| Popis: |
A 2.6-m-thick subfossil peat deposit, composed entirely of the arctic moss Aplodon wormskioldii, is described from the Carey Islands, northwestern Greenland (76°44′ N, 73°13′ W). Radiocarbon dates indicate that the peat began forming approximately 6500 years ago and stopped forming some 4500 to 4000 years ago; thus, its growth coincided with the postglacial warm period (Hypsithermal interval). The present-day habitat of A. wormskioldii, on dung or otherwise enriched substrates, is difficult to reconcile with its persistence and abundance at a specific site in the high arctic for over two millenia. |
