River Tyrannulet

River Tyrannulet

Taxobox
name = River Tyrannulet


status = LC | status_system = IUCN3.1
regnum = Animalia
phylum = Chordata
classis = Aves
ordo = Passeriformes
familia = Tyrannidae
genus = "Serpophaga"
species = "S. hypoleuca"
binomial = "Serpophaga hypoleuca"
binomial_authority = Sclater & Salvin, 1866
synonyms = The River Tyrannulet ("Serpophaga hypoleuca") is a species of bird in the Tyrannidae family, the tyrant flycatchers.It is found in Brazil, Venezuela and Peru; also Colombia and Bolivia.Its natural habitat is subtropical or tropical moist shrubland. Its range consists of several Amazon Basin river corridors and the Orinoco River drainage river corridors.

River corridor range

The River Tyrranulet is found in the Amazon Basin along four major river wildlife corridors; also two rivers in Venezuela, including the lower Orinoco. The river corridors are mostly contiguous stretches, about 100 to 150 km in width.

The rivers in the Amazon Basin, going upstream are the following: Amazon River, (Tocantins, Araguaia— east of the Xingu), Xingu River, Madeira, and Marañón-Ucayali, (in Amazonian Peru). For the Araguaia River, the bird's range continues only downstream to the Tocantin confluence, then down the Tocantins to the Pacific, (500 km east of the Amazon River outlet; the Xingu River confluence range connects to the Tocantins range.) On the Madeira River, from Amazonian Bolivia, the range only extends into the country by 300 km of the 2300 km Madeira River range. Two other Amazon Basin river regions are: a tributary to the Marañón-(named the Amazon River downstream) in northern Peru, and a localized, non-corridor region on the lower Branco River, a tributary to the Amazon's Rio Negro.

In Venezuela, the corridor ranges are on the lower half of the Orinoco River, and the Arauca River corridor to the west, on the Colombia-Venezuela border, about 700 km.

ource

* BirdLife International 2004. [http://www.iucnredlist.org/search/details.php/49855/all Serpophaga hypoleuca] . [http://www.iucnredlist.org 2006 IUCN Red List of Threatened Species. ] Downloaded on 27 July 2007.

External links

* [http://vireo.acnatsci.org/search.html?VIREO_SESSION_ID=7d61e735ce1c031ab8a4ffe2c1a18683&Form=Search&SEARCHBY=Common&KEYWORDS=river+tyrannulet&showwhat=images&AGE=All&SEX=All&ACT=All&Search=Search&VIEW=All&ORIENTATION=All&RESULTS=24 River Tyrannulet photo gallery] VIREO
* [http://www.pbase.com/csloan/image/75523110 Photo-High Res] ; [http://www.pbase.com/csloan/eastern_venezuela_2007&page=6 Article] pbase.com–(Eastern Venezuela)


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