The biogeographical status of Alnus crispa (Ait.) Pursch in sub-Arctic southern Greenland: Do pollen records indicate local populations during the past 1500 years?
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Phytogeographical studies of south-western Greenland suggest that Alnus crispa is not native to the far south of the island. Palynological investigations dating to the 1970s concluded that this was the case throughout the Holocene, with the regular occurrences of Alnus seen in pollen diagrams from this region explained as the result of long-distance transport of alder pollen from Canada. Recently, macrofossil evidence from an archaeological site in southern Greenland has emerged that indicates that alder was amongst the fuel resources available to the Norse settlers around AD 1000–1400. In light of this discovery, we present data from 13 pollen diagrams produced since 2008 to re-examine the past status of Alnus within southernmost Greenland over the last 1500 years. Only at one site with a very large pollen source area do Alnus pollen frequencies regularly exceed a threshold which may be interpreted as indicating a regional presence for the plant. This pattern is argued to be consistent with the presence of a small but variable regional population of the plant, perhaps restricted in its distribution to the inland district of Vatnahverfi.
KeywordsAlnus crispa Pollen Greenland Norse Eastern Settlement Pollen threshold values Biogeography
The Leverhulme Trust is thanked for financial support. We also thank the referees for their constructive comments that helped to improve the paper.
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Conflict of interest
The authors declare that they have no conflict of interest.
Research involving human participants and/or animals
This article does not contain any studies with human participants or animals performed by any of the authors.
Informed consent was obtained from all individual participants included in the study.
- Andersen ST (1970) The relative pollen productivity and pollen representation of North European trees, and correction factors for tree pollen spectra. Dan Geol Unders II 96:1–99Google Scholar
- Böcher TW, Holmen K, Jakobsen K (1968) The flora of Greenland. P. Hasse & Son, CopenhagenGoogle Scholar
- Broström A, Nielsen AB, Gaillard M-J, Hjelle K, Mazier F, Binney H, Bunting J, Fyfe R, Meltsov V, Poska A, Räsänen S, Soepboer W, von Stedingk H, Suutari H, Sugita S (2008) Pollen productivity estimates of key European plant taxa for quantitative reconstruction of past vegetation: a review. Veg Hist Archaeobot 17:461–478CrossRefGoogle Scholar
- Feilberg J (1984) A phytogeographical study of South Greenland. Vascular plants. Medd Grønl Biosci 15:15–69Google Scholar
- Fredskild B (1973) Studies in the vegetational history of Greenland. Medd Grønl 198:1–245Google Scholar
- Fredskild B (1983) The Holocene vegetational development of the Godthåbsfjord area, West Greenland. Medd Grønl Geosci 10:1–28Google Scholar
- Fredskild B (1996) A phytogeographical study of the vascular plants of West Greenland (62°20′–74°00′N). Medd Grønl Biosci 45:1–157Google Scholar
- Fredskild B, Ødum S (1990) The Greenland mountain birch zone, an introduction. Medd Grønl Biosci 33:3–7Google Scholar
- Grimm EC (1993) TILIA: a program for analysis and display. Illinois State Museum, SpringfieldGoogle Scholar
- Grimm EC (2015) TGView version 2.0.2. http://intra.museum.state.il.us/pub/grimm/. Accessed 5 Jan 2015
- Jannsen CR (1973) Local and regional pollen deposition. In: Birks HJB, West RG (eds) Quat plant ecology. Blackwell, London, pp 31–42Google Scholar
- Kelly M, Funder S (1974) The pollen stratigraphy of late Quaternary lake sediments of South-West Greenland. Grønl Geol Unders Rapp Nr 64:1–26Google Scholar
- Krogh KJ (1967) Viking Greenland. National Museum, CopenhagenGoogle Scholar
- Laegaard S (1971) In: Nørrevang A, Meyer TJ, Christensen S (eds) Danmarks natur 10: Grønland of Færøerne. Politikens Forlag, Copenhagen, pp 370–377Google Scholar
- Ledger PM (2013) Norse landnám and its impact on the vegetation of Vatnahverfi, Eastern Settlement, Greenland. Dissertation, University of AberdeenGoogle Scholar
- Ledger PM, Edwards KJ, Schofield JE (2014a) Vatnahverfi: a green and pleasant land? Palaeoecological reconstructions of environmental and land use change. J N Atl Spec 6:29–46Google Scholar
- Moe D, Odland A (1992) The influence of the temperature climate on the vertical distribution of Alnus incana (Betulaceae) through the Holocene in Norway. Acta Bot Fenn 144:35–49Google Scholar
- Ritchie JC (1987) Postglacial vegetation of Canada. Cambridge University Press, CambridgeGoogle Scholar
- Rousseau D-D, Schevin P, Ferrier J, Jolly D, Andreasen T, Ascanius SE, Hendriksen S-E, Poulsen U (2008) Long-distance pollen transport from North America to Greenland in spring. J Geophys Res 113:1–10Google Scholar
- Schofield JE, Edwards KJ, MacMullen A (2007) Modern pollen-vegetation relationships in subarctic southern Greenland and the interpretation of fossil pollen data from the Norse landnám. J Biogeogr 34:473–488Google Scholar
- Scoggan HJ (1978) The flora of Canada. Part 3—Dicotyledoneae (Saururaceae to Violaceae). National Museum of Natural Sciences, OttawaGoogle Scholar
- Sczepanek K, Tobolski K, Nalepka D (2004) Alnus Mill.—Alder. In: Ralska-Jasiewiczowa M, Latalowa M, Wasylikowa K, Tobolski K, Madeyska E, Wright Jr HE, Turner C (eds) Late Glacial and Holocene history of vegetation in Poland based on isopollen maps. W. Szafer Institute of Botany, Polish Academy of Sciences, Kraków, pp 47–55Google Scholar
- USDA NRCS (United States Department of Agriculture, Natural Resources Conservation Service) (2014) Plants database. http://plants.usda.gov/. Accessed 15 Dec 2014