Phenology of aquatic macroinvertebrates in an alpine wetland

The phenology patterns of aquatic macro-invertebrates were studied in a high alpine wetland in Colorado, between 1987 and 1990. Common taxa (chironomidae) were noted, as well as the effect of temperature on life-stage timing. Seasonal climatic patterns, and particularly temperature, appeared to control the phenology of most alpine aquatic macro-invertebrates. Chironomid species at this site had univoltine rather than multi-year life cycles, in contrast to species at other colder, arctic sites.