495 results — topic: Freshwater Ecology
Humpback chub (Gila cypha) capture histories and growth data for two areas in the Colorado River network from 2009-2022 and 2017-2022
These data were compiled for a manuscript entitled 'Vital rates of a burgeoning population of Humpback Chub in western Grand Canyon. Objective(s) of our study were to compare survival and growth of humpback chub in western Grand Canyon to that from the more established metapopulation in eastern Gran
Growth and foraging consequences of facultative paedomorphosis in the tiger salamander, <i>Ambystoma tigrinum nebulosum</i>
Intraguild predation and cannibalism among larvae of detritivorous caddisflies in subalpine wetlands
Comparative data from subalpine wetlands in Colorado indicate that larvae of the limnephilid caddisflies, Asynarchus nigriculus and Limnephilus externus, are reciprocally abundant among habitats–Limnephilus larvae dominate in permanent waters, whereas Asynarchus larvae dominate in temporary basins.
The infection of nymphal Baetis bicaudatus by the mermithid nematode Gasteromermis sp
The effect of the mermithid parasite Gasteromermis sp. (Nematoda: Mermithidae) on the drift behaviour of its mayfly host, Baetis bicaudatus (Ephemeroptera: Baetidae): a trade-off between avoiding pred
Morphological and behavioral sex reversal in mermithid-infected mayflies
Alternative predator avoidance syndromes of stream-dwelling mayfly larvae
Experiments were conducted to compare the patterns, mechanisms, and costs of predator avoidance behavior among larvae of five species of mayflies that co—occur with the predatory stoneflies, Megarcys signata and Kogotus modestus in western Colorado streams. Mayfly drift dispersal behavior, use of hi
Differential behavioural responses of mayflies from stream with and without fish to trout odour
1. In streams, mayflies (Order Ephemeroptera) are at risk from fish feeding visually in the water column. The effect of fish odour on the behaviour of Baetis bicaudatus from a fishless stream and a trout stream was investigated in four large oval tanks supplied with water from the fishless stream.2.
Colonization and reproduction of the epibiotic flagellate <i>Colacium vesiculosum</i> (Euglenophyceae) on <i>Daphnia pulex</i>
ABSTRACTThe epibiotic flagellate Colacium vesiculosum Pringsheim attaches to planktonic species of Daphnia in freshwater habitats. Previous studies found that prevalence (percentage of substrate organisms carrying attached epibionts) and intensity (number of attached epibionts on a given substrate o
An investigation of the effects of pH, aluminum precipitate, and periphyton densities on benthic invertebrate populations in Paradise Basin, Colorado
Epibiont populations on <i>Daphnia</i>: effects of habitat patch dispersion on metapopulation dynamics
A comparative study: water chemistry, species richness and abundance in freshwater springs of Gunnison County
The effect of sediment load on aquatic invertebrate diversity in beaver ponds
Microhabitat and activity periodicity of predatory stoneflies and their mayfly prey in a western Colorado stream
Experiments were conducted to determine whether overlap between microhabitat preferences and activity periodicities of four mayfly species and their stonefly predators could explain species-specific differences in predator-prey encounter frequencies. Preferences for rock type (slate or granite), flo
Estimates of mayfly mortality: is stonefly predation a significant source?
Kerans, B. L., Peckarsky, B. L. and Anderson, C. 1995. Estimates of mayfly mortality: is stonefly predation a significant source? - Oikos 74: 315-323. Field experiments and surveys were canied out in a Rocky Mountain alpine stream during the summers of 1990 and 1992 to estimate the proportion of nat
Evolution of alternative life histories in the tiger salamander, <i>Ambystoma tigrinum nebulosum</i>
Evolution of alternative life histories in tiger salamanders (<i>Ambystoma tigrinum nebulosum</i>): a study of the cannibal morph
The effect of pH and other pollutants on benthic invertebrates in a pristine alpine watershed in central Colorado
Effects of pumping on the East River
Golf and the Environment: What Partners!
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