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of the real lizards, family Lacertidae
Extinct subspecies:
Podarcis pityusensis Escull de Sa Galera (pityusensis)
Types:
Holotype: nonexistent
Terra Typica:
Galera.
Taxonomic notes:
This population originates from a deliberate introduction of 20 Podarcis pityusensis pityusensis from Ibiza by EISENTRAUT in 1930. According MARTÍNEZ-RICA & CIRER (1982) and VAN DEN BERG et al. (2013, unpublished data) extinct.
Relevant taxonomic literature:
Eisentraut, M. (1930) -
Böhme, W. & Eisentraut, M. (1981) -
Es wird über einen 1930 angesetzten Versuch berichtet, bei dem auf einem bis dahin eidechsenfreien Felseiland (Dado Grande bei Ibiza, Pityusen) Männchen einer melanistischen und Weibchen einer grünen Inselpopulation von Podarcis pityusensis ausgesetzt wurden. Die Untersuchung von sechs fünf Jahre später gefangenen Tieren ergibt, dass die Vermischung zu erhöhter Variabilität und gesteigertem Größenwuchs geführt hat. Eine erneute Kontrolle dieses noch vorläufigen Ergebnisses wird angeregt.
Martínez-Rica, J.P. & Cirer, A.M. (1982) -
The status of the populations of Podarcis pityusensis on about 70 islets and small islands around Ibiza and Formentera (Balearic Islands) is examined, using data from our own observations, and, to a lesser amount, other publications. Lizard populations were found on 43 islets, but data are lacking for another 13. Only 10 sites (18 %) have abundant and well-maintained populations. In 13 localities (23%), there is no geographic isolation between the populations, or this isolation is very poor and incomplete. The high probability of populations mixing, or actual observation of this mixing, in 19 islands (34%) is indicated. Human pressure on lizard populations is strong in 14 cases (25 %). And finally, 18 populations (about one third) may be considered highly endangered or already extinct by elimination or genetic mixing with other populations. Among the subspecies which became extinct through mixing are P.p. miguelensis, P.p. subformenterae, P.p. algae, P.p. sabinae and P.p. grueni. The need for adequate protective measures aimed at the conservation of the remaining populations is emphasized.
Spain
Podarcis pityusensis Escull de Sa Galera: 8 references