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Pérez-Martínez, Carmen; Ramos-Rodríguez, Eloísa; Conde-Porcuna, José M; Moreno, Emilio; Llodrà-LLabrés, Joana; Jiménez, Laura (2024): Cladocera abundance from sediment cores (2008-2011) from six lakes of Sierra Nevada Mountains (Spain) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.964278

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Abstract:
This dataset presents relative abundance data of subfossil cladoceran remains 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. Cladoceran samples were processed by heating them in 10% KOH and sieved through a 38 µm mesh. The samples were mounted onto microscope slides using glycerol gelatin dyed with safranin. A minimum of 200 remains were identified and enumerated from each sediment interval under a light microscope at 200x magnification.
Related to:
Burillo, Javier P; Jiménez, Laura; Pérez-Martínez, Carmen (2019): Identifying invasive Daphnia species by morphological analysis of postabdominal claws in Sierra Nevada alpine lakes. Journal of Paleolimnology, 62(2), 121-135, https://doi.org/10.1007/s10933-019-00078-0
Conde-Porcuna, José M; Veiga, Jesús; Moreno, Emilio; Jiménez, Laura; Ramos-Rodríguez, Eloísa; Pérez-Martínez, Carmen (2021): Spatiotemporal genetic structure in the Daphnia pulex complex from Sierra Nevada lakes (Spain): reproductive mode and first record of North American D. cf. pulex in European alpine lakes. Journal of Plankton Research, 43(3), 380-395, https://doi.org/10.1093/plankt/fbab024
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
Jiménez, Laura; Rühland, Kathleen M; Jeziorski, A; Smol, John P; Pérez-Martínez, Carmen (2018): Climate change and Saharan dust drive recent cladoceran and primary production changes in remote alpine lakes of Sierra Nevada, Spain. Global Change Biology, 24(1), https://doi.org/10.1111/gcb.13878
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
Funding:
Ministerio de Ciencia e Innovación (MICINN), grant/award no. CGL2011-23483: Patrones temporales en la biogeoquímica y biota de las lagunas de Sierra Nevada: aproximación desde la Paleolimnología (BIOPAL)
Ministerio de Ciencia e Innovación (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)
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)
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
Size:
6 datasets

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