Callicebus hoffmannsi

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	MAMMALIA	PRIMATES	PITHECIIDAE

Scientific Name:

Callicebus hoffmannsi

Species Authority:

Thomas, 1908

Common Name/s:

English

–

Hoffmann’s Titi Monkey, Hoffman's Titi Monkey

Taxonomic Notes:

Kobayashi and Langguth (1999) and van Roosmalen et al. (2002) recognize five species groups – cupreus, donacophilus, moloch, personatus and torquatus. According to van Roosmalen et al. (2002), the moloch group comprises the species Callicebus baptista, Callicebus bernhardi, Callicebus brunneus, Callicebus cinerascens, Callicebus hoffmannsi and Callicebus moloch.

Assessment Information [top]

Red List Category & Criteria:

Least Concern ver 3.1

Year Assessed:

2008

Assessor/s

Veiga, L.M.

Evaluator/s:

Mittermeier, R.A. & Rylands, A.B. (Primate Red List Authority)

Justification:
This species is listed as Least Concern due to its relatively large range in a pristine region of the Amazon, and because there are no known major threats believed to be resulting in a decline sufficient to qualify it for listing in a threatened category.

History:

2003	–	Least Concern (IUCN 2003)
1996	–	Lower Risk/least concern

Geographic Range [top]

Range Description:	Occurs in Central Amazonia in Brazil, south of the Rio Amazonas in the States of Amazonas and Pará. Ranges from the right bank of the Rio Abacaxís [where it is parapatric with C. cinerascens] (Noronha et al. in press), to the left bank of the rio Tapajós (where parapatric with C. moloch), south to the north bank of Rio Palmares (Noronha et al. in press), north along the south bank of the Paraná do Urariá and Paraná do Ramos, east along the left bank of the Rio Andirá and the right bank of the Rio Uíra-Curapá south of the town of Parintins (van Roosmalen et al. 2002). The exact range of this genus in the interfluve between the Madeira and Tapajós rivers remains unknown (Silva Jr. and Noronha 2000). In a recent study (Noronha et al. in press), a grey titi monkey with light spots on its throat (possibly C. hoffmannsi) was recorded on the left bank of the Rio Tapajós (06 34'S, 58 28'W) near the Rio Palmares, in Maués Municipality, Amazonas State. The ranges of Callicebus bernhardi, Callicebus cinerascens and Callicebus hoffmannsi may possibly intergrade in some way in the area of the headwaters of the Rios Juruena, Aripuanã and Roosevelt.
Countries:	Native: Brazil
Range Map:	(click map to view full version)

Population [top]

Population:	There is no information on the population status of this species.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	No data on the ecology of this species are available. Titi monkeys (Callicebus spp.) are known to occur in a wide range of habitats, although some species exhibit habitat preferences, for example C. lucifer is reported to prefer white-sand forests (E. Heymann pers. comm. 2008), and C. donacophilus drier forests (Ferrari et al. 2000; R. Wallace pers. comm.). Members of the C. moloch and C. cupreus groups are considered tolerant of habitat disturbance caused by human activity or seasonal flooding (van Roosmalen et al. 2002). The diet of titis comprises mainly fruit pulp, leaves, insects and seeds. They form small, pair-bonded, territorial groups and are considered monogamous. They have small home (1.5-30 km) and day ranges (0.5-1.5 km).
Systems:	Terrestrial

Habitat and Ecology:

No data on the ecology of this species are available. Titi monkeys (Callicebus spp.) are known to occur in a wide range of habitats, although some species exhibit habitat preferences, for example C. lucifer is reported to prefer white-sand forests (E. Heymann pers. comm. 2008), and C. donacophilus drier forests (Ferrari et al. 2000; R. Wallace pers. comm.). Members of the C. moloch and C. cupreus groups are considered tolerant of habitat disturbance caused by human activity or seasonal flooding (van Roosmalen et al. 2002).

The diet of titis comprises mainly fruit pulp, leaves, insects and seeds. They form small, pair-bonded, territorial groups and are considered monogamous. They have small home (1.5-30 km) and day ranges (0.5-1.5 km).

Systems:

Terrestrial

Threats [top]

Major Threat(s):	This species occurs in a remote region relatively isolated from anthropogenic impact.

Major Threat(s):

This species occurs in a remote region relatively isolated from anthropogenic impact.

Conservation Actions [top]

Conservation Actions:	This species occurs in Parque Nacional da Amazônia, Floresta Nacional Itaituba, and Andira Marau Amerindian Reserve.

Conservation Actions:

This species occurs in Parque Nacional da Amazônia, Floresta Nacional Itaituba, and Andira Marau Amerindian Reserve.

Citation:	Veiga, L.M. 2008. Callicebus hoffmannsi. In: IUCN 2009. IUCN Red List of Threatened Species. Version 2009.2. <www.iucnredlist.org>. Downloaded on 21 November 2009.
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