Barbadillo, L.J. (1987) -  Descriptions Podarcis pityusensis and Podarcis lilfordi -  In: La Guia de INCAFO de los Anfibios y Reptiles de la Peninsula Iberica, Islas Baleares y Canarias: 245-247, 386-387, 455-465.  

Barbadillo, L.J. & Lacomba, J.I. & Pérez-Mellado, V. & Sancho, V. & López-Jurado, L.F. (1999) -  Lagartija de las Pitiusas Podarcis pityusensis (Boscá, 1883).  -  In: Barbadillo, L.J., Lacomba, J.I., Pérez-Mellado, V., Sancho, V. & L.F. López-Jurado (eds.): Anfibios y Reptiles de la Península Ibérica, Baleares y Canarias. pp. 301-303.   

Berg, M.P. van den (2011) -  Estimating recent divergence time in populations of Podarcis lilfordi (GÜNTHER, 1874) and Podarcis pityusensis (BOSCÁ, 1883). -  www.lacerta.de    

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In this article an introduction is given on the geological history leading to the separation of Podarcis lilfordi (GÜNTHER, 1874) and Podarcis pityusensis (BOSCÁ, 1883) as separate species, as well as a Holocene sea level rise model which combined with bathymetric data leads to an estimation of recent divergence time in populations of the Balearic lizards.

Berg, M.P. van den (2015) -  Estimating recent divergence time in populations of Podarcis lilfordi (GÜNTHER, 1874) and Podarcis pityusensis (BOSCÁ, 1883) using NAVIONICS SonarCharts™. -  L@CERTIDAE, 2015 [2]: 6-22.    

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New data on estimated divergence times of the populations of lacertid lizards in the Balearic Islands are provided in this second update of the October 2011 article: Estimating recent divergence time in populations of Podarcis lilfordi (GÜNTHER, 1874) and Podarcis pityusensis (BOSCÁ, 1883) (VAN DEN BERG 2011), which received its first update May 2012. In most cases better estimations of divergence times were available by using the NAVIONICS SonarCharts™webapp.

Berg, M.P. van den & Zawadzki, M. (2010) -  Small, smaller, smallest ... - About the smallest islet populations of Podarcis pityusensis and Podarcis lilfordi, with first record of two new very small islet populations. -  www.lacerta.de    

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In this article we make some notes on the smallest islet populations of Podarcis pityusensis (BOSCÁ, 1883) and Podarcis lilfordi (GÜNTHER, 1874), with a first description of two populations on Escull de Figueretes (Ibiza) and Carbó Petit (Menorca).

Cirer, A.M. (1982) -  L‘herpetofauna de les Illes Pitiüses (II). Les sargantanes. -  Eivissa, 13 Eivissa ciutat. Eivissa i Formentera bisbat: 7-9.  

Cirer, A.M. (1987) -  Aplicatión de técnicas estadísticas multivariantes a las poblaciones del lacértido Podarcis pityusensis (Boscá, 1883). -  Revista Española de Herpetología, 2: 145-163.    

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In this paper are presented the results obtained with 45 populations of Podarcis pityusensis. Several multivariant technics are performed: discriminant analysis, cluster analysis and canonic analysis of populations. These populations present gradual change in all their biometric characteristics, and also a great interpopulation variability, that invalidate th statistical methods to discriminate between all of them. In different analysis very related population groups are found, that suggests they are constitute the same subspecies, in the actual taxonomic sense. These groups always inhabits islands with the same geological age, it is therefore necessary to complete the study with othr biological reflections, all of which are getting ready.

Cirer, A.M. (2024) -  Estimació de la densitat poblacional de Podarcis pityusensis als illots Pitiüsos al llarg del temps. -  Butlletí de la Societat Catalana d’Herpetologia, Barcelona, 31: 66-114.    

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Hemorrhois hippocrepis arrives at the beginning of the twenty-first century to the Pityusic Islands, like an invasive species and it has placed the endemic lizard Podarcis pityusensis at serious risk of extinction in the two major islands. It makes urgent to have an estimated population density of lizards in the various islets of the Pityusas. It has been used personal field notes with the indications that allow us to estimate the population density in the different visits realized to the islets from 1979 to 2024.

Cirer, A.M. & Berg, M.P. van den (2025) -  Estimation of lizard density in Podarcis pityusensis island populations over time, with special attention to the correct naming of the islets. -  L@CERTIDAE (Eidechsen Online), 2025 [1]: 1-187.    

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In this study we compile data regarding lizard densities of the island populations of the Ibiza wall lizard, Podarcis pityusensis, which can serve as a baseline for future research and control of the invasive snakes, and in particular the horseshoe whip snake Hemorrhois hippocrepis, in the Pityusic Islands. Special attention has been given to the correct official spelling of 96 locations of which 89 are real rocks, islets and islands. For each island a short description, toponymy, faunal and floral aspects and some herpetological history is given, and a lizard density value was assigned. The results are very disturbing, with two confirmed- and three most likely extinct island populations of Podarcis pityusensis, and we call for coordinated action.

Colom, G. (1964) -  El Medio y la vida en las Baleares. La formación de las islas y el origen de su flora y de su fauna. -  El Medio y la vida en las Baleares. Palma de Mallorca: 218-233.  

Mayol Serra, J. (1985) -  La sargantana de les Pitiüses, Podarcis pityusensis. -  In: Reptils i amfibis de les Balears. Editorial Moll, Palma de Mallorca: 129-145.   

Salvador, A. (1985) -  Lagartija Balear (Podarcis lilfordi) - Lagartija de las Pitiusas (podarcis pityusensis). -  In: Guía de Campo de los anfibios y reptiles de la Península Ibérica, Islas Baleares y Canarias: 143-148.  

Salvador, A. (2006) -  Lagartija de las Pitiusas – Podarcis pityusensis (Boscá, 1883). -  En: Enciclopedia Virtual de los Vertebrados Españoles. Carrascal, L. M., Salvador, A. (Eds.). Museo Nacional de Ciencias Naturales, Madrid.  

Salvador, A. & Pleguezuelos, J.M. (2002) -  Lagartija de las Pitiusas (Podarcis pityusensis). -  Reptiles españoles. Identificación, historia natural y distribución: 283-290.  

Viada Sauleda, C. (2021) -  Llibre Vermell dels Vertebrats de les Illes Balears. -  Conselleria de Medi Ambient i Territori. Govern de les Illes Balears. Quarta edició: març, 2021.