Callicebus barbarabrownae, Blond Titi Monkey

Transcription

1 The IUCN Red List of Threatened Species ISSN (online) IUCN 2008: T39929A Callicebus barbarabrownae, Blond Titi Monkey Assessment by: Veiga, L.M., Printes, R.C., Rylands, A.B., Kierulff, C.M., de Oliveira, M.M. & Mendes, S.L. View on Citation: Veiga, L.M., Printes, R.C., Rylands, A.B., Kierulff, C.M., de Oliveira, M.M. & Mendes, S.L Callicebus barbarabrownae. The IUCN Red List of Threatened Species 2008: e.t39929a Copyright: 2015 International Union for Conservation of Nature and Natural Resources Reproduction of this publication for educational or other non-commercial purposes is authorized without prior written permission from the copyright holder provided the source is fully acknowledged. Reproduction of this publication for resale, reposting or other commercial purposes is prohibited without prior written permission from the copyright holder. For further details see Terms of Use. The IUCN Red List of Threatened Species is produced and managed by the IUCN Global Species Programme, the IUCN Species Survival Commission (SSC) and The IUCN Red List Partnership. The IUCN Red List Partners are: BirdLife International; Botanic Gardens Conservation International; Conservation International; Microsoft; NatureServe; Royal Botanic Gardens, Kew; Sapienza University of Rome; Texas A&M University; Wildscreen; and Zoological Society of London. If you see any errors or have any questions or suggestions on what is shown in this document, please provide us with feedback so that we can correct or extend the information provided. THE IUCN RED LIST OF THREATENED SPECIES

2 Taxonomy Kingdom Phylum Class Order Family Animalia Chordata Mammalia Primates Pitheciidae Taxon Name: Callicebus barbarabrownae Hershkovitz, 1990 Synonym(s): Callicebus personatus subspecies barbarabrownae Hershkovitz, 1990 Common Name(s): English: Spanish: Taxonomic Notes: Blond Titi Monkey, Barbara Brown's Titi, Northern Bahian Blond Titi, Northern Bahian Blond Titi Monkey Guigó, Sauá Described by Hershkovitz (1988; 1990) as a subspecies of Callicebus personatus. Kobayashi and Langguth (1999) argued that the titis of the Atlantic forest should be considered species rather than subspecies of C. personatus. They listed C. nigrifrons, C. personatus, C. melanochir and C. coimbrai besides C. barbarabrownae. According to Printes (2007), the name Callicebus barbarabrownae Hershkovitz, 1990 may prove to be a junior synonym of Callicebus gigot (Spix, 1823), according to the principle of priority. Assessment Information Red List Category & Criteria: Critically Endangered C2a(i) ver 3.1 Year Published: 2008 Date Assessed: June 30, 2008 Justification: This species is listed as Critically Endangered due to its small population size (estimated to be less than 250 mature individuals in the wild), which is severely fragmented in small subpopulations (none exceeding 50 mature individuals), and which is continuing to decline extensive ongoing deforestation. The species is not known to occur in any protected areas. Previously Published Red List Assessments 2003 Critically Endangered (CR) 2000 Critically Endangered (CR) 1996 Critically Endangered (CR) 1996 Critically Endangered (CR) 1994 Endangered (E) 1

3 Geographic Range Range Description: Endemic to Brazil, the Blond Titi Monkey occurs in the states of Bahia (Hershkovitz 1990) and Sergipe at approximately m asl (Printes 2007) from the Rio Paraguaçu river basin to the border between the states of Bahia and Sergipe along the margins of the Rio Real. Prior to the survey of Printes (2005, 2007), this species was known from only four localities: Lamarão (type locality), Formosa, Bandeira de Melo and Mirorós in the municipality of Ibipeba all in the State of Bahia (Hershkovitz 1990; Marinho- Filho and Veríssimo 1997). However, the taxon has now been confirmed at over 55 sites in Bahia and Sergipe (Printes 2007; Estrela et al. 2007). In recent surveys (195 km) undertaken in Lamarão in Bahia, the species was registered in four locations, all caatinga scrubland fragments (Estrela et al. 2007), some considerably smaller than previously estimated (A. Estrela pers. comm.). In the past, the coastal forests of the Agreste in eastern Bahia probably supported large populations; however, this type of vegetation is rare today (Printes et al. in prep.). Populations have been located in three main regions: Agreste, Lamarão and north of the Chapada Diamantina. No titis were recorded in the region west of Araci and Nova Soure, which is dominated by the Cerrado. However, C. barbarabrownae was recorded in the Caatinga of the moister uplands northeast of Araci (Mandacaru, Mirandela and Serra Branca). The species was also recorded in Caatinga habitat further north as far as the Salitre river, 170 km from Juazeiro, but titis were not recorded west of the Chapada Diamantina (Printes 2007; Printes et al. in prep.) Callicebus melanochir replaces C. barbarabrownae in the region known as the Recôncavo Baiano (south of the Paraguaçu river in the municipality of Igrapiuna). The lower Paraguaçu forms the limit between the geographic ranges of C. coimbrai, restricted to the left or north bank, and C. melanochir, found on the right bank. Further west, in the region of Feira de Santana, C. barbarabrownae occurs on both banks of the Paraguaçu. There appears to be no physical barrier between the eastern limit of the range of C. barbarabrownae and the western limit of C. coimbrai (Printes et al. in prep.). The extent of occurrence of the Blond Titi Monkey is estimated to cover an area of some 291,438 km², but its area of occupancy is only thought to be 2,636 km² (Printes 2007; Printes et al. in prep.). Approximately 90% of all records are between 37º and 41ºW and 09º and 13ºS (Printes 2007). Country Occurrence: Native: Brazil 2

4 Distribution Map 3

5 Population The estimated minimum population is 260 individuals (Printes 2007). Current Population Trend: Decreasing Habitat and Ecology (see Appendix for additional information) Occurs in caatinga (dry scrubland) with a preferences for dense arboreal caatinga (Printes 2007). There are no available data on ecology. Systems: Terrestrial Threats (see Appendix for additional information) Occurs in a region of Brazil with widespread deforestation and habitat fragmentation. Cattle ranching, agriculture and continuing urbanisation are the main threats. The area is characterized by rapid development facilitated by an extensive network of highways. Other threats include potential dangers from roads and power-lines and predation by domestic pets. This species occurs in small fragmented populations that are exposed to synergistic genetic and demographic risks. Hunting pressure needs to be ascertained, but it is probably moderate due to the small body size. During surveys, a few individuals were found being kept as pets (Printes et al. in prep). Conservation Actions (see Appendix for additional information) The species is not found in any officially protected area. It is listed on CITES Appendix II. Credits Assessor(s): Reviewer(s): Veiga, L.M., Printes, R.C., Rylands, A.B., Kierulff, C.M., de Oliveira, M.M. & Mendes, S.L. Mittermeier, R.A. & Rylands, A.B. (Primate Red List Authority) 4

6 Bibliography Coimbra-Filho, A. F. and Câmara, I. de G Os Limites Originais do Bioma Mata Atlântica na Região Nordeste do Brasil. Fundação Brasileira para a Conservação da Natureza, Rio de Janeiro, Brazil. Eisenberg, J.F. and Redford, K.H Mammals of the Neotropics: The Central Neotropics. The University of Chicago Press, Chicago, USA. Estrela, A. R., Nogueira, E. M. S. and Porfírio, S Callicebus barbarabrownae (Hershkovitz, 1990) (Primates: Pitheciidae) de Lamarão/BA: Resultados Preliminares. XII Congresso Brasileiro de Primatologia, 2007, Belo Horizonte. XII Congresso Brasileiro de Primatologia. Groves, C. P Primate taxonomy. Smithsonian Institution Press, Washington, DC, USA. Hershkovitz, P Origin, speciation, and distribution of South American titi monkeys, genus Callicebus (Family Cebidae, Platyrrhini). Proceedings of the Academy of Natural Sciences of Philadelphia 140(1): Hershkovitz, P Titis, New World monkeys of the genus Callicebus (Cebidae, Platyrrhini): a preliminary taxonomic review. Fieldiana: Zoology 55: Kobayashi, S A phylogenetic study of titi monkeys, genus Callicebus, based on cranial measurements: I. Phyletic groups of Callicebus. Primates 36(1): Kobayashi, S and Langguth, A A new species of titi monkeys, Callicebus Thomas, from northeastern Brazil (Primates, Cebidae). Revista Brasileira de Zoologia 16(2): Marinho Filho, J. and Veríssimo, E. W The rediscovery of Callicebus personatus barbarabrownae in northeastern Brazil with a new western limit to its distribution. Primates 38(4): Printes, R. C Novos registros sobre a distribuição do guigó-da-caatinga Callicebus barbarabrownae (Hershkovitz, 1990) e novo limite sul de Callicebus coimbrai (Kobayashi & Langguth, 1999). XI Congresso Brasileiro de Primatologia, Resumos. Porto Alegre. Printes, R. C Avaliação taxonômica, distribuição e status do guigó-da-caatinga Callicebus barbarabrownae Hershkovitz, 1990 (Primates: Pitheciidae). Ph.D. Thesis, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais. Printes, R. C., Jerusalinsky, L., Cardoso de Sousa, M. and Rodrigues, L. R. R. In prep.. Zoogeography, Genetic Variation and Conservation of the Callicebus personatus Group. In: A. A. Barnett, L. M. Veiga, S. F. Ferrari and M. A. Norconk (eds), Evolutionary Biology and Conservation of Titis, Sakis and Uacaris, Cambridge University Press, Cambridge, UK. Van Roosmalen, M. G. M., Van Roosmalen, T. and Mittermeier, R.A 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. Neotropical Primates 10: Citation Veiga, L.M., Printes, R.C., Rylands, A.B., Kierulff, C.M., de Oliveira, M.M. & Mendes, S.L Callicebus barbarabrownae. The IUCN Red List of Threatened Species 2008: e.t39929a Disclaimer 5

7 To make use of this information, please check the Terms of Use. External Resources For Images and External Links to Additional Information, please see the Red List website. 6

8 Appendix Habitats ( Habitat Season Suitability Major Importance? 2. Savanna -> 2.1. Savanna - Dry - Suitable - 3. Shrubland -> 3.5. Shrubland - Subtropical/Tropical Dry - Suitable - Threats ( Threat Timing Scope Severity Impact Score 1. Residential & commercial development -> 1.1. Housing & urban areas 2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> Small-holder farming 2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> Agro-industry farming 2. Agriculture & aquaculture -> 2.3. Livestock farming & ranching -> Small-holder grazing, ranching or farming 2. Agriculture & aquaculture -> 2.3. Livestock farming & ranching -> Agro-industry grazing, ranching or farming 4. Transportation & service corridors -> 4.1. Roads & railroads 4. Transportation & service corridors -> 4.2. Utility & service lines 7

9 Conservation Actions in Place ( Conservation Actions in Place In-Place Education Included in international legislation: Yes Subject to any international management/trade controls: Yes Conservation Actions Needed ( Conservation Actions Needed 1. Land/water protection -> 1.1. Site/area protection 2. Land/water management -> 2.1. Site/area management Research Needed ( Research Needed 1. Research -> 1.2. Population size, distribution & trends 1. Research -> 1.3. Life history & ecology 3. Monitoring -> 3.1. Population trends Additional Data Fields Population Number of mature individuals: 260 Population severely fragmented: No 8

10 The IUCN Red List Partnership The IUCN Red List of Threatened Species is produced and managed by the IUCN Global Species Programme, the IUCN Species Survival Commission (SSC) and The IUCN Red List Partnership. The IUCN Red List Partners are: BirdLife International; Botanic Gardens Conservation International; Conservation International; Microsoft; NatureServe; Royal Botanic Gardens, Kew; Sapienza University of Rome; Texas A&M University; Wildscreen; and Zoological Society of London. THE IUCN RED LIST OF THREATENED SPECIES