Journal ArticleDOI
Zooplankton Assemblages Related to Environmental Characteristics in Treeline Ponds in Finnish Lapland
TLDR
In this article, the authors surveyed 17 subarctic ponds with differing catchment areas and habitat types in northern Finland during the open water season from June to August, and found that the abundance of copepods in all sites dominated that of clasps.Citations
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Book ChapterDOI
Cladocera and Other Branchiopod Crustaceans
Atte Korhola,Milla Rautio +1 more
TL;DR: Lake sediments contain a variety of organic and inorganic remains that may be used to track the history of a lake or its catchment, and many contradictory records and opinions have been presented concerning their paleoecology and indicator value of cladocerans.
Journal ArticleDOI
Shallow freshwater ecosystems of the circumpolar Arctic.
TL;DR: In this paper, the authors provided a synthesis of limnological data and conclusions from studies on ponds and small lakes at our research sites in Subarctic and Arctic Canada, Alaska, northern Scandinavia, and Greenland.
Journal ArticleDOI
Benthic and pelagic food resources for zooplankton in shallow high‐latitude lakes and ponds
Milla Rautio,Warwick F. Vincent +1 more
TL;DR: This study indicates that the classical aquatic food web in which phytoplankton provide the sole production base for grazers does not apply to northern shallow lakes and ponds, and microbial mats increase the physical complexity of these high latitude ecosystems and likely play a role in sustaining their high zooplankon biomass.
Journal ArticleDOI
General features of the arctic relevant to climate change in freshwater ecosystems.
Terry D. Prowse,Frederick J. Wrona,James D. Reist,John E. Hobbie,Lucie M. J. Lévesque,Warwick F. Vincent +5 more
TL;DR: The movement of physical, chemical and biotic components through the interlinked lentic and lotic freshwater systems are major determinants of arctic freshwater ecology.
Journal ArticleDOI
Effects of ultraviolet radiation and dissolved organic carbon on the survival of subarctic zooplankton
Milla Rautio,Atte Korhola +1 more
TL;DR: Testing experimentally the effect of natural UV radiation, which was controlled by different filters and varying concentrations of UV-screening dissolved organic carbon (DOC), on the survival of the cladocerans, Daphnialongispina and D.pulex, found that E.graciloides responded more readily to changes in UV radiation than did the daphnids.
References
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Journal ArticleDOI
New spectrophotometric equations for determining chlorophylls a, b, c1 and c2 in higher plants, algae and natural phytoplankton
S.W. Jeffrey,G.F. Humphrey +1 more
TL;DR: New equations are presented for spectrophotometric determination of chlorophylls, based on revised extinction coefficients of chloropylls a, b, c1 and c2, which may be used for determining chlorophyLLs a and b in higher plants and green algae.
CANOCO Reference Manual and User's Guide to Canoco for Windows: Software for Canonical Community Ordination (Version 4)
C.J.F. ter Braak,Petr Šmilauer +1 more
Book ChapterDOI
Detrended correspondence analysis: an improved ordination technique
M. O. Hill,Hugh G. Gauch +1 more
TL;DR: DCA consistently gives the most interpretable ordination results, but as always the interpretation of results remains a matter of ecological insight and is improved by field experience and by integration of supplementary environmental data for the vegetation sample sites.
Book ChapterDOI
A Theory of Gradient Analysis
TL;DR: In this article, the authors present a theory of gradient analysis, in which the heuristic techniques are integrated with regression, calibration, ordination and constrained ordination as distinct, well-defined statistical problems.