Taxonomy:
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Family: Caviidae
Order: Rodentia
Genus: Hydrochoerus
Species: H. hydrochaeris
Evolution:
Subspecies: Lesser Capybara
How long have they been here?:
Around 40-80 million years
Closest Living Relative: Guinea Pigs
Ancestors:
Cavimorphs are the only known ancestors of the modern capybara. They arrived in South America from Africa, until the first capybara was recorded in Argentina 9 million years ago.
Habitat:
Rainfall: 2.3 m of rain annually (7.5 ft.)
Plants: Reeds, Grains, Melons, Squashes, Grass, and Water Plants (switchgrass, crownass, sedges, bermuda grass).
Animals: Rodents, Deer, Rabbits, Kinkajous, Bats, Otters, Jaguar, Ocelot, Oncilla
Temperature: 90-100 F
Terrain: Savannas, Rain Forests, Rivers, Ponds, Lakes; places with dense vegetation.
Distribution:
Continents Found In:
Northern and Central South America
Invasiveness: Not at all
Development:
Stages of Development: Infants, Juvenile, Subadult, Adult
Age Before Sexual Maturity: Females: 7-12 months
Males: 15-24 months
Activities and Environment of Stages: They stay in the same space all their lives, only moving into water when there is danger.
Differences between Males and Females: Males have a visible scent gland on their heads, while females are a little bit bigger than the males.
ICUN Rating:
Rating: Least Concern
Population: 500,000
Population Trend: Increasing
Impact of Humans:
What has Happened:
Hunted for meat and hide for leather, deforestation, and rodent control.
Potential Future Impacts: Population of capybaras will go down causing unbalance in their ecosystem.
How Long Humans Have Interacted with Capybara: 1990's
Efforts being made: People are trying to advocate on social media to stop Capybara from being listed as a vermin species so they don't get killed.
Description:
Physical Description:
Short-haired
Brownish
Short legs
Small Ears
Almost no tail
Key Characteristics:
Largest Living Rodent
Looks like a large guinea pig
Barrel-Shaped Body
Heavy, Blunt Muzzle
Webbed Feet
Large cheek teeth
Size: 20-24 in.
Weight: 77-150 lbs.
Life Span: 8-10 Years
Difference Between Males and Females:
The male capybara can be distinguished from the female by the obvious, highly developed scent gland on top of their snout.
Diet:
What They Eat:
Aquatic plants, grasses, barks, tubers, sugar cane.
How Often They Eat:
Graze in the morning and evening, consuming up to 3-3.5 kg.
How They Get Food:
They use their long, sharp teeth for grazing on grass and water plants.
Special Foods: Melons
Reproduction:
How Often They Mate: Once a year
How Many Mates They Have: Males can have up to 2-3 females as their mate.
Time of Year: April or May
Mating Rituals: Males detect when a female is ready to breed by her scent, and they only mate in water.
Number of Offspring Produced: 4-5 offspring per year
Unique Characteristics: They breed in the water during the rainy season.
Social Structures:
Packs or Solo: They don't mind being alone, but they can live in groups up to 40.
Roles in Community: Provide value for the ecosystem as part of the food chains, converting vegetative matter into forms consumed by predators.
Male or Female Led: Male
What Make up the Group: A dominant adult male, one or more adult females, one or more subordinate males, and several young.
How They Interact With Each Other: They communicate with one another through barks, chirps, whistles and purrs. They use scent glands to mark their territory and communicate.
Causes of Death:
Predation: Jaguars, pumas, ocelots, eagles, and caimans.
Sexual Competition: None
Disease: In zoos they can die from and infection called YPT infection. Can die from protozoan and metazoan-derived parasitic diseases.
Other: Sugar, Azaleas, Chinaberry Trees
Competition:
Inter-species: They do not have competition with one another, other than the males trying to find mates during mating season.
Intra-species: They try to protect their mates from other potential predators during mating season.
What They Compete Over: Food and Safety
Affect of Invasive Species: None