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  • 1
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    Unknown
    Pollen and macro-charcoal analysis of Lake Relem sediment core, northern Patagonia (2020)
    PANGAEA
    Details
    Publication Date: 2023-01-30
    Description: We present palaeoecological records of pollen and macro-charcoal particles used to reconstruct the vegetation and fire history of the Araucaria araucana forest close to the steppe. We obtained the core from a small lake (〈1ha, surface) located in 38°58'39"S; 71° 4'51"W, at 1268 m a.s.l. To process the pollen and macro-charcoal from the sediment samples, we followed Bennett and Willis (2001), and Withlock and Larsen (2001) protocols. We took 176 pollen samples of 0.5 cm3 along the core, avoiding tephra layers. The samples were not sieved. We counted at least 400 pollen grains per sample using a light microscope at 400-1000x. We extracted sub-samples of one cubic centimetre contiguously every centimetre and sieved in a 125 µm mesh. We counted the charcoal particles in a stereomicroscope.
    Keywords: Araucaria araucana; endangered species; Fire disturbance regime; forest-steppe ecotone; Livingstone piston sampler; LPS; Patagonia; Patagonian Andes; Relem; Vegetation dynamics
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Unknown
    Macro-charcoal analysis of Lake Relem sediment core, northern Patagonia (2020)
    PANGAEA
    Details
    Publication Date: 2023-04-14
    Description: We extracted sub-samples of one cubic centimetre contiguously every centimetre of the sediment core and sieved them in a 125 µm mesh. We counted the charcoal particles in a stereomicroscope.
    Keywords: AGE; Age, maximum/old; Age, minimum/young; Araucaria araucana; Calculated; Counting, microscope; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; endangered species; Fire disturbance regime; forest-steppe ecotone; Livingstone piston sampler; LPS; Macrocharcoal; Patagonia; Patagonian Andes; Relem; Vegetation dynamics; Volume, dry sample
    Type: Dataset
    Format: text/tab-separated-values, 2607 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Unknown
    Pollen composition of Lake Relem sediment core, northern Patagonia (2020)
    PANGAEA
    Details
    Publication Date: 2024-03-06
    Description: To process the pollen and macro-charcoal from the sediment samples, we followed Bennett and Willis (2002), and Withlock and Larsen (2002) protocols. We took 176 pollen samples of 0.5 cm³ along the core, avoiding tephra layers. The samples were not sieved. At least 400 pollen grains per sample were counted using a light microscope at 400-1000x.
    Keywords: Acaena; Adesmia; Alnus glutinosa; Alonsoa; Amaranthaceae; Apiaceae undifferentiated; Araucaria araucana; Aristotelia chilensis; Austrocedrus chilensis; Azara; Azorella; Balbisia; Brassicaceae; Caryophyllaceae; cf. Buddleja; cf. Cacabus; cf. Cryptocarya; cf. Diposis; cf. Glandularia; cf. Glimus radiata; cf. Gomphrena; cf. Hymenophyllum; cf. Laurelia; cf. Lilaea; cf. Loasa; cf. Loranthaceae; cf. Persea; cf. Porlieria; cf. Schyzantus; cf. Tropaeolum; Cichorioideae; Colliguaja; Counting, palynology; Cyperaceae; DEPTH, sediment/rock; Discaria; Drimys winteri; Embothrium coccineum; endangered species; Ephedra; Equinideae; Eryngium; Escallonia; Eucryphia; Euphorbiaceae; Fabaceae; Fire disturbance regime; forest-steppe ecotone; Fragaria; Fuchsia; Galium-type; Gaultheria; Gentianaceae; Gunnera; Hydrangea; Iridaceae/Liliaceae; Lathyrus; Livingstone piston sampler; Lomatia hirsuta; Lophosoria; LPS; Lycopodium cf. magellanicum; Maytenus; Misodendrum; Muehlenbeckia; Mulinum; Mutisia; Myrtaceae; Nassauvia; Nothofagus dombeyi-type; Nothofagus obliqua-type; Patagonia; Patagonian Andes; Peumus boldo; Pinus; Plantago lanceolata; Plumbaginaceae; Poaceae; Podocarpus; Polygonaceae; Polypodium feuillei; Prumnopitys andina; Pteridophyta, monolete; Pteridophyta, monolete indeterminata; Pteridophyta, trilete indeterminata; Quinchamalium chilensis; Relem; Ribes; Rumex acetosella; Sanicula; Saxegothaea conspicua; Schinus patagonicus; Solanaceae; Spergularia-type; Tetilla; Urticaceae; Valeriana; Vegetation dynamics; Verbenaceae; Vicia; Viola cf. volcanica; Viviania; Wahlenbergia linarioides; Weinmannia trichosperma
    Type: Dataset
    Format: text/tab-separated-values, 17600 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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