Ecology

Habitat

Habitat and Ecology

Systems
  • Terrestrial
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Ramphocelus dimidiatus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 3
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2012

Assessor/s
BirdLife International

Reviewer/s
Butchart, S. & Symes, A.

Contributor/s

Justification
This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
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Population

Population
The global population size has not been quantified, but this species is described as 'common' (Stotz et al. (1996).

Population Trend
Stable
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Wikipedia

Crimson-backed tanager

The crimson-backed tanager (Ramphocelus dimidiatus) is a species of bird in the Thraupidae family. It is found in Colombia, French Guyana, Panama, (French Polynesia) and Venezuela.[2] Its natural habitats are subtropical or tropical moist lowland forests and heavily degraded former forest.[2] A nickname in Panama is sangre de toro ("Blood of the bull").[3]

The crimson-backed tanager was first described by French naturalist Frédéric de Lafresnaye in 1837. It is one of nine species of brightly coloured tanagers of the genus Ramphocelus. Mitochondrial DNA evidence indicates its closest relative is the masked crimson tanager (R. nigrogularis), and the two split around 800,000 years ago.[4]

Measuring around 18 cm (7.1 in) in length, the adult male has a silver sheen on its lower mandible.[5] Its whole head and chest are a maroon red, brightening to a bright red on its lower back and abdomen. Its wings and tail are black. The female is duller with blackish underparts.[6]

It is found in northern and western Colombia (south to Chocó where it is uncommon[6]), the Maracaibo Basin in Venezuela,[5] and over most of Panama, where it extends to Chiriquí and Veraguas Provinces in the west of the country, as well as Coiba, where it is abundant, and Pearl Islands.[3] It inhabits forest, scrub and gardens.[5]

A nest with a clutch of two blue eggs with fine dark dots has been recorded.[6]

A field study on blood parasites found that two individual crimson-backed tanagers (out of twelve tested) bore Plasmodium, with the study concluding the overall rate was low compared with studies done elsewhere.[7]

References[edit]

  1. ^ BirdLife International (2012). "Ramphocelus dimidiatus". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013. 
  2. ^ a b "BirdLife Species Factsheet (additional data): Crimson-backed Tanager". BirdLife International. Retrieved 25 July 2009. 
  3. ^ a b Ridgely, Robert S.; Gwynne, John A. (1992). A Guide to the Birds of Panama: With Costa Rica, Nicaragua, and Honduras. Princeton University Press. p. 403. ISBN 0-691-02512-6. 
  4. ^ Burns, Kevin J.; Racicot, Rachel A. (2009). "Molecular phylogenetics of a clade of lowland tanagers: implications for avian participation in the great American interchange". The Auk 126 (3): 635–648. doi:10.1525/auk.2009.08195. 
  5. ^ a b c Ridgely, Robert S.; Tudor, Guy (2009). Field Guide to the Songbirds of South America: The Passerines. University of Texas Press. p. 614. ISBN 0-292-71979-5. 
  6. ^ a b c Hilty, Steven L.; Brown, Bill (1986). A guide to the birds of Colombia. Princeton University Press. p. 624. ISBN 0-691-08372-X. Retrieved 1 June 2011. 
  7. ^ Londoño, Aurora; Pulgarin-R., Paulo C.; Blair, Silvia (2007). "Blood Parasites in Birds From the Lowlands of Northern Colombia" (PDF). Caribbean Journal of Science 43 (1): 87–93. 
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