ARRAU RIVER TURTLE
Podocnemis expansa
DESCRIPTION
Arrau River Turtle (Podocnemis expansa) is commonly known as the Giant South American River Turtle and is one of the largest freshwater turtles in the world. It has a distinctive, flattened shell that can reach lengths of up to 1.8 meters, with a coloration that ranges from brown to olive green. These turtles are primarily found in the Amazon River basin, where they play a crucial role in the ecosystem by aiding in seed dispersal and maintaining the health of aquatic vegetation.
FUN FACTS
- Arrau River Turtles are known for their impressive nesting behavior, where females can lay up to 50 eggs in a single clutch, often returning to the same nesting sites year after year
- Additionally, these turtles have a unique adaptation that allows them to hold their breath for extended periods, enabling them to dive underwater for food and evade predators
QUICK INFO
Lifespan20-30 years in the wild
Average Weight100-200 kg
Average Length1.5-2.5 m
Diet TypeHerbivore
Social Structuregroup — they often gather in large numbers during the nesting season.
Activity PatternDiurnal
Breeding SeasonSpring (March-May)
- Habitat
- These turtles inhabit slow-moving rivers, lakes, and floodplains, often found in areas with abundant vegetation. They prefer shallow waters where they can easily access their food sources.
- Biomes
- Tropical Rainforest, Freshwater
- Native Range
- The native range of the Arrau River Turtle includes the Amazon River basin, particularly in countries like Brazil, Colombia, Venezuela, and Peru.
- Continent
- South America
- Countries
- Brazil, Colombia, Venezuela, Peru
- Diet
- Arrau River Turtles are primarily herbivorous, feeding on a variety of aquatic plants, fruits, and seeds. They are known to consume large quantities of vegetation, which is essential for their growth and health.
- Diet Type
- Herbivore
- Favorite Food
- aquatic plants, fruits, seeds
- Social Structure
- group — they often gather in large numbers during the nesting season.
- Activity Pattern
- Diurnal
- Group Size
- 20-100
- Territorial
- 0
LC
LC
100-200 kg
Weight
1.5-2.5 m
Length
- Coloration
- brown to olive green with a flattened shell
- Sexual Dimorphism
- males are generally smaller than females
- Lifespan
- 20-30 years in the wild
- Offspring per Birth
- 20-50
- Sexual Maturity
- 5-7 years
- Breeding Season
- Spring (March-May)
EN
Endangered
IUCN Red List Status
- Population Status
- The population of Arrau River Turtles is currently declining due to habitat loss and hunting.
- Wild Population Estimate
- 10,000-15,000
- Population Trend
- Decreasing
- Endangered
- 1
- Threats
- Main threats include habitat destruction due to deforestation, pollution, and illegal hunting for their meat and eggs. These factors have significantly impacted their populations in recent years.
- Conservation Program
- Conservation programs in Brazil focus on habitat protection and sustainable management of turtle populations.
- Predators
- Caiman, large fish, and birds of prey are known to prey on juvenile Arrau River Turtles. Adult turtles have fewer natural predators due to their size.
- Defense Mechanisms
- Arrau River Turtles can retreat into their shells for protection against predators.
- Found in Zoos
- Uncommon