Biology:Milton's titi monkey

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Short description: Species of New World monkey

Milton’s titi
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Suborder: Haplorhini
Infraorder: Simiiformes
Family: Pitheciidae
Genus: Plecturocebus
Species:
P. miltoni
Binomial name
Plecturocebus miltoni
Dalponte, Silva, Silva Júnior, 2014[2]
Synonyms

Callicebus miltoni

Milton's titi monkey (Plecturocebus miltoni) is a species of titi monkey, a type of New World monkey, from southern Amazon rainforest, Brazil . It was named after the Brazilian primatologist Milton Thiago de Mello. Milton's titi was discovered in 2011 by Julio César Dalponte, and recognized as a new species in 2014.[3]

Appearance

Milton's titi has a light gray band on its forehead, dark ochre sideburns and throat, a dark grey torso and flanks, a uniformly orange tail, and a light ochre abdomen.[4]

Distribution and natural history

Plecturocebus miltoni was discovered in the state of Mato Grosso and the state of Amazonas, Brazil.[4] The geographic distribution is centered around the Aripuanã River, Roosevelt River and Guariba River. The holotype of the species was retrieved along the right bank of the Roosevelt River, at the Guariba-Roosevelt Extractive Reserve (08°59'45.21"S 60°43'42.72" W).[4] The habitat distribution is considered to be the interfluvial region between the Roosevelt and Aripuanã rivers. The southern limit of P. miltoni's distribution is marked by steep hills forming a terrestrial barrier.[4] P. miltoni was not found along the left side of the Roosevelt river, and was instead replaced by Prince Bernhard's titi.[4] Amazonian distributions of titi monkeys are limited by rivers, given that they cannot swim and forest habitat specificity.[5] The Milton Titi therefore has a range limited to the area between the two rivers and southern hills and is endemic to that area.[4]

P. miltoni was discovered in a mixed ombrophilous alluvial forest, describing a forest biome that is commonly referred to as a rainforest,[6] and where often anthropogenic activities have caused a disruption in succession and increase in pioneer species.[4] The biome is defined as high in precipitation with a strong presence of Araucaria pines.[7] The climate is hot and humid in summers and cool in winters.[6] Milton Titis are found in the high (canopy) and medium (undercanopy) strata of the ombrophilous forest.[4] The forest canopy has a maximum height of 30m.[4] Its habitat biome is also known to be more precisely referred to as terra firme (tropical moist), or Amazonian lowland forests.[8] These are gentle hills that are elevated above flood level. The area is of significant biogeographic importance as it is a potential hotspot for endemism.[8]

The geographic distribution of P. miltoni is approximated to be 4,921.540 ha by the researchers who discovered the species.[4] A significant portion is this distribution is located within indigenous territory represented by the Terra Indigena Arara do Rio Branco[4]

Behavioral ecology and nutrition

It is common for titi monkeys to express territoriality and communication as a meta-population through vocalization.[4] P. miltoni was observed to behave in the same way as other titi monkeys. Loud voice calls are more common in the morning and less frequent during the dry season. Like other titi monkeys, P. miltoni has vocal seasonality.[4] Group communication was found to be related in some cases to fruit availability (which is during the rainy season) and territoriality.[4]

Groups have been observed of up to five individuals.[4] Groups are limited to a monogamous pair and their offspring,[4] like other titi monkeys.[5] When sleeping, family members often have their tails touching.[4]

P. miltoni has been found to be diurnal, with intermittent naps in the daytime.[4] Titis can easily jumps between trees and branches, as defined by their German name, Springaffen.[9]

Their nutrition has been found to be mainly frugivorous,[4] as with other species of titi monkeys.[10] Their favorites seem to be Inga, cacao, and cecropia.[4]

Taxonomy and phylogeny

Milton titis are referred to as "fire-taired zogue zogue" locally.[4] The designated holotype was first retrieved by a local hunter before being transferred to Dalponte.[4]

Milton titis belong to the species group Plecturocebus Moloch. It was previously recognized as Callicebus miltoni, as it was named at its discovery.[4] The titi monkey sub-family Callicebinae is the most species rich of primate taxons,[11] and yet was previously considered as monogeneric under the genus Callicebus.[11][12] Given the incredible diversity, three new genera were proposed in 2002: Callicebus (for eastern Brazilian titis), Cheracebus ("collared" titis) and Plecturocebus (titis of the Amazon and Chaco).[11][12] The species-level diversification occurred during the Pleistocene as the Plecturocebus moloch group travelled across the Amazon.[13] This was because of rivers that created reproductive barriers that caused a form of allopatric speciation, and could be a contribution into the great diversity of the sub-family Callicebinae (the titi monkey family).[13]

Conservation

The IUCN does not have enough data to evaluate risk for P. miltoni.[1] The last assessment was in 2021.[1] The researchers who discovered the species have mentioned that deforestation is the greatest threat to the species.[4] The total area of deforested land in P. miltoni's habitat was 2.32 million hectares when the species was described, 4.7% of the total range of the species.[4] Hunting does not appear to present a risk to the species.[4]

Approximately 25% (1,246,382 ha) of the natural range of P. miltoni is located in protected areas.[4] The species occurs, or may occur, in the following protected areas:[1][4]

  • Guariba-Roosevelt Extractivist Reserve
  • Aripuanã Forest State Park
  • Manicoré Forest State Park
  • Aripuanã Reserva de Desenvolmento Sustentável
  • Campos Amazonicos National Park
  • Rio Flor do Prado Ecological Station

References

  1. ↑ 1.0 1.1 1.2 1.3 Boubli, J.P.; Silva, F.E. (2021). "Plecturocebus miltoni". IUCN Red List of Threatened Species 2021: e.T127530569A206549250. doi:10.2305/IUCN.UK.2021-3.RLTS.T127530569A206549250.en. https://www.iucnredlist.org/species/127530569/206549250. Retrieved 3 September 2022. 
  2. ↑ Dalponte, Julio César; Silva, Felipe Ennes; Silva Júnior, José de Sousa e (2014). "New species of titi monkey, genus Callicebus Thomas, 1903 (Primates, Pitheciidae), from Southern Amazonia, Brazil". Papéis Avulsos de Zoologia 54. doi:10.1590/0031-1049.2014.54.32. 
  3. ↑ Rakowski, Sarah (4 March 2015). "New monkey species discovered in the Amazon Rainforest". http://www.fauna-flora.org/news/new-monkey-species-discovered-in-the-amazon-rainforest/?v=1. 
  4. ↑ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18 4.19 4.20 4.21 4.22 4.23 4.24 4.25 4.26 4.27 Dalponte, Julio César; Silva, Felipe Ennes; Silva Júnior, José de Sousa e (2014). "New species of titi monkey, genus Callicebus Thomas, 1903 (Primates, Pitheciidae), from Southern Amazonia, Brazil". Papéis Avulsos de Zoologia. doi:10.1590/0031-1049.2014.54.32. ISSN 0031-1049. 
  5. ↑ 5.0 5.1 van., Roosmalen, Marc G. M. (2002). A taxonomic review of the titi monkeys, genus Callicebus Thomas, 1903, with the description of two new species, Callicebus bernhardi and Callicebus Stephennashi, from Brazilian Amazonia. Conservation International. OCLC 50555838. http://worldcat.org/oclc/50555838. 
  6. ↑ 6.0 6.1 "Floresta Ombrófila Mista na região de São Luiz do Purunã" (in pt-BR). 2020-05-06. https://institutopuruna.com.br/mixed-ombrophilous-forest-in-sao-luiz-do-puruna/. 
  7. ↑ Ruggiero, Alyne Regina; Schorn, Lauri Amândio; Santos, Kristiana Fiorentin dos; Fenilli, Tatiele Anete Bergamo (2021-05-17). "Dynamics of natural regeneration after disturbance in a remnant of Mixed Ombrophilous Forest in southern Brazil". Ambiente e Agua 16 (3): 1. doi:10.4136/ambi-agua.2679. ISSN 1980-993X. 
  8. ↑ 8.0 8.1 Soares, J. C. R.; Amaral, A. O.; Moura, R. S.; Ribeiro, R. P.; Junior, L. K. (2017). "EFEITO DO MANEJO FLORESTAL SOBRE A AVIFAUNA EM UMA FLORESTA DE TERRA FIRME NA AMAZÔNIA CENTRAL". Revista Univap 22 (40): 881. doi:10.18066/revistaunivap.v22i40.943. 
  9. ↑ Krieg, Hans (1930). "Biologische reisestudien in Südamerika. XVI. Die affen des gran chaco und seiner grenzgebiete". Zeitschrift für Morphologie und Ökologie der Tiere 18 (4): 760–785. doi:10.1007/bf00418159. ISSN 0720-213X. http://dx.doi.org/10.1007/bf00418159. 
  10. ↑ dos Santos, Glênio Pereira; Galvão, Cristiane; Young, Robert J. (July 2012). "The diet of wild black-fronted titi monkeys Callicebus nigrifrons during a bamboo masting year". Primates; Journal of Primatology 53 (3): 265–272. doi:10.1007/s10329-012-0295-5. ISSN 1610-7365. PMID 22311072. https://pubmed.ncbi.nlm.nih.gov/22311072/. 
  11. ↑ 11.0 11.1 11.2 Byrne, Hazel; Rylands, Anthony B.; Carneiro, Jeferson C.; Alfaro, Jessica W. Lynch; Bertuol, Fabricio; da Silva, Maria N. F.; Messias, Mariluce; Groves, Colin P. et al. (2016-03-01). "Phylogenetic relationships of the New World titi monkeys (Callicebus): first appraisal of taxonomy based on molecular evidence". Frontiers in Zoology 13 (1): 10. doi:10.1186/s12983-016-0142-4. ISSN 1742-9994. PMID 26937245. 
  12. ↑ 12.0 12.1 Oliveira, Marlene de (2009), "Grupos de pesquisa em Ciência da Informação no Brasil", A ciência da informação criadora do conhecimento Vol. II (Imprensa da Universidade de Coimbra): pp. 119–133, doi:10.14195/978-989-26-0869-3_9, ISBN 9789892608693, http://dx.doi.org/10.14195/978-989-26-0869-3_9, retrieved 2022-04-26 
  13. ↑ 13.0 13.1 Byrne, Hazel; Lynch Alfaro, Jessica W.; Sampaio, Iracilda; Farias, Izeni; Schneider, Horacio; Hrbek, Tomas; Boubli, Jean P. (September 2018). "Titi monkey biogeography: Parallel Pleistocene spread by Plecturocebus and Cheracebus into a post-Pebas Western Amazon" (in en). Zoologica Scripta 47 (5): 499–517. doi:10.1111/zsc.12300. http://doi.wiley.com/10.1111/zsc.12300. 

Wikidata ☰ Q19279592 entry



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