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Pérez-Martínez, Carmen; Fernández-Moreno, David; Llodrà-LLabrés, Joana; Jiménez, Laura; Moreno, Emilio; Ramos-Rodríguez, Eloísa; Conde-Porcuna, José M (2023): Diatom abundance from sediment cores (2008-2011) from six lakes of Sierra Nevada Mountains (Spain) [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.961874

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Published: 2023-09-12 • DOI registered: 2023-10-11

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Abstract:
This dataset presents relative abundance data of subfossil diatoms obtained from sediment cores retrieved from six lakes at Sierra Nevada Mountains (Granada, Spain) during 2008 and 2011. The files show data over the past 180 years approximately. Sediment cores were taken from the deepest part of the lake by a slide-hammer gravity corer (Aquatic Research Instruments, USA), with a 6.9 cm inner diameter during the summer of 2011, except for Río Seco Lake core which was sampled in 2008. The cores were sectioned on-site into 0.25 cm thick layers for the upper sections of the cores and into 0.5 cm intervals for the remainder of the cores, except for Río Seco Lake core which was sectioned at 0.5 cm contiguous intervals for the entire core length. Sediment cores were dated using gamma spectrometry (DSPec, Ortec®) techniques by measuring activities of radioisotopes (210Pb, 214Bi and 137Cs) and sediment ages were estimated from unsupported 210Pb activities using the constant rate of supply (CRS) model. Diatom samples were processed by digesting sediment samples with a 50:50 mixture solution of H2SO4 and HNO3 and mounted onto slides with Naphrax®. For each sample, a minimum of 300 diatom valves were counted using a Leica microscope fitted with a 100× fluotar objective (N.A. = 1.4) and using differential interference contrast optics under oil-immersion at 1000× magnification. Diatoms were identified to the species level or lower using a selection of taxonomic sources and diatom counts were expressed as a percent abundance relative to the total number of diatom valves counted in each sedimentary interval.
Keyword(s):
Common Era; diatom communiy composition; Lake core; Sediment core; Sierra Nevada (Spain)
Related to:
Jiménez, Laura; Conde-Porcuna, José M; García-Alix, Antonio; Toney, Jaime L; Anderson, R Scott; Heiri, Oliver; Pérez-Martínez, Carmen (2019): Ecosystem Responses to Climate-Related Changes in a Mediterranean Alpine Environment Over the Last ~ 180 Years. Ecosystems, 22(3), 563-577, https://doi.org/10.1007/s10021-018-0286-5
Pérez-Martínez, Carmen; Conde-Porcuna, José M; Ramos-Rodríguez, Eloísa; Moreno, Emilio; Rühland, Kathleen M; Jeziorski, A; Smol, John P; García-Alix, Antonio; Heiri, Oliver; Corral Arredondo, E; Jiménez, L (2022): Paleolimnological indicators of global change. In: The landscape of Sierra Nevada: A unique laboratory of global processes. Zamora, R. & Oliva, M. (eds.). Springer, Cham., 279-291
Pérez-Martínez, Carmen; Rühland, Kathleen M; Smol, John P; Jones, Vivienne J; Conde-Porcuna, José M (2020): Long-term ecological changes in Mediterranean mountain lakes linked to recent climate change and Saharan dust deposition revealed by diatom analyses. Science of the Total Environment, 727, 138519, https://doi.org/10.1016/j.scitotenv.2020.138519
Funding:
Organismo Autónomo Parques Nacionales, grant/award no. 2403-S/2017: Lagos centinelas de cambio global en los Parques Nacionales: análisis multidisciplinar de los últimos 6000 años. (LACEN)
Spanish Ministry of Science, Innovation and Universities (MICINN), grant/award no. CGL2011-23483: Patrones temporales en la biogeoquímica y biota de las lagunas de Sierra Nevada: aproximación desde la Paleolimnología (BIOPAL)
Spanish Ministry of Science, Innovation and Universities (MICINN), grant/award no. LIFEWATCH-2019-10-UGR-4: SMART_ECOMOUNTAINS: Thematic Center on Mountain Ecosystem & Remote sensing, Deep learning-AI e-Services University of Granada-Sierra Nevada (Smart EcoMountains)
Coverage:
Median Latitude: 37.048712 * Median Longitude: -3.349189 * South-bound Latitude: 37.027073 * West-bound Longitude: -3.418602 * North-bound Latitude: 37.059761 * East-bound Longitude: -3.299767
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
6 datasets

Download Data

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Datasets listed in this bundled publication

  1. Pérez-Martínez, C; Fernández-Moreno, D; Llodrà-LLabrés, J et al. (2023): Diatom abundance from sediment core of lake Aguas Verdes, Sierra Nevada, Spain. https://doi.org/10.1594/PANGAEA.961868
  2. Pérez-Martínez, C; Fernández-Moreno, D; Llodrà-LLabrés, J et al. (2023): Diatom abundance from sediment core of lake Borreguil, Sierra Nevada, Spain. https://doi.org/10.1594/PANGAEA.961869
  3. Pérez-Martínez, C; Fernández-Moreno, D; Llodrà-LLabrés, J et al. (2023): Diatom abundance from sediment core of lake Cuadrada, Sierra Nevada, Spain. https://doi.org/10.1594/PANGAEA.961870
  4. Pérez-Martínez, C; Fernández-Moreno, D; Llodrà-LLabrés, J et al. (2023): Diatom abundance from sediment core of lake Mosca, Sierra Nevada, Spain. https://doi.org/10.1594/PANGAEA.961871
  5. Pérez-Martínez, C; Fernández-Moreno, D; Llodrà-LLabrés, J et al. (2023): Diatom abundance from sediment core of lake Río Seco, Sierra Nevada, Spain. https://doi.org/10.1594/PANGAEA.961872
  6. Pérez-Martínez, C; Fernández-Moreno, D; Llodrà-LLabrés, J et al. (2023): Diatom abundance from sediment core of lake Rio Seco Superior, Sierra Nevada, Spain. https://doi.org/10.1594/PANGAEA.961873