Resultados totales (Incluyendo duplicados): 520
Encontrada(s) 52 página(s)
r-INCLIVA. Repositorio Institucional de Producción Científica de INCLIVA
oai:incliva.fundanetsuite.com:p4067
Otros (other). 2019

LAPAROSCOPIC NEPHROURETERECTOMY AS TREATMENT IN OBSTRUCTED HEMIVAGINA AND IPSILATERAL RENAL AGENESIS (OHVIRA) SYNDROME.

  • Medina-Gonzalez M
  • Panach-Navarrete J
  • Valls-Gonzalez L
  • Castello-Porcar A
  • Martinez-Jabaloyas J

Proyecto: //
DOI: https://incliva.fundanetsuite.com/publicaciones/ProdCientif/PublicacionFrw.aspx?id=4067
r-INCLIVA. Repositorio Institucional de Producción Científica de INCLIVA
oai:incliva.fundanetsuite.com:p4067
HANDLE: https://incliva.fundanetsuite.com/publicaciones/ProdCientif/PublicacionFrw.aspx?id=4067
r-INCLIVA. Repositorio Institucional de Producción Científica de INCLIVA
oai:incliva.fundanetsuite.com:p4067
PMID: https://incliva.fundanetsuite.com/publicaciones/ProdCientif/PublicacionFrw.aspx?id=4067
r-INCLIVA. Repositorio Institucional de Producción Científica de INCLIVA
oai:incliva.fundanetsuite.com:p4067
Ver en: https://incliva.fundanetsuite.com/publicaciones/ProdCientif/PublicacionFrw.aspx?id=4067
r-INCLIVA. Repositorio Institucional de Producción Científica de INCLIVA
oai:incliva.fundanetsuite.com:p4067

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/273128
Dataset. 2022

BIOGEOCHEMICAL VARIABLES ALONG THE SOIL PROFILE OF THREE SALTMARSH CORES SAMPLED IN AN ESTUARY OF THE GULF OF BISCAY

  • Mazarrasa, Inés
  • García-Orellana, Jordi
  • Puente, Araceli
  • Juanes, José A.
This database contains data on different biogeochemical variables measured in three soil cores (32-39 cm long) sampled in a saltmarsh community of the Bay of Santander (Gulf of Biscay). Soil cores were extracted in June 2019 within an area of 25 m2 in a high marsh community located at the mouth of the Miera estuary, within the Bay of Santander (43.452136°/ -3.748134°) by manually hammering a PVC tube (60 cm L * 7 cm Ø). Compression was measured during sampling of each of the cores. The cores were preserved frozen until processing. The longest core (BS2A1, 39 cm) was sliced every 1 cm, whereas the other two cores (BSA2, BS2A3) were sliced every 2 cm for the top 20 cm and every 5 cm for the deeper layers. Each sediment slice was measured for wet volume and dried at 60 ºC for a minimum of 72 h. The dry weight of each slice was measured and used together with wet volume to estimate sediment dry bulk density (DBD in g·cm-3). Soil organic carbon content (Corg % DW) was measured every two or three slices along the sediment depth profile of each core. Corg was analyzed in the IHLab Bio laboratory of the IHCantabria using a TC analyzer (Shimadzu TOC-L + SSM-5000A). Grain size analysis was performed every other sample at the Universitat de Barcelona with a Beckman Coulter LS GB500. Organic Corg isotopic signature (δ13Corg) (in pre-acidified subsamples) was measured using an Elemental Analyzer Flash IRMS coupled with an Isotope Ratio Mass Spectrometry (DeltaV A) at the Universidad de la Coruña. The years of sediment accumulation were estimated from concentration profiles of 210Pb, determined by alpha spectrometry through the measurement of its granddaughter 210Po, assuming radioactive equilibrium between both radionuclides. About 100–200 mg aliquots of each sample were spiked with 209Po and microwave digested with a mixture of concentrated HNO3 and HF. Boric acid was then added to complex fluorides. The resulting solutions were evaporated and diluted to 100 mL 1M HCl and Po isotopes were auto plated onto pure silver disks. Polonium emissions were measured by alpha spectrometry using PIPS detectors (CANBERRA, Mod.PD-450.18 A.M). Reagent blanks were comparable to the detector backgrounds. Analyses of replicate samples and reference materials were carried out systematically to ensure the accuracy and the precision of the results. The supported 210Pb was estimated as the average 210Pb concentration of the deepest layers once 210Pb reached constant values. Then, excess 210Pb (210Pbxs) concentrations were obtained by subtracting the supported 210Pb from the total 210Pb. Age model of the sediment depth profile records was obtained by modeling the 210Pbxs concentration profiles along the accumulated mass at each site. The model age of the sediment record was estimated using the Constant Flux: Constant Sedimentation model (CF:CS, 76). In order to assess the impact of the bridge construction on the biogeochemical properties of the saltmarsh soil, we compare all biogeochemical properties across two sections of the core, divided based on the results of 210Pb dating: sediments accumulated before and after the building of the bridge (i.e., before vs. after 1978).concentration profiles of 210Pb and applying the Constant Flux: Constant Sedimentation model (CF:CS, Krishnaswamy et al. 1971)., This database contains biogeochemical data on different biogeochemical variables measured in three soil cores sampled in a saltmarsh community of the Bay of Santander (Gulf of Biscay)., These data were compiled with the contribution of the LIFE Programme of the European Union to the Project ADAPTA BLUES (ref. LIFE18 CCA/ ES/001160). This document reflects only the author’s view and the Agency/ Commission is not responsible for any use that may be made of the information it contains.Authors acknowledges the financial support from the Government of Cantabria through the Fénix Programme. The authors want to thank the support of the Generalitat de Catalunya to MERS (2017 SGR-1588) and the Spanish Government for the “Maria de Maeztu” program for Units of Excellence to ICTA (grant no. CEX2019-000940-M)., -Infrastructure impact_Data.xlsx: the Database to be published. -Variables Database.xlsx, Peer reviewed

Proyecto: //
DOI: http://hdl.handle.net/10261/273128, https://doi.org/10.20350/digitalCSIC/14682
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/273128
HANDLE: http://hdl.handle.net/10261/273128, https://doi.org/10.20350/digitalCSIC/14682
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/273128
PMID: http://hdl.handle.net/10261/273128, https://doi.org/10.20350/digitalCSIC/14682
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/273128
Ver en: http://hdl.handle.net/10261/273128, https://doi.org/10.20350/digitalCSIC/14682
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/273128

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/280150
Dataset. 2019

SUPREMET HACKATHON

  • González-Recio, Oscar
This data set contains information on the rumen microbiome of 340 dairy cows, sequenced within the METALGEN project (RTA2015-00022-C03).-- Sequenced with a MinION from Oxford Nanopore Technology., The purpose of this data set is to serve as a training exercise to predict a complex phenotype using metagenomic data within the workshop SUPREMET 2019 "Supercomputación para la predicción de enfermedades y caracteres complejos usando información del metagenoma"., METALGEN, Ministerio de Ciencia, Innovación y Universidades, RTA2015-00022-C03., Peer reviewed

DOI: http://hdl.handle.net/10261/280150
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/280150
HANDLE: http://hdl.handle.net/10261/280150
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/280150
PMID: http://hdl.handle.net/10261/280150
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/280150
Ver en: http://hdl.handle.net/10261/280150
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/280150

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/280152
Dataset. 2019

INVENTARIO NACIONAL DE RECURSOS FITOGENÉTICOS CEREALES DE INVIERNO

  • Rosa, Lucía de la
  • García, Rosa M.
Cereales de invierno 2020., Peer reviewed

Proyecto: //
DOI: http://hdl.handle.net/10261/280152
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/280152
HANDLE: http://hdl.handle.net/10261/280152
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/280152
PMID: http://hdl.handle.net/10261/280152
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/280152
Ver en: http://hdl.handle.net/10261/280152
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/280152

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/282712
Dataset. 2019

DIETARY STRESS INCREASES THE TOTAL OPPORTUNITY FOR SEXUAL SELECTION AND MODIFIES SELECTION ON CONDITION-DEPENDENT TRAITS

  • Cattelan, Silvia
  • Evans, Jonathan P.
  • García-González, Francisco
  • Morbiato, Elisa
  • Pilastro, Andrea
Although it is often expected that adverse environmental conditions depress the expression of condition-dependent sexually-selected traits, the full consequences of environmental change for the action of sexual selection, in terms of the opportunity for total sexual selection and patterns of phenotypic selection, are unknown. Here we show that dietary stress in guppies, Poecilia reticulata, reduces the expression of several sexually-selected traits and increases the opportunity for total sexual selection (standardized variance in reproductive success) in males. Furthermore, our results show that dietary stress modulates the relative importance of precopulatory (mating success) and postcopulatory (relative fertilization success) sexual selection, and that the form of multivariate sexual selection (linear vs. nonlinear) depends on dietary regime. Overall, our results are consistent with a pattern of heightened directional selection on condition-dependent sexually-selected traits under environmental stress, and underscore the importance of sexual selection in shaping adaptation in a changing world., Peer reviewed

Proyecto: //

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/283374
Dataset. 2019

DATA FROM: GLOBTHERM, A GLOBAL DATABASE ON THERMAL TOLERANCES FOR AQUATIC AND TERRESTRIAL ORGANISMS

  • Bennett, Joanne M.
  • Calosi, Piero
  • Clusella-Trullas, Susana
  • Martínez, Brezo
  • Sunday, Jennifer
  • Algar, Adam C.
  • Araújo, Miguel B.
  • Hawkins, Bradford A.
  • Keith, Sally
  • Kühn, Ingolf
  • Rahbek, Carsten
  • Rodríguez, Laura
  • Singer, Alexander
  • Villalobos, Fabricio
  • Olalla-Tárraga, Miguel Ángel
  • Morales-Castilla, Ignacio
[Usage Notes] GlobTherm, a global database on thermal tolerances for aquatic and terrestrial organisms, Excel format This database includes thermal tolerance metrics for 2,133 species of multicellular algae, plants, fungi, and animals in 43 classes, 203 orders and 525 families from both aquatic, and terrestrial realms, extracted from published studies. Abbreviated citations are included in the 'REF_min' and 'REF_max' variable in the data file. For full citations, please see the attached workbook, "References_1_09_2017.xlsx". The data are available in both Excel and CSV formats in the Dryad Digital Repository (doi:10.5061/dryad.1cv08). Updates to the data and metadata will be curated through the iDiv data portal (https://idata.idiv.de/). For example, in the future we plan to include interspecific variation in the dataset, to provide multiple estimates of thermal tolerance limits for a given species where estimates determined using the best possible methods will be more highly ranked. GlobalTherm_upload_10_11_17.xlsx References_1_09_2017.xlsx GlobTherm, a global database on thermal tolerances for aquatic and terrestrial organisms, CSV format This database includes thermal tolerance metrics for 2,133 species of multicellular algae, plants, fungi, and animals in 43 classes, 203 orders and 525 families from both aquatic, and terrestrial realms, extracted from published studies. Abbreviated citations are included in the 'REF_min' and 'REF_max' variable in the data file. For full citations, please see the attached workbook, "References_1_09_2017.xlsx". The data are available in both Excel and CSV formats in the Dryad Digital Repository (doi:10.5061/dryad.1cv08). Updates to the data and metadata will be curated through the iDiv data portal (https://idata.idiv.de/). For example, in the future we plan to include interspecific variation in the dataset, to provide multiple estimates of thermal tolerance limits for a given species where estimates determined using the best possible methods will be more highly ranked. GlobalTherm_upload_02_11_17.csv References_1_09_2017.xlsx, How climate affects species distributions is a longstanding question receiving renewed interest owing to the need to predict the impacts of global warming on biodiversity. Is climate change forcing species to live near their critical thermal limits? Are these limits likely to change through natural selection? These and other important questions can be addressed with models relating geographical distributions of species with climate data, but inferences made with these models are highly contingent on non-climatic factors such as biotic interactions. Improved understanding of climate change effects on species will require extensive analysis of thermal physiological traits, but such data are scarce and scattered. To overcome current limitations, we created the GlobTherm database. The database contains experimentally derived species’ thermal tolerance data currently comprising over 2,000 species of terrestrial, freshwater, intertidal and marine multicellular algae, pl ants, fungi, and animals. The GlobTherm database will be maintained and curated by iDiv with the aim of expanding it, and enable further investigations on the effects of climate on the distribution of life on Earth., Peer reviewed

Proyecto: //

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/283380
Dataset. 2019

DATA FROM: TRADE-OFFS AND SYNERGIES BETWEEN BIRD CONSERVATION AND WILDFIRE SUPPRESSION IN THE FACE OF GLOBAL CHANGE

  • Regos, Adrián
  • Hermoso, Virgilio
  • D'Amen, Manuela
  • Guisan, Antoine
  • Brotons, Lluís
[Usage Notes] Data files from Regos et al. (2018) These data files include the environmental suitability predicted from the SESAM framework for each bird species, under each run simulation and management scenario. It also includes the Natura 2000 network at 100 m and all remaining files required to run MARXAN simulations. Datafiles.zip, 1. The combined effects of climate change and other factors, such as land use change or fire disturbance, pose daunting challenges for biodiversity conservation worldwide. 2. In this study, we predicted the future effectiveness of the Natura 2000 (N2000), the current network of protected areas (PA) in Europe, at maintaining and representing suitable environmental conditions for a set of 79 bird species between 2000 and 2050 in a fire-prone area strongly affected by land abandonment processes in NE Spain. We then compared PA performance against a set of alternative priority areas for conservation, which take into account fire–vegetation dynamics, selected by using a conservation planning tool (MARXAN). Fire–vegetation dynamics were modelled using a process-based model (MEDFIRE MODEL) under alternative fire management and climate change scenarios. Bird assemblage distributions were predicted using the spatially-explicit species assemblage modelling frameworkSESAMusing distribution models from individual species that hierarchically integrate climate change and wildfire–vegetation dynamics. 3. The amount of suitable environmental conditions within the N2000 network was predicted to fall by around 15%, on average, over the next decades in relation to the initial conditions, but could be partially modulated by fire management policies in the near future. The efficiency of the current PA system was predicted to decrease from 17.4 to 15% over the next decades. However, a more efficient PA system could be achieved with a conservation planning approach that explicitly considers fire–vegetation dynamics and their management. 4. Synthesis and applications: Our findings shed light on: (1) how the current Natura 2000 might still hold an important bird conservation value by 2050; (2) how the relocation of some protected areas could be considered along the next decades to substantially increase bird conservation effectiveness; and (3) how the integration of fire-vegetation dynamics, fire management policies and their objectives within conservation planning can provide ‘win-win’ solutions for bird conservation and fire prevention in fire-prone abandoned landscapes., Peer reviewed

Proyecto: //

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/283385
Dataset. 2019

DATA FROM: THE BALANCE OF CANOPY AND SOIL EFFECTS DETERMINES INTRASPECIFIC DIFFERENCES IN FOUNDATION SPECIES’ EFFECTS ON ASSOCIATED PLANTS

  • Pistón Caballero, Nuria
  • Michalet, Richard
  • Schöb, Christian
  • Macek, Petr
  • Armas, Cristina
  • Pugnaire, Francisco I.
[Usage Notes] Piston_et_al_2018_Data.zip All data used to assess whether two contrasted canopy phenotypes (tight and loose) of the shrub Cytisus galianoi differed in their effects on the microhabitat and on subordinate plant community composition in a dry subalpine system. We also experimentally distinguished the relative contribution of above- (canopy) and below-ground (soil) effects of C. galianoi on the most frequent subordinate species, Festuca indigesta, as well as the reciprocal effects of F. indigesta on C. galianoi. Pistón_et_al_2018_Data.zip, 1. The impact of plant-plant interactions on species diversity patterns has been broadly addressed in stressful environments, such as alpine ecosystems, where foundation species promote species richness by creating habitat for other species. However, foundation species with contrasting phenotypes might modify the microhabitat differently, which would alter the subordinate community composition, and coincide with distinct feedback effects of those subordinate species on the foundation species. However, the precise interaction mechanisms that facilitate species are not fully understood, especially the relative contribution of above- and below-ground compartments of foundation species to subordinate species and the potential feedbacks they receive. 2. We explored whether two contrasted canopy phenotypes (tight and loose) of the shrub Cytisus galianoi differed in their effects on the microhabitat and on subordinate plant community composition in a dry subalpine system. We also experimentally distinguished the relative contribution of above- (canopy) and below-ground (soil) effects of C. galianoi on the most frequent subordinate species, Festuca indigesta, as well as the reciprocal effects of F. indigesta on C. galianoi. 3. We performed observational and manipulative experiments to assess the influence of phenotypic differences of the shrub on understory microhabitat and subordinate plant community composition. Reciprocal effects were assessed by removing either F. indigesta from the understory of the two shrub phenotypes or the C. galianoi canopy from the immediate vicinity of F. indigesta. 4. The two C. galianoi phenotypes differed in mean values of functional traits (like stem density or plant height), modified their understory microhabitats differently, and hosted distinct subordinate communities. Loose phenotypes had more positive effects on community composition and diversity than tight phenotypes. Additionally, tight phenotypes simultaneously showed both more positive aboveground and more negative belowground effects on F. indigesta than loose phenotypes. There were no significant feedback effects of F. indigesta on C. galianoi. 5. The two phenotypes of the foundation species C. galianoi showed contrasting effects on the subordinate plant community: compared to the tight phenotype, the loose phenotype had higher associated species diversity and reduced reciprocal interaction intensities above- and below-ground with the subordinate species F. indigesta. This highlights the impact of phenotypic variation for plant interactions and community-level diversity., Peer reviewed

Proyecto: //

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/283533
Dataset. 2019

DATA FROM: QUANTIFYING TEMPORAL CHANGE IN PLANT POPULATION ATTRIBUTES: INSIGHTS FROM A RESURRECTION APPROACH

  • Gómez, Rocío
  • Méndez-Vigo, Belén
  • Marcer, Arnald
  • Alonso-Blanco, Carlos
  • Picó, F. Xavier
[Usage Notes] Arabidopsis_resurrection_13sep18. Flowering time data, microsatellite data and weather data from Iberian Arabidopsis thaliana accessions included in the resurrection experiments., Rapid evolution in annual plants can be quantified by comparing phenotypic and genetic changes between past and contemporary individuals from the same populations over several generations. Such knowledge will help understand the response of plants to rapid environmental shifts, such as the ones imposed by global climate change. To that end, we undertook a resurrection approach in Spanish populations of the annual plant Arabidopsis thaliana that were sampled twice over a decade. Annual weather records were compared to their historical records to extract patterns of climatic shifts over time. We evaluated the differences between samplings in flowering time, a key life-history trait with adaptive significance, with a field experiment. We also estimated genetic diversity and differentiation based on neutral nuclear markers and nucleotide diversity in candidate flowering time (FRI and FLC) and seed dormancy (DOG1) genes. The role of genetic drift was estimated by computing effective population sizes with the temporal method. Overall, two climatic scenarios were detected: intense warming with increased precipitation and moderate warming with decreased precipitation. The average flowering time varied little between samplings. Instead, within-population variation in flowering time exhibited a decreasing trend over time. Substantial temporal changes in genetic diversity and differentiation were observed with both nuclear microsatellites and candidate genes in all populations, which were interpreted as the result of natural demographic fluctuations. We conclude that drought stress caused by moderate warming with decreased precipitation may have the potential to reduce within-population variation in key life-cycle traits, perhaps as a result of stabilising selection on them, and to constrain the genetic differentiation over time. Besides, the demographic behaviour of populations probably accounts for the substantial temporal patterns of genetic variation, while keeping rather constant those of phenotypic variation., Peer reviewed

Proyecto: //

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/283539
Dataset. 2019

DATA FROM: HEAT TOLERANCE IS MORE VARIABLE THAN COLD TOLERANCE ACROSS SPECIES OF IBERIAN LIZARDS AFTER CONTROLLING FOR INTRASPECIFIC VARIATION

  • Herrando-Pérez, Salvador
  • Monasterio, Camila
  • Beukema, Wouter
  • Gomes, Verónica
  • Ferri-Yáñez, Francisco
  • Belliure, Josabel
  • Chown, Steven L.
  • Buckley, Lauren B.
  • Vieites, David R.
  • Araújo, Miguel B.
[Methods] Author contributions: Monasterio, Beukema and Gómes lead field (lizard sampling) and lab (estimation of thermal limits and measurement of body weights) work, and Monasterio and Araújo designed experiments. Herrando-Pérez conceived the idea of the two research manuscripts (Functional Ecology, Journal of Animal Ecology) and submitted the data to Dryad. Funding: MBA partly funded through CGL2011-26852 project of the Spanish Ministry of Economy and Competitiveness. Field and experimental work funded by IC&DT 1/SAESCTN/ALENT-07-0224-FEDER-001755 project led by MBA. Acknowledgements: We thank the Biological Station of “El Ventorrillo” for hosting the field team and for providing the thermal experimental facilities essential for this research. We also thank Tim Leerschool, Filipe Serrano and Matthijs Hollanders for their support in the field. Collection permits: Samples, experiments and use of experimental animals supported for Portuguese populations by permits 360 to 362/2014/CAPT and 550 to 552/2014/CAPT (Instituto da Conservação da Natureza e das Florestas), and for Spanish populations by permits (autonomous communities in parenthesis hereafter) SGYB/EF/FJRH Re-9H/13 & SGYB/AF/DBP Re-79y131/14 (Andalucía), 2014-500201724/2014/02343 & INAGA/5000201/24/2013/04434 (Aragón), DGMEN/SEN/avp_13_025_aut & DGMEN/SEN/avp_14_020_aut (Castilla La Mancha), P/CYL/101/2013 & EP/CYL/106/2014 (Castilla y León), CN0023/14/ACA1587(14) (Extremadura), 2566/RX131316//clave031/2013 & 2241/RX123724//clave018/2014 (Galicia), and 10/033298.9/13 & 10/013907.9/14 (Madrid). [Usage Notes] Content of dataset: Critical Thermal Maxima (CTmax) and Critical Thermal Minima (CTmax) and body weights of 304 male individuals belonging to 59 populations and 15 species of Iberian lizards (Dryad doi: 10.5061/dryad.1553pc3). Body weight, CTmax and CTmin available for all populations except the Moncayo/Soria/Spain population of Podarcis muralis for which CTmin was not measured. Dataset set used in two research manuscripts: Intraspecific variation in lizard heat tolerance alters estimates of climate impact / Journal of Animal Ecology (doi: 10.1111/1365-2656.12914) and Heat tolerance is more variable than cold tolerance across species of Iberian lizards after controlling for intraspecific variation / Functional Ecology (in press). Versions of dataset: the first version of the dataset contained CTmax data alone (Journal of Animal Ecology), species names, population codes, locality names (with region, country, lat/long), the second version of the dataset (Functional Ecology) contains the latter information along with CTmin and body-weight data while the locality names and lat/long have been refined., The widespread observation that heat tolerance is less variable than cold tolerance (‘cold-tolerance asymmetry’) leads to the prediction that species exposed to temperatures near their thermal maxima should have reduced evolutionary potential for adapting to climate warming. However, the prediction is largely supported by species-level global studies based on single estimates of both physiological metrics per taxon. We ask if cold-tolerance asymmetry holds for Iberian lizards after accounting for intraspecific variation in critical thermal maxima (CTmax) and minima (CTmin). To do so, we quantified CTmax and CTmin for 58 populations of 15 Iberian lizard species (299 individuals). Then, we randomly selected one population from each study species (population sample = 15 CTmax and CTmin values), tested for variance homoscedasticity across species, and repeated the test for thousands of population samples as if we had undertaken the same study thousands of times, each time sampling one different population per species. The ratio of variances in CTmax to CTmin across species varied up to 16-fold depending on the populations chosen. Variance ratios show how much CTmax departs from the cross-species mean compared to CTmin, with a unitary ratio indicating equal variance of both thermal limits. Sampling one population per species was six times more likely to result in the observation of greater CTmax variance (‘heat-tolerance asymmetry’) than cold-tolerance asymmetry. The null hypothesis of equal variance was twice as likely for cases of cold-tolerance asymmetry than for the opposite scenario. Range-wide, population-level studies that quantify heat and cold tolerance of individual species are urgently needed to ascertain the global prevalence of cold-tolerance asymmetry. While broad latitudinal clines of cold tolerance have been strongly supported, heat tolerance might respond to smaller-scale climatic and habitat factors hence go unnoticed in global studies. Studies investigating physiological responses to climate change should incorporate the extent to which thermal traits are characteristic of individuals, populations and/or species., British Ecological Society, Award: 4496-5470. European Union, Award: IC&DT 1/SAESCTN/ALENT-07-0224-FEDER-001755. Spanish Ministry of Economy and Competitiveness, Award: CGL2011-26852., Peer reviewed


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