Unbekannt
PANGAEA
In:
Supplement to: Bauch, Dorothea; Darling, Kate F; Simstich, Johannes; Bauch, Henning A; Erlenkeuser, Helmut; Kroon, Dick (2003): Palaeoceanographic implications of genetic variation in living North Atlantic Neogloboquadrina pachyderma. Nature, 424(6946), 299-303, https://doi.org/10.1038/nature01778
Publikationsdatum:
2024-02-02
Beschreibung:
The shells of the planktonic foraminifer Neogloboquadrina pachyderma have become a classical tool for reconstructing glacial-interglacial climate conditions in the North Atlantic Ocean. Palaeoceanographers utilize its left- and right-coiling variants, which exhibit a distinctive reciprocal temperature and water mass related shift in faunal abundance both at present and in late Quaternary sediments. Recently discovered cryptic genetic diversity in planktonic foraminifers now poses significant questions for these studies. Here we report genetic evidence demonstrating that the apparent 'single species' shell-based records of right-coiling N. pachyderma used in palaeoceanographic reconstructions contain an alternation in species as environmental factors change. This is reflected in a species-dependent incremental shift in right-coiling N. pachyderma shell calcite d18O between the Last Glacial Maximum and full Holocene conditions. Guided by the percentage dextral coiling ratio, our findings enhance the use of d18O records of right-coiling N. pachyderma for future study. They also highlight the need to genetically investigate other important morphospecies to refine their accuracy and reliability as palaeoceanographic proxies.
Schlagwort(e):
104-1; 111-2; 114-1; 117-1; 120-1; 271; 61-1; Aegir Ridge, Norwegian-Greenland Sea; Arctic Ocean; ARK-I/3; ARK-II/4; ARK-II/5; ARK-III/3; ARK-IX/3; ARK-X/1; ARK-X/2; Atlantic Ocean; BS88/6_10B; BS88/6_4; BS88/6_8; CTD/Rosette; CTD-RO; Denmark Strait; East Greenland Sea; Fram Strait; Giant box corer; GIK16301-1; GIK16302-1; GIK16304-1; GIK16305-1; GIK16306-3; GIK21291-3 PS07/581; GIK23000-2; GIK23008-1; GIK23016-1; GIK23019-1; GIK23022-1; GIK23027-1; GIK23037-1; GIK23038-1; GIK23039-1; GIK23041-1; GIK23042-1; GIK23043-1; GIK23055-1; GIK23058-1; GIK23059-1; GIK23060-2; GIK23062-2; GIK23063-1; GIK23065-1; GIK23066-1; GIK23068-1; GIK23071-1; GIK23074-3; GIK23126-1 PS03/126; GIK23138-1 PS03/138; GIK23142-1 PS03/142; GIK23144-1 PS03/144; GIK23227-1 PS05/412; GIK23228-1 PS05/413; GIK23229-1 PS05/414; GIK23230-1 PS05/416; GIK23231-1 PS05/417; GIK23232-1 PS05/418; GIK23233-1 PS05/420; GIK23235-1 PS05/422; GIK23237-1 PS05/425; GIK23238-1 PS05/426; GIK23239-1 PS05/427; GIK23240-1 PS05/428; GIK23241-2 PS05/429; GIK23242-1 PS05/430; GIK23243-1 PS05/431; GIK23243-2 PS05/431; GIK23244-1 PS05/449; GIK23246-2 PS05/451; GIK23247-2 PS05/452; GIK23249-1 PS05/454; GIK23254-3; GIK23258-3; GIK23259-3; GIK23260-2; GIK23261-2; GIK23262-2; GIK23270-2; GIK23277-1; GIK23294-3; GIK23312-2; GIK23323-1; GIK23343-4; GIK23347-4; GIK23348-2; GIK23349-4; GIK23350-3; GIK23351-4; GIK23352-2; GIK23353-2; GIK23354-4; GIK23400-3; GIK23411-5; GIK23414-6; GIK23415-8; GIK23416-5; GIK23418-5; GIK23424-3; GIK23506-1; GIK23507-1; GIK23508-1; GIK23509-1; GIK23512-2; GIK23514-3; GIK23515-4; GIK23516-3; GIK23517-3; GIK23518-2; GIK23519-4; GIK23522-2; GIK23523-3; GIK23524-2; GIK23525-3; GIK23526-3; GIK23527-3; GIK23528-3; GIK23536-1; GIK23537-1; GIK23538-1; GIK23539-1; GIK23540-2; GIK23541-1; GIK23542-1; GIK23543-1; GIK23545-1; GIK23547-4; GIK23549-9; GIK23550-10; GIK23552-8; GIK23554-9; GKG; Global Environmental Change: The Northern North Atlantic; Gravity corer (Kiel type); Greenland Sea; Iceland Sea; KOL; Kong-Oskar-Fjord, East Greenland; M107-1; M17/1; M17/2; M2/1; M2/2; M21/4; M23414; M26/3; M36/3; M7/2; M7/3; M7/4; M7/5; Meteor (1986); MSN; MUC; MULT; MultiCorer; Multiple investigations; Multiple opening/closing net; Northeast Water Polynya; Norway Slope; Norwegian-Greenland Sea; Norwegian Sea; P284-2; P309-1; P317; Piston corer (Kiel type); Polarstern; POS100b; POS119; POS210/2; Poseidon; PS03; PS05; PS07; PS1050-1; PS1060-1; PS1064-1; PS1065-1; PS1227-1; PS1228-1; PS1229-1; PS1230-1; PS1231-1; PS1232-1; PS1233-1; PS1235-1; PS1237-1; PS1238-1; PS1239-1; PS1240-1; PS1241-2; PS1242-1; PS1243-1; PS1243-2; PS1244-1; PS1246-2; PS1247-2; PS1249-1; PS1291-3; PS26/217-1; PS26/258-1; PS26/264-1; PS26/271; PS2613-1; PS2616-7; PS2627-5; PS2638-6; PS2641-5; PS2644-2; PS2645-5; PS2646-2; PS2647-5; PS2656-2; PS26 NEW; PS31; PS31/002; PS31/054; PS31/113; PS31/116; PS31/135; PS31/150; PS31/154; PS31/160; PS31/161; PS31/162; PS31/163; PS31/182; SFB313; SL; van Veen Grab; VGRAB; Voring Plateau
Materialart:
Dataset
Format:
application/zip, 5 datasets
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