Abstract
Populations of both native higher Antarctic plants, Deschampsia antarctica and Colobanthus quitensis, increased during the last decades. However, for D. antarctica, previous population studies on the South Shetland Islands and the Antarctic Peninsula have been too sporadic, patchy, and methodologically different to allow general conclusions. Our aim was to compare sites with D. antarctica along a north–south latitudinal transect with an integral census method to assess the possible impact of climatic change on grass population dynamics. During two summer seasons (2009–2010), plant populations were censed on Fildes and Coppermine Peninsula and several localities on the west coast of the Antarctic Peninsula. Largest plant populations were found on Fildes Peninsula with vegetation cover (VC) of 44–46%. Six out of eleven stands of D. antarctica on Coppermine Peninsula were new records, with increasing plant number and VC (0.1–22%). In the Antarctic Peninsula, contrarily to our expectation, only at Forbes Point, D. antarctica VC was relatively high (ca. 2%) and a new stand of C. quitensis was found. At three previously reported sites, plants had disappeared. Our monitoring confirms that northern D. antarctica populations are expanding, but that this expansion is not continuous along the Antarctic Peninsula and inconsistent with the gradient of relative temperature increase in north–south direction. We suggest that other abiotic and biotic factors are influencing the colonization and expansion of vascular plants in this particular ecosystem.
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References
ADD Consortium (2004) Antarctic digital database (http://www.add.scar.org). Online topographic database of Antarctica. Cambridge, Scientific Committee on Antarctic Research (http://add.scar.org:8080/add)
Bracegirdle TJ, Connolley WM, Turner J (2008) Antarctic climate change over the twenty first century. J Geophys Res 113:D03103. doi:10.1029/2007JD008933
Callaway RM (2007) Positive interactions and interdependence in plant communities. Springer, Berlin
Cannone N (2004) Minimum area assessment and different sampling approaches for the study of vegetation communities in Antarctica. Antarct Sci 16:157–164
Casanova-Katny MA, Cavieres L (2011) Antarctic moss carpets facilitate growth of Deschampsia antarctica, but not its survival. Oecologia (submitted)
Casaretto JA, Corcuera LJ, Serey I, Zúñiga G (1994) Size structure of tussocks of a population of Deschampsia antarctica Desv. in Robert Island, Maritime Antarctic. Ser Cient INACH 44:61–66
Convey P, Smith RIL (2006) Responses of terrestrial Antarctic ecosystems to climate change. Plant Ecol 182:1–10
Cook AJ, Fox AJ, Vaughan DG, Ferrigno JG (2005) Retreating glacier fronts on the Antarctic Peninsula over the past half-century. Science 308:541–544
Day TA, Ruhland CT, Grobe CW, Xiong F (1999) Growth and reproduction of Antarctic vascular plants in response to warming and UV radiation reductions in the field. Oecologia 119:24–35
Day TA, Ruhland CT, Xiong FS (2008) Warming increases aboveground plant biomass and C stocks in vascular-plant dominated Antarctic tundra. Glob Change Biol 14:1827–1843
Day TA, Ruhland CT, Strauss SL, Park JH, Krieg ML, Krna MA, Bryant DM (2009) Response of plants and the dominant microarthropod, Cryptopygus antarcticus, to warming and contrasting precipitation regimes in Antarctic tundra. Glob Change Biol 15:1640–1651
Fowbert JA, Smith RIL (1994) Rapid population increases in native vascular plants in the Argentine Islands, Antarctic Peninsula. Arctic Alpine Res 26:290–296
Gebauer A, Peter HU, Kaiser M (1987) Floristisch-ökologische Untersuchungen in der Antarktis-dargestellt am Beispiel der Verbreitung von Deschampsia antarctica DESV. im Bereich von Fildes Peninsula/King George Island (South Shetland Islands). Wissenschaftliche Zeitschrift der Friedrich Schiller-Universitat Jena, Naturwissenschaftliche Reihe 36(3):505–515
Gerighausen U, Bräutigam K, Mustafa O, Peter HU (2003) Expansion of vascular plants on an Antarctic island—a consequence of climate change? In: Huiskes AHL, Gieskes WWC, Rozema J, Schorno RML, van der Vies SM, Wolf WJ (eds) Antarctic biology in a global context. Backhuys, Leiden, pp 79–83
Greene DM, Holtom A (1971) Studies in Colobanthus quitensis (Kunth) Bartl. and Deschampsia antarctica Desv. III. Distribution, habitats and performance in the Antarctic botanical zone. Brit Antarct Surv B 26:1–29
Grobe CW, Ruhland CT, Day TA (1997) A new population of Colobanthus quitensis near Arthur Harbor, Antarctica: correlating recruitment with warmer summer temperatures. Arctic Alpine Res 29:217–221
Hansen J, Ruedy R, Glascoe J, Sato M (1999) GISS analysis of surface temperature change. J Geophys Res 104:30997–31022
Hattersley-Smith G (1991) The history of place-names in the British Antarctic Territory. British Antarctic Survey, Cambridge
Holderegger R, Stehlik I, Smith RIL, Abbott RJ (2003) Populations of Antarctic hairgrass (Deschampsia antarctica) show low genetic diversity. Arct Antarct Alp Res 35:214–217
Komárková V, Poncet S, Poncet J (1985) Two native Antarctic vascular plants, Deschampsia antarctica and Colobanthus quitensis: a new southernmost locality and other localities in the Antarctic peninsula area. Arctic Alpine Res 17:401–416
Komárková V, Poncet S, Poncet J (1990) Additional and revisited localities of vascular plants Deschampsia antarctica Desv. and Colobathus quitensis (Kunth) Bartl. in the Antarctic peninsula area. Arctic Alpine Res 22:108–113
Krna MA, Day TA, Ruhland CT (2009) Effects of neighboring plants on the growth and reproduction of Deschampsia antarctica in Antarctic tundra. Polar Biol 32:1487–1494
Lindsay DC (1971) Vegetation of the South Shetland Islands. Brit Antarct Surv B 25:59–83
Liu H, Jezek K, Li B, Zhao Z (2001) Radarsat Antarctic Mapping Project digital elevation model version 2. National Snow and ice data center. Digital media, Boulder
Longton RE (1967) Vegetation in the maritime Antarctic. Philos T Roy Soc B 252:213–235
Longton RE (1979) Vegetation ecology and classification in the Antarctic Zone. Can J Botany 57:2264–2278
Longton RE, Holdgate MW (1967) Temperature relationships of Antarctic vegetation. In: Smith JE (organ.) A discussion on the terrestrial Antarctic ecosystem. Philos T Roy Soc B 252:323–337
McGraw JB, Day TA (1997) Size and characteristics of a natural seed bank in Antarctica. Arctic Alpine Res 29:213–216
Monaghan AJ, Bromwich DH, Fogt RL, Wang S-H, Mayewski PA, Dixon DA, Ekaykin A, Frezzotti M, Goodwin I, Isaksson E, Kaspari SD, Morgan VI, Oerter H, van Ommen TD, van der Veen CJ, Wen J (2006) Insignificant change in Antarctic snowfall since the international geophysical year. Science 313:827–831
Moore DM (1983) Flora of Tierra del Fuego. Anthony Nelson, Shropshire
Parnikoza I, Convey P, Dykyy I, Trokhymets V, Milinevsky G, Tyschenko O, Inozemtseva D, Kozeretska I (2009) Current status of the Antarctic herb tundra formation in the central Argentine Islands. Glob Change Biol 15:1685–1693
Peter HU, Büßer C, Mustafa O, Pfeiffer S (2007) Risk assessment for the Fildes Peninsula and Ardley Island and the development of management plans for designation as Antarctic specially protected or managed areas: Forschungsbericht 203 13 124, Umweltbundesamt—Texte, Dessau, 484/491 S
Smith RIL (1990) Signy Island as a paradigm of biological and environmental change in Antarctic terrestrial ecosystems. In: Kerry KR, Hempel G (eds) Antarctic ecosystems. Ecological change and conservation. Springer, Berlin, pp 32–50
Smith RIL (1994) Vascular plants as bioindicators of regional warming in Antarctica. Oecologia 99:322–328
Smith RIL (2003) The enigma of Colobanthus quitensis and Deschampsia antarctica in Antarctica. In: Huiskes AHL, Gieskes WWC, Rozema J, Schorno RML, van der Vies SM, Wolf WJ (eds) Antarctic biology in a global context. Backhuys, Leiden, pp 234–239
Steig EJ, Schneider DP, Rutherford SD, Mann ME, Comiso JC, Shindell DT (2009) Warming of the Antarctic ice-sheet surface since the 1957 international geophysical year. Nature 457:459–462
Thomas ER, Marshall GJ, McConnell JR (2008) A doubling in snow accumulation in the western Antarctic Peninsula since 1850. Geophys Res Lett 35:L01706. doi:10.1029/2007GL032529
Turner J, Overland J (2009) Contrasting climate change in the two polar regions. Polar Res 28:146–164
Turner J, Colwell SR, Harangozo SA (1997) Variability of precipitation over the coastal western Antarctic Peninsula from synoptic observations. J Geophys Res 102:13999–14007
Turner J, Colwell SR, Marshall GJ, Lachlan-Cope TA, Carleton AM, Jones PD, Lagun V, Reid PA, Iagovkina S (2005) Antarctic climate change during the last 50 years. Int J Climatol 25:279–294
Turner J, Bindschadler RA, Convey P, Di Prisco G, Fahrbach E, Gutt J, Hodgson DA, Mayewski PA, Summerhayes CP (eds) (2009) Antarctic climate change and the environment. SCAR, Cambridge
Walther GR, Post E, Convey P, Menzel A, Parmesan C, Beebee TJC, Fromentin JM, Hoegh-Guldberg O, Bairlein F (2002) Ecological responses to recent climate change. Nature 416:389–395
Acknowledgments
We thank INACH and staff of Julio Escudero Scientific Station for the logistic facilities offered during the ECA (45th–46th Antarctic Scientific Expedition) of 2009 and 2010. Many thanks also to the staff of the Chilean station Gabriel González Videla, especially the crew of 2009/2010 for supporting the exploration of Paradise Harbour sites; Dr. Jorge Carrasco of the Chilean Meteorological Office for providing the climatic data; to bryologists Juan Larraín Benoit and Gloria Gallegos–Haro of University of Concepción for determining the mosses species. We also thank Dr. Götz Palfner, University of Concepción, for his critical suggestions and revision of the English text. We thank the effort of the two referees who helped us to substantially improve the manuscript before publication. This study was done under the project INACH T0307.
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This article is an invited contribution on Global Tipping Points (Global Change and Antarctic Terrestrial Biodiversity) and part of the SCAR EBA programme. I. Hogg and D. Wall (Guest Editors).
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Torres-Mellado, G.A., Jaña, R. & Casanova-Katny, M.A. Antarctic hairgrass expansion in the South Shetland archipelago and Antarctic Peninsula revisited. Polar Biol 34, 1679–1688 (2011). https://doi.org/10.1007/s00300-011-1099-6
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DOI: https://doi.org/10.1007/s00300-011-1099-6