A new species of the Liolaemus alticolor-bibronii group (Iguania: Liolaemidae) from East-central Argentina

Vega, Laura; Quinteros, Andrés Sebastián; Stellatelli, Oscar Aníbal; Bellagamba, Patricio J.; Block, Carolina; Madrid, Enrique

doi:10.11646/zootaxa.4379.4.6

Cited by 851 publications

(5 citation statements)

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“…Many new species of Liolaemus have been described in the last ten years due to the resolution of species complexes (e.g., Breitman et al, 2011b, c;Martinez et al, 2011;Avila et al, 2017), or the discovery of new populations (e.g. Avila et al, 2009Avila et al, , 2012Avila et al, , 2015Troncoso-Palacios et al, 2016;Verrastro et al, 2017;Vega et al, 2018). As the result of a complex evolutionary history,…”

Section: Introductionmentioning

confidence: 99%

Coalescent-based species delimitation in the sand lizards of the Liolaemus wiegmannii complex (Squamata: Liolaemidae)

Villamil¹,

Ávila

Morando

et al. 2019

Molecular Phylogenetics and Evolution

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Coalescent-based algorithms coupled with the access to genome-wide data have become powerful tools for assessing questions on recent or rapid diversification, as well as delineating species boundaries in the absence of reciprocal monophyly. In southern South America, the diversification of Liolaemus lizards during the Pleistocene is well documented and has been attributed to the climatic changes that characterized this recent period of time. Past climatic changes had harsh effects at extreme latitudes, including Patagonia, but habitat changes at intermediate latitudes of South America have also been recorded, including expansion of sand fields over northern Patagonia and Pampas). In this work, we apply a coalescent-based approach to study the diversification of the Liolaemus wiegmannii species complex, a morphologically conservative clade that inhabits sandy soils across northwest and south-central Argentina, and the south shores of Uruguay. Using four standard sequence markers (mitochondrial DNA and three nuclear loci) along with ddRADseq data we inferred species limits and a time-calibrated species tree for the L. wiegmannii complex in order to evaluate the influence of Quaternary sand expansion/retraction cycles on diversification. We also evaluated the evolutionary independence of the recently described L. gardeli and inferred its phylogenetic position relative to L. wiegmannii. We find strong evidence for six allopatric candidate species within L. wiegmannii, which diversified during the Pleistocene. The Great Patagonian Glaciation (~1 million years before present) likely split the species complex into two main groups: one composed of lineages associated with sub-Andean sedimentary formations, and the other mostly related to sand fields in the Pampas and northern Patagonia. We hypothesize that early speciation within L. wiegmannii was influenced by the expansion of sand dunes throughout central Argentina and Pampas. Finally, L. gardeli is supported as a distinct lineage nested within the L. wiegmannii complex.

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Section: Introductionmentioning

confidence: 99%

Coalescent-based species delimitation in the sand lizards of the Liolaemus wiegmannii complex (Squamata: Liolaemidae)

Villamil¹,

Ávila

Morando

et al. 2019

Molecular Phylogenetics and Evolution

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“…Abdala et al [22] noted that from 1998 to 2007 an average of five new species of Liolaemus were described annually, but from 2008 to date, 66 new species have been described for an average of 6.5 new Liolaemus per year. The principal evidence used in support of these taxa has been morphological [1, 6, 15, 16, 90, 91, 92, 93, 94], molecular [14, 66, 95, 96, 97, 98, 99], morphological and molecular [5, 19, 100, 101, 102], morphological, molecular, and cytogenetic [18], and phylogenetic [2, 103]. This taxonomic research demonstrates that Liolaemus have morphological characters that are informative for the delimitation of species and that many of these characters are likely to be adaptive, allowing these lizards to exploit a wide range of habitats and macroenvironments, as expressed by the high species richness of the genus [104].…”

Section: Discussionmentioning

confidence: 99%

Description and phylogeny of a new species of Liolaemus (Iguania: Liolaemidae) endemic to the south of the Plurinational State of Bolivia

et al. 2019

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The Liolaemus montanus group is a diverse group of lizards that ranges from central Peru to southwestern Mendoza, Argentina, including much of the Plurinational State of Bolivia (“Bolivia”) and Chile. The species of this group mainly inhabit high elevation areas with cold temperatures. In the last years, several species of this group have been described, mostly in Argentina and Chile. In Bolivia, there are at least thirteen valid species belonging to the L. montanus group. In this study, we describe a new species of the L. montanus group with a marked endemism in the Cordillera de Sama of the Tarija Department, Bolivia, and a combination of unique character states that allows its formal description as a new species. The phylogenetic relationships based on analysis of 159 morphological characters suggest that it belongs to the L. montanus group, and that it is closest to Liolaemus pulcherrimus, which is found allopatrically in a small area of the Jujuy Province, Argentina. The multivariate analyses of 66 morphological characters support the phylogenetic relationships. Statistical analyses of inter-species comparisons of morphological characters are not considered the only methods due to the non-independence of some characters states among species; thus, a phylogenetic analysis is recommended. The detailed revision of specimens of the L. montanus group held in the collections of Bolivia is filling major geographic gaps and improving our understanding of the phylogenetic and biogeographic relationships of this widely distributed group of South American lizards.

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“…From the first herpetological list to the most recent records (e.g., Ringuelet and Arámburu, 1957; Gallardo, 1977; Tiranti and Avila, 1997; Arzamendia and Giraudo, 2004; Giménez et al, 2008; Cabrera, 2017; Di Pietro et al, 2020a; Vera et al, 2021), a total of 52 species of reptiles have been reported in the Pampas grassland ecoregion (3 turtles, 3 amphisbaenids, 18 lizards, and 28 snakes), among which 7 are narrowly distributed: Contomastix celata Cabrera et al, 2019, Homonota williamsii Avila et al, 2012, Liolaemus absconditus Vega et al, 2018, Li. multimaculatus (Duméril and Bibron, 1837), Li.…”

Section: Methodsmentioning

confidence: 99%

Conservation Priority Areas for Narrow-Range Reptiles of the Pampas Grassland, East-Central Argentina

Di Pietro,

Berkunsky,

Vera

et al. 2023

South American Journal of Herpetology

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A new species of the Liolaemus alticolor-bibronii group (Iguania: Liolaemidae) from East-central Argentina

Cited by 851 publications

References 0 publications

Coalescent-based species delimitation in the sand lizards of the Liolaemus wiegmannii complex (Squamata: Liolaemidae)

Coalescent-based species delimitation in the sand lizards of the Liolaemus wiegmannii complex (Squamata: Liolaemidae)

Description and phylogeny of a new species of Liolaemus (Iguania: Liolaemidae) endemic to the south of the Plurinational State of Bolivia

Conservation Priority Areas for Narrow-Range Reptiles of the Pampas Grassland, East-Central Argentina

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