Dataset - Functioning of terrestrial ecosystems of the Maritime Antarctic in a warmer climate
Data were collected on three sites, see under Purpose.
For Falklands Islands there are observations and countings of species, and data on soil respiration (2004, 2005).
For all three sites climate data were collected.
Anchorage Island: 2004 - 2008; temperature; soil moisture; relative humidity.
Falkland Islands: 2003 - 2009; temperature; soil moisture; relative humidity and AWS data(relative humidity, air temperature, snow height, wind speed, wind direction, pyranometer).
Signy Island: 2003 - 2007; temperature; soil moisture; relative humidity.
The Netherlands Institute of Ecology, Unit for Polar Ecology, in collaboration with the Vrije Universiteit, Amsterdam, Department of Systems Ecology, and the British Antarctic Survey, Cambridge, UK, executes research on the effects of climate change on the terrestrial ecosystems of the polar regions, with a focus on Antarctic Terrestrial Ecosystems. In 2003, three field sites were established along a latitudinal gradient: in the Falkland Islands (54°S), Signy Island (61°S), and Anchorage Island (68°S). The latitudinal gradient, serves as a proxy for climate change. In each of the three field sites artificial warming treatments were established. Artificial warming was achieved by erecting hexagonal open top chambers (OTCs) made of acrylic plastic, 2m in diameter, 60cm high.
The OTCs were placed in a paired plot design, without an OTC receiving ambient circumstances, the other half covered with an OTC in which the temperature was enhanced by 1 – 2 °C. As OTCs do not influence the temperature only, but also other climatic factors such as relative humidity, soil moisture, etc. in both the control plot and the OTC a combination of direct warming with OTCs across this environmental gradient allows to look at short and long-term effects of warming on ecosystems.
Field observations and measurements have been made yearly in the three field sites as part of three Ph.D. studies, on the effects of climate change on ecosystem composition and – processes (especially primary production and decomposition), on hydrological and nutritional changes, and on changes in the soil microbial communities and processes
Centre for Estuarine and Coastal Ecology, Netherlands Institute of Ecology (NIOO-CEME)
|Aliens in Antarctica: Quantifying plant- and animal propagules inadvertently carried into the Antarctic||851.20.040||2008-07-01 - 2010-08-30|
Bokhorst, S., Huiskes, A.H.L., et al., 2008. Climate change effects on soil arthropod communities from the Falkland Islands and the Maritime Antarctic. Soil Biology and Biochemistry 40 (7), 1547-1556
Bokhorst, S., Huiskes, A.H.L., et al., 2007. The effect of environmental change on vascular plant and cryptogam communities from the Falkland Islands and the Maritime Antarctic. BMC ecology 7 (1), 15
Bokhorst, S., Huiskes, A.H.L., et al., 2007. Climate change effects on organic matter decomposition rates in ecosystems from the Maritime Antarctic and Falkland Islands. Global Change Biology 13 (12), 2642-2653
Bokhorst, S., Huiskes, A.H.L., et al., 2007. External nutrient inputs into terrestrial ecosystems of the Falkland Islands and the Maritime Antarctic region. Polar Biology 30 (10), 1315-1321
Bokhorst, S., Ronfort, C., et al., 2007. Food choice of Antarctic soil arthropods clarified by stable isotope signatures. Polar Biology 30 (8), 983-990
- Continent > Antarctica
- Geographic Region > Polar
- Biosphere > Ecological Dynamics > Community Dynamics > Biodiversity Functions
- Biosphere > Ecological Dynamics > Ecosystem Functions > Biomass Dynamics
- Biosphere > Ecological Dynamics > Ecosystem Functions > Decomposition
- Biosphere > Ecological Dynamics > Ecosystem Functions > Photosynthesis
- Biosphere > Ecological Dynamics > Species/population Interactions > Exotic Species
- Biosphere > Ecosystems > Terrestrial Ecosystems > Alpine/tundra
- Biosphere > Vegetation > Vegetation Cover