Alternative site for the Global ecosystem typology with additional information for ecosystem profiles and indicative maps.
This site is maintained by jrfep
Many plants and animals survive surface freezing of freshwater lakes, in dormant life stages, by reducing activity beneath the ice, or by moving. Such freshwater lakes vary enormously in size and distribution, providing a wide range of habitats for many organisms, which undergo a succession of emergence during lake thaw. The annual thaw triggers highly productive plant and animal activity, beginning with diatom algae and then zooplankton. Habitat diversity increases with lake size, increasing the variety of plankton, aquatic plants, waterbugs, birds, and sometimes fish.
Waterbodies with frozen surfaces for at least one month of the year, with spring thaw initiating trophic successional dynamics beginning with a flush of diatom productivity. Deeper lakes may be cold stratified and fish tolerate oxygen depletion in winter.
Boreal regions, cool temperate continental Eurasia and North America and high altitudes of South America regions.
Selected references for this functional group:
Adrian R, Walz N, Hintze, T, Hoeg S, Rusche R (1999) Effects of ice duration on plankton succession during spring in a shallow polymictic lake Freshwater Biology 41: 621-634
Bertilsson S, Burgin A, Carey CC, Fey SB, Grossart H, Grubisic LM, Jones ID, Kirillin G, Lennon JT, Shade A, Smyth RL (2013) The under-ice microbiome of seasonally frozen lakes Limnology Oceanography 58: 1998–2012
Maps are indicative of global distribution patterns are not intended to represent fine-scale patterns. The maps show areas of the world containing major (coloured red) or minor occurrences (coloured yellow) of each ecosystem functional group. See general notes on maps.
There are 2 alternative versions of the indicative map for this functional group, please compare description and sources below.
Linke, S., Lehner, B., Ouellet Dallaire, C., Ariwi, J., Grill, G., Anand, M., Beames, P., Burchard-Levine, V., Maxwell, S., Moidu, H., Tan, F., Thieme, M. (2019) Global hydro-environmental sub-basin and river reach characteristics at high spatial resolution Scientific Data 6: 283 DOI:10.1038/s41597-019-0300-6
Messager, M.L., Lehner, B., Grill, G., Nedeva, I., Schmitt, O. (2016) Estimating the volume and age of water stored in global lakes using a geo-statistical approach Nature Communications 13603 DOI:10.1038/ncomms13603
Messager, M.L., Lehner, B., Grill, G., Nedeva, I., Schmitt, O. (2016) Estimating the volume and age of water stored in global lakes using a geo-statistical approach Nature Communications 13603 DOI:10.1038/ncomms13603
Linke, S., Lehner, B., Ouellet Dallaire, C., Ariwi, J., Grill, G., Anand, M., Beames, P., Burchard-Levine, V., Maxwell, S., Moidu, H., Tan, F., Thieme, M. (2019) Global hydro-environmental sub-basin and river reach characteristics at high spatial resolution Scientific Data 6: 283 DOI:10.1038/s41597-019-0300-6