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Development of aquatic insect eggs in relation to temperature and strategies for dealing with different thermal environments
It is suggested that it occurs widely in eggs of Plecoptera and in the mayfly Rhithrogena loyolaea , cold-adapted species that may use diapause to survive periods of high temperature. Expand
Sessile bacteria: An important component of the microbial population in small mountain streams 1
Direct counts by epifluorescence microscopy demonstrated that epilithic bacteria were numerically more important than free-floating bacteria in unpolluted mountain streams and the relationship between sessile bacterial concentratons and epILithic algal biomass in one tributary suggested that, in some cases, factors other than epilithsic primary production governed the attached microbial population. Expand
Processing of willow leaves in two Alberta Rocky Mountain streams
Nylon bags of 3.5 mm and 0.25 mm mesh were used lo investigate the processing of Salix drummondiana Barratt leaves in two second order Alberta Rocky Mountain Creeks, Twin Creek and Cabin Creek.… Expand
Development Rates of Eggs of Some Canadian Stoneflies (Plecoptera) in Relation to Temperature
The eggs of eight species of Plecoptera from Alberta were reared at constant temperatures between 2 and 25°C and the relationships between temperature and number of days required for development and hatching were fitted to power equations. Expand
The life history of Zapada columbiana (Plecoptera: Nemouridae) in a Rocky Mountain stream
The life cycle of Zapada columbiana (Claassen) is basically 3 years in a subalpine stream in the Rocky Mountains of Alberta, although some individuals may complete their life cycle in 2 years. Adul...
Life histories of two insect shredders and their role in detritus degradation in Rocky Mountain streams
- R. Mutch
- Environmental Science
Biogeochemistry on mountain stream waters: the Marmot system
THE EFFECT OF WATER TEMPERATURE ON THE EGG INCUBATION PERIOD OF MESOCAPNIA OENONE (PLECOPTERA) FROM THE CANADIAN ROCKY MOUNTAINS
It is demonstrated that a combination of a low number of degree-days required for hatching at low temperatures and reduced sensitivity to higher temperatures ensures that egg hatching occurs in the spring. Expand
The life history of Philocasca alba (Trichoptera: Limnephilidae) in a Rocky Mountain stream
The life cycle of Philocasca alba Nimmo spans 3 years in a cold, second order, subalpine stream in the Rocky Mountains of Alberta, with later instars constituted a much greater than expected proportion of total larvae among submerged bank vegetation in spring and summer and deciduous leaves in autumn. Expand
The importance of sampling and sorting techniques in the elucidation of the life cycle of Zapada columbiana (Nemouridae: Plecoptera)
The life cycle of Zapada columbiana (Claassen) was shown to be of 2 years duration at three sites in Alberta, Canada, where the species was previously said to be univoltine. The erroneous conclusio...