Ecology under lake ice

TitleEcology under lake ice
Publication TypeJournal Article
Year of Publication2017
AuthorsHampton, S. E., Galloway A. W. E., Powers S. M., Ozersky T., Woo K. H., Batt R. D., Labou S. G., O'Reilly C. M., Sharma S., Lottig N. R., Stanley E. H., North R. L., Stockwell J. D., Adrian R., Weyhenmeyer G. A., Arvola L., Baulch H. M., Bertani I., Bowman L. L., Carey C. C., Catalan J., Colom-Montero W., Domine L. M., Felip M., Granados I., Gries C., Grossart H. P., Haberman J., Haldna M., Hayden B., Higgins S. N., Jolley J. C., Kahilainen K. K., Kaup E., Kehoe M. J., MacIntyre S., Mackay A. W., Mariash H. L., McKay R. M., Nixdorf B., Noges P., Noges T., Palmer M., Pierson D. C., Post D. M., Pruett M. J., Rautio M., Read J. S., Roberts S. L., Rucker J., Sadro S., Silow E. A., Smith D. E., Sterner R. W., Swann G. E. A., Timofeyev M. A., Toro M., Twiss M. R., Vogt R. J., Watson S. B., Whiteford E. J., and Xenopoulos M. A.
JournalEcology Letters
Number of Pages98-111
Date PublishedJan
Type of ArticleReview
Reprint Number1461-023X
LTER Accession NumberWOS:000390026200010
KeywordsAquatic ecosystem; data synthesis; freshwater; lake; limnology;, climate-change; covered lakes; aulacoseira-baicalensis; seasonal, long-term; plankton; seasonal; time series; winter ecology, north-atlantic oscillation; fresh-water lakes; under-ice;, succession; plankton succession; community structure; winter limnology

Winter conditions are rapidly changing in temperate ecosystems, particularly for those that experience periods of snow and ice cover. Relatively little is known of winter ecology in these systems, due to a historical research focus on summer 'growing seasons'. We executed the first global quantitative synthesis on under-ice lake ecology, including 36 abiotic and biotic variables from 42 research groups and 101 lakes, examining seasonal differences and connections as well as how seasonal differences vary with geophysical factors. Plankton were more abundant under ice than expected; mean winter values were 43.2% of summer values for chlorophyll a, 15.8% of summer phytoplankton biovolume and 25.3% of summer zooplankton density. Dissolved nitrogen concentrations were typically higher during winter, and these differences were exaggerated in smaller lakes. Lake size also influenced winter-summer patterns for dissolved organic carbon (DOC), with higher winter DOC in smaller lakes. At coarse levels of taxonomic aggregation, phytoplankton and zooplankton community composition showed few systematic differences between seasons, although literature suggests that seasonal differences are frequently lake-specific, species-specific, or occur at the level of functional group. Within the subset of lakes that had longer time series, winter influenced the subsequent summer for some nutrient variables and zooplankton biomass.

Print Copy LocationEcol. Lett.