Animal Bytes
 
Jaguar
 
Common Name: jaguar
   
Class: Mammalia
   
Order: Carnivora
   
Family: Felidae
   
Genus species: Panthera onca

 

FAST FACTS
FUN FACTS
ECOLOGY & CONSERVATION
BIBLIOGRAPHY
 
 
Fast Facts
Description: The base color of their coat varies from pale yellow to reddish brown (with melanistic - black - coloration commonly exhibited). A subtle countershading is characteristic, with a deeper tone to the dorsal coat fading to a light/white ventral coat. Solid, black spots are found along the head, underbelly, and legs. Oscellated spots occur along the back and flanks. The general build is stout, compact, and powerful.
   
Size: Head & body length = 1,120 - 1,850 mm
Tail length = 450 - 750 mm
   
Weight: 36 - 185 kg; males are generally 90-120 kg, females are generally 60-90 kg
   
Diet: Most significantly, peccaries, capybaras, tapirs, crocodilians, and fish
   
Gestation: 93-105 days; weaned at 5-6 months
   
Sexual maturity: 2-4 years
   
Life span: approximately 24 years
   
Range: Southern United States to Argentina
   
Habitat: Forests and savannahs, with occasional intrusion into scrub and desert environments. Presence is often tied to a substantial fresh water source.
   
Population: Documented figures include 600-1,000 in Belize; 500 in Guatemala; 500 in Mexico.
   
Status: Endangered by USDI; near threatened by IUCN; appendix I of CITES
   
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Fun Facts
1. Though territorial ranges are usually established by jaguars, these territories may shift due to seasonal conditions. Additionally, male jaguars are known to wander for hundreds of kilometers beyond their established territory.
   
2. A population density study in southwestern Brazil indicated that (for the region) there was one jaguar per every 25 km2. While females maintained a home range of 25-38 km2 (with little overlap), males maintained ranges roughly twice as large (with overlap into multiple female home ranges).
   
3. Through the end of the Pleistocene, jaguars could be found throughout the southern United States.
   
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Ecology and Conservation
 

While the jaguar once populated the southern United States, Central America, and South America, its presence throughout this range has been extremely diminished. It is rare or non-existant within the United States, Mexico, most of Central America, eastern Brazil, Uruguay, and much of Argentina. The jaguar's numbers have fallen primarily as a result of commercial fur hunting (with an estimated 15,000 Brazilian jaguars being killed annually throughout the 1960's), habitat loss, and culling actions attempting to diminish their threat to livestock and humans.

   
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Bibliography
 

Nowak, Ronald M. Walker's Mammals of the World - Volume I (Sixth Edition)

   
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