Eurasian Pond And River Turtles
Scientific Classification & Quick Facts
| Common name | Eurasian pond and river turtles |
| Scientific name | Geoemydidae |
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Testudines |
| Type | Reptile (family of about 70 turtle species) |
| Diet | Meat, plants or both, depending on species |
| Habitat | Freshwater, coasts and forests |
| Native range | Asia, Europe and Central and South America |
| Size | About 10–80 cm long |
| Weight | Up to about 50 kg (110 lb) |
| Special feature | Some species’ sex depends on nest temperature |
The Eurasian pond and river turtles as well as Neotropical wood turtles belong to the Geoemydidae (formerly Bataguridae) family. They are very large and diverse, belonging to the order Testudines (turtles). There are about 70 species.
Anatomy
Geoemydidae turtles vary in size (about 10 to 80 cm long) and are highly sexually dimorphic. They generally have webbed toes, and their flexible pelvic girdles interact fluently and coherently with the plastron. Their necks vertically draw back. The carapaces consist of 24 marginal scutes. The plastron consists of 12 scutes. They have no mesoplastron. The abdominal and pectoral scutes touch the marginal scutes.
The female Indian tent turtle is typically 1 foot (30.5 centimeters) long. The males grow to only about a third of the size of the female, The larger family members can weigh up to 110 pounds (50 kilograms). Many of them have upper shells that measure 81 cm or 32 inches in length
Habitat
The members of the family live in the ocean coastline saltwater, freshwater areas that are inland and as terrestrials in forests. We can find them in the tropical areas of countries like China and the East Indies as well as Europe. You can also see them from northern Mexico in North America to Ecuador and Brazil in South America. They also live in subtropical regions bordering the tropics.
Breeding
The males are generally more active than females in breeding. Each clutch has a relatively small number of eggs produced many times a year. In some species, the sex determination depends on the temperature. Others have varied sex chromosomes. Around 70% of the species are vulnerable, if not endangered.
Food
Some of these pond and river turtles and Neotropical wood turtles are meat-eaters, some are vegetarians, while others feed on both meat and plants. In Chinese stripe-necked turtles, the young turtles, and males feed mainly insects, while the females are predominantly vegetarians, feeding mostly on seeds, leaves and roots of shoreline plants.
Conservation Status
According to IUCN estimates, eleven species are Vulnerable, meaning that the risk is so high that in the wild, they will eventually become extinct. Eighteen species face a very high risk of extinction or fall under the endangered list. Thirteen species face a very high risk of Extinction (critically endangered). You consider a species as extinct when there is no longer any turtle living in the species. The Indian sawbuck turtle and river terrapin belong to the endangered, category, according to the U.S. Fish and Wildlife Service. You can trace the causes for the decline of turtles to the loss of their habitat as well as to over-harvesting. Efforts are on to breed some of these most threatened species in captivity in order to increase their numbers.
As a Pet
Turtles are much in demand in the pet trade. The painted terrapin, for instance, is highly popular, since some believe that these turtles bring good fortune.
Eurasian pond and river turtles FAQs
What are Geoemydidae turtles?
Geoemydidae is a big family of about 70 turtle species. It includes the Eurasian pond and river turtles and the Neotropical wood turtles.
How big are Eurasian pond and river turtles?
They vary a lot, from about 10 to 80 centimetres long. The largest can weigh up to 110 pounds (50 kg).
What do Eurasian pond and river turtles eat?
It depends on the species. Some eat meat, some eat plants and some eat both. In one stripe-necked turtle, young ones and males eat insects, while females eat mostly plants.
Where do Eurasian pond and river turtles live?
They live in many places, from sea coasts to inland fresh water and forests. They are found in tropical Asia and the East Indies, and some live in Central and South America.
Are Eurasian pond and river turtles endangered?
Many are. About 70% of the species are vulnerable or worse, mainly because their habitats are being lost and people over-harvest them.
Randi Jones is the owner and founder of the Nature Gift Store, an online retailer specializing in nature-themed gifts, educational science projects, live animal nature kits and real butterfly artwork. A biology graduate who fell in love with insects, she founded the company in 2001 to make active learning about nature fun, accessible and engaging for children and adults. Her store offers real butterfly frames, home and garden decor and educational live animal kits, including ant farms, worm farms, tadpoles, ladybugs and hermit crabs, and she runs a bug museum in Washington featuring live animals like Eddie the Iguana alongside other reptiles and insects.
