Mazama americanared brocket

Ge­o­graphic Range

Red brock­ets are na­tive to the neotrop­i­cal re­gion rang­ing from south­ern Mex­ico to north­ern Ar­gentina and from sea level up to 5000 m in el­e­va­tion. ("Arkive im­ages of life on earth", 2011; Abril, 2010; Hur­tado and Jorge, 2006)

Habi­tat

Red brock­ets live in dense trop­i­cal forests with closed canopies and pre­fer ei­ther moist or re­ally dry cli­mates. They tend to stay near marshes, swamps, and streams along thick veg­e­ta­tive cover. Their small body size helps them to move eas­ily through water and dense veg­e­ta­tion and re­main un­no­ticed by preda­tors. When night falls, red brock­ets for­age on for­est edges, in agri­cul­tural fields, and in gar­dens. ("Arkive im­ages of life on earth", 2011; Gon­za­lez, et al., 2009; Hur­tado and Jorge, 2006)

  • Aquatic Biomes
  • rivers and streams
  • Range elevation
    0 to 5000 m
    0.00 to 16404.20 ft

Phys­i­cal De­scrip­tion

Red brock­ets are the largest mem­bers of the genus of brocket deer. The head and neck ex­hibit a light gray­ish-brown color. The inner thighs, throat, tail, and inner part of the ears are white. The rest of their bod­ies are red­dish brown to chest­nut red in color and young brock­ets are born with white spots. Males tend to be larger and have spikes to pro­tect against preda­tors. Their shoul­der height mea­sures 65 to 80 cm, tail length mea­sures 8 to 15 cm, and the head to body length mea­sures 103 to 146 cm. ("Arkive im­ages of life on earth", 2011; Abril, 2010; Gon­za­lez, et al., 2009)

  • Range mass
    20 to 55 kg
    44.05 to 121.15 lb
  • Range length
    103 to 146 cm
    40.55 to 57.48 in

Re­pro­duc­tion

Lit­tle in­for­ma­tion is known about the mat­ings sys­tems of red brock­ets.

In the north­east­ern Pe­ru­vian Ama­zon, red brocket deer con­ceive dur­ing all months of the year ex­cept from Sep­tem­ber and Oc­to­ber. In Suri­nam, they re­pro­duce from Sep­tem­ber to April. De­pend­ing on where the red brocket deer are lo­cated, they may have peaks in con­cep­tion dur­ing the dry sea­sons. Fe­males be­tween the ages of 0 and 4 years are more ca­pa­ble of birthing two off­spring, whereas fe­males be­tween the ages of 4 and 6 years usu­ally only pro­duce one. Fe­males reach sex­ual ma­tu­rity around 11 months of age and males reach ma­tu­rity around 12 months of age. ("Arkive im­ages of life on earth", 2011; Branan, 1987; Gon­za­lez, et al., 2009; Hur­tado and Jorge, 2006)

  • Breeding interval
    There is little information regarding the frequency of red brocket breeding.
  • Breeding season
    Red brockets breed throughout the year depending on rainfall.
  • Average number of offspring
    1.2
  • Average number of offspring
    1.3
    AnAge
  • Range gestation period
    222 to 228 days
  • Average weaning age
    6 months
  • Range age at sexual or reproductive maturity (female)
    11 to 13 months
  • Average age at sexual or reproductive maturity (male)
    12 months
  • Average age at sexual or reproductive maturity (male)
    Sex: male
    365 days
    AnAge

Lit­tle in­for­ma­tion is known about the parental in­vest­ment of red brock­ets.

Lifes­pan/Longevity

Red brock­ets live be­tween 7 and 12 years of age, but due to the elu­sive­ness of this species, it is dif­fi­cult to ob­tain suf­fi­cient data. ("Arkive im­ages of life on earth", 2011; Abril, 2010; Branan, 1987; Gon­za­lez, et al., 2009; Hur­tado and Jorge, 2007)

Be­hav­ior

Red brock­ets are ex­tremely hard to re­search be­cause of the habi­tat in which they live and their preda­tor avoid­ance tech­niques. If they are spot­ted by a preda­tor or can hear some­thing ap­proach­ing, they some­times freeze in place. When in more im­me­di­ate dan­ger, red brock­ets leap through the veg­e­ta­tive for­est or swim across to the other side of a river. Red brock­ets are both di­ur­nal and noc­tur­nal and are often seen alone. Once the fe­male gives birth, it will hide the young and leave it for an un­known pe­riod of time be­fore com­ing back and nurs­ing it until it has reached sex­ual ma­tu­rity. ("Arkive im­ages of life on earth", 2011; Abril, 2010; Branan, 1987; Gon­za­lez, et al., 2009; Hur­tado and Jorge, 2006)

Home Range

Lit­tle is known about the home range of red brocket deer. ("Arkive im­ages of life on earth", 2011; Abril, 2010; Gayot, 2004; Gon­za­lez, et al., 2009; Hur­tado and Jorge, 2006; Li­cona, 2011)

Com­mu­ni­ca­tion and Per­cep­tion

Lit­tle in­for­ma­tion is known about the com­mu­ni­ca­tion and per­cep­tion of red brock­ets.

Food Habits

Red brocket diets con­sist mainly of fruit and some leaves and fi­brous ma­te­r­ial. Dur­ing the wet sea­son when food avail­abil­ity is low, ttheir diet may con­sist mainly of fungi. In ex­treme cases where fruit and fungi be­come scarce, it may eat stems, bark, peti­oles, leaves, and an­i­mal mat­ter in­stead. ("Arkive im­ages of life on earth", 2011; Bod­mer, 1990; Gayot, 2004)

  • Plant Foods
  • leaves
  • roots and tubers
  • wood, bark, or stems
  • seeds, grains, and nuts
  • fruit
  • flowers
  • Other Foods
  • fungus

Pre­da­tion

Red brock­ets stand low to the ground, have a red­dish-brown fur color to cam­ou­flage with the trop­i­cal veg­e­ta­tion in the back­ground, and are well adapted for mov­ing through thick veg­e­ta­tive mat­ter. Anti-preda­tory adap­ta­tions be­hav­iors em­ployed by red brock­ets in­clude freez­ing, swim­ming, and cam­ou­flage. If a preda­tor de­cides to chase a red brocket, it will al­ter­nate be­tween leap­ing and freez­ing be­hav­iors in order to con­fuse the preda­tor. If red brock­ets are near a river, they will use their ex­cep­tional swim­ming skills to es­cape. Known preda­tors of red brock­ets are pumas, jaguars, and hu­mans. Pumas and jaguars are stealthy hunters that often wait from a dis­tance for the most op­por­tunis­tic time pounce. Hu­mans have hunted red brock­ets for meat and trade. (Harm­sen, et al., 2011)

  • Anti-predator Adaptations
  • cryptic

Ecosys­tem Roles

Red brock­ets play an es­sen­tial role within the Ama­zon­ian ecosys­tem. They alter plant com­mu­ni­ties and the over­all struc­ture of the for­est by graz­ing and dis­pers­ing seeds. With­out red brock­ets, cer­tain plant seeds would not be dis­persed and might be­come en­dan­gered or face ex­tinc­tion. Red brock­ets are also the main source of food for jaguars and pumas. (Li­cona, 2011)

  • Ecosystem Impact
  • disperses seeds
  • creates habitat

Eco­nomic Im­por­tance for Hu­mans: Pos­i­tive

Red brock­ets pro­vide valu­able meat and a means of trade for hu­mans. ("Arkive im­ages of life on earth", 2011; Hur­tado and Jorge, 2007; Li­cona, 2011)

  • Positive Impacts
  • food
  • body parts are source of valuable material
  • research and education

Eco­nomic Im­por­tance for Hu­mans: Neg­a­tive

Red brock­ets oc­ca­sion­ally cause dam­age to agri­cul­tural fields. ("Arkive im­ages of life on earth", 2011; Gayot, 2004; Li­cona, 2011)

  • Negative Impacts
  • crop pest

Con­ser­va­tion Sta­tus

Lit­tle is known of the con­ser­va­tion sta­tus of red brocket deer.

Con­trib­u­tors

Kyle Kos­sel (au­thor), Uni­ver­sity of Wis­con­sin-Stevens Point, Christo­pher Yahnke (ed­i­tor), Uni­ver­sity of Wis­con­sin-Stevens Point, Ale­cia Stew­art-Mal­one (ed­i­tor), Uni­ver­sity of Wis­con­sin-Stevens Point, Laura Podzikowski (ed­i­tor), Spe­cial Pro­jects.

Glossary

Neotropical

living in the southern part of the New World. In other words, Central and South America.

World Map

acoustic

uses sound to communicate

agricultural

living in landscapes dominated by human agriculture.

bilateral symmetry

having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. Synapomorphy of the Bilateria.

chemical

uses smells or other chemicals to communicate

cryptic

having markings, coloration, shapes, or other features that cause an animal to be camouflaged in its natural environment; being difficult to see or otherwise detect.

diurnal
  1. active during the day, 2. lasting for one day.
endothermic

animals that use metabolically generated heat to regulate body temperature independently of ambient temperature. Endothermy is a synapomorphy of the Mammalia, although it may have arisen in a (now extinct) synapsid ancestor; the fossil record does not distinguish these possibilities. Convergent in birds.

folivore

an animal that mainly eats leaves.

food

A substance that provides both nutrients and energy to a living thing.

forest

forest biomes are dominated by trees, otherwise forest biomes can vary widely in amount of precipitation and seasonality.

frugivore

an animal that mainly eats fruit

granivore

an animal that mainly eats seeds

herbivore

An animal that eats mainly plants or parts of plants.

iteroparous

offspring are produced in more than one group (litters, clutches, etc.) and across multiple seasons (or other periods hospitable to reproduction). Iteroparous animals must, by definition, survive over multiple seasons (or periodic condition changes).

marsh

marshes are wetland areas often dominated by grasses and reeds.

motile

having the capacity to move from one place to another.

native range

the area in which the animal is naturally found, the region in which it is endemic.

nocturnal

active during the night

rainforest

rainforests, both temperate and tropical, are dominated by trees often forming a closed canopy with little light reaching the ground. Epiphytes and climbing plants are also abundant. Precipitation is typically not limiting, but may be somewhat seasonal.

scrub forest

scrub forests develop in areas that experience dry seasons.

sexual

reproduction that includes combining the genetic contribution of two individuals, a male and a female

sexual ornamentation

one of the sexes (usually males) has special physical structures used in courting the other sex or fighting the same sex. For example: antlers, elongated tails, special spurs.

solitary

lives alone

swamp

a wetland area that may be permanently or intermittently covered in water, often dominated by woody vegetation.

tactile

uses touch to communicate

terrestrial

Living on the ground.

tropical

the region of the earth that surrounds the equator, from 23.5 degrees north to 23.5 degrees south.

tropical savanna and grassland

A terrestrial biome. Savannas are grasslands with scattered individual trees that do not form a closed canopy. Extensive savannas are found in parts of subtropical and tropical Africa and South America, and in Australia.

savanna

A grassland with scattered trees or scattered clumps of trees, a type of community intermediate between grassland and forest. See also Tropical savanna and grassland biome.

temperate grassland

A terrestrial biome found in temperate latitudes (>23.5° N or S latitude). Vegetation is made up mostly of grasses, the height and species diversity of which depend largely on the amount of moisture available. Fire and grazing are important in the long-term maintenance of grasslands.

visual

uses sight to communicate

year-round breeding

breeding takes place throughout the year

Ref­er­ences

2011. "Arkive im­ages of life on earth" (On-line). Ac­cessed Sep­tem­ber 25, 2011 at http://​www.​arkive.​org/​red-brocket/​mazama-americana/#​text=Habitat.

Abril, V. 2010. Elu­ci­dat­ing the Evo­lu­tion of the Red Brocket Deer Mazama amer­i­cana Com­plex (Ar­tio­dactyla; Cervi­dae). Cy­to­ge­netic and Genome Re­search, 128: 177-187.

Bod­mer, R. 1990. Re­sponses of un­gu­lates to sea­sonal in­un­da­tions in the Ama­zon flood­plain. Jour­nal of Trop­i­cal Ecol­ogy, 6: 191-201.

Branan, W. 1987. Re­pro­duc­tive ecol­ogy of white-tailed and red brocket deer in Suri­name. RES. SYMP. NATL. ZOOL. PARK, 6: 344-351.

Gayot, M. 2004. Com­par­a­tive diet of the two for­est cervids of the genus Mazama in French Guiana. Jour­nal of Trop­i­cal Ecol­ogy, 20: 31-43.

Gon­za­lez, S., J. Mal­don­ado, J. Or­tega, C. Ta­larico, L. Bide­garay. 2009. Iden­ti­fi­ca­tion of the en­dan­gered small red brocket deer ( Mazama bororo) using non­in­va­sive ge­netic tech­niques (Mam­malia; Cervi­dae). Mol­e­c­u­lar Ecol­ogy Re­sources, 9: 754-758.

Harm­sen, B., R. Fos­ter, S. Sil­ver, L. Ostro, C. Don­caster. 2011. Jaguar and puma ac­tiv­ity pat­terns in re­la­tion to their main prey. Mam­malian Bi­ol­ogy, 76: 320-324.

Hur­tado, G., L. Jorge. 2007. As­sess­ing the sus­tain­abil­ity of brocket deer hunt­ing in the Tamshiy­acu-Tahuayo Com­mu­nal Re­serve, north­east­ern Peru. Con­ser­va­tion- Bi­o­log­i­cal Con­ser­va­tion, 138: 412-420.

Hur­tado, G., L. Jorge. 2006. Re­pro­duc­tive bi­ol­ogy of fe­male Ama­zon­ian brocket. Eu­ro­pean Jour­nal of Wildlife Re­search, 3: 171-177.

Li­cona, M. 2011. Using un­gu­late oc­cur­rence to eval­u­ate com­mu­nity-based con­ser­va­tion within a bios­phere re­serve model. An­i­mal Con­ser­va­tion APR 2011 pages: 206-214 vol­ume: 14 issue: 2, 14: 206-214.