495 results — topic: Freshwater Ecology
Kinetics Data of Iron(II), Manganese(II), Dissolved Organic Carbon and Nitrate from Batch Incubation Experiments Using Hyporheic Sediments from the East River Watershed, Colorado.
Hyporheic zones act as critical ecological links between terrestrial and aquatic systems where redox-sensitive metals of iron (Fe) and manganese (Mn) significantly impact nutrient cycling and water quality. In order to understand the production, release and speciation of Fe(II) and Mn(II) in groundw
Minimum Flow Recommendation for Passage of Colorado Squawfish and Rasorback Sucker in the 2.3 Mile Reach of the Lower Gunnison River: Redlands Diversion Dam to the Colorado River Confluence
Bob D. Burdick. US Fish and Wildlife. January 1997.
The distributional ecology and diversity of benthic insects in Cement Creek, Colorado
Distributional patterns and species diversity of benthic insects in an alpine stream in Gunnison County, Colorado, USA were investigated on several levels of spatial scale, from faunal replacement over 1,000 vertical m to microdistribution within the stony substratum. Ecotones including zonation in
Differences in standing times of trout in a pond and trout in a stream
The prey preferences of two different aquatic beetle larvae
Test for predator escape mechanisms in ostracods
The effect of downstream drift on colonization of aquatic insect larvae
The effects of the Keystone Mine on aquatic invertebrates
Tricopter density under rocks in different velocities of the East River, Gothic, Colorado
Primary productivity of Sylvanite Pond
Predation on <i>Ambystoma tigrinum</i>
Changes in diversity with extremes
Feeding strategy of <i>Ameletus</i>
Dragonfly observation
Size differences in <i>Baetis</i>
The adaptive significance of paedogenesis in North American species of <i>Ambystoma</i> (Amphibia: Caudata): an hypothesis
Paedogenesis in varying degrees is exhibited by many species of North American salamanders, particularly of the genus Ambystoma. On the basis of a consideration of the ecology of these species, it is proposed that paedogenesis is evolutionarily adaptive and the following hypothesis is presented. In
Dietary differences between two co-occurring calanoid copepod species
It is concluded that either temporal differences or size differences of copepodids and adults would allow coexistence and that extreme size differences are probably unimportant compared to morphological differences of feeding appendages and perhaps behavioral differences.
Zooplankton competition and predation: an experimental test of the size-efficiency hypothesis
Twelve 42—liter plankton cages were used in an alpine Colorado pond to test a size—efficiency hypothesis: to determine why small herbivorous zooplankton species tend not to coexist with large species. The size—efficiency hypothesis, that large species exclude the smaller ones through competition for