Resultados totales (Incluyendo duplicados): 44820
Encontrada(s) 4482 página(s)
Encontrada(s) 4482 página(s)
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/127825
Dataset. 2016
TRANGENERATIONAL EFFECTS ENHANCE SPECIFIC IMMUNE RESPONSE IN A WILD PASSERINE [DATASET]
- Broggi, Juli
- Soriguer, Ramón C.
- Figuerola, Jordi
Data was collected by Juli Broggi in la Cañada de los Pajaros, Puebla del Rio (Sevilla, Spain), and later analyzed at EBD (Sevilla,) following a detailed experimental design (Spring-summer 2010), Peer reviewed
Proyecto: //
DOI: http://hdl.handle.net/10261/127825
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/127825
HANDLE: http://hdl.handle.net/10261/127825
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/127825
PMID: http://hdl.handle.net/10261/127825
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/127825
Ver en: http://hdl.handle.net/10261/127825
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/127825
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128374
Dataset. 2016
WHEN PARASITES ARE GOOD FOR HEALTH: CESTODE PARASITISM INCREASES RESISTANCE TO ARSENIC IN BRINE SHRIMPS
- Sánchez, Marta I.
- Pons, Inés
- Martínez-Haro, Mónica
- Taggart, Mark A.
- Lenormand, Thomas
- Green, Andy J.
LC50 tests: Naturally infected and uninfected adults of A. parthenogenetica were collected with a plankton net (0.5 mm) within the Odiel saltpan complex. Sampling was carried out on two dates (14th of April and 15th of May 2014). Toxicity experiments were conducted after 24 h of acclimation of the Artemia at 100 g/l salinity. Two experiments were carried out. The first (with Artemia collected on 14th of April) was conducted at 25ºC. The second (Artemia collected on 15th of May) was conducted at both 25 and 29ºC. Median lethal concentration (LC50) was used to quantify Aresenic toxicity in infected and uninfected adult Artemia. Ten concentrations of As between 5 and 140 mg/l were used for the experiments at 25ºC (0, 5, 20, 35, 50, 65, 85, 95, 110, 125, 140 mg/l), and ten between 4 and 67 mg/l were used for the experiment at 29°C (0, 4, 11, 18, 25, 32, 39, 46, 53, 60, 67 mg/l) in order to estimate the LC50. Three replicates were used per concentration, with each replicate made up of a group of 10 individuals. Prevalence (P) and mean abundance (MA) were calculated separately for the “infected group” on both dates.
Oxidative stress analysis and lipid droplet quantification: Artemia were sampled in May 2015 from Odiel salt ponds. A subsample was used to characterize the exact parasite composition (n = 60 infected individuals) and quantify the number of lipid droplets (n = 20 infected and 20 uninfected Artemia). The numbers of cysticercoids, prevalence, mean abundance and mean intensity were calculated for each cestode species. The number of lipid droplets was estimated according to Wurtsbaugh & Gliwicz 2001 [86]. We quantified lipid levels by inspecting individuals at 30x magnification and counting the number of lipid droplets along the right side of the 5th and 6th segments of the body.
The rest of the specimens were acclimated during 24h to the experimental salinity with continuous aeration and fed ad libitum with lyophilized Tetraselmis chuii algae. The toxic concentrations of 4.69 mg/l As was selected on the basis of preliminary LC50 tests. Infected and uninfected A. parthenogenetica of the same size range were allocated to 1L glass vials (100 individuals per vial) with 600 ml of experimental solution (either control (no toxic solution) or 4.69 mg/L As) during 24h at 25 ºC (12:12 photoperiod) without food. After 24h exposure, individuals were stored at ‒80℃ until biochemical analysis. We performed the biochemical analysis on pools of 20 individuals per treatment. Number of replicates varied from 1 to 12 depending on Artemia availability. The different biomarkers were determined in the whole soft tissues after homogenization and centrifugation. We quantified five parameters as a proxy for oxidative status of Artemia: activity of four enzymes (catalase CAT, superoxide dismutase SOD, glutathione peroxidase GPx and glutathione reductase GR) and lipid peroxidation levels (thiobarbituric acid reactive substances TBARS). Total protein content in the supernatant fluid was determined following a standard Bradford’s procedure. Enzyme activity was determined colorimetrically., Peer reviewed
Proyecto: //
DOI: http://hdl.handle.net/10261/128374
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128374
HANDLE: http://hdl.handle.net/10261/128374
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128374
PMID: http://hdl.handle.net/10261/128374
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128374
Ver en: http://hdl.handle.net/10261/128374
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128374
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128883
Dataset. 2016
PRESENCE OF NITROGEN-FIXING MICROORGANISMS IN SEAGRASS, POSIDONIA OCEANICA, ROOTS AND NITROGEN ISOTOPIC SIGNATURE OF SEAGRASS TISSUES
- Garcias-Bonet, Neus
- Arrieta López de Uralde, Jesús M.
- Duarte, Carlos M.
- Marbà, Núria
Triplicate samples of Posidonia oceanica were randomly collected at 26 locations along the Balearic Islands (Mediterranean Sea) during the summers of 2005 and 2006. Roots were subjected to a surface-sterilization protocol prior to nucleic acid extraction. The nitrogenase was amplified by PCR using degenerate primers for nifH gene sequences. The PCR products were checked by electrophoresis on 1.5% agarose gels. The youngest leaf (free of epiphytes) of three shoots and three young rhizome fragments were dried at 60ºC for 48 h and ground to a fine powder. All isotopic analyses were measured using standard elemental analyzer isotope ratio mass spectrometer (EA-IRMS) procedures. Isotopic ratios (R) are reported in the standard delta notation (‰), deltasample=1000((Rsample/Rstandard)-1), where R = 15N/14N. These results are presented with respect to the International standard of atmospheric nitrogen (AIR, N2). Analytical reproducibility of the reported delta values, based on sample replicates, was better than ±0.2‰., This dataset compiles information regarding the detection of nitrogen-fixing bacteria by amplification of the nifH gene coding for nitrogenase enzyme in meadows of an endemic Mediterranean seagrass (Posidonia oceanica). This dataset includes the nitrogen isotopic signature (δ15N) measured on leaves and rhizomes., This study was funded by the projects MEDEICG and ESTRESX of the Spanish Marine Science and Technology Program (CTM2009-07013, CTM2012-32603) under the framework of Spanish Plan Nacional 2008-2012., Peer reviewed
Proyecto: //
DOI: http://hdl.handle.net/10261/128883
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128883
HANDLE: http://hdl.handle.net/10261/128883
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128883
PMID: http://hdl.handle.net/10261/128883
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128883
Ver en: http://hdl.handle.net/10261/128883
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oai:digital.csic.es:10261/128883
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128892
Dataset. 2016
SPEIBASE V.2.4 [DATASET]
- Beguería, Santiago
- Vicente Serrano, Sergio M.
- Reig-Gracia, Fergus
- Latorre Garcés, Borja
The Global 0.5° gridded SPEI dataset is made available under the Open Database License. Any rights in individual contents of the database are licensed under the Database Contents License. Users of the dataset are free to share, create and adapt under the conditions of attribution and share-alike.
The Global SPEI database, SPEIbase, offers long-time, robust information on the drought conditions at the global scale, with a 0.5 degrees spatial resolution and a monthly time resolution. It has a multi-scale character, providing SPEI time-scales between 1 and 48 months. The Standardized Precipitatin-Evapotranspiration Index (SPEI) expresses, as a standardized variate (mean zero and unit variance), the deviations of the current climatic balance (precipitation minus evapotranspiration potential) with respect to the long-term balance. The reference period for the calculation, in the SPEIbase, corresponds to the whole study period. Being a standardized variate means that the SPEI condition can be compared across space and time. Calculation of the evapotranspiration potential in SPEIbase is based on the FAO-56 Penman-Monteith method. Data type: float; units: z-values (standard deviations). No land pixels are assigned a value of 1.0x10^30. In some rare cases it was not possible to achieve a good fit to the log-logistic distribution, resulting in a NAN (not a number) value in the database. Dimensions of the dataset: lon = 720; lat = 360; time = 1356. Resolution of the dataset: lon = 0.5º; lat = 0.5º; time = 1 month. Created in R using the SPEI package (http://cran.r-project.org/web/packages/SPEI)., Global gridded dataset of the Standardized Precipitation-Evapotranspiration Index (SPEI) at time scales between 1 and 48 months.-- Spatial resolution of 0.5º lat/lon.-- This is an update of the SPEIbase v2.3 (http://hdl.handle.net/10261/104742).-- What’s new in version 2.4: 1) Data has been extended to the period 1901-2014 (it was 1901-2013 in v 2.3), based on the CRU TS3.23 dataset.-- For more details on the SPEI visit http://sac.csic.es/spei., Peer reviewed
Proyecto: //
DOI: http://hdl.handle.net/10261/128892
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128892
HANDLE: http://hdl.handle.net/10261/128892
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128892
PMID: http://hdl.handle.net/10261/128892
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128892
Ver en: http://hdl.handle.net/10261/128892
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128892
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128941
Dataset. 2016
FORECASTING LARGE-SCALE HABITAT SUITABILITY OF EUROPEAN BUSTARDS UNDER CLIMATE CHANGE: THE ROLE OF ENVIRONMENTAL AND GEOGRAPHIC VARIABLES
- Estrada, Alba
- Delgado, M. Paula
- Arroyo, Beatriz
- Traba, Juan
- Morales, Manuel B.
Distribution of the great and the little bustard in the study area that comprises the majority of Europe, North Africa and Southwest Asia according to Hagemeijer & Blair (1997), Eken & Magnin (2000), Alonso et al. (2005) and Palacin & Alonso (2009). Regarding climatic variables, raw temperature and precipitation data were extracted from WorldClim (http://www.worldclim.org/) according to the Climgen Statistical Downscaling for the ‘current’ period 1961-1990 and for the future periods 2050 and 2080, the latter periods according to the emission scenario A1B in three different general circulation models (GCMs): CGCM31, ECHAM5 and HADCM3. We calculated three bioclimatic variables: cumulative annual rainfall, temperature range between July and January, and the mean temperature during the reproductive period for both species, i.e. between April and July. We also obtained the mean slope of the UTM cell (derived from GLOBE et al. 1999) and the percentage of dry crops and pasturelands in each cell (obtained from the USGS Land Cover, http://edc2.usgs.gov/glcc/glcc.php). Additionally, we included the mean value of human population density (obtained from ORNL 2009)., Distribution of the great and the little bustard and values of environmental and geographic variables in each 50 km x 50 km UTM cell of the Western Palearctic., Peer reviewed
Proyecto: //
DOI: http://hdl.handle.net/10261/128941
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128941
HANDLE: http://hdl.handle.net/10261/128941
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128941
PMID: http://hdl.handle.net/10261/128941
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128941
Ver en: http://hdl.handle.net/10261/128941
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/128941
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/129512
Dataset. 2016
INTRA-SPECIFIC VARIATION OF FRUIT SIZE AND SHAPE IN COREMA ALBUM (ERICACEAE) ALONG A LATITUDINAL GRADIENT: FROM FRUITS TO POPULATIONS
- Larrinaga, Asier R.
- Guitián, Pablo
Sampling procedures: In September 1997, we haphazardly selected 15 fruit-bearing Corema females in each population. Minimum distance among selected plants was 5 m, covering an approximately along-seaside transect of more than 200 m. We collected 30 ripe fruits from each of the plants, one by one and from the whole canopy of the plant, ensuring we sampled fruits along the entire perimeter of the plant and at all possible heights. All fruits were measured in the field or few hours after collecting them. In September 1998, we repeated the same sampling procedure on 15 newly selected females per population., These data can be accessed at Digital.CSIC. URL: http://hdl.handle.net/10261/129512
Access and reuse conditions: This database and its components are subject to a Creative Commons Attribution-Noncommercial-ShareAlike International licence 4.0., Seven populations along the whole distributional range of Corema album: Praia Trece (A Coruña, Spain; 9.1484˚W, 43.1865˚N), Caminha (Viana do Castelo, Portugal; 8.8647˚W, 41.8633˚N), Marinha Grande (Leiría, Portugal; 9.0336˚W, 39.7613˚N), Peniche (Leiría, Portugal) 9.3491˚W, 39.3611˚N), Sao Vicente (Faro, Portugal; 8.9898˚W, 37.0255˚N) and Matalascañas (Huelva, Spain; 6.5929˚W, 37.0204˚N), in the Iberian Peninsula, and Manhenha (Illa de Pico, Portugal; 28,0447ºW, 38.4091ºN) in Açores., We aimed at quantifying fruit size and shape variability of Corema album at within-plant, among-plant, among-population and among-year levels. For two years, we measured fruit size and shape along the geographic range along Atlantic coast of Iberian Peninsula. Most variance concentrated on within- and among-individual levels for size, showing higher values for among-individual variation in fruit shape. While fruit size retained important variation among populations, this source of variance was negligible for fruit shape. This difference could arise from contrasting mechanical or developmental constraints. Despite the marked climatic differences along the latitudinal range of the species, latitude did not affect the ratio of within- to among- plant variation., Fruit_variation_Corema_album_BJLS_2016.xls : excel file containing the following sheets: - Variable Names: contains variable definition; - Corema: contains original data. Variables: Year, Site, Plant, Length, Diameter, Volume, cuberoot_Volume, Latitude_dd, SquareLat, No
Proyecto: //
DOI: http://hdl.handle.net/10261/129512
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/129512
HANDLE: http://hdl.handle.net/10261/129512
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/129512
PMID: http://hdl.handle.net/10261/129512
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/129512
Ver en: http://hdl.handle.net/10261/129512
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oai:digital.csic.es:10261/129512
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/130242
Dataset. 2016
FREQUENT COLONY ORPHANING TRIGGERS THE PRODUCTION OF REPLACEMENT QUEENS VIA WORKER THELYTOKY IN A DESERT-DWELLING ANT
- Amor, Fernando
- Ortega, Patrocinio
- Boulay, Raphaël
- Cerdá, Xim
Although related, Cataglyphis floricola and C. tartessica show very different responses to colony orphaning. In the laboratory, under queenless conditions, C. tartessica workers produced male offspring via arrhenotoky, while C. floricola workers produced female offspring, including new queens, via thelytoky. In the field, C. floricola colonies were more likely than C. tartessica colonies to be orphaned in the late spring. Worker thelytoky could have evolved in C. floricola as an adaptive response to the species’ significantly higher probability of queen loss., Spanish Ministry of Economy and Competitiveness and FEDER (projects CGL2012-36181 to XC and RB, CGL2015-65807-P to XC, RB and FA)., No
Proyecto: //
DOI: http://hdl.handle.net/10261/130242
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/130242
HANDLE: http://hdl.handle.net/10261/130242
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/130242
PMID: http://hdl.handle.net/10261/130242
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/130242
Ver en: http://hdl.handle.net/10261/130242
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oai:digital.csic.es:10261/130242
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/130769
Dataset. 2016
FLAWED CITATION PRACTICES FACILITATES THE UNSUBSTANTIATED PERCEPTION OF A GLOBAL TREND TOWARD INCREASED JELLYFISH BLOOMS [DATASET]
- Sanz-Martín, Marina
- Pitt, Kylie A.
- Condon, Robert H.
- Lucas, Cathy H.
- Novaes de Santana, Charles
- Duarte, Carlos M.
This data set compiles 159 papers that contain statements about jellyfish population trends or papers used to support these statements, from all available papers (n=225) published on jellyfish ecology between 1987 and April 2012 (prior to Brotz et al., 2012, the first global analysis of jellyfish populations). All these papers were collated through an exhaustive search on Google Scholar (GS) and Web of Knowledge (WOK). The search terms used were: “jellyfish” or “jellyfish blooms” or “ctenophore” or “gelatinous zooplankton”; “population” or “abundance” or “distribution”; “change” or “trend”; “increase” or “increasing” or “rise” or “rising”; “global” or “worldwide” or “regional” or “region”. Papers making statements that referenced other sources were defined as ‘citing papers’ and papers used to support these statements were ‘cited papers’ (continue reading the file Sanz-Martínetal_Dataset_Details.pdf)., This dataset compiles 159 papers that contain statements about jellyfish population trends or papers used to support these statements. Statements of the citing papers were classified into spatial categories and degrees of affirmation. Each citation has been evaluated adapting the method proposed by Todd et al. (2007). A network of citation has been produced (see Fig. 1) and the resulting specific properties of every paper (or node) are detailed in the dataset., No
Proyecto: //
DOI: http://hdl.handle.net/10261/130769
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/130769
HANDLE: http://hdl.handle.net/10261/130769
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/130769
PMID: http://hdl.handle.net/10261/130769
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/130769
Ver en: http://hdl.handle.net/10261/130769
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oai:digital.csic.es:10261/130769
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/131050
Dataset. 2016
ANTAGONISTIC RESULTS BETWEEN ANCESTRAL STATE RECONSTRUCTION ANALYSES
SUPPLEMENTARY DATA
- Vieites, David R.
- Ponti de la Iglesia, Raquel
- Arcones, Ángel
Supplementary Figures showing results for every Ancestral State Reconstruction analysis performed for discrete and continuous characters, This work was supported by the grant CGL2013-40924-P to David Vieites from the Ministerio de Economía y Competitividad, and a FPU predoctoral fellowship from the Ministerio de Educación to Raquel Ponti, No
Proyecto: MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2013-40924-P
DOI: http://hdl.handle.net/10261/131050
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/131050
HANDLE: http://hdl.handle.net/10261/131050
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/131050
PMID: http://hdl.handle.net/10261/131050
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/131050
Ver en: http://hdl.handle.net/10261/131050
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oai:digital.csic.es:10261/131050
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/133007
Dataset. 2016
DECORATION INCREASES THE CONSPICUOUSNESS OF RAPTOR NESTS [DATASET]
- Canal, David
- Mulero-Pázmány, Margarita
- Sergio, Fabrizio
- Negro, Juan J.
The dataset contains the results of the trials of nest detectability using 25 volunteers as "experimental conspecifics” to estimate the detectability of black kite nests to trespassers. The dataset include the ID of Volunteers; Id of the images; ID of the nest; Distance to the nest (measured in AGL and meters); Position of the UAV when taking the image (zenithal, lateral or approaching snapshots); Decoration of the nests (Decorated (1) vs. non-decorated (0)); Detection of the nest by the volunteer (Detected (1) vs. non-detected (0)); Time to detection (seconds); Detection_pair (coded as 1, if the images from the same position and both treatments were detected in a nest, or 0, in the opposite case) and nest dimensions: lenght, width and opening angles, defined as the three angles of unobstructed view of the sky (see main text for further details), In this study, we used UAS (Unmanned Aircraft Systems) technology to simulate the aerial perspective of trespassing, flying black kites, and assess whether decorated nests were more conspicuous than undecorated ones to a human observer. To this end, we flew at pre-determined distances from actual nests built by black kites a UAS, equipped with a digital high-resolution camera, and gathered images of the nests with and without an experimentally placed decoration. The images were later standardized using ad hoc prepared software and shown to volunteers through a standardized routine to determine whether detection rate varied according to nest decoration status and distance, Peer reviewed
Proyecto: //
DOI: http://hdl.handle.net/10261/133007
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/133007
HANDLE: http://hdl.handle.net/10261/133007
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/133007
PMID: http://hdl.handle.net/10261/133007
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/133007
Ver en: http://hdl.handle.net/10261/133007
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