Warming impacts potential germination of non-native plants on the Antarctic Peninsula

被引:12
作者
Bokhorst, Stef [1 ]
Convey, Peter [2 ]
Casanova-Katny, Angelica [3 ]
Aerts, Rien [1 ]
机构
[1] Vrije Univ Amsterdam, Dept Ecol Sci, Amsterdam, Netherlands
[2] British Antarctic Survey, Nat Environm Res Council, Cambridge, England
[3] Univ Catolica Temuco, Fac Recursos Nat, Lab Ecofisiol Vegetal & Nucleo Estudios Ambiental, Temuco, Chile
基金
英国自然环境研究理事会;
关键词
INVASIVE POA-ANNUA; CLIMATE-CHANGE; BIOLOGICAL INVASIONS; TEMPERATURE; GROWTH; EXPANSION; RISK; ESTABLISHMENT; REPRODUCTION; COMMUNITIES;
D O I
10.1038/s42003-021-01951-3
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
The Antarctic Peninsula is under pressure from non-native plants and this risk is expected to increase under climate warming. Establishment and subsequent range expansion of non-native plants depend in part on germination ability under Antarctic conditions, but quantifying these processes has yet to receive detailed study. Viability testing and plant growth responses under simulated Antarctic soil surface conditions over an annual cycle show that 16 non-native species, including grasses, herbs, rushes and a succulent, germinated and continued development under a warming scenario. Thermal germination requirement (degree day sum) was calculated for each species and field soil-temperature recordings indicate that this is satisfied as far south as 72 degrees S. Here, we show that the establishment potential of non-native species, in number and geographical range, is considerably greater than currently suggested by species distribution modelling approaches, with important implications for risk assessments of non-native species along the Antarctic Peninsula. Stef Bokhorst et al. simulate a warming scenario in Antarctic soil under laboratory conditions and report the germination and growth of sixteen non-native plant species. These experimental results, combined with calculations of thermal germination requirement at +3 degrees C and +5 degrees C warming scenarios demonstrate that the risk of establishment by non-native species in Antarctica may be greater than previously suggested by species distribution modelling approaches.
引用
收藏
页数:10
相关论文
共 82 条
  • [1] Aerts R, 2000, ADV ECOL RES, V30, P1, DOI 10.1016/S0065-2504(08)60016-1
  • [2] Allen S.E, 1970, SOILS MARITIME ANTAR, P693
  • [3] Trends in Antarctic Peninsula surface melting conditions from observations and regional climate modeling
    Barrand, N. E.
    Vaughan, D. G.
    Steiner, N.
    Tedesco, M.
    Munneke, P. Kuipers
    van den Broeke, M. R.
    Hosking, J. S.
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE, 2013, 118 (01) : 315 - 330
  • [4] Polar lessons learned: long-term management based on shared threats in Arctic and Antarctic environments
    Bennett, Joseph R.
    Shaw, Justine D.
    Terauds, Aleks
    Smol, John P.
    Aerts, Rien
    Bergstrom, Dana M.
    Blais, Jules M.
    Cheung, William W. L.
    Chown, Steven L.
    Lea, Mary-Anne
    Nielsen, Uffe N.
    Pauly, Daniel
    Reimer, Kenneth J.
    Riddle, Martin J.
    Snape, Ian
    Stark, Jonathan S.
    Tulloch, Vivitskaia J.
    Possingham, Hugh P.
    [J]. FRONTIERS IN ECOLOGY AND THE ENVIRONMENT, 2015, 13 (06) : 316 - 324
  • [5] Life at the front: history, ecology and change on southern ocean islands
    Bergstrom, DM
    Chown, SL
    [J]. TRENDS IN ECOLOGY & EVOLUTION, 1999, 14 (12) : 472 - 477
  • [7] Strategies of survival and resource exploitation in the Antarctic fellfield ecosystem
    Block, W.
    Smith, R. I. Lewis
    Kennedy, A. D.
    [J]. BIOLOGICAL REVIEWS, 2009, 84 (03) : 449 - 484
  • [8] Soil development and soil biology on King George Island, Maritime Antarctic
    Boelter, Manfred
    [J]. POLISH POLAR RESEARCH, 2011, 32 (02) : 105 - 116
  • [9] Climate change effects on soil arthropod communities from the Falkland Islands and the Maritime Antarctic
    Bokhorst, S.
    Huiskes, A.
    Convey, P.
    van Bodegom, P. M.
    Aerts, R.
    [J]. SOIL BIOLOGY & BIOCHEMISTRY, 2008, 40 (07) : 1547 - 1556
  • [10] Bokhorst S., 2020, WARMING IMPACTS POTE, DOI [10.1038/s42003-021-01951-3, DOI 10.1038/S42003-021-01951-3]