Milne-Edwards, M.H. (1829) - Recherches zoologiques pour servir à l`histoire des lézards, extraites d`une monographie de ce genre. - Annales des sciences naturelles, Paris, 16: 50-89.  Richter, K. (1979) - Lacerta dugesii MILNE-EDWARDS, 1829 und Lacerta perspicillata DUMERIL et BIBRON, 1839 gehören zur Gattung Podarcis WAGLER, Subgenus Teira GRAY, 1838. - Zoologische Abhandlungen Staatliches Museum für Tierkunde in Dresden, 36 (1): 1-9. Bischoff, W. & Osenegg, K. & Mayer, W. (1989) - Untersuchungen zur subspezifischen Gliederung der Madeira-Mauereidechse, Podarcis dugesii (MILNE-EDWARDS, 1829). - Salamandra, Bonn, 25 (3/4): 237-259.   × In this study 175 specimens of Podarcis dugesii from the islands Madeira, Deserta Grande, Bugio, Porto Santo, Selvagem Grande and Selvagem Pequena were examined. Morphological data from lizards of these six islands were subjected to a Variance- and Discriminant-analysis and compared to results from an Enzyme-Electrophoresis.
Podarcis dugesii mauli is placed as a synonym of the nominate subspecies. In contrast, two new subspecies are described: Podarcis dugesii jogeri ssp.n. for the population from Porto Santo and Podarcis dugesii selvagensis ssp.n. from the Selvagens islands. Bischoff, W. (1998) - Die Reptilien der Kanarischen Inseln, der Selvagens-Inseln und des Madeira Archipels - Bischoff, W. (Hrsg.): Handbuch der Reptilien und Amphibien Europas. Band 6. - AULA-Verlag, Wiesbaden. × Das kleine »Galapagos vor der europäischen Haustür« ist Gegenstand dieses in sich geschlossenen Bandes. Er gibt erstmalig einen Überblick über die Herpetofauna dieser Inselgruppen. Brehm, A. & Khadem, M. & Jesus, J. & Andrade, P. & Vicente, L. (2001) - Lack of congruence between morphometric evolution and genetic differentiation suggests a recen t dispersal and local habitat adaptation of the Madeiran lizard Lacerta dugesii. - Genetics Selection Evolution, 33 (6): 671-685. × Genetic differentiation among nine populations of the endemic lizard Lacerta dugesii Milne-Edwards 1829 (Lacertidae) from four groups of islands constituting the Archipelago of Madeira, was investigated by protein electrophoresis at 23 enzyme loci. Among twenty polymorphic loci, the total genetic diversity was due primarily to intra-population variation. The allele and genotypic frequencies among populations showed some heterogeneity, allowing the species to present a structuring pattern compatible with their geographical clustering. Some evidence suggests that selection actring on some loci in different ecological conditions may be responsible for the clustering of the populations studied. There was no apparent isolation effect expected under an “island” model of population divergence, and no correlation was found between genetic and geographic distances among populations. Morphological variation of the proposed three L. dugesii subspecies is not congruent with the allozyme analysis. This most probably suggest a rapid colonization of the isloands followed by a strong effect of selection operating over the morphological characters used to define the subspecies. Brehm, A. & Jesus, J. & Spinola, H. & Alves,C. & Vicente, L. & Harris, D.J. (2003) - Phylogeography of the Madeiran endemic lizard Lacerta dugesii inferred from mtDNA sequences. - Molecular Phylogenetics and Evolution, 26: 222-230. × Partial sequences from two mitochondrial DNA genes, cytochrome b and 12S rRNA, were used to assess the phylogenetic re-
lationships of populations of Lacerta dugesii from the volcanic Atlantic islands of Madeira, the Desertas, Porto Santo, and the
Selvagens. All four-island groups are genetically distinguishable and populations within each contain similar degrees of genetic
diversity. Molecular clock estimates suggest that the islands were colonized much later after their emergence compared to other
Atlantic islands, possibly due to their greater geographical isolation. Mismatch analysis of all populations is consistent with ex-
ponential growth, as expected after colonization of empty niches. The Selvagens contain genetic substructuring between the islets. Brehm, A. & Harris, A.D.J. & Alves, C.D. & Jesus, J.D. & Thomarat, F.D. & Vicente, L.D. (2003) - Structure and evolution of the mitochondrial DNA complete control region in the lizard Lacerta dugesii (Lacertidae, Sauria). - Journal of Molecular Evolution, 56 (1): 46-53. × We sequenced the complete control region
(CR) and adjacent tRNAs, partial 12S rRNA, and
cytochrome b (over 3100 bp) from eight individuals
of Madeiran wall lizards, Lacerta dugesii, from four
distinct island populations. The tRNAs exhibit a high
degree of intraspecific polymorphisms compared to
other vertebrates. All CR sequences include a minisatellite
that varies in length between populations but
is apparently fixed within them. Variation in minisatellite
length appears between populations separated
by apparently very short evolutionary time
spans. Many motifs identified in the CR of other
vertebrates are not highly conserved, although conserved
blocks are identifiable between the few published
reptile CR sequences. Overall there are
extensive differences in the internal organization of
the reptile CR compared to the more widely studied
mammals and birds. Variability in the CR is lower
than in cytochrome b, but higher than in 12S rRNA.
Phylogenetic analysis of these sequences produces a
well-resolved estimate of relationships between populations. Jesus, J. & Brehm, A. & Harris, D.J. (2005) - Is C-mos phylogenetically informative at lower taxonomic levels in reptiles? An assessment of variation within Lacerta (Teira) dugesii Milne-Edwards, 1829 (Squamata: Sauria: Lacertidae). - Herpetozoa, Wien, 18 (1/2): 55-59.
|
