Delfi Sanuy

Delfi Sanuy
Universitat de Lleida | UDL · Department of Animal Science

Ph Dr.

About

106
Publications
19,209
Reads
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1,102
Citations
Additional affiliations
January 2011 - present
Université Savoie Mont Blanc
May 2010 - May 2010
Universität Koblenz-Landau
Position
  • professor vistant
January 2010 - present
Education
August 1971 - June 1974
Autonoma Barcelona
Field of study

Publications

Publications (106)
Article
Full-text available
All of the environmental conditions in nature act on an organism simultaneously. However, in experimental studies of the factors influencing metamorphosis, each factor needs to be examined individually in order to disentangle its specific effects. However, it is challenging to then build properly integrated models which include data on all of the d...
Article
Full-text available
Demographic traits were analyzed in the Pyrenean brook newt (Calotriton asper) to evaluate whether its variability responds to the adaptation to the different habitats. In this study, life history traits of Calotriton asper were studied in nine populations living in two different kinds of habitats in the Pyrenees mountains: lakes and streams. Skele...
Article
Full-text available
Differences in environmental conditions such as those between lakes and streams can produce phenotypic variation and ultimately promote evolutionary diversification. Some species of newts and salamanders can occupy these habitats and express alternative phenotypes: metamorphs that lose gills at metamorphosis and paedomorphs that retain them at the...
Article
Full-text available
Facultative paedomorphosis is a common polyphenism in newts where two alternative phenotypes can coexist: metamorphs and paedomorphs (mature with larval traits, i.e. retaining gills). This phenomenon has been reported in some lacustrine populations of the Pyrenean newt (Calotriton asper). The morphology and life-history traits were studied in a lac...
Article
Full-text available
The Pyrenees represent a natural laboratory for biogeographic, evolutionary and ecological research of mountain fauna as a result of the high variety of habitats and the profound effect of the glacial and interglacial periods. There is a paucity of studies providing a detailed insight into genetic processes and better knowledge on the patterns of g...
Data
List and codification of environmental variables from the BIOCLIM dataset. List and codification of environmental variables from the BIOCLIM dataset. Units expressed and mean, median, minimum and maximum values for the 44 Calotriton asper populations. Temperature data is in units °C *10 with a 0.1°C precision. (XLSX)
Data
Pairwise FST values among Calotriton asper populations. Pairwise FST values among Calotriton asper populations. See Table 1 for the population codification; p values were <0.05 for all pairs except for those in bold. (XLSX)
Data
Estimates of effective population size (Ne) for each Calotriton asper population. Estimates of effective population size (Ne) for each Calotriton asper population, calculated with two analytical approaches (ONeSAMP, and COLONY) and using different priors; estimates of the upper and lower 95% CI estimates for each method are indicated. (XLSX)
Data
Plot of deltaK values calculated by Evanno’s method from the Structure analyses. Plot of deltaK values calculated by Evanno’s method from the Structure analyses. A) Global dataset of the 44 Calotriton asper populations. B) Western Pyrenean populations, i.e. Cluster 1. C) Central-eastern Pyrenean populations, i.e. Cluster 2. (TIF)
Data
IBD of the five genetic clusters. Results of the isolation by distance analyses (IBD; Mantel test) of the five genetic Calotriton asper clusters. (XLSX)
Data
Microsatellite data of the Calotriton asper dataset used. (XLSX)
Data
Neighbor-joining tree among the Calotriton asper populations. Neighbor-joining tree using DA distances among the Calotriton asper populations showing the relationships between the five genetic clusters defined by STRUCTURE analysis. As for the population codifications see Table 1. (TIF)
Data
Pearson correlation matrix of environmental and geographical variables. Pearson correlation matrix of environmental and geographical variables. In bold, significant levels of p<0.05. See text, for the codes of the variables. (XLSX)
Data
Univariate linear regression between genetic diversity and geographical and environmental selected variables. Univariate linear regression between genetic diversity and geographical and environmental selected variables of Calotriton asper populations. In bold significant levels of p<0.05. (XLSX)
Data
Linear regressions between the genetic diversity across the longitude and altitude using only stream populations. Linear regressions between the three genetic diversity indices (Ar, HO and HE) across the longitude (A) and altitude (B) ranges when only stream Calotriton asper populations were analyzed. (TIF)
Data
ANOVA among the three distinct habitat types to genetic diversity. ANOVA with Tukey HSD posthoc test among the three distinct habitat types to allelic richness (Ar) observed (HO) and expected heterozygosity (HE). (XLSX)
Data
Spatial interpolation of the genetic diversity measures acroos the Calotriton asper distribution range. Spatial interpolation of the genetic diversity of Calotriton asper. A) First axis of a principal components analysis (PC1) summarizing the allelic richness, the rarified private allele richness and the observed and expected heterozygosities (posi...
Article
We report a case of strong population decline in a population of Pyrenean newt (Calotriton asper) in the Ibon of Perramó, Aragon, Central Pyrennes, Spain. Field sampling performed during July 2017 showed a clear reduction of the population size in comparison with previous years. Less of 25 individuals were observed by sampling the southeastern shor...
Article
Full-text available
The mechanisms that can contribute in the fish movement strategies and the associated behaviour can be complex and related to the physiology, genetic and ecology of each species. In the case of the brown trout (Salmo trutta), in recent research works, individual differences in mobility have been observed in a population living in a high mountain ri...
Data
Metabolites correlating with fork length. (DOCX)
Data
Metabolite dataset. Set of metabolites raw abundances, integrated and distributed within individuals, with its individualized phenotypic characteristics. (ZIP)
Data
Metabolites correlating with sex. (DOCX)
Data
Molecules correlating with home range. (DOCX)
Article
Full-text available
Thoropa miliaris is a frog species endemic to the Brazilian Atlantic Rainforest, inhabiting wet rocky habitats. Males of this species present nuptial excrescences, which are keratinized spines on the surface of some fingers and internal metacarpal tubercles. Although these spines are usually associated with male adulthood, no details of their devel...
Article
Full-text available
The genus Chalcides comprises about 30 species of scincid lizards mainly distributed across north Africa, its taxonomic status and distribution as described in the literature has fluctuated in recent years. in May 2014, the authors found a skink of the Chalcides type in Théniet el Had national Park (Algeria) initially classified as Chalcides ­merte...
Article
Full-text available
Skeletochronology was used to estimate age and several life history traits of the Iberian spadefoot toad (Pelobates cultripes) from a semiarid zone of the Ebro Valley (in the northeastern Iberian Peninsula). The lines of arrested growth (LAGs) were clearly visible in all cross sections of the adult phalanges, showing fast growth in the first year o...
Poster
Full-text available
* Diploma to the best student poster communication * * For more information about the methodology, see: https://www.youtube.com/watch?v=RmQa5P-PNjY * The pattern of movements of a stream-resident population of brown trout (Salmo trutta L.) was investigated in the river Flamisell (Ebro basin, North East Spain) over an 11-month period (April 2013 - F...
Poster
Full-text available
A de novo transcriptome sequencing strategy (RNA-seq) was performed to identify Single Nucleotide Polymorphisms (SNPs) as suitable genetic markers of Salmo trutta expressed genes in muscle and telencephalon. The two tissues were obtained from 25 individuals of a wild population in the Flamisell River (Catalan Pyrenees). Samples were immediately fro...
Poster
Full-text available
Understanding animal behavior adaptation and its underlying molecular basis is an important role in evolutionary biology. “Upstream” stimulus behavior is defined as an exploratory impulse exhibited by a proportion of individuals that swim long distance upstream. This stimulus behavior has been considered a proxy for the most complex migratory behav...
Article
Full-text available
Ce travail vise à établir la relation entre les marques de croissance histologiques (lignes d’arrêt de croissance [LAC]) et les traits vitaux de Discoglossus pictus (Répartition par âge selon le sexe, la longévité, durée de vie moyenne, relation taille-âge, relation taille-sexe). Nous avons effectué un comptage des lignes d’arrêt de croissance (LAC...
Article
Full-text available
RESUM Es presenten els resultats d'una expedició herpetològica al nord d'Algèria, feta la primavera de 2014, entre el 22 de maig i el 7 de juny, en dues regions (Tiaret i Chlef), que tenen característiques molt diferents pel que fa a condicions bioclimàtiques, geomorfologia i vegetació. Es van identificar un total de 28 espècies (6 amfibis i 22 rèp...
Article
Full-text available
Variations on embryonic and larval life history traits of ectotherm organisms are strongly affected by temperature conditions. However, these effects can vary between species and populations depending on the mechanisms that act in a determinate local habitat. In the present study, we analysed the effects of temperature on several embryonic and larv...
Article
Full-text available
L'étude que nous présentons vise deux objectifs : élargir nos connaissances sur l'herpétofaune de la région de Tiaret et des zones avoisinantes en mettant principalement l'accent sur sa distribution et mettre à jour les menaces dont elle peut être victime afin de proposer des solutions qui permettent d'aider à la conservation des espèces. Au printe...
Research
Full-text available
The study that we present has two objectives: to expand our knowledge of the herpetofauna in the region of Tiaret and bordering areas, with a primary focus on distribution and update the threats that will affect this group, to propose solutions to protect and conserve the species of these areas. In spring 2014, we identified in this study, 6 specie...
Article
Patterns of sexual dimorphism and age structure were investigated in two populations of the newt Calotriton arnoldi, endemic of the Montseny Massif (NE of the Iberian Peninsula). In contrast to the Pyrenean newt (Calotriton asper) sexual dimorphism in the Montseny brook newt is characterized by slightly larger females (60.3 ± 0.3 mm; maximum: 68 mm...
Article
Full-text available
In the last decade, taxonomic studies have drastically increased the number of species known to inhabit the Arabian deserts. While ongoing phylogenetic studies continue to identify new species and high levels of intraspecific genetic diversity, few studies have yet explored the biogeographic patterns in this arid region using an integrative approac...
Article
Full-text available
Many studies have identified climate warming to be among the most important threats to biodiversity. Climate change is expected to have stronger effects on species with low genetic diversity, ectothermic physiology, small ranges, low effective populations sizes, specific habitat requirements and limited dispersal capabilities. Despite an ever-incre...
Article
Full-text available
Being ectothermic animals, freshwater turtles depend on environmental temperatures for thermoregulation (HUEY 1982). Thus, temperature plays a key role in determining turtle behavior, from microhabitat selection for feeding or breeding (BROW & BROOKS 1991; NIEUWOLT 1996) to the formation of population structures and geographical distribution patter...
Article
Full-text available
Painted frogs (Discoglossus) contain five to six species of Western Palearctic anurans that are mainly distributed in allopatry. We here provide the first comprehensive assessment of the phylogeography of the Moroccan species D. scovazzi and geographically characterize its contact zone with D. pictus in Eastern Morocco. Discoglossus scovazzi shows,...
Article
Full-text available
Painted frogs (Discoglossus) contain 5-6 species of Western Palearctic anurans that are mainly distributed in allopatry. We here provide the first comprehensive assessment of the phylogeography of the Moroccan D. scovazzi and geographically characterize its contact zone with D. pictus in Eastern Morocco. Discoglossus scovazzi shows, in general, a w...
Article
The Pyrenean brook newt (Calotriton asper) is a salamandrid that mostly lives in fast running and cold mountain-streams, although some populations are also found in lakes. In the present work, we report in detail on the occurrence of facultative paedomorphosis traits in a population from a Pyrenean high altitude lake. We compare its morphology, lif...
Article
Full-text available
We aimed at determining the effects of past climatic conditions on contemporary intraspecific genetic structuring of the endemic Moroccan midwife toad Alytes maurus using mitochondrial DNA (12S, 16S and cytochrome b) analysis and ecological niche modelling. Unexpectedly, our genetic analyses show that A. maurus presents a low level of variability i...
Article
Full-text available
Across altitudinal and latitudinal gradients, the proportion of suitable habitats varies, influencing the individual dispersal that ultimately can produce differentiation among populations. The natterjack toad (Bufo calamita) is distributed across a wide geographic range that qualifies the species as interesting for a geographic analysis of its gen...
Data
The delimitation of the spatial equivalent of isolated populations or interacting sets of local populations is crucial for conservation management. In Amphibia, spatial organization in metapopulations requires knowledge on the individual variation of annual migratory capacity within local populations to delimit core habitats around the breeding sit...
Article
Full-text available
The Natterjack toad remains one of the best-studied amphibians within Europe and much of the research conducted has had a direct conservation focus. Long-term collaboration between researchers and conservation practitioners in different countries has been a hallmark of the programme, and the exchange of data and experiences has been of mutual benef...
Article
Full-text available
Demographic life-history traits of Pelophylax saharicus from the Tiaret region (Algeria) were analysed using skeletochronological methods. Lines of arrested growth (LAGs) were characterized by a weak expression of bone growth marks, similar to other North African populations of the same species and probably due to a short inactivity period in pre-S...
Data
Probability that the species moves between environments. : Probability that species will move from environment to environment when there is a lack of resources. e1: Pyrenees; e2: Pre-Pyrenees. (DOCX)
Data
Supporting information. (DOC)
Data
Values of parameters used in the model for each species. (F = female, M = male, A = spend the entire year in the mountain, P = spend part of the year in the ecosystem). (DOCX)
Article
Full-text available
The reduction in the amount of food available for European avian scavengers as a consequence of restrictive public health policies is a concern for managers and conservationists. Since 2002, the application of several sanitary regulations has limited the availability of feeding resources provided by domestic carcasses, but theoretical studies asses...
Article
Full-text available
In this paper, a P systems based general framework for modeling ecosystems dynamics is presented. Particularly, ecosystems are specified by means of multienvironment P systems composed of a finite number of environments, each of them having an extended P system with active membranes. The semantics is of a probabilistic type and it is implemented by...
Article
Full-text available
Anthropogenic sources of nitrogen that pollute bodies of water can have toxic and sub-lethal effects on amphibians. It has been hypothesized that such exposure may promote local adaptation, that is, selection for higher tolerance in individuals in populations exposed to pollutants. We tested this hypothesis with respect to the Natterjack toad (Bufo...
Article
The models used for ecosystems modeling are generally based on differential equations. However, in recent years new computational models based on biological processes, or bioinspired models, have arisen, among which are P systems. These are inspired by the functions of cells and present important advantages with respect to traditional models, such...
Book
Full-text available
A més de posar en evidència el valor natural i l’elevada riquesa d’aquest territori, l’estudi dels boscos, les pastures, el paisatge i els usos tradicionals han fet possible que en el llibre es proposin tot un seguit de criteris de gestió. També, que es posi de manifest que l’activitat humana ha contribuït a l’enriquiment de l’espai però, alhora, q...