredcolobus"/>
}}
{{Species table/row
|name=[[Tana River red colobus]] |binomial=P. rufomitratus
|image=File:Piliocolobus_rufomitratus_35499959_(cropped).jpg |image-size=180px |image-alt=Brown monkey
|authority-name=[[Wilhelm Peters|Peters]] |authority-year=1879 |authority-not-original=yes
|range=[[Kenya]] |range-image= |range-image-size=180px
|size={{convert|45|–|67|cm|in|0|abbr=on}} long, plus {{convert|52|–|80|cm|in|0|abbr=on}} tail<ref name="ADWTanaRiverredcolobus"/>
|habitat=Forest, shrubland, and inland wetlands<ref name="IUCNTanaRiverredcolobus"/>
|hunting=Leaves, fruit, and seeds, as well as flowers<ref name="ADWTanaRiverredcolobus"/>
|iucn-status=CR |population=Unknown
|direction={{decrease|Population declining}}<ref name="IUCNTanaRiverredcolobus"/>
}}
{{Species table/row
|name=[[Thollon's red colobus]] |binomial=P. tholloni
|image= |image-size=180px |image-alt=
|authority-name=[[Alphonse Milne-Edwards|A. Milne-Edwards]] |authority-year=1886 |authority-not-original=yes
|range=Congo (in orange) |range-image=File:Distribution_Piliocolobus_species.png |range-image-size=180px
|size={{convert|41|–|70|cm|in|0|abbr=on}} long, plus {{convert|42|–|80|cm|in|0|abbr=on}} tail<ref name="FieldAfrica103"/><!-- Genus measurements-->
|habitat=Forest<ref name="IUCNThollonsredcolobus"/>
|hunting=Leaves, fruit, and seeds, as well as flowers<ref name="IUCNThollonsredcolobus"/>
|iucn-status=VU |population=Unknown
|direction={{decrease|Population declining}}<ref name="IUCNThollonsredcolobus"/>
}}
{{Species table/row
|name=[[Udzungwa red colobus]] |binomial=P. gordonorum
|image=File:Udzungwa_Red_Colobus_Stevage.JPG |image-size=180px |image-alt=Gray monkey
|authority-name=[[Paul Matschie|Matschie]] |authority-year=1900 |authority-not-original=
|range=Southeastern Africa |range-image=File:Udzungwa_Red_Colobus_area.png |range-image-size=160px
|size={{convert|41|–|70|cm|in|0|abbr=on}} long, plus {{convert|42|–|80|cm|in|0|abbr=on}} tail<ref name="FieldAfrica103"/><!-- Genus measurements-->
|habitat=Forest<ref name="IUCNUdzungwaredcolobus"/>
|hunting=Fruit, seeds, and leaves<ref name="FieldAfrica103"/><!-- Genus foods-->
|iucn-status=VU |population=35,000
|direction={{decrease|Population declining}}<ref name="IUCNUdzungwaredcolobus"/>
}}
{{Species table/row
|name=[[Ugandan red colobus]] |binomial=P. tephrosceles
|image=File:Ugandan_red_colobus_(Procolobus_tephrosceles).jpg |image-size=119px |image-alt=Brown monkey
|authority-name=[[Daniel Giraud Elliot|Elliot]]|authority-not-original=yes |authority-year=1907
|range=Eastern Africa |range-image=File:Distribution_Piliocolobus_tephrosceles.jpg |range-image-size=178px
|size={{convert|41|–|70|cm|in|0|abbr=on}} long, plus {{convert|42|–|80|cm|in|0|abbr=on}} tail<ref name="FieldAfrica103"/><!-- Genus measurements-->
|habitat=Forest and savanna<ref name="IUCNUgandanredcolobus"/>
|hunting=Fruit, seeds, and leaves<ref name="FieldAfrica103"/><!-- Genus foods-->
|iucn-status=EN |population=Unknown
|direction={{decrease|Population declining}}<ref name="IUCNUgandanredcolobus"/>
}}
{{Species table/row
|name=[[Western red colobus]] |binomial=P. badius
|image=File:Western_Red_Colobus_Monkey_(32257813804).jpg |image-size=180px |image-alt=Brown monkey
|authority-name=[[Robert Kerr (writer)|Kerr]] |authority-year=1792 |authority-not-original=yes
|subspecies={{Collapsible list |expand=yes |title=Three subspecies |bullets=on
| ''P. b. badius'' (Bay red colobus)
| ''P. b. temminckii'' ([[Temminck's red colobus]])
}}
|range=Western Africa |range-image=File:Western_Red_Colobus_area.png |range-image-size=160px
|size={{convert|45|–|67|cm|in|0|abbr=on}} long, plus {{convert|52|–|80|cm|in|0|abbr=on}} tail
|habitat=Forest and savanna<ref name="IUCNWesternredcolobus"/>
|hunting=Leaves, seeds, unripe fruit, and shoots<ref name="ADWWesternredcolobus"/>
|iucn-status=EN |population=Unknown
|direction={{decrease|Population declining}}<ref name="IUCNWesternredcolobus"/>
}}
{{Species table/row
|name=[[Zanzibar red colobus]] |binomial=P. kirkii
|image=File:Piliocolobus_kirkii_7.jpg |image-size=119px |image-alt=Gray monkey
|authority-name=[[John Edward Gray|Gray]] |authority-year=1868 |authority-not-original=yes
|range=Eastern Africa |range-image=File:Procolobus_kirkii_distribution_(2).svg |range-image-size=152px
|size={{convert|41|–|70|cm|in|0|abbr=on}} long, plus {{convert|42|–|80|cm|in|0|abbr=on}} tail<ref name="FieldAfrica103"/><!-- Genus measurements-->
|habitat=Forest and shrubland<ref name="IUCNZanzibarredcolobus"/>
|hunting=Leaves, fruit, and seeds, as well as flowers<ref name="ADWZanzibarredcolobus"/>
|iucn-status=EN |population=5,900
|direction={{decrease|Population declining}}<ref name="IUCNZanzibarredcolobus"/>
}}
{{Species table/end}}

[[Colin Groves]] did not recognize all these species in the 2005 ''Mammal Species of the World'', but he subsequently agreed that additional species should be recognized.<ref name=msw3/><ref>{{cite book|title=An Introduction to Primate Conservation|author=Groves, C.P.|author-link=Colin Groves|editor1=Wich, Serge A.|editor2=Marshall, Andrew J.|chapter=Species concepts and conservation|pages=45–47|year=2016|publisher=Oxford University Press |isbn=9780198703396}}</ref> These species are generally agreed upon although different authors may use slightly different taxonomies. For example, the Integrated Taxonomic Information System, IUCN Red List, and Mammal Diversity Database list Temminck's red colobus as a subspecies of the Western red colobus, ''Piliocolobus badius temminckii'',<ref name=oates/><ref>{{cite web|title=''Piliocolobus badius temminckii''|url=https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=945544#null|publisher=ITIS|access-date=2019-01-23}}</ref><ref>{{cite iucn |author1=Minhós, T. |year=2020 |title=''Piliocolobus badius ssp. temminckii'' |volume=2020 |page=e.T18247A92648587 |doi=10.2305/IUCN.UK.2020-1.RLTS.T18247A92648587.en |access-date=29 January 2022}}</ref><ref>{{cite web |url= http://www.mammaldiversity.org/explore.html#species-id=1000641 |title= ''Piliocolobus badius'' (Kerr, 1792)|author=<!--Not stated--> |date= |website= Mammal Diversity Database |publisher= American Society of Mammalogists |access-date= 29 January 2022}}</ref> but ''The Handbook of Mammals of the World'' regarded it as a full species.<ref name=handbook/> In addition to the recognized species, there is also a hybrid zone in the eastern [[Democratic Republic of Congo]] where hybrids of several local species exist.<ref name=oates>{{cite web|title=Conservation consequences of unstable taxonomies: The case of the red colobus monkeys|author=Oates, John & Ting, Nelson|url=https://molecular-anthro.uoregon.edu/downloads/Oates_and_Ting_2015.pdf|publisher=Molecular Anthropology Group at the University of Oregon|year=2015|access-date=2019-01-23}}</ref>

==References==
{{Reflist|refs=
<ref name="FieldAfrica103">[[#CITEREF AfricanMammals|Kingdon 2015]], p. 103</ref>
<ref name="IUCNWesternredcolobus">{{cite iucn |last1=McGraw |first1=S. |last2=Minhós |first2=T. |last3=Bersacola |first3=E. |last4=Ferreira da Silva |first4=M. J. |last5=Galat |first5=G. |last6=Galat-Luong |first6=A. |last7=Gonedelé Bi |first7=S. |last8=Mayhew |first8=M. |last9=Oates |first9=J. F. |last10=Starin |first10=E. D. |title=''Piliocolobus badius'' |volume=2020 |page=e.T161247840A161259430 |date=2020 |doi=10.2305/IUCN.UK.2020-1.RLTS.T161247840A161259430.en}}</ref>
<ref name="ADWWesternredcolobus">{{cite web |first1=Kathleen |last1=Vasselin |title=''Piliocolobus badius'' |url=https://animaldiversity.org/accounts/Piliocolobus_badius/ |date=2011 |website=[[Animal Diversity Web]] |publisher=[[University of Michigan]] |access-date=July 24, 2023 |archive-date=August 12, 2023 |archive-url=https://web.archive.org/web/20230812150634/https://animaldiversity.org/accounts/Piliocolobus_badius/ |url-status=live }}</ref>
<ref name="IUCNFoasredcolobus">{{cite iucn |last1=Hart |first1=J. |last2=Ting |first2=N. |last3=Maisels |first3=F. |title=''Piliocolobus foai'' |volume=2020 |page=e.T18252A92659769 |date=2020 |doi=10.2305/IUCN.UK.2020-1.RLTS.T18252A92659769.en}}</ref>
<ref name="IUCNLomamiredcolobus">{{cite iucn |last1=Hart |first1=J. A. |last2=Detwiler |first2=K. M. |title=''Piliocolobus parmentieri'' |amends=2019 |volume=2020 |page=e.T40648A166604269 |date=2020 |doi=10.2305/IUCN.UK.2020-1.RLTS.T40648A166604269.en}}</ref>
<ref name="IUCNLang'sredcolobus">{{cite iucn |last1=Hart |first1=J. |last2=Laudisoit |first2=A. |last3=Struhsaker |first3=T. T. |last4=Oates |first4=J. F. |title=''Piliocolobus langi'' |amends=2019 |volume=2020 |page=e.T18261A166605018 |date=2020 |doi=10.2305/IUCN.UK.2020-1.RLTS.T18261A166605018.en}}</ref>
<ref name="IUCNMisswaldron'sredcolobus">{{cite iucn |last1=Oates |first1=J. F. |last2=Koné |first2=I. |last3=McGraw |first3=S. |last4=Osei |first4=D. |title=''Piliocolobus waldroni'' |amends=2019 |volume=2020 |page=e.T18248A166620835 |date=2020 |doi=10.2305/IUCN.UK.2020-1.RLTS.T18248A166620835.en}}</ref>
<ref name="FieldAfrica110">[[#CITEREF AfricanMammals|Kingdon 2015]], p. 110</ref>
<ref name="IUCNOustalet'sredcolobus">{{cite iucn |last1=Hart |first1=J. |last2=Maisels |first2=F. |last3=Oates |first3=J. F. |last4=Laudisoit |first4=A. |last5=Hicks |first5=T. C. |last6=Struhsaker |first6=T. T. |title=''Piliocolobus oustaleti'' |amends=2019 |volume=2020 |page=e.T18255A166598553 |date=2020 |doi=10.2305/IUCN.UK.2020-1.RLTS.T18255A166598553.en}}</ref>
<ref name="IUCNUdzungwaredcolobus">{{cite iucn |last1=Rovero |first1=F. |last2=Barelli |first2=C |last3=Butynski |first3=T. M. |last4=Marshall |first4=A. J. |last5=Struhsaker |first5=T. T. |title=''Piliocolobus gordonorum'' |volume=2019 |page=e.T40015A92629595 |date=2019 |doi=10.2305/IUCN.UK.2019-3.RLTS.T40015A92629595.en}}</ref>
<ref name="IUCNZanzibarredcolobus">{{cite iucn |last1=Davenport |first1=T. |title=''Piliocolobus kirkii'' |errata=2020 |volume=2019 |page=e.T39992A168568335 |date=2019 |doi=10.2305/IUCN.UK.2019-3.RLTS.T39992A168568335.en}}</ref>
<ref name="ADWZanzibarredcolobus">{{cite web |first1=Josephine |last1=Smit |title=''Piliocolobus kirkii'' |url=https://animaldiversity.org/accounts/Piliocolobus_kirkii/ |date=2012 |website=[[Animal Diversity Web]] |publisher=[[University of Michigan]] |access-date=July 24, 2023 |archive-date=August 12, 2023 |archive-url=https://web.archive.org/web/20230812150711/https://animaldiversity.org/accounts/Piliocolobus_kirkii/ |url-status=live }}</ref>
<ref name="IUCNBouvier'sredcolobus">{{cite iucn |last1=Maisels |first1=F. |last2=Devreese |first2=L. |title=''Piliocolobus bouvieri'' |amends=2020 |volume=2022 |page=e.T18250A210339606 |date=2022 |doi=10.2305/IUCN.UK.2022-1.RLTS.T18250A210339606.en}}</ref>
<ref name="IUCNNigerDeltaredcolobus">{{cite iucn |last1=Ikemeh |first1=R. |last2=Oates |first2=J. F. |last3=Inaoyom |first3=I. |title=''Piliocolobus epieni'' |volume=2019 |page=e.T41024A92656391 |date=2019 |doi=10.2305/IUCN.UK.2019-3.RLTS.T41024A92656391.en}}</ref>
<ref name="IUCNPennantscolobus">{{cite iucn |last1=Cronin |first1=D. T. |title=''Piliocolobus pennantii'' |volume=2019 |page=e.T41025A92653653 |date=2019 |doi=10.2305/IUCN.UK.2019-3.RLTS.T41025A92653653.en}}</ref>
<ref name="ADWPennantscolobus">{{cite web |first1=Kasi |last1=Gilbert |title=''Piliocolobus pennantii'' |url=https://animaldiversity.org/accounts/Piliocolobus_pennantii/ |date=2011 |website=[[Animal Diversity Web]] |publisher=[[University of Michigan]] |access-date=July 24, 2023 |archive-date=July 24, 2023 |archive-url=https://web.archive.org/web/20230724210823/https://animaldiversity.org/accounts/Piliocolobus_pennantii/ |url-status=live }}</ref>
<ref name="IUCNPreusssredcolobus">{{cite iucn |last1=Linder |first1=J. |last2=Morgan |first2=B. J. |last3=Abwe |first3=E. E. |last4=Jost Robinson |first4=C. A. |last5=Imong |first5=I. |last6=Oates |first6=J. F. |title=''Piliocolobus preussi'' |volume=2019 |page=e.T41026A92633245 |date=2019 |doi=10.2305/IUCN.UK.2019-3.RLTS.T41026A92633245.en}}</ref>
<ref name="IUCNSemlikiredcolobus">{{cite iucn |last1=Maisels |first1=F. |last2=Ting |first2=N. |title=''Piliocolobus semlikiensis'' |volume=2020 |page=e.T92657343A92657454 |date=2020 |doi=10.2305/IUCN.UK.2020-1.RLTS.T92657343A92657454.en}}</ref>
<ref name="IUCNTanaRiverredcolobus">{{cite iucn |last1=Butynski |first1=T. M. |last2=de Jong |first2=Y. A. |last3=King |first3=J. |title=''Piliocolobus rufomitratus'' |amends=2019 |volume=2020 |page=e.T136939A166599765 |date=2020 |doi=10.2305/IUCN.UK.2020-1.RLTS.T136939A166599765.en}}</ref>
<ref name="ADWTanaRiverredcolobus">{{cite web |first1=Jeremy |last1=Jones |title=''Piliocolobus rufomitratus'' |url=https://animaldiversity.org/accounts/Piliocolobus_rufomitratus/ |date=2002 |website=[[Animal Diversity Web]] |publisher=[[University of Michigan]] |access-date=July 24, 2023 |archive-date=August 12, 2023 |archive-url=https://web.archive.org/web/20230812150937/https://animaldiversity.org/accounts/Piliocolobus_rufomitratus/ |url-status=live }}</ref>
<ref name="IUCNUgandanredcolobus">{{cite iucn |last1=Struhsaker |first1=T. T. |last2=Ting |first2=N. |title=''Piliocolobus tephrosceles'' |errata=2020 |volume=2020 |page=e.T18256A171760021 |date=2020 |doi=10.2305/IUCN.UK.2020-1.RLTS.T18256A171760021.en}}</ref>
<ref name="IUCNThollonsredcolobus">{{cite iucn |last1=Detwiler |first1=K. M. |last2=Hart |first2=J. A. |last3=Maisels |first3=F. |last4=Thompson |first4=J. |last5=Reinartz |first5=G. |last6=Struhsaker |first6=T. T. |title=''Piliocolobus tholloni'' |amends=2019 |volume=2020 |page=e.T18257A166598109 |date=2020 |doi=10.2305/IUCN.UK.2020-1.RLTS.T18257A166598109.en}}</ref>
}}

==Sources==
{{refbegin}}
* {{cite book |title=The Kingdon Field Guide to African Mammals |edition=Second |last=Kingdon |first=Jonathan |date=2015 |publisher=[[Bloomsbury Publishing]] |isbn=978-1-4729-2531-2 |ref=CITEREF_AfricanMammals}}
{{refend}}

{{C.Colobinae nav}}
{{Haplorhini|C.}}
{{Taxonbar|from=Q1029638}}
{{Authority control}}

[[Category:Piliocolobus|&nbsp;]]
[[Category:Primates of Africa|&nbsp;]]
[[Category:Taxa named by Alphonse Trémeau de Rochebrune]]