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{{Short description|Species of New World monkey}}
{{Taxobox
{{Speciesbox
| name = Spix's night monkey<ref name=msw3>{{MSW3 Groves|pages=141|id=12100314}}</ref>
| name = Spix's night monkey<ref name=msw3>{{MSW3 Groves|pages=141|id=12100314}}</ref>
| image = Night Monkey.jpg
| image = Night Monkey.jpg
| status = LC
| status = LC
| status_system = iucn3.1
| status_system = IUCN3.1
| status_ref = <ref name=iucn>{{IUCN2011.2 |assessors = Morales-Jiménez, A. L., Link, A., Cornejo, F. & Stevenson, P. | year = 2008 | title = Aotus vociferans | id = 41544 | version=2011.2 | downloaded = 20 January 2012}}</ref>
| status_ref = <ref name="iucn status 20 November 2021">{{cite iucn |author=Guzmán-Caro, D.C. |author2=Lynch Alfaro, J.W. |author3=Stevenson, P.R. |author4=de la Torre, S. |author5=Cornejo, F.M. |author6=Maldonado, A. |author7=Moscoso, P. |date=2021 |title=''Aotus vociferans'' |volume=2021 |page=e.T41544A191682904 |doi=10.2305/IUCN.UK.2021-1.RLTS.T41544A191682904.en |access-date=20 November 2021}}</ref>
| regnum = [[Animalia]]
| genus = Aotus
| phylum = [[Chordata]]
| species = vociferans
⚫
| authority = ([[Johann Baptist von Spix|Spix]], 1823)
| classis = [[Mammalia]]
| ordo = [[Primates]]
| familia = [[Aotidae]]
| genus = ''[[night monkey|Aotus]]''
| species = '''''A. vociferans'''''
| binomial = ''Aotus vociferans''
⚫
| binomial_authority = ([[Johann Baptist von Spix|Spix]], 1823)
| range_map = Spix's Night Monkey area.png
| range_map = Spix's Night Monkey area.png
| range_map_caption = Spix's Night Monkey range
| range_map_caption = Spix's Night Monkey range
}}
}}


'''Spix's night monkey''' (''Aotus vociferans'') is a [[night monkey]] [[species]] from [[South America]]. It is found in [[Brazil]], [[Colombia]], [[Ecuador]] and [[Peru]].
'''Spix's night monkey''' ('''''Aotus vociferans'''''), also known as the '''Colombian gray night monkey''', '''noisy night monkey''' and '''Spix's owl monkey''', is a [[night monkey]] [[species]] from [[South America]]. It is found in [[Brazil]], [[Colombia]], [[Ecuador]] and [[Peru]].

The Spix's night monkey is a small bodied monkey species usually having a mass of
around one kilogram. It belongs to the only nocturnal genus of New World primates
Aotus. This type of monkey can leap farther than most due to it having longer arms than
legs. The monkey averages 0.5 meters in height. The night monkey is considered to be
a new world monkey.<ref>"Aotus: The Owl Monkey's Natural History." KCCMR . Web. 8 Dec. 2015.</ref>

The social behavior of the ''Aotus vociferans'' is group based. These groups
usually consist of [[breeding pair]]s and their offspring. This species has a
monogamous mating system. After the offspring are born, the father
becomes the main caretaker, only giving up the offspring for them to suckle. The offspring will
usually stay with their birth group until they reach two and a half to three and a half years
old. An exception to this if the male breeding partner is no longer present for any reason
(usually only caused by death), then the offspring may stay with its birth group for only
twelve weeks to the normal departure age. Social grooming in this species of monkey is
uncommon.<ref name="theprimata.com">"{{usurped|1=[https://web.archive.org/web/20080208223916/http://www.theprimata.com/aotus_vociferans.html Spix's Owl Monkey (Aotus Vociferans)]}}." Spix's Owl Monkey (Aotus Vociferans) . 25 Apr. 2007. Web. 8 Dec. 2015.</ref>

The ''Aotus vociferans'' reproduce usually by giving birth to one offspring. Although, like with humans, there are cases of twins. The female breeding partner carries the offspring in interbirth for around one year. Both mating and birthing occur between November and
January. For this species, [[copulation (zoology)|copulation]] attempts tend to be short and quick, starting with the male and female approaching one
another. Then the male performs a social sniff. During the original sniff, the female may
reciprocate but not always. Sexual intercourse usually consists of only three
to four thrusts by the male with him ejaculating on the final thrust.<ref name="theprimata.com"/>

This species moves through the forest by swinging between horizontal branches
and uses all four limbs to grab branches. They may also leap from tree to tree.

This species communicates through voice, sight, smell, and touch. Vocally, this monkey has different sounds for different situations. To startle a potential predator the night monkey will “scream,” emitting a high pitched shriek. These monkeys use social sniffing to assess
potential breeding partners. They will also urinate on their hands and then rub it on different
surfaces to show sexual attraction. Aggressive males will usually arch their backs
with all of their limbs straightened. When in the presence of a predator the night monkey
will sway from side to side to try and deter the predator. A rejection bite is used as
tactile communication between mother and offspring after suckling or after around one
week old when contact is not welcome. Father and offspring also use a rejection bite when the offspring
reaches around 8 weeks when contact is not welcome.<ref>Cawthon Lang KA. 2005 July 18. [http://pin.primate.wisc.edu/factsheets/entry/owl_monkey Primate Factsheets: Owl monkey (Aotus) Taxonomy, Morphology, & Ecology]</ref>


==References==
==References==
{{Wikispecies|Aotus vociferans|Spix's Night Monkey}}
{{Wikispecies|Aotus vociferans|Spix's Night Monkey}}
{{reflist}}
{{Reflist}}


{{Aotidae nav}}
{{Aotidae nav}}
{{Taxonbar|from=Q508509}}


[[Category:Night monkeys|Spix's night monkey]]
[[Category:Mammals of Colombia]]
[[Category:Mammals of Colombia]]
[[Category:Mammals of Brazil]]
[[Category:Primates of Brazil]]
[[Category:Night monkeys]]
[[Category:Mammals of Ecuador]]
[[Category:Animals described in 1823]]
[[Category:Mammals of Peru]]
[[Category:Mammals described in 1823|Spix's night monkey]]

[[Category:Taxa named by Johann Baptist von Spix]]
{{newworld-monkey-stub}}

Latest revision as of 01:49, 18 September 2024

Spix's night monkey[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Suborder: Haplorhini
Infraorder: Simiiformes
Family: Aotidae
Genus: Aotus
Species:
A. vociferans
Binomial name
Aotus vociferans
(Spix, 1823)
Spix's Night Monkey range

Spix's night monkey (Aotus vociferans), also known as the Colombian gray night monkey, noisy night monkey and Spix's owl monkey, is a night monkey species from South America. It is found in Brazil, Colombia, Ecuador and Peru.

The Spix's night monkey is a small bodied monkey species usually having a mass of around one kilogram. It belongs to the only nocturnal genus of New World primates Aotus. This type of monkey can leap farther than most due to it having longer arms than legs. The monkey averages 0.5 meters in height. The night monkey is considered to be a new world monkey.[3]

The social behavior of the Aotus vociferans is group based. These groups usually consist of breeding pairs and their offspring. This species has a monogamous mating system. After the offspring are born, the father becomes the main caretaker, only giving up the offspring for them to suckle. The offspring will usually stay with their birth group until they reach two and a half to three and a half years old. An exception to this if the male breeding partner is no longer present for any reason (usually only caused by death), then the offspring may stay with its birth group for only twelve weeks to the normal departure age. Social grooming in this species of monkey is uncommon.[4]

The Aotus vociferans reproduce usually by giving birth to one offspring. Although, like with humans, there are cases of twins. The female breeding partner carries the offspring in interbirth for around one year. Both mating and birthing occur between November and January. For this species, copulation attempts tend to be short and quick, starting with the male and female approaching one another. Then the male performs a social sniff. During the original sniff, the female may reciprocate but not always. Sexual intercourse usually consists of only three to four thrusts by the male with him ejaculating on the final thrust.[4]

This species moves through the forest by swinging between horizontal branches and uses all four limbs to grab branches. They may also leap from tree to tree.

This species communicates through voice, sight, smell, and touch. Vocally, this monkey has different sounds for different situations. To startle a potential predator the night monkey will “scream,” emitting a high pitched shriek. These monkeys use social sniffing to assess potential breeding partners. They will also urinate on their hands and then rub it on different surfaces to show sexual attraction. Aggressive males will usually arch their backs with all of their limbs straightened. When in the presence of a predator the night monkey will sway from side to side to try and deter the predator. A rejection bite is used as tactile communication between mother and offspring after suckling or after around one week old when contact is not welcome. Father and offspring also use a rejection bite when the offspring reaches around 8 weeks when contact is not welcome.[5]

References

[edit]
Wikispecies has information related to Spix's Night Monkey.
  1. ^ Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore: Johns Hopkins University Press. p. 141. ISBN 0-801-88221-4. OCLC 62265494.
  2. ^ Guzmán-Caro, D.C.; Lynch Alfaro, J.W.; Stevenson, P.R.; de la Torre, S.; Cornejo, F.M.; Maldonado, A.; Moscoso, P. (2021). "Aotus vociferans". IUCN Red List of Threatened Species. 2021: e.T41544A191682904. doi:10.2305/IUCN.UK.2021-1.RLTS.T41544A191682904.en. Retrieved 20 November 2021.
  3. ^ "Aotus: The Owl Monkey's Natural History." KCCMR . Web. 8 Dec. 2015.
  4. ^ a b "Spix's Owl Monkey (Aotus Vociferans)[usurped]." Spix's Owl Monkey (Aotus Vociferans) . 25 Apr. 2007. Web. 8 Dec. 2015.
  5. ^ Cawthon Lang KA. 2005 July 18. Primate Factsheets: Owl monkey (Aotus) Taxonomy, Morphology, & Ecology
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