Schildkröten im Fokus
, Bergheim 3 (3) 2006: 29-34
Jaco Bruekers, Heeswijk-Dinther,
Guus Uijtterschout, Eindhoven, &
Arthur Brouwer, Tegelen
Erstnachweis einer natürlichen Vermehrung der
Rotwangen-Schmuckschildkröte (Trachemys scripta elegans) auf der
griechischen Insel Kos
First record of the red-eared slider (Trachemys scripta elegans)
breeding in the wild on the island of Kos (Greece)
During a herpetological survey in April 2006 the authors focused on the native
and the non-native red-eared slider (Trachemys
). The latter was first seen by one of the authors (JB) in a
large pond in 1993. The red-eared slider has been widely introduced throughout
Europe and it is said to have had a negative impact on native flora and fauna.
For Greece, the red-eared slider is reported from the mainland (Athens), Crete,
Zakynthos and Kos. At first Mauremys rivulata
was hard to locate.
Nevertheless several mature and juvenile specimens were found in their natural
habitat. Trachemys scripta elegans
was observed in a large pond near
the main road at the junction to Pyli. This pond was occupied by ducks and some
geese. In the pond some big eels (Aguilla aguilla
) were seen. The
shrimp (probably Atyaephyra desmarestii
) and a non-native fish species,
the mosquito fish (Gambusia affinis
) were very abundant too. One adult
male and a female slider and also nine adult Mauremys rivulata
found in this pond. The sliders were ignored by the Mauremys rivulata
and no interaction was observed. One of the authors (AB) found a young turtle on
debris in the water. This turtle appeared to be a juvenile slider. It had a bite
mark in the marginals, which could have been a turtle bite. Later a second
mature female red-eared slider could be caught nearby.
- There is no feral population of Trachemys scripta elegans on Kos.
- Trachemys scripta elegans is capable of surviving and breeding on
the Mediterranean island of Kos.
- It is not expected that Trachemys scripta elegans will be able to
establish a population and will cause environmental problems. The sliders have
to deal with the same dangers as the native Mauremys rivulata, such as
traffic, agricultural activities, feral cats and predation by birds.
The authors believe that the negative impact on the environment due to human
activities will be much bigger than the problems caused by feral red-eared
slides ever can be!
Testudines: Emydidae, Trachemys scripta elegans
, invasive species,
hatchling in the wild of Kos, Greece
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