Ir. Walker et Gm. Macdonald, DISTRIBUTIONS OF CHIRONOMIDAE (INSECTA, DIPTERA) AND OTHER FRESH-WATER MIDGES RESPECT TO TREELINE, NORTHWEST-TERRITORIES, CANADA, Arctic and alpine research, 27(3), 1995, pp. 258-263
The distributions of chironomid, ceratopogonid, and Chaoborus fly rema
ins from 20 lakes in the Northwest Territories were studied with respe
ct to treeline and lake depth. The distributions illustrate the relati
on between faunal composition and lake depth, the importance of treeli
ne as an ecological boundary for aquatic insects, and the potential va
lue of chironomid head capsules and other aquatic insect remains as pr
oxy indicators of past changes in treeline position and associated lim
nological and climatological conditions.