de.pangaea.dataset988851 und dataset PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact 2026-04-30T20:50:27Z https://doi.pangaea.de/10.1594/PANGAEA.988851 2026-02-24T06:22:21 publication https://doi.org/10.1594/PANGAEA.988851 Watts, Aspen

aspenrynwatts@gmail.com

https://orcid.org/0009-0002-3691-3701 information author Engels, Stefan

s.engels@bbk.ac.uk

https://orcid.org/0000-0002-2078-0361 information author Martín-Puertas, Celia

celia.martinpuertas@rhul.ac.uk

https://orcid.org/0000-0002-1349-5669 information author Bennion, Helen https://orcid.org/0000-0003-0125-9308 information author Boyle, John

jfb@liverpool.ac.uk

author Moyle, Madeleine

maddy.moyle@liverpool.ac.uk

author PANGAEA

info@pangaea.de

https://www.pangaea.de/ information publisher tableDigital This dataset provides palaeoecological data for 5 West Midlands Meres (UK). The meres that were sampled are Aqualate Mere, Comber Mere, Cop Mere, Crose Mere, and White Mere. Chironomid counts are presented against depth (cm) and age (year CE). The data provides information on the changes in the lake ecosystem, and has been used to identify the effects of external drivers on biodiversity parameters, with a focus on the effects of eutrophication of shallow meres on alpha and beta diversity dynamics of the chironomid fauna. Sediment cores were retrieved from the respective lakes using gravity corers deployed from a boat, in April 2023. The gravity cores were sampled at (a) the deepest end (30.5-38.5 cm), (b) 10.5 cm, and (c) consecutive 1-cm-thick samples between 0-3 cm core depth. A total of 25 samples from the sediment sequences were treated with warm KOH (10%) to de-flocculate the material, and subsequently rinsed over a 100 µm mesh. Chironomid head capsules (HCs) were picked from the residue using a Bogorov sorting tray, and mounted onto microscope slides using Euparal mounting medium. HCs were identified using Brooks et al., (2007, doi:10.1007/s10933-007-9191-1). Cricotopus (Isocladius) intersectus-type and Cricotopus (Isocladius) laricomalis-type were combined into a single group (C. intersectus-type sensu lato (s.l.)), as they are similar in appearance and ecological role (Brooks et al., 2007, doi:10.1007/s10933-007-9191-1). completed Watts, Aspen

aspenrynwatts@gmail.com

https://orcid.org/0009-0002-3691-3701 information principalInvestigator Anthropogenic impact Chironomids Palaeoecology UK theme 1995-01-01 creation PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation -2.87216 -2.29557 52.78109 52.99461 2023-04-09T09:00:00 2023-04-14T18:00:00 0.01 0.39 Event label thematicClassification Latitude of event thematicClassification Longitude of event thematicClassification Date/Time of event thematicClassification Date/Time of event 2 thematicClassification Elevation of event physicalMeasurement m m Comment of event thematicClassification Site thematicClassification DEPTH, sediment/rock physicalMeasurement m m Age physicalMeasurement a AD/CE a AD/CE AGE physicalMeasurement ka BP ka BP Chironomini larvula physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; 1st instar # # Chironomus anthracinus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Chironomus plumosus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Cladopelma lateralis-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Cryptochironomus physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Demicryptochironomus physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Dicrotendipes nervosus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Einfeldia dissidens-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Endochironomus albipennis-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Endochironomus impar-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Endochironomus tendens-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Glyptotendipes barbipes-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Glyptotendipes pallens-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Lauterborniella physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Microtendipes pedellus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Parachironomus varus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Parachironomus vitiosus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Polypedilum nubeculosum-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Polypedilum sordens-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Stictochironomus physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Chaetocladius-type B physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Corynoneura edwardsi-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Cricotopus intersectus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; Cricotopus (isocladius) intersectus-type s.l. # # Cricotopus trifasciatus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; Cricotopus (Isocladius) trifasciatus-type # # Cricotopus bicinctus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Cricotopus cylindraceus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Epoicocladius physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Eukiefferiella claripennis-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Georthocladius physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Heterotrissocladius maeaeri-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Hydrobaenus johannseni-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Limnophyes physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Oliveridia physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Orthocladius-type S physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Parakiefferiella bathophila-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Psectrocladius barbimanus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; Psectrocladius (Psectrocladius) barbimanus-type # # Psectrocladius sordidellus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; Psectrocladius (Psectrocladius) sordidellus-type # # Psectrocladius barbatipes-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; Psectrocladius (Mesopsectrocladius) barbatipes-type # # Ablabesmyia physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Procladius physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Cladotanytarsus mancus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Micropsectra radialis-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Stempellinella physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Tanytarsus chinyensis-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Tanytarsus lugens-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Tanytarsus mendax-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.988851?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: AQUA23-1-GC * LATITUDE: 52.781090 * LONGITUDE: -2.338760 * DATE/TIME START: 2023-04-11T09:00:00 * DATE/TIME END: 2023-04-11T18:00:00 * ELEVATION: 66.4 m * LAKE WATER DEPTH: 1.6 m * LOCATION: Hatchmere, Cheshire, United Kingdom * METHOD/DEVICE: Gravity corer 38.5 cm lake sediment sequence retrieved using a gravity corer deployed from boat. Gravity corer, according to Boyle (1995). 2023-04-11T09:00:00 EVENT LABEL: COMB23-2-GC * LATITUDE: 52.994610 * LONGITUDE: -2.612500 * DATE/TIME START: 2023-04-12T09:00:00 * DATE/TIME END: 2023-04-12T18:00:00 * ELEVATION: 83.6 m * LAKE WATER DEPTH: 11.8 m * LOCATION: Hatchmere, Cheshire, United Kingdom * METHOD/DEVICE: Gravity corer 30.5 cm lake sediment sequence retrieved using a gravity corer deployed from boat. Gravity corer, according to Boyle (1995). 2023-04-12T09:00:00 EVENT LABEL: COP23-1-GC * LATITUDE: 52.862780 * LONGITUDE: -2.295570 * DATE/TIME START: 2023-04-09T09:00:00 * DATE/TIME END: 2023-04-09T18:00:00 * ELEVATION: 103.0 m * LAKE WATER DEPTH: 3.9 m * LOCATION: Hatchmere, Cheshire, United Kingdom * METHOD/DEVICE: Gravity corer 32.5 cm lake sediment sequence retrieved using a gravity corer deployed from boat. Gravity corer, according to Boyle (1995). 2023-04-09T09:00:00 EVENT LABEL: CRO23-1-GC * LATITUDE: 52.869270 * LONGITUDE: -2.847370 * DATE/TIME START: 2023-04-14T09:00:00 * DATE/TIME END: 2023-04-14T18:00:00 * ELEVATION: 88.0 m * LAKE WATER DEPTH: 9.0 m * LOCATION: Hatchmere, Cheshire, United Kingdom * METHOD/DEVICE: Gravity corer 33.5 cm lake sediment sequence retrieved using a gravity corer deployed from boat. Gravity corer, according to Boyle (1995). 2023-04-14T09:00:00 EVENT LABEL: WM23-1-GC * LATITUDE: 52.890130 * LONGITUDE: -2.872160 * DATE/TIME START: 2023-04-10T09:00:00 * DATE/TIME END: 2023-04-10T18:00:00 * ELEVATION: 100.5 m * LAKE WATER DEPTH: 13.0 m * LOCATION: Hatchmere, Cheshire, United Kingdom * METHOD/DEVICE: Gravity corer 38.5 cm lake sediment sequence retrieved using a gravity corer deployed from boat. Gravity corer, according to Boyle (1995). 2023-04-10T09:00:00 Related to 2025-01-01 publication Watts, Aspen

aspenrynwatts@gmail.com

https://orcid.org/0009-0002-3691-3701 information author documentHardcopy Birkbeck, University of London References 1995-01-01 publication https://doi.org/10.1007/BF00678113 Boyle, J F https://orcid.org/0000-0002-1172-1079 information author documentDigital Journal of Paleolimnology 13(1) 85-87 References 2008-01-01 publication https://doi.org/10.1007/s10933-007-9191-1 Brooks, Stephen J author Langdon, Pete G author Heiri, Oliver

oliver.heiri@unibas.ch

https://orcid.org/0000-0002-3957-5835 information author documentDigital In: Brodersen, Klaus Peter (Ed.), Technical Guide No. 10, Quaternary Research Association, London,, Journal of Paleolimnology 40(2) 751-753