A5089168410- Amphibian and Reptile Biology
- Species Distribution and Climate Change
- Bat Biology and Ecology Studies
- Animal Behavior and Reproduction
- Wildlife Ecology and Conservation
- Scarabaeidae Beetle Taxonomy and Biogeography
- Rabies epidemiology and control
- Animal and Plant Science Education
- Lepidoptera: Biology and Taxonomy
- Mosquito-borne diseases and control
- Venomous Animal Envenomation and Studies
- Primate Behavior and Ecology
- Vector-borne infectious diseases
- Turtle Biology and Conservation
- Plant and animal studies
- Genetic diversity and population structure
- Fish biology, ecology, and behavior
- Physiological and biochemical adaptations
- Ecology and Vegetation Dynamics Studies
- Mollusks and Parasites Studies
- Insect and Arachnid Ecology and Behavior
- Invertebrate Taxonomy and Ecology
- Mediterranean and Iberian flora and fauna
- Insect Utilization and Effects
- Public Health and Environmental Issues
Fundación Miguel Lillo
2011-2024
National University of Tucumán
2014-2024
Unidad Ejecutora Lillo
2017-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2013-2024
Centro Científico Tecnológico - Tucumán
2010-2013
National University of Salta
2008
Vertebrate taxa with entirely unisexual populations are composed of females that reproduce without fertilization and generally hybrid origin. At least 23 vertebrate families have lineages. Within squamate reptiles, >40 uniparental species been described from five major lineages: acrodont iguanians, Gekkota, Serpentes, Scincomorpha, Varanidae. Pleurodont iguanians include >1100 species, all which gonochoristic reproduction. Here we report the discovery a new lizard liolaemid genus Liolaemus,...
The genus Liolaemus belongs to the family Liolaemidae, together with genera Phvmaturus and Ctenoblepharys, for its diversity, it can only be compared Anolis among iguanians because at present, about 200 species are recognized in literature almost every year new taxa described. Also, this is diverse widely distributed from central Peru Tierra del Fuego southern end of continent lizards live a variety habitats Argentina, Bolivia, Chile, Peru, Paraguay, Uruguay coasts southeastern Brazil. Due...
The question whether taxonomic descriptions naming new animal species without type specimen(s) deposited in collections should be accepted for publication by scientific journals and allowed the Code has already been discussed Zootaxa (Dubois & Nemésio 2007; Donegan 2008, 2009; 2009a-b; Dubois Gentile Snell Minelli Cianferoni Bartolozzi 2016; Amorim et al. 2016). This was again raised a letter supported 35 signatories published journal Nature (Pape 2016) on 15 September 2016. On 25 2016,...
Although differential selective pressures on males and females of the same species may result in sex-specific evolutionary trajectories, comparative studies adaptive radiations have largely neglected within-species variation. In this study, we explore potential effects natural selection, sexual or a combination both, bite performance 19 Liolaemus lizards. More specifically, study evolution performance, compare relationships between variation head morphology, ecological dimorphism females....
The integration or coadaptation of morphological, physiological, and behavioral traits is represented by whole-organism performance such as locomotion bite force. Additionally, maximum sprint speed a good indicator capacity variation in sprinting ability can affect survival. We studied thermal biology, morphology, locomotor clade Liolaemus lizards that occurs the Patagonian steppe plateaus, type habitat characterized its harsh cold climate. lineomaculatus section display complex mixture...
Luego de la elaboracion primera lista roja herpetofauna Republica Argentina,realizada en el ano 2000, son numerosos los cambios y estudios efectuados diferentesgrupos saurios Argentina. Si bien hay avances realizados todas las ramas labiologia relacionadas a lagartijas, progresos taxonomicos ecologicos mas evidentes.Debido estos progresos, implementacion sustanciales modificaciones conrespecto metodologia que se utilizara un grupo veintisiete especialistasde diferentes instituciones...
The Liolaemidae family, it is formed by the genera Ctenoblepharys, Liolaemus and Phymaturus. Is most diverse family of south Southamerica, has experienced an impressive growth in last 30 years. Many studies related to different disciplines within Biology have been carrying out using species which are members Liolaemidae. Nevertheless, taxonomic phylogenetic results evident. genus Iguania, its number taxa grows up considerably year after year. Phymaturus shows intermediate diversity inside...
With 36 species and at least nine potentially independent lineages (not formally described yet) occurring mostly in theAndes adjacent Patagonia Puna plateau areas, Phymaturus lizards represent one of the most endemic vertebrategroups arid southwestern region South America. Phylogenetic relationships among areinferred using mainly a morphological data set 206 characters. Also available sequences mitochondrial DNA for sev-en terminals were added total evidence analysis. Most information is...
Abstract Body size ( BS ) varies in response to several selective pressures. In ectotherms, thermal inertia may affect thermoregulation, since larger s increase heat conservation as B ergmann originally stipulated for endotherms. However, ergmann's rule is controversial ectotherms. The balance hypothesis states that ectotherms' thermoregulatory capability relevant trends . cold climates, BSs would be advantageous small thermoregulating by increasing conservation. implies a delaying effect on...
We describe three new species of Liolaemus from Southern Argentina.These belong to the monophyletic elongatus group, included within thesubgenus Liolaemus sensu stricto. Two inhabits in southern MendozaProvince and other one central west Rio Negro Province. The speciesexhibit character states that distinguish they all members L. group.Those include color pattern, number scales dorsum, shape temporalscales, size (among others). Although with those we clarify taxonomicstatus several...
We describe two new species of Liolaemus belonging to the montanus series. The are closely related L. dorbignyi, but disjunctly distributed with respect this taxon. Both exhibit unique color patterns, which, along differences in squamation, differentiate taxa from other saxicolous and inhabit rocky hills Puna regions northwestern Argentina. One occurs Cerro de la Virgen, Nevados Cachi Palermo Salta Province. is known only its type locality El Pichao Tucumán
After the study of a diverse collection Phymaturus from three Argentinian institutions and additional samples collected in last two years we discovered several populations uncertain taxonomic status. Based on 93 morphological characters squamation, color pattern, gular nuchal folds, precloacal pores, morphometric data, conclude that at least four those are independent lineages which require formal description. Characters related to sexual dimorphism dichromatism as well ontogenetic change...
The genus Liolaemus is a group of lizards with more than 230 recognized species, which have been grouped in differentclades and subgroups. One the monophyletic groups one boulengeri or “the patch group”; this cladeitself integrated by several groups: anomalus, wiegmanii, Liolaemusdarwinii melanops. latter constituted almost exclusively Patagonian lizards, it ourfocal group. In present work we describe three new species belonging to melanops thenew taxon described, tromen sp. nov., related...
Body temperature of ectotherms depends on the environmental temperatures and behavioral adjustments, but morphology may also affect it. For example, in colder environments animals tend to be larger show higher thermal inertia, as proposed by Bergmann's rule heat balance hypothesis (HBH). Additionally, dark coloration increases solar radiation absorption should accelerate gain (Thermal melanism hypothesis, TMH). We tested rule, HBH TMH within Liolaemus goetschi lizards clade that variability...
Liolaemus dorbignyi is re-described, and its type locality restricted to the Sierra de Fiambalá, Catamarca Province, Argentina. Also, scrocchii sp. nov., a new species of belonging L. montanus series, previously confused with , described. This inhabits phytogeographic region Puna in Argentina at 3500 m. distributed Jujuy northwestern Salta provinces. Diagnostic characters include color pattern, (composed transverse paravertebral spots, that are band shaped never reach lateral region, contact...
We provide evidence for a new species of Liolaemus, which can be included in the L. dorbignyi group within montanus series. Liolaemus vulcanus sp. nov. was previously confused with dorbignyi, but it exhibits states character allow us to differentiate two taxa. The main differences are color pattern and dorsal scales. is saxicolous inhabits rocky hills Puna regions Northwestern Argentina. It distributed localities Antofagasta de la Sierra department Catamarca Province, Argentina .
geográfica y viviparismo en especies de Liolaemus (Reptilia; Squamata): cuando las hipótesis se ponen a prueba
The study of the species’ climatic niche is an excellent proxy their vulnerability to global climate change. It well known that species with greater marginality or a smaller breadth are most vulnerable However, these measures have never been contextualized regarding shortfalls in biogeography: Linnean and Darwinian shortfalls. Here based on Liolaemidae, one diverse families tetrapods, we showed as phylogenetic taxonomic knowledge accumulated across time filled up, split complexes (previously...
Abstract Evolutionary transitions in life‐history strategies, such as the shift from egg‐laying to live birth (viviparity) are of great interest evolutionary biologists. In squamate reptiles, several hypotheses have been proposed explain viviparity including cold climate hypothesis, maternal manipulation hypoxia and others. We used two approaches: first we studied 45 species Liolaemus , a genus where nearly 50% viviparous, using diverse ecophysiological dataset examine hypotheses. collected...
We provide the description for a new species from Catamarca province, Argentina that belongs to Liolaemus darwinii group. The was previously considered as population of L. ornatus, but it can be distinguished mainly because differences on coloration pattern, and its geographic distribution, which is disjunct populations ornatus. characterized having males with dorsal background light brown ferrous red, head darker than rest body, paravertebral markings rounded never in contact, dorsolateral...
We describe two new species of lizards the genus Liolaemus belonging to chiliensis group, one found in southwestern Catamarca, and other central western Argentina, Mendoza, San Juan Catamarca provinces. The from has morphological characteristics that may relate it capillitas a northern clade elongatus whereas characters southern group. Both exhibit diagnoistic character states their maximum snout-vent length, squamation, dorsal ventral colors, which differentiate them
Abstract The South American lizard genus Liolaemus comprises > 260 species, of which 60 are recognized as members the montanus group, distributed throughout Andes in central Peru, Bolivia, Chile and Argentina. Despite its great morphological diversity complex taxonomic history, a robust phylogenetic estimate is still lacking for this group. Here, we study molecular L. group present most complete quantitative hypothesis to date. Our phylogeny includes 103 terminal taxa, 91 (58 assigned...