A5012736111- Amphibian and Reptile Biology
- Species Distribution and Climate Change
- Wildlife Ecology and Conservation
- Animal Behavior and Reproduction
- Fish Ecology and Management Studies
- Bat Biology and Ecology Studies
- Genetic diversity and population structure
- Animal and Plant Science Education
- Environmental and Biological Research in Conflict Zones
- Freshwater macroinvertebrate diversity and ecology
- Turtle Biology and Conservation
- Lepidoptera: Biology and Taxonomy
- Marine and environmental studies
- Ecology and Vegetation Dynamics Studies
- Animal Ecology and Behavior Studies
- Aquatic Invertebrate Ecology and Behavior
- Animal Vocal Communication and Behavior
- Plant and animal studies
- Botany and Plant Ecology Studies
- Environmental Toxicology and Ecotoxicology
- Morphological variations and asymmetry
- Forest Ecology and Biodiversity Studies
- Yersinia bacterium, plague, ectoparasites research
- Evolution and Genetic Dynamics
- Forest Insect Ecology and Management
Ovidius University
2015-2024
Association for Liberty and Equality of Gender
2017-2024
Weatherford College
2021
Universidad Nacional de Loja
2016-2018
Universidad de Zaragoza
2014
Consejo Superior de Investigaciones Científicas
2013
University of Bucharest
1997-2006
Universitatea Ecologica din Bucuresti
2006
Abstract The newts Triturus vulgaris and montandoni are sister species that exhibit contrasting levels of intraspecific morphological variation. has a broad Eurasiatic distribution encompassing both formerly glaciated unglaciated areas shows substantial differentiation in the southern part its range, while T. , confined to Carpathians, is morphologically uniform. We analysed sequence variation two mtDNA fragments total length c . 1850 bp 285 individuals collected from 103 localities....
Abstract Patterns of interspecific introgression may vary geographically, and the distribution introgressed variants can yield insight into historical dynamics genetic interactions between hybridizing species. Urodele amphibians, often characterized by limited mobility, deep intraspecific structuring vulnerability to climatic changes, constitute suitable models for such inferences. Here, we combine an extensive survey mitochondrial (mt DNA ) nuclear (15 microsatellites) genomes in C...
Summary 1. Species assemblages of diatoms, rotifers, chydorids, planktonic crustaceans and chironomids were studied in 235 alpine lakes the Alps, Pyrenees, Tatras (Western Carpathians), Retezat (Southern Carpathians) Rila Mountains (Balkans). 2. For all taxonomic groups we found a hierarchical structure community assemblage using distinct scales lake clustering (number k ‐means groups) based on species composition similarity (Hellinger distance). We determined optimal partition types (i.e....
Abstract Body condition is important because it correlated with population and habitat quality parameters. Since the direct measurements are either lethal or unreliable, a wide range of non-lethal body indices has been proposed. The aim our study was to apply compare three (Fulton's index, relative mass index residual index) using size indicator – data for 24 populations yellow bellied toad (Bombina variegata). should be independent indicator, in this case snout vent length (SVL). Therefore...
Abstract Exact location and number of glacial refugia still remain unclear for many European cold‐blooded terrestrial vertebrates. We performed a fine‐scaled multilocus phylogeographic analysis two Bombina species combining mitochondrial variation 950 toads from 385 sites nuclear genes ( Rag‐1, Ncx‐1 ) subset samples to reconstruct their colonization contemporary patterns. identified the lowlands northwest Black Sea Carpathians be important refugial areas B. bombina variegata, respectively....
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,...
Abstract Cryptic phylogeographic diversifications provide unique models to examine the role of phylogenetic divergence on evolution reproductive isolation, without extrinsic factors such as ecological and behavioural differentiation. Yet, date very few comparative studies have been attempted within radiations. Here, we characterize a new speciation continuum in group widespread Eurasian amphibians, Pelobates spadefoot toads, by conducting multilocus (restriction site associated DNA...
Abstract Background In species with complex life cycles, size at metamorphosis is a key life-history trait which reflects the interactions between costs and benefits of in aquatic terrestrial environments. Whereas effects deteriorating larval habitat (e.g. pond desiccation) on triggering an early have been extensively investigated amphibians, consequences resulting reduced fitness post-metamorphic stage remain poorly understood. We tested hypothesis that smaller negatively affects...
Abstract The fire‐bellied toads Bombina bombina and variegata, interbreed in a long, narrow zone maintained by balance between selection dispersal. Hybridization takes place local, genetically differentiated groups. To quantify divergence these groups reconstruct their history demography, we analysed nucleotide variation at the mitochondrial cytochrome b gene (1096 bp) 364 individuals from 156 sites representing entire range of both species. Three distinct clades with high sequence ( K 2 P =...
Abstract Polyploidization is a rare yet sometimes successful way for animals to rapidly create geno‐ and phenotypes that may colonize new habitats quickly adapt environmental changes. In this study, we use water frogs of the P elophylax esculentus complex, comprising two species ( lessonae , genotype LL ; ridibundus RR ) various diploid LR triploid LLR LRR hybrid forms, summarized as P. model studying recent hybridization polyploidization in context speciation. Specifically, compared...
Abstract The Balkan Peninsula hosts a great proportion of Europe’s biodiversity, and this is well illustrated by amphibian richness endemism. Among them, the yellow-bellied toad Bombina variegata has been model in ecology evolution, but several aspects its phylogeography taxonomy remain surprisingly poorly understood. In study, we combine cytochrome b DNA barcoding data (1238 individuals from 355 localities), mitogenome phylogenetics (17.2 kb), gene-based nuclear (3.7 kb four gene fragments)...
It is virtually impossible to compile a complete list of species and map their distributions in any protected area; nevertheless, near inventory vital for an adequate management plan. We use Retezat National Park (Romania) as case study assess the bias faunistic inventories over past 70 years. one most studied Eastern Europe since it shelters some last patches virgin old-growth forest Europe. reviewed scientific literature published early 1900s dealing with surveys retrieved occurrence...
Abstract Depletion of polymorphism at major histocompatibility complex (MHC) genes has been hypothesized to limit the ability populations respond emerging pathogens, thus putting their survival risk. As pathogens contribute substantially global amphibian decline, assessing patterns MHC variation is important in devising conservation strategies. Here, we directly compare levels class II and neutral between multiple great crested newt ( Triturus cristatus ) from refugial (REF: Romania)...
Rapid climate change represents one of the top threats to biodiversity, causing declines and extinctions many species. Range shifts are a key response, but in cases incompatible with current extent protected areas. In this study we used ensemble species distribution models identify range changes for 21 reptile 16 amphibian Romania 2020s 2050s time horizons under three emission scenarios (A1B = integrated world, rapid economic growth, A2A divided growth [realistic scenario], B2A regional...
The reptile fauna of Romania comprises 23 species, out which 12 species reach here the limit their geographic range. We compiled and updated a national database occurrences from variety sources including our own field surveys, personal communication specialists, museum collections scientific literature. occurrence records were georeferenced stored in geodatabase for additional analysis spatial patterns. revealed biased sampling effort concentrated various protected areas, deficient vast...
Abstract The hydroperiod of breeding habitats imposes a strong selection on amphibians and pond‐breeding species usually exhibit high degree plasticity in the duration larval period. However, potential for phenotypic fast developing was investigated only small number anurans, specific response to environmental cues such as low water versus decreasing level, well effects particular developmental stages, are even less understood. In this context, we plastic pond desiccation neotropical (...