Galapagos Species Checklist

Platyspiza crassirostris (Gould, 1837)

Pinzón vegetariano, Vegetarian finch

Male Vegetarian Finch, in Santa Cruz, Galapagos. Photo: CDF Archive.
Male Vegetarian Finch, in Santa Cruz, Galapagos. Photo: CDF Archive.

Threats The main threat is probably introduced diseases and when populations are important there, the management of the agricultural areas (pesticide use, remaining forests etc).

Taxonomy

Domain
Eukaryota

Kingdom
Animalia

Phylum
Chordata

Class
Aves

Order
Passeriformes

Family
Thraupidae

Genus
Platyspiza

Species
crassirostris

Taxon category: Accepted

Syn.: Camarhynchus crassirostris Gould, 1837; Camarhynchus variegatus (Sclater & Salvin, 1870).

Status

Least concern

Ecology

Habitat preferences: This species occurs on all the main islands that support highland vegetation, however it does not occur in the humid forest area but prefers the transition zone and lower agricultural zone.

Feeding type: Granivorous

Seeds, flowers, buds, and leaves

Feeding preferences: Mainly feeds in trees on soft seeds, buds, blossoms, fruits and leaves but also occasionally on the ground on herbaceous leaves and fallen fruits.

Trophic role: Herbivorous

Reproductive biology: Male displays in front of a dome shape nest. Once chosen, the pair either use this nest – or build a new one. Only females are incubating (two to three eggs), both feed the chicks. Fledglings stay for up to 6 weeks with a parent, either with the male while the female starts a new clutch, or, one with the female and the other with the male.

Distribution

Distribution map of specimen collection localities or observation records for this species in our collections database.

Distribution: All islands, except Santa Fe, Baltra, Seymour, Darwin, Wolf, Genovesa, Espanola.

References

  • Wiedenfeld, D.A. (2006) Aves, the Galapagos Islands, Ecuador. Check List 2006 2(2): 1-27.
  • Jiménez-Uzcátegui, G. Milstead, B., Márquez, C., Zabala, J., Buitrón, P., Llerena, A., et al. (2007) Galapagos vertebrates: endangered status and conservation actions. Galapagos Report 2006–2007. Charles Darwin Foundation, Puerto Ayora, p. 104–110.
  • Harris, M.P. (1973) The Galápagos avifauna. Condor 75(3): 265-278.
  • Salvin, O. (1876) On the avifauna of the Galápagos Archipelago. Transactions of the Zoological Society of London 9: 447-510.
  • Castro, I. Phillips, A. (1996) A Guide to the Birds of the Galapagos Islands. Christopher Helm Publishers Ltd., London.
  • Swarth, H.S. (1931) The Avifauna of the Galapagos Islands. Occ. Pap. Calif. Acad. Sci. 18: 1-299.
  • Kleindorfer, S. Dudaniec, R.Y. (2006) Increasing prevalence of avian poxvirus in Darwin’s finches and its effect on male pairing success. Journal of Avian Biology 37: 69-76.
  • Jiménez-Uzcátegui, G. Betancourt, F. (2008) Avifauna vs automotores. Informe Galápagos 2007-2008. FCD, PNG & INGALA. Puerto Ayora, Ecuador. p. 111–114.
  • Bisconti, M. Landini, W., Bianucci, G., Cantalamessa, G., Carnevale, G. Ragaini, L. & Valleri, G. (2001) Biogeographic relationships of the Galapagos terrestrial biota: parsimony analyses of endemicity based on reptiles, land birds and Scalesia land plants. J. Biogeogr. 28: 495-510.
  • Donohue, K. (2011) Darwin's Finches: Readings in the Evolution of a Scientific Paradigm University of Chicago Press, Chicago, 492 pp.
  • Grant, P.R. Grant, B.R. (1987) Interacciones entre plantas y animales: consumo de semillas por los Pinzones de Darwin. Memorias. Investigación Botánica y Manejo en Galápagos. Pg.199-209
  • Dvorak, M. Fessl, B., Nemeth, E., Kleindorfer, S.M., & Tebbich, S. (2012) Distribution and abundance of Darwin ́s Finches and other land birds on Santa Cruz Island Galapagos: evidence for declining populations. Oryx 46:78-86
  • Dvorak, M. Vargas, H., Fessl, B. & Tebbich, B. (2004) On the verge of extinction: a survey of the mangrove finch Cactospiza heliobates and its habitat on the Galápagos islands. Oryx 38:1-9.
  • Farrington, H. Petren, K. (2011) A century of genetic change and metapopulation dynamics in the Galápagos warbler finches (Certhidea). Evolution 65:3148-3161.
  • Petren, K. Grant, B. & Grant, P. (1999) A phylogeny of Darwin's finches based on microsatellite DNA length variation. Proceedings of the Royal Society of London Series B-Biological Sciences 266:321-329.
  • Sato, A. O'hUigin, C., Figueroa, F., Grant, P., Grant, B., Tichy, H. & Klein, J. (1999) Phylogeny of Darwin's finches as revealed by mtDNA sequences. Proceedings of the National Academy of Sciences of the United States of America 96:5101-5106.
  • Farrington, H. Lawson, L., Clark, C. & Petren, K. (2014) The evolutionary history of Darwin's finches: speciation, gene flow, and introgression in a fragmented landscape. Evolution doi 10.1111/evo.12484.
  • IUCN (2015) The IUCN Red List of Threatened Species. Version 2015-4. <www.iucnredlist.org>. Downloaded on 20 November 2015.
  • Lamichhaney, S. Berglund, J., Sällman Almén, M., Maqbool, K., Grabherr, M., Martinez-Barrio, A., Promerova, M., Rubin, C.J., Wang, C., Zamani, N., Grant, B.R., Grant, P.R., Webster, M.T., Andersson, L. (2015) Evolution of Darwin’s finches and their beaks revealed by genome sequencing Nature 518: 371-386. doi:10.1038/nature14181
  • Remsen, J.V. Areta, J.I.Jr., Cadena, C.D., Claramunt, S., Jaramillo, A., Pacheco, J.F., Pérez-Emán, J., Robbins, M.B., Stiles, F.G., Stotz, D.F., Zimmer, K. J. (2016) A Classification of the Bird Species of South America. South American Classification Committee. American Ornithologists' Union http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm
  • IUCN (2017) The IUCN Red List of Threatened Species Version 2016-3. <www.iucnredlist.org>. Downloaded on 03 February 2017.

The “Charles Darwin Foundation for the Galapagos Islands”, in French “Fondation Charles Darwin pour les îles Galapagos”, Association International sans but lucratif (“AISBL”), has its registered office located at Drève du Pieuré 19, 1160 Brussels, and is registered under the trade registry of Brussels under the number 0409.359.103.

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