The red brocket (''Mazama americana'') is a species of

brocket deer Brockets or brocket deer are the species of deer in the genus ''Mazama''. They are medium to small in size, and are found in the Yucatán Peninsula, Central and South America, and the island of Trinidad. Most species are primarily found in forest ...

from forests in

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the sou ...

, ranging from northern

Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the List of South American countries by area, second-largest ...

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the ...

and the

Guianas The Guianas, sometimes called by the Spanish loan-word ''Guayanas'' (''Las Guayanas''), is a region in north-eastern South America which includes the following three territories: * French Guiana, an overseas department and region of France * ...

. It also occurs on the

Caribbean The Caribbean (, ) ( es, El Caribe; french: la Caraïbe; ht, Karayib; nl, De Caraïben) is a region of the Americas that consists of the Caribbean Sea, its islands (some surrounded by the Caribbean Sea and some bordering both the Caribbean ...

island of

Trinidad Trinidad is the larger and more populous of the two major islands of Trinidad and Tobago. The island lies off the northeastern coast of Venezuela and sits on the continental shelf of South America. It is often referred to as the southernmos ...

(it also occurred on the island of

Tobago Tobago () is an island and ward within the Republic of Trinidad and Tobago. It is located northeast of the larger island of Trinidad and about off the northeastern coast of Venezuela. It also lies to the southeast of Grenada. The offic ...

until very recent historical times, but has been extirpated there).

Taxonomy

It formerly included the

Central American red brocket The Central American red brocket (''Mazama temama'') is a species of brocket deer ranging from southern Mexico, through Central America, to northwestern Colombia. Taxonomy In 1792 Robert Kerr originally described it as a unique separate spe ...

(''M. temama'') and sometimes the

Yucatan brown brocket The Yucatan brown brocket (''Odocoileus pandora'') is a small species of deer native to Central America. Taxonomy It has been previously treated as a disjunct subspecies of the gray brocket (''Mazama gouazoubira)'' or a subspecies of the re ...

(''M. pandora'') as

subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics ( morphology), but that can successfully interbreed. Not all specie ...

. Considerable taxonomic confusion still exists for the populations remaining in the red brocket. Pending a solution to this, it has been evaluated as

data deficient A data deficient (DD) species is one which has been categorized by the International Union for Conservation of Nature (IUCN) as offering insufficient information for a proper assessment of conservation status to be made. This does not necessaril ...

by the

IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

, though as presently defined, it is the most widespread species of brocket. It is

sympatric In biology, two related species or populations are considered sympatric when they exist in the same geographic area and thus frequently encounter one another. An initially interbreeding population that splits into two or more distinct species s ...

with the smaller Amazonian brown brocket over much of its range (the latter tends to have significantly lower population densities). The

karyotype A karyotype is the general appearance of the complete set of metaphase chromosomes in the cells of a species or in an individual organism, mainly including their sizes, numbers, and shapes. Karyotyping is the process by which a karyotype is disce ...

of the red brocket was initially described as having 2n = 68, FN = 74, and more recently as having 2n varying from 48 to 54 and FN varying from 54 to 56. This variability may indicate the presence of unrecognized species in the population.

Description

Its body is reddish-brown in color, with a lighter grayish-brown head and neck, and partially blackish legs.Trolle, M., and L. H. Emmons (2004). ''A record of a dwarf brocket from lowland Madre de Dios, Peru.'' Deer Specialist Group Newsletter 19: 2–5 The inner thighs and the underside of the tail are white. Fawns are spotted white and lack blackish to the legs. Only the adult male has antlers, and these are small and spike-like. This species is the largest of the brockets. The shoulder height is and the head and body length . These deer typically weigh , but exceptional males may get as large as .

Diet and behaviour

The red brocket browses on vegetation (mainly grasses and tender green roots), preferring fruit and seeds when it is available. They are also known to feed on fungi. In extreme cases where fruit and fungi become scarce, it may eat stems, bark, petioles, leaves, and animal matter instead. It is generally solitary and stays in dense jungles. When alarmed, the animal snorts or stomps its hooves.

Gallery

File:Mazama americana.jpg, Mazama americana File:Red Brocket (Mazama americana).jpg, Red brocket heart, specimen clarified for visualization of anatomical structures File:PZSL1850PlateMammalia24.png

References

Bibliography

* Emmons, L.H. (1997). ''Neotropical Rainforest Mammals'', 2nd ed. University of Chicago Press

External links

Images and information
@ Arthurgrosset.com {{Taxonbar, from=Q1763357 Mazama (genus) Taxa named by Johann Christian Polycarp Erxleben Mammals of the Caribbean Mammals of Argentina Mammals of Bolivia Mammals of Brazil Mammals of Colombia Mammals of Ecuador Mammals of French Guiana Mammals of Guyana Mammals of Paraguay Mammals of Peru Mammals of Suriname Mammals of Trinidad and Tobago Mammals of Venezuela Fauna of the Amazon Fauna of the Cerrado Mammals described in 1777