@article {4111, title = {Erstnachweis einer nat{\"u}rlichen Vermehrung der Rotwangen-Schmuckschildkr{\"o}te (Trachemys scripta elegans) auf der griechischen Insel Kos}, journal = {Schildkr{\"o}ten im FokusSchildkr{\"o}ten im Fokus}, volume = {3}, number = {3}, year = {2006}, pages = {29-34}, abstract = {During a herpetological survey in April 2006 the authors focused on the native Mauremys rivulata and the non-native red-eared slider (Trachemys scripta elegans). 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 were 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.Conclusions:{\textbullet} There is no feral population of Trachemys scripta elegans on Kos.{\textbullet} Trachemys scripta elegans is capable of surviving and breeding on the Mediterranean island of Kos.{\textbullet} 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 nativeMauremys 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!}, author = {Bruekers, Jaco and Uijtterschout, Guus and Brouwer, Arthur} } @article {4112, title = {Morphologische Beobachtungen an Testudo graeca ibera auf der Insel Kos, Griechenland bez{\"u}glich des Schwanzschildes (Supracaudale).}, journal = {Schildkr{\"o}ten im FokusSchildkr{\"o}ten im Fokus}, volume = {4}, number = {3}, year = {2007}, month = {1 August}, pages = {3-10}, isbn = {1612-7900}, author = {Bruekers, Jaco and Uijtterschout, Guus and Brouwer, Arthur} } @article {4113, title = {Morphologische Beobachtungen an Testudo graeca ibera auf der Insel Kos, Griechenland bezueglich des Schwanzschildes (Supracaudale).}, journal = {Schildkr{\"o}ten im FokusSchildkr{\"o}ten im Fokus}, volume = {4}, number = {3}, year = {2007}, note = {Morphologische Beobachtungen an Testudo graeca ibera auf der Insel Kos, Griechenland bezueglich des Schwanzschildes (Supracaudale).}, month = {1 August}, pages = {3-10}, abstract = {During a herpetological survey at the island of Kos, the authors observed Testudo graeca ibera. The portion oftortoises that show a divided supracaudal shield was analysed. This question is of interest because in the literaturethis is one of the so-called typical characters used to separate it from other European species Testudo hermanni(s.l.). From 115 specimens examined, 8 showed a divided supracaudal, thus 7 \% in total. Furthermore significantdifferences exist between sites. In one place only 2 of 60 had this characteristic, but 5 of 24 at another site.Additionally the authors remark on unexpected differences in morphology (Marginalia) in one population.}, isbn = {1612-7900}, author = {Bruekers, Jaco and Uijtterschout, Guus and Brouwer, Arthur} } @article {4114, title = {Ektoparasiten (Zecken) an Testudo graeca ibera auf der Insel Kos, Griechenland.}, journal = {Schildkr{\"o}ten im FokusSchildkr{\"o}ten im Fokus}, volume = {5}, number = {3}, year = {2008}, month = {1 August}, pages = {19-24}, isbn = {1612-7900}, author = {Bruekers, Jaco and Uijtterschout, Guus and Brouwer, Arthur} }