DELTA BLACK-NOBBED MAP TURTLE
Graptemys nigrinoda
DESCRIPTION
Delta Black-nobbed Map Turtle (Graptemys nigrinoda) is a distinctive freshwater turtle known for its unique shell patterns and coloration. It features a dark, olive-brown carapace with prominent black knobs along the edges, which gives it its name. This species is primarily found in slow-moving rivers and swamps, where it basks on logs and rocks, exhibiting a semi-aquatic lifestyle.
FUN FACTS
- The Delta Black-nobbed Map Turtle is often confused with other map turtle species due to its similar appearance, but its unique shell knobs set it apart
- These turtles play a crucial role in their ecosystem by helping to control insect populations and contributing to the health of aquatic habitats.| Unlike many other turtle species, the Delta Black-nobbed Map Turtle is known for its strong basking behavior, often seen sunning themselves on logs or rocks during the day to regulate their body temperature
QUICK INFO
Lifespan20-30 years in the wild
Average Weight1-2 kg
Average Length20-30 cm
Diet TypeOmnivore
Social Structuresolitary
Activity PatternDiurnal
Breeding SeasonSpring (April-June)
- Habitat
- This turtle inhabits freshwater environments, particularly slow-moving rivers, swamps, and marshes. It prefers areas with abundant vegetation and basking sites.
- Biomes
- Freshwater, Wetlands
- Native Range
- The Delta Black-nobbed Map Turtle is native to the southeastern United States, particularly in the Mississippi River Delta region.
- Continent
- North America
- Countries
- United States
- Diet
- The Delta Black-nobbed Map Turtle primarily feeds on aquatic invertebrates, such as insects and crustaceans, as well as some plant material. Its diet is adapted to its habitat, allowing it to thrive in environments rich in these food sources.
- Diet Type
- Omnivore
- Favorite Food
- aquatic invertebrates, insects
- Social Structure
- solitary
- Activity Pattern
- Diurnal
- Group Size
- 1-5
- Territorial
- 0
LC
VU
1-2 kg
Weight
20-30 cm
Length
- Coloration
- dark olive-brown carapace with black knobs
- Sexual Dimorphism
- Males are typically smaller than females and have longer claws.
- Lifespan
- 20-30 years in the wild
- Offspring per Birth
- 3-10
- Sexual Maturity
- 4-5 years
- Breeding Season
- Spring (April-June)
EN
Endangered
IUCN Red List Status
- Population Status
- The population status of the Delta Black-nobbed Map Turtle is currently of concern due to habitat loss.
- Wild Population Estimate
- Unknown
- Population Trend
- Decreasing
- Endangered
- 1
- Threats
- Main threats include habitat destruction due to urban development and pollution. Additionally, they face risks from predation by raccoons and other animals.
- Predators
- Raccoons, birds of prey, and large fish are known predators of the Delta Black-nobbed Map Turtle.
- Defense Mechanisms
- They can retract into their shells for protection and are adept at swimming away from threats.
- Found in Zoos
- Uncommon