7,660 results
Sub-Basin Delineation for the Upper East River, Colorado, United States.
Upper East sub-basins are delineated as area contributing flow to SFA 2016 stream gage locations. Shapefile attributes include sub-basin ID, name, area (m2 and km2) and codes for spatial contributions to EBC and PH used by Carroll et al. (2018). Geospatial reference is UTM 1983 zone 13. JPEG image p
Annual floodplain sediment deposition recorded using feldspar clay marker horizons along the East River, Colorado, 2015-2017.
White feldspar clay was placed along 24 transects defining a ~9-km long study reach along the meandering snowmelt-dominated East River in Colorado, USA. Feldspar markers horizons were placed in the fall of 2015 and 2016 along transects with the space between them increasing with distance from the ch
Sample Collection Metadata for Soil Cores from the East River Watershed, Colorado collected in 2017.
This data package contains sample collection metadata for soil cores from the East River Watershed in Colorado used in biogeochemical analyses by the Watershed Function SFA. Soil cores were collected seasonally during autumn, winter, snowmelt, and spring at a predominately montane meadow, high altit
Depth and elevation of floodplain fine sediment along the East River near Crested Butte, Colorado measured in 2016 and 2017.
The depth of floodplain fine sediment was measured at 1,601 points along the East River near Crested Butte, Colorado spanning a study reach approximately 800 m in length in 2016 and 2017. These depths are being used to estimate the volume of floodplain sediment present along the study reach, convert
Consistency of individual foraging and vigilance patterns in Yellow-Bellied marmots
Animals frequently exhibit variation in their behavior. In the past this variation has been treated as statistical error, but research has identified correlated behaviors across contexts, referred to as behavioral syndromes. We focused on yellow-bellied marmots (Marmota flaviventris) and examined vi
Effects of climate change on growth and seedling establishment of young lodgepole pine
Anthropogenically induced climate change is expected to effect numerous climatic alterations pertinent to ecosystems, including increased mean global temperature and altered precipitation regimes. High-elevation ecosystems are especially sensitive to climatic changes because slight fluctuations in f
Effects of Interspecific Pollen Transfer (IPT) in a Specialist and a Generalist Flower
Nectar robbing in Ipomopsis aggregata: does high nectar production confer tolerance?
The effects of the invasive plant <i>Linaria vulgaris</i> on native plant fitness and pollinator behavior
The invasion of the European perennial Linaria vulgaris to the alpine environment of Colorado may lead to competition for natural resources, space, and pollinators with native species. I measured the effects on fitness of L. vulgaris on three plant species native to Colorado, using both hand-pollina
Antipredatory response of mule deer (<i>Odocoileus hemionus</i>) to predator urines
Auditory, visual, and olfactory cues of predator presence create a landscape of fear for prey animals. Prey can respond to predation risk perceived from these cues by increasing vigilance, increasing group size, altering habitat use, and reducing activity times. State of the animal and predator type
The Effect of Ant Colony Proximity on Membracid Survivorship
Intraspecific signaling function of Crown Coloration in Mountain White-Crowned Sparrows
There is evidence showing that large differences between age/sex categories in crown morphology of white-crowned sparrows are used to signal status. We investigated the role of more subtle crown characteristics, specifically the proportion of the crown that is white, as a signal used to mediate aggr
the influence of red-naped sapsuckers on willow bird communities
In subalpine Colorado ecosystems, red-naped sapsuckers feed by excavating sap wells in shrubby willow branches. Many species of insects, birds, and mammals are known to feed from this sap. Previous studies on avian sap robbers suggest these sap wells may have a direct effect on bird communities. Fur
The effects of Castilleja miniata's parasitic relationship with Delphinium nuttallianum on pollinator visitation and pollination success
Castilleja miniata is a hemiparasite capable of taking up chemical toxins from its host plant. A unique relationship is C. miniata’s parasitism on Delphinium nuttallianum (which contains alkaloids); alkaloids from D. nuttallianum are taken up into C. miniata’s nectar which could negatively affect C.
The Timing of Floral Color Change in Lupinus argenteus
This paper describes the timing of floral color change with Lupinus argenteus and the behavior of pollinator visitation to manipulated treatments. In theory plants my benefit from color change in two ways. One way is to direct pollinators to rewarding flowers. This may increase the foraging efficien
Impacts of Mule Deer Herbivory on Herbaceous Vegetation in the Gothic Area, with Focus on Aquilegia coerulea
The impacts of growing deer populations upon biodiversity have caused concern for ecologists since it is speculated that certain species of herbs are targeted and over abundantly browsed. This study investigated deer abundance as well as intensity of deer browsing of herbaceous plants inside and out
Proceedings: Using Seeds of Native Species on Rangelands
Nancy L. Shaw, Bruce A. Roundy. 1997.
People, Places, and Partnerships: A Progress Report on Community Based Environmental Protection
EPA July 1997
Native Grasses
Larry K. Holzworth, Ray W. Brown, 1997, U.S Department of Agriculture
National Water-Quality Assessment (NAWQA) Program Bibliography
National Water-Quality Assessment Bibliography, November 10, 1997
