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| Rhynchostruthus socotranus Sclater & Hartlaub, 1881 |
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Rhynchostruthus socotranus socotranus |
The Socotra Grosbeak or Socotra Golden-winged Grosbeak (Rhynchostruthus socotranus) is a finch endemic to Socotra, an island in the Indian Ocean off the coast of Yemen. Philip Lutley Sclater ( November 4, 1829 - June 27, 1913) was an English Lawyer and Zoologist. Karel Johan Gustav Hartlaub ( November 8, 1814 - November 29, 1900) was a German Physician and Zoologist. In Scientific nomenclature, synonyms are different Scientific names used for a single Taxon. Finches are Passerine Birds often Seed -eating found chiefly in the northern hemisphere and Africa. Endemism is the Ecological state of being unique to a place Endemic species are not naturally found elsewhere Socotra or Soqotra ( Arabic سقطرى; Suquṭra) is a small Archipelago of four islands and islets in the Indian Ocean The Indian Ocean is the third largest of the world's Oceanic divisions covering about 20% of the water on the Earth 's surface Yemen ( Arabic: اليَمَن al-Yaman officially the Republic of Yemen ( Arabic: الجمهورية اليمنية al-Jumhuuriyya R. socotranus is by some authorities held to be the only species of the then-monotypic genus Rhynchostruthus, including all other golden-winged grosbeaks therein as subspecies. In Biology, a species is one of the basic units of Biological classification and a Taxonomic rank. Monotypic is an adjective that refers to a taxonomic group with only one type: In Botany, "monotypic" means that a Taxon has only A genus (plural genera from Γένος Latin genus "descent family type gender" is a low-level Taxonomic The Genus Rhynchostruthus is a small group of Finches in the family Fringillinae. The Genus Rhynchostruthus is a small group of Finches in the family Fringillinae. In Zoology, as in other branches of Biology, subspecies is the Taxonomic rank immediately subordinate to a Species. But in recent times the three populations are usually considered a distinct species, with R. In Biology, a species is one of the basic units of Biological classification and a Taxonomic rank. socotranus being limited to the Socotra population, the Arabian Grosbeak becoming R. The Arabian Grosbeak or Arabian Golden-winged Grosbeak ( Rhynchostruthus percivali) is a Finch found in Saudi Arabia, Oman percivali, and the Somali Grosbeak R. The Somali Grosbeak or Somali Golden-winged Grosbeak ( Rhynchostruthus louisae) is a Finch endemic to northern Somalia louisae[1].
Description
The males are grey-brown overall with a black bill, a dark head with a black mask, large white cheek patches, and large, bright yellow patches on the wings and tail. The females are similar to the males though somewhat duller, and the juveniles are rather streaky and lack the adults' distinctive head pattern.
Ecology and status
The Socotra Grosbeak is found in a variety of habitats from the mountains to sea-level. A habitat (which is Latin for "it inhabits" is an Ecological or environmental area that is inhabited by a particular Species. It typically inhabits fairly arid scrub- or woodland dominated by spurges (Euphorbia), acacias (Acacia) and juniper (Juniperus). In general terms the Climate of a local or region is said to be arid when it is characterized by a severe lack of available Water, to the extent of hindering Euphorbia is a Genus of Plants belonging to the family Euphorbiaceae. Acacia is a Genus of Shrubs and Trees belonging to the Subfamily Mimosoideae of the family Fabaceae, first Junipers are Coniferous plants in the genus Juniperus of the cypress family Cupressaceae. The fruits of these plants appear to form the bulk of its diet.
The population is estimated to be about 6500 adult individuals. Despite being limited to a single island, its future appears to be rather secure. Consequently, the IUCN still classifies it as a Species of Least Concern, even after the mainland populations have been split off. Least Concern ( LC) is an IUCN category assigned to extant species or lower taxa which have been evaluated but do not qualify for any other category [2]
Footnotes
References
- BirdLife International (BLI) (2004). BirdLife International (formerly known as the International Council for Bird Preservation, not to be confused with Birds International) is the international conservation Rhynchostruthus socotranus. 2006 IUCN Red List of Threatened Species. The IUCN Red List of Threatened Species (also known as the IUCN Red List or Red Data List) created in 1963 is the world's most comprehensive inventory of the global IUCN 2006. Retrieved on 27 May 2008.
- BirdLife International (BLI) (2008) Socotra Grosbeak Species Factsheet. BirdLife International (formerly known as the International Council for Bird Preservation, not to be confused with Birds International) is the international conservation Retrieved 2008-MAY-27.
- Kirwan, G. M. & Grieve, A. (2007): Studies of Socotran birds II. One, two or three species: towards a rational taxonomy for the Golden-winged Grosbeak Rhynchostruthus socotranus. Bulletin of the African Bird Club 14(2): 159-169.
External links
- Photographs. Retrieved 2008-MAY-27.
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