Nilssen, J.P., T. Ostdahl & W.T.W. Potts. (1984). Species Replacements in Acidified Lakes: Physiology, Predation or Competition?. Reports of the Institute of Freshwater Research, Drottningholm. 61:148-153.

510952

Nilssen, J.P., T. Ostdahl & W.T.W. Potts

1984

61:148-153.

Publication

http://hdl.handle.net/2077/48736

Available for editors   [request]

The major processes that affect acidified lakes are changing physiological, competitive and predatory interactions. Major pelagic taxa, like fish and daphnids are physiologically strongly vulnerable to acidic environments. Copepods, water mites and Chaoborus showed good sodium balance in acidic waters primarily because their internal fluids are more effectively insulated from the ambient water. Life history interactions between selective predators and prey may lead to local extinction of the prey in many environments. Competitive _ interactions among the cladocerans are probably only partly responsible for species replacement in that group.

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