This table contains 36 years of demographic data for 12 sites. The trap record for each animal for each year the animal was present includes age, sex, locality, and reproductive status. Also included, when known, are changes in location, fate (predation death, dispersed), and genetic information (al

This table contains 36 years of trapping data. Up to 12 sites were studied annually within the vicinity of Rocky Mountain Biological Laboratory, Colorado; not all sites were monitored annually. A record includes the location where the subject was trapped, along with its body mass, age, sex, and repr

The behavior of intact Ephemerella infrequens (Ephemeroptera, Ephemerellidae) and Ephemerella with cerci amputated was observed in response to encounters with live predaceous stoneflies (Megarcys signata, Plecoptera: Perlodidae), tethered-live and tethered-model predators, freshly excised stonefly a

At least 20 species of Trichomycetes (Zygomycotina) were dissected from the hindguts and peritrophic membranes of larval Diptera (Simuliidae, Chironomidae), Ephemeroptera, and Plecoptera in two high-altitude streams, and the trichomycete species diversity in the two streams was compared. Periodic sa

Rates of ingestion of sucrose varied with sucrose concentration and butterfly sex, age and size for Speyeria mormonia Edwards (Lepidoptera: Nymphalidae). Peak rates of ingestion occurred between sucrose concentrations of 30% and 40%, as predicted by previous theory. Males fed at a faster rate than d

Values increased with increasing size of the predator, and inclusion of the C/A term indicated that predators would obtain greater reward from small relative to large prey, and from dipterans relative to mayflies.