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Green-capped Tanager Tangara meyerdeschauenseei

Justification
This species has been downlisted from Vulnerable as a result of evidence that it occurs more widely and thus may have a larger population than previously thought. Recent evidence also suggests that the population is increasing in response to anthropogenic habitat modification. It qualifies as Near Threatened because its population is nevertheless thought to be very small. Further evidence regarding its population size and distribution may warrant downlisting of the species to Least Concern in the near future.

Taxonomic source(s)
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.html#.

Identification
14 cm. Predominately pale turquoise-green tanager. Greenish-straw crown (more straw in female, but sexes otherwise largely alike). Rest of upperparts blue-green admixed with straw, especially on rump. Blue underparts tinged buff, most noticeable on undertail-coverts. Voice A fairly harsh short cheeup cheeup cheeup

Distribution and population
Tangara meyerdeschauenseei was described from Puno department in southern Peru by Schulenberg and Binford (1985). It is now known to be relatively common at three sites in the arid area at the headwaters of the río Inambari in Puno, and apparently uncommon in the Apolo area of north-western Bolivia (M. Berg and A. Van Kleunen in litt. 2012). Until recently, there were only three reports of this species from Bolivia, all from Madidi National Park, with one in November 2001 from humid Yungas forest at Tokoaque (Hennessey and Gomez 2003), another published sighting from dry forest along the Río Machariapo (Parker and Bailey 1991), which was later retracted (Hennessey and Gomez 2003), and one seen near Santa Cruz de Valle Ameno in December 2003 (B. Hennessey per M. Berg and A. Van Kluenen in litt. 2012). However, fieldwork in the Apolo area of La Paz department, Bolivia, in April and May 2011, produced seven records of 15 individuals (M. Berg and A. Van Kleunen in litt. 2012). Six of these observations occurred in the Atén area, with another in the humid Yungas forest close to Santa Cruz de Valle Ameno. The Atén area produced subsequent records later in 2011 (A. Van Kluenen and J. Q. Vidoz per M. Berg and A. Van Kluenen in litt. 2012). It has been suggested that this species is undergoing range expansion, facilitated by deforestation (Schulenberg et al. 2007, M. Berg and A. Van Kluenen in litt. 2012).


Population justification
The species is described as fairly common to locally common in its apparently restricted range. Its population was previously estimated at 600-1,700 mature individuals; however, it has since been found at additional locations, suggesting that the population estimate should be revised upwards. The population is now placed in the band for 1,000-2,499 mature individuals, roughly equivalent to 1,500-3,800 individuals in total.

Trend justification
This species appears to be increasing locally owing to land clearance and agricultural practices (D. Lane in litt. 2013), which are increasing the availability of open scrub and wooded grassland that the species appears to favour (M. Berg and Van Kleunen in litt. 2012, S. Herzog in litt. 2013).

Ecology
The species appears to prefer open scrub and wooded grassland, and has been observed at forest edges. The majority of recent observations in Bolivia are from dry, open scrubland and forest borders at 1450-1700 m, typical of Bolivian Andean Cerrado (M. Berg and Van Kleunen in litt. 2012). Some records from Bolivia are from humid Yungas forest (Hennessey and Gomez 2003, M. Berg and A. Van Kluenen in litt. 2012), and seasonal movements between habitats have been postulated (Hennessey and Gomez 2003). In general, records are from between 1,450 and 2,200 m, but it may range beyond these limits. It is usually found singly, in pairs or groups of three or four (Naoki 2003, M. Berg and Van Kleunen in litt. 2012), often in mixed species flocks, foraging in bushes and low trees (M. Berg and Van Kleunen in litt. 2012). It has been recorded taking a variety of fruit and arthropods (Naoki 2003), and probably breeds around November based on the behaviour of the birds sighted (Hennessey and Gomez 2003).


Threats
Its usage of open, semi-open and edge habitats suggests that it is tolerant of habitat modification. Indeed, it is suspected that deforestation is facilitating the expansion of its range (Schulenberg et al. 2007, M. Berg and A. Van Kluenen in litt. 2012). It remains to be seen whether agricultural intensification will negatively impact the species.


Conservation Actions Underway
Many records from Bolivia are from within Madidi National Park (Hennessey and Gomez 2003, M. Berg and A. Van Kluenen in litt. 2012), thus it receives some habitat protection. Conservation Actions Proposed
Assess its range and population size. Research its ecology and habitat requirements. Conduct research to clarify pertinent threats. Grant protected status to additional occupied sites and areas of suitable habitat. Work with farmers to develop a land management strategy that benefits the species in the long term.


References
Berg, M.; Van Kleunen, M. 2012. Green-capped Tanager Tangara meyerdeschaunseei Bolivian Range extension . Asociacíon Armonía, La Paz, Bolivia.

Collar, N. J.; Gonzaga, L. P.; Krabbe, N.; Madroño Nieto, A.; Naranjo, L. G.; Parker, T. A.; Wege, D. C. 1992. Threatened birds of the Americas: the ICBP/IUCN Red Data Book. International Council for Bird Preservation, Cambridge, U.K.

del Hoyo, J.; Elliot, A.; Christie, D. 2011. Handbook of the birds of the world vol. 16: Tanagers to New World Blackbirds. Lynx Edicions, Barcelona.

Hennessey, aB.; Gomez, M. I. 2003. Four bird species new to Bolivia: an ornithological survey of the Yungas site Tokoaque, Madidi National Park. Cotinga 19: 25-33.

Naoki, K. 2003. Notes on foraging ecology of the little-known Green-caped Tanager (Tangara meyerdeschauenseei). Ornitologia Neotropical 14: 411-414.

Parker, T. A.; Bailey, B. 1991. A biological assessment of the Alto Madidi region and adjacent areas of northwest Bolivia, May 18 - June 15, 1990. Conservation International, Washington, D.C.

Remsen, J. V.; Parker, T. A. 1995. Bolivia has the opportunity to create the planet's richest park for terrestrial biota. Bird Conservation International 5: 181-200.

Schulenberg, T. S.; Stotz, D. F. ; Lane, D. F.; O"Neill, J. P.; Parker III, T. A. 2007. Birds of Peru. Prnceton University Press, Prnceton, NJ, USA.

Further web sources of information
Detailed species account from the Threatened birds of the Americas: the BirdLife International Red Data Book (BirdLife International 1992). Please note taxonomic treatment and IUCN Red List category may have changed since publication.

Detailed species account from the Threatened birds of the Americas: the BirdLife International Red Data Book (BirdLife International 1992). Please note, taxonomic treatment and IUCN Red List category may have changed since publication.

Explore HBW Alive for further information on this species

Recuento detallado de la especie tomado del libro Aves Amenazadas de las Americas, Libro Rojo de BirdLife International (BirdLife International 1992). Nota: la taxonomoía y la categoría de la Lista Roja de la UICN pudo haber cambiado desde esta publicación.

Search for photos and videos, and hear sounds of this species from the Internet Bird Collection

Text account compilers
Isherwood, I., Pople, R., Sharpe, C J, Stuart, T., Symes, A. & Taylor, J.

Contributors
Naoki, K., van Kleunen, A. & Berg, M.

Recommended citation
BirdLife International (2014) Species factsheet: Tangara meyerdeschauenseei. Downloaded from http://www.birdlife.org on 21/08/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 21/08/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Additional resources for this species

ARKive species - Green-capped tanager (Tangara meyerdeschauenseei) 0

Key facts
Current IUCN Red List category Near Threatened
Family Thraupidae (Tanagers)
Species name author Schulenberg & Binford, 1985
Population size 1000-2499 mature individuals
Population trend Increasing
Distribution size (breeding/resident) 380 km2
Country endemic? No
Links to further information
- Additional Information on this species