Mariana Morando

Mariana Morando
Instituto Patagónico para el Estudio de los Ecosistemas Continentales (IPEEC-CONICET) · Grupo de Herpetología Patagónico (GHP)

Dr. Ciencias Biológicas

About

212
Publications
62,139
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
5,065
Citations
Additional affiliations
November 2017 - present
National Scientific and Technical Research Council
Position
  • Principal Investigator
June 2014 - October 2017
Centro Nacional Patagonico
Position
  • Researcher
January 2006 - December 2012
Centro Nacional Patagonico
Position
  • Researcher

Publications

Publications (212)
Article
Full-text available
Evolutionary correlations between phenotypic and environmental traits characterize adaptive radiations. However, the lizard genus Liolaemus, one of the most ecologically diverse terrestrial vertebrate radiations on earth, has so far shown limited or mixed evidence of adaptive diversification in phenotype. Restricted use of comprehensive environment...
Article
Editor: Antonieta Labra, Chile. Resumen.-Liolaemus es una de las mayores radiaciones de lagartos con más de 289 especies descritas. Dentro del grupo L. fitzingerii, encontramos la especie L. xanthoviridis, la cual se distribuye en un área alrededor de la meseta de Montemayor en la costa atlántica oriental de la provincia de Chubut, Argentina. Sin e...
Article
Motivation: Transposable elements (TEs) are ubiquitous in genomes and many remain active. TEs comprise an important fraction of the transcriptomes with potential effects on the host genome, either by generating deleterious mutations or promoting evolutionary novelties. However, their functional study is limited by the difficulty in their identific...
Article
Liolaemus duellmani is a microendemic lizard described from southern Mendoza, Argentina, representing the southernmost distribution of the Liolaemus montanus species group. The original description was based on a small batch of preserved material and a juvenile collected alive. Along the years, this poorly known species was rarely collected or obse...
Article
Full-text available
Understanding the factors that cause heterogeneity among gene trees can increase the accuracy of species trees. Discordant signals across the genome are commonly produced by incomplete lineage sorting (ILS) and introgression, which in turn can result in reticulate evolution. Species tree inference using the multispecies coalescent is designed to de...
Article
Full-text available
Hybridization is an evolutionary process that can generate diverse outcomes, such as reinforcing species boundaries, generating new species, or facilitating the introgression of locally-adapted alleles into new genomic backgrounds. Liolaemus is a highly diverse clade of South American lizards with ~260 species and as many as ten new species are des...
Article
Full-text available
Three Liolaemus species are cited as new from La Rioja province. Two were found in a poorly explored area in the top of an isolated mountain system in the middle of the Dry Chaco and other from the eastern edge of a salt-pan basin in the southwest limit of the Chaco biogeographic formation. We also present an updated checklist of La Rioja lizards.
Article
Full-text available
A new species of the Liolaemus capillitas clade is described. Liolaemus galactostictos sp. nov. differs from other members of its group by a combination of morphological and molecular traits, in particular its black dorsal coloration pattern not found in any other Liolaemus species. Liolaemus galactostictos sp. nov. is only known from its type loca...
Article
Recent conceptual and methodological advances have enabled an increasing number of studies to address the problem of species delimitation in a comprehensive manner. This is of particular interest in cases of species whose divergence times are recent and/or effective population sizes are large, where the conclusions obtained from a single source of...
Article
In Argentina, the Monte ecoregion extends for more than 2,000 km from NW Argentina to boreal Patagonia, and includes many salt-pans and barren flatlands colonized by the monophyletic Liolaemus anomalus group that includes seven species. Some of their external morphological characteristics and behaviors are very unusual for the genus, and this has l...
Chapter
During the last two decades, regional exploration coupled with dense geographic sampling, new molecular techniques, and phylogeographic approaches have led to the discovery of unexpected hidden diversity. These data have expanded inferences about evolutionary and demographic processes to explain patterns of geographic genetic distribution, phylogen...
Chapter
Patagonia has a great diversity of lizards, including 6 families, 11 genera, and 163 species. The majority of this diversity with documented geographical records corresponds to the Liolaemidae family (Phymaturus and Liolaemus). Latitudinally, lizard richness is higher between 37° and 39° S, decreasing gradually until latitude 54° S; longitudinally,...
Chapter
The diversity of the Patagonian lizard fauna is a combination of low diversity at higher levels, e.g., families, some of them almost marginal to the region, coupled with very high species diversity concentrated in two genera Liolaemus and Phymaturus, and a high number of endemics. The number of described species almost tripled since Cei’s last and...
Article
The repeatability of findings is the key factor behind scientific reliability, and the failure to reproduce scientific findings has been termed the ‘replication crisis’. Geometric morphometrics is an established tool in evolutionary biology. However, different operators (and/or different methods) could act as large sources of variation in the data...
Preprint
Full-text available
Recent conceptual and methodological advances have enabled an increasing number of studies to address the problem of species delimitation in a comprehensive manner. This is of particular interest in cases of species whose divergence times are recent, where the conclusions obtained from a single source of evidence can lead to the incorrect delimitat...
Article
The local spatial distribution of individual animals is often described in terms of home range (HR), whereas territory traditionally refers to an area defended for exclusive use. The size of the HR is considered an important indicator of the behavioral characteristics of an animal, and it can be influenced by factors such as sex, body size, populat...
Article
Aim Clutch size is a key life‐history trait. In lizards, it ranges over two orders of magnitude. The global drivers of spatial and phylogenetic variation in clutch have been extensively studied in birds, but such tests in other organisms are lacking. To test the generality of latitudinal gradients in clutch size, and their putative drivers, we pres...
Chapter
Lizards are a major component of temperate-to-tropical terrestrial vertebrate biotas, and have played a central role as model systems for evolutionary and ecological research. The most diverse lizard group of the southern half of South America is the clade Liolaemini (=family Liolaemidae), which includes three genera characterized by large differen...
Article
Phylogenomic approaches now generate hundreds of loci representative of the whole genome that can be used for phylogenetic analyses. The South American lizard genus Liolaemus is the most species-rich vertebrate radiation from temperate zones (more than 265 described species), yet most higher-level phylogenetic relationships within Liolaemus remain...
Article
Full-text available
Macroevolutionary and biogeographical studies commonly apply multiple models to test state-dependent diversification. These models track the association between states of interest along a phylogeny, although many of them do not consider whether different clades might be evolving under different evolutionary drivers. Yet, they are still commonly app...
Book
This book presents a critical and integrated review of lizards from Patagonia. It summarizes the region’s geomorphological history and climatic aspects, which makes it possible to interpret, from an evolutionary perspective, the latest findings on the various natural history aspects of its lizard fauna. As such, the book will appeal to all research...
Preprint
Full-text available
Replicability of findings is the key factor of scientific reliability. However, literature on this topic is scarce and apparently taboo for large scientific areas. Some authors named the failure to reproduce scientific findings ‘replication crisis’. Geometric morphometrics, a vastly used technique, is especially silent on replication crisis concern...
Preprint
Full-text available
Macroevolutionary studies commonly apply multiple models to test state-dependent diversification. These models track the association between states of interest along a phylogeny, but they do not consider whether independent shifts in character states are associated with shifts in diversification rates. This potentially problematic issue has receive...
Poster
Los gradientes climáticos ejercen selección sobre el rendimiento ecológico y fisiológico de los organismos, lo que a menudo promueve la variación morfológica. Esto se evidencia particularmente en reptiles debido a su dependencia de variables como la temperatura y la precipitación. En Patagonia se encuentran dos clados hermanos de lagartijas, Liolae...
Data
Table S1. Detail of the specimens used for this study. LJAMM: Herpetological collection of the Centro Nacional Patagónico (CENPAT-CONICET), Puerto Madryn, Chubut, Argentina. ZVC-R: Vertebrate Zoology collection of the Faculty of Sciences, Montevideo, Uruguay. UFRGST: collection of the Herpetology Laboratory of the Federal University of Rio Grande d...
Data
Table S2. Posterior probabilities of the number of species and each candidate species estimated by BPP 3.4 for all the replicates run. Each combination of starting tree and priors for Θ and τ (a-d) where run under four different seeds which are indicated with ’. Top1: ((((A, B), H), (C, D)), (E, (F, G))); Top2: ((((A, H), B), (C, D)), (E, (F, G)));...
Data
Table S3. Lineage assignment for each of the 113 individual of Liolaemus wiegmannii with ddRADseq data, according to DAPC and RAxML. A: South-Central Argentina; B: Uruguay; D: Catamarca; E: Tucumán & Salta I; F: Jujuy and G: Salta II. All the individuals that belong to the lineage Mendoza C from BPP are recovered as part of lineage A (using ddRADse...
Data
Figure S2. K values explored for the Liolaemus wiegmannii complex based on 3912 SNPs. Blue circle represents the best K under BIC (A) and AIC (B) criteria.
Data
Figure S1. Bayesian cytochrome b genealogy of the Liolaemus wiegmannii complex considering haplotypes of L. gardeli and two unique haplotypes of Argentina: LJAMM 13266 (25 km N Villa Mercedes, General Pedernera Department, San Luis Province) and LJAMM 3132 (Copacabana, Sierras de Córdoba, Córdoba Province). Correspondence between colors and lineage...
Article
Full-text available
In this contribution, the aspects of reptile and amphibian speciation that emerged from research performed over the past decade are reviewed. First, this study assesses how patterns and processes of speciation depend on knowing the taxonomy of the group in question, and discuss how integrative taxonomy has contributed to speciation research in thes...
Article
Full-text available
The consequences of past or future climate change have been studied in many physical and biological systems, and their effects could change the ecology and spatial distribution of suitable areas for a wide variety of organisms. We analyzed the environmental and geographic space of the current suitable area projecting these conditions into Mid-Holoc...
Article
Full-text available
Convergence is a pervasive phenomenon in the Tree of Life, and evolution of similar phenotypes sharing the same environmental conditions is expected in phylogeneti-cally closely related species. In contrast, contingent factors are probably more influential in shaping phenotypic diversity for distantly related taxa. Here, we test putative convergent...
Preprint
Full-text available
Speciation processes have long been inferred from phylogenetic, phylogeographic, and biogeographic pattern-driven perspectives. Now much current speciation research is attempting to more directly describe the underlying processes and mechanisms of divergence leading to speciation. Ideally, researchers should integrate both process-and pattern-based...
Preprint
Full-text available
Speciation processes have long been inferred from phylogenetic, phylogeographic, and biogeographic pattern-driven perspectives. Now much current speciation research is attempting to more directly describe the underlying processes and mechanisms of divergence leading to speciation. Ideally, researchers should integrate both process- and pattern-base...
Article
Full-text available
This note presents a new department record and the southernmost records for Liolaemus grosseorum in Argentina in Neuquén province. In addition, two new records are presented for the species in La Pampa province the northeastmost records for the species in Argentina.
Article
During the speciation process sibling lineages accumulate differences in time (e.g. genetic, morphological, and/or ecological). Phenotypic traits such as size or shape, however, could experience rapid changes or show stasis depending on their role in survival and reproduction. The clade Phymaturus patagonicus includes 26 species characterized by a...
Poster
Patagonia is a sparsely populated region located at the southern end of South America, shared by Argentina and Chile. The region comprises the southern section of the Andes Mountains as well as the deserts, pampas and grasslands east of this southern portion of the Andes. Almost all Patagonia is located in the eastern side of the Andes, politically...
Poster
Much of southern South America consists of diverse montane, arid, and semiarid regions characterized by high squamate endemism as a result of a complex interplay between lineage histories, Tertiary geological changes, and Pleistocene climatic shifts. Here we provide an updated review of lizard biodiversity in the northern ecoregion of the Monte Des...
Article
Full-text available
Hybridization is likely to occur more often between closely related taxa that have had insufficient time to diverge to the point of reproductive incompatibility; hybridization between deeply divergent lineages is rare. In squamate reptiles, hybridization has been proposed as a possible explanation for the extensive paraphyly observed in mitochondri...
Article
Homonota is a gecko distributed in central and southern South America with 12 species allocated in three groups. In this work, we performed molecular and morphological analyses of samples of Homonota from the central region of northern Paraguay, comparing the data with those of related species of the group: H.horrida and H.septentrionalis . We foun...
Preprint
Full-text available
Background. The consequences of past or future climate change have been studied in many physical and biological systems, and their effects could change the ecology and spatial distribution of suitable areas for a wide variety of organisms. Methods. We analyzed the environmental and geographic space of the current suitable area and we projected thes...
Preprint
Full-text available
Background. The consequences of past or future climate change have been studied in many physical and biological systems, and their effects could change the ecology and spatial distribution of suitable areas for a wide variety of organisms. Methods. We analyzed the environmental and geographic space of the current suitable area and we projected thes...
Article
Full-text available
Two new species of the Liolaemus donosobarrosi clade are described. Liolaemus tirantii sp. nov. and Liolaemus calliston sp. nov. differ from other members of their clade by a combination of coloration characters, morphometric and molecular traits. Liolaemus tirantii sp. nov. is known from three localities separated only a few kilometers from each o...
Article
We present different approaches to a multi-locus phylogeny for the Liolaemus elongatus-kriegi group, including almost all species and recognized lineages. We sequenced two mitochondrial and five nuclear gene regions for 123 individuals from 35 taxa, and compared relationships resolved from concatenated and species tree methods. The L. elongatus-kri...
Article
Full-text available
Microsatellites are useful markers to address questions of recent gene flow, given that they are relatively neutral to natural selection and show high levels of variability. To date, only one study has used these markers to answer ecological questions in the speciesrich lizard genus Liolaemus. Here, we use microsatellite loci to estimate population...