Art:

Podarcis tiliguerta  (GMELIN, 1789)

Unterarten (11):

Podarcis tiliguerta tiliguerta  (GMELIN, 1789)

Podarcis tiliguerta contii  LANZA & BRIZZI, 1977

Podarcis tiliguerta eiselti  (LANZA, 1972)

Podarcis tiliguerta granchii  LANZA & BRIZZI, 1974

Podarcis tiliguerta grandisonae  (LANZA, 1972)

Podarcis tiliguerta maresi  (LANZA, 1972)

Podarcis tiliguerta pardii  LANZA & BRIZZI, 1974

Podarcis tiliguerta ranzii  (LANZA, 1966)

Podarcis tiliguerta rodulphisimonii  BRIZZI & LANZA, 1975

Podarcis tiliguerta sammichelii  LANZA, 1976

Podarcis tiliguerta toro  (MERTENS, 1932)

Synonyme:

Lacerta tiliguerta  GMELIN, 1789

Podarcis muralis contii  LANZA & BRIZZI, 1977

Podarcis tiliguerta  ENGELMANN et al, 1993

Trivialnamen:

Tyrrhenian Wall Lizard (Englisch)
Tyrrhenische Mauereidechse (Deutsch)

Taxonomische Hinweise:

Die Art ist in Sardinien und Korsika taxonomisch einheitlich, genetisch aber ungemein heterogen. Andererseits wurden von kleinen und kleinsten Randinselchen zahlreiche Unterarten beschrieben, deren Status höchst fragwürdig ist.

WERNER MAYER

Relevante taxonomische Literatur:

• Gmelin, J.F. (1789) -  Description of Podarcis tiliguerta tiliguerta. -  In: “ Caroli a Linné Systema naturae”. 13. ed., Tom 1 Pars 3. G. E. Beer, Lipsiae. pp. 1033-1516.   

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• Harris, D.J. & Pinho, C. & Carretero, M.A. & Corti, C. & Böhme, W. (2005) -  Determination of genetic diversity within the insular lizard Podarcis tiliguerta using mtDNA sequence data, with a reassessment of the phylogeny of Podarcis. -  Amphibia-Reptilia, 26 (3): 401-407.    

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  Conclusions Podarcis tiliguerta appears to be a species complex. Further morphological and molecular analyses will be needed to confirm this. Podarcis sicula is not sister taxon to P. muralis, nor is P. wagleriana a genetic lineage within P. filfolensis as has been previously suggested. However relationships between most Podarcis species remain unresolved.

• Bruschi, S. & Corti, C. & Carretero, M.A. & Harris, D.J. & Lanza, B. & Leviton, A. (2006) -  Comments on the status of the Sardinian-Corsican lacertid lizard Podarcis tiliguerta. -  Proceedings of the California Academy of Sciences, 57: 215-236.    

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  Podarcis tiliguertais a lacertid lizard endemic to Corsica, Sardinia and many of their satellite islands. The purpose of this study was to assess the relationships among the various island populations using morphological characters, to assess the usefulness of these characters in phylogenetic studies, and to test the concordance of morphologi- cal and earliergenetical studies. Snout-vent length and 11 pholidotic characters have been studied on 2783 specimens from localities on the two main islands and the majority of theirrespective satellite islands. Data formales and females are analyzed separately using uni- and multivariate statistical methods; the results are compared to previous genetical analyses. With few exceptions, the two populations, one on Corsica, the second on Sardinia (and theirsatellite islands), are readily distinguish- able. We argue that the few exceptions may be due to a foundereffect and/orgenet- ic drift. The male sample from northern Corsica and both sex samples from southern Corsica present unresolved problems because they group with the Sardinian clade. Ourresults, forthe most part, are in accord with those obtained with genetical analy- ses, but furtherstudies are needed to clarify the unresolved questions.

• Rodríguez, V. & Buades, J.M. & Brown, R.P. & Terrasa, B. & Pérez-Mellado, V. & Corti, C. & Delaugerre, M. & Castro, J.A. & Picornell, A. & Ramon, M.M. (2017) -  Evolutionary history of Podarcis tiliguerta on Corsica and Sardinia. -  BMC Evolutionary Biology, 17: 27.    

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  Background: Podarcis tiliguerta is a wall lizard endemic to the Mediterranean islands of Corsica and Sardinia. Previous findings of high mtDNA and morphological diversity have led to the suggestion that it may represent a species complex. Here, we analysed mitochondrial and nuclear markers (mtDNA, 3110 bp; 6 nDNA loci, 3961 bp) in P. tiliguerta sampled from thirty-two localities across Corsica and Sardinia. Results: We find much greater intraspecific genetic divergence than between sister species of other Mediterranean island Podarcis, i.e., between P. lilfordi and P. pityusensis. We detected three mtDNA clusters in Corsica (North, South-East and South-West) and either two or three in Sardinia (North vs. South) depending on the clustering method. Only one or two nDNA groups were identified within each main island (again, depending on the method). A Bayesian time- calibrated multispecies coalescent tree was obtained from mtDNA and provided statistical support for a Miocene origin of the species (13.87 Ma, 95% HPD: 18.30–10.77 Ma). The posterior mean divergence time for the Corsican and Sardinian lineages was 12.75 Ma ago (95% HPD: 16.94–9.04 Ma). Conclusion: The results support the evolutionary distinctiveness of Corsican and Sardinian populations and also indicate a lack of post-divergence migration despite periods of contact being possible. Further to this, species delimitation analyses of Corsican and Sardinian lineages provided statistical support for their recognition as distinct (sister) taxa. Our results provide new insights into the biogeography of the Mediterranean biodiversity hotspot, and contribute important findings relevant to the systematics and evolution of this speciose lizard genus.