7,660 results
ASO L4 Lidar Snow Depth 50m UTM Grid, Version 1
ASO L4 Lidar Snow Water Equivalent 50m UTM Grid, Version 1
Data release of OSL, 14C, and U-series age data supporting geologic mapping along the South Platte River corridor in northeastern Colorado
In conjunction with geologic mapping of four 7.5′ quadrangles along the South Platte River corridor in northeastern Colorado (Masters, Orchard, Weldona, and Fort Morgan), geochronology samples were collected and analyzed using optically stimulated luminescence (OSL), radiocarbon (14C), or U-series m
Gunnison Sage-grouse (Centrocercus minimus) bGUSGx_CONUS_2001v1 Habitat Map
This dataset represents a species habitat distribution map for Gunnison Sage-grouse (Centrocercus minimus) within the conterminous United States (CONUS) based on 2001 ground conditions. This habitat map was created by applying a deductive habitat model to remotely-sensed data layers within the speci
Proterozoic geology of the Needle Mountains; A summary
The Early and Middle Proterozoic rocks in the Needle Mountains include three distinct rock sequences (1) multiply deformed bimodal metavolcanic rocks, related sedimentary rocks, and plutonio units, all metamorphosed to medium grade; (2) multiply deformed clastic sedimentary rocks metamorphosed to lo
A field survey of amphibians in the rocky mountains of colorado
Seed protection by ants foraging on the extrafloral nectaries of the aspen sunflower, <i>Helianthella quinquenervis</i>
Course Book, Rocky Mountain Field Biology, 1989
Towards a More Exact Ecology
Living in the Cold
Physiology of Cold Adaptation in Birds
Seasonal variation in the intensity of competition and predation among dragonfly larvae
In nature, both similar and disparate sizes of Libellula lydia and L. luctuosa larvae frequently co—occur in time and space. To determine if these larvae interact as competitors, and/or predators and prey, I used artificial ponds to manipulate density, species composition, and size range of co—occur
Survey of Reproducing Populations Containing Neotenic Morphs of the Salamander, <i>Ambystoma Tigrinum nebulosum</i>, in the Gunnison Basin of Colorado
Spatial scaling in ecology
Acts in what Hutchinson (1965) has called the 'ecological theatre' are played out on various scales of space and time. To understand the drama, we must view it on the appropriate scale. Plant ecologists long ago recognized the importance of sampling scale in their descriptions of the dispersion or d
Testing the "mimicry" explanation for the <i>Colias</i> "alba" polymorphism: patterns of co-occurrence of <i>Colias</i> and Pierine butterflies
W. B. Watt, C. Kremen, P. Carter, Testing the `Mimicry' Explanation for the Colias `alba' Polymorphism: Patterns of Co-Occurrence of Colias and Pierine Butterflies, Functional Ecology, Vol. 3, No. 2 (1989), pp. 193-199
Optimal outcrossing in Ipomopsis aggregata: seed set and offspring fitness
Restricted gene flow and localized selection should establish a correlation between physical proximity and genetic similarity in many plant populations. Given this situation, fitness may decline in crosses between nearby plants (inbreeding depression), and in crosses between more widely separated pl
Antelope Creek Area
James P. Walsh. Amax Environmental Services Inc. February 1980. Map.
1980
Western State College of Colorado. 1979/1980.
What is the Meaning of Balanced Community: Ltr to Editor by Butch Clark
What ig the meaning of a balanced community? In the short-run a com- munity never really seems to be in balance. Some parts or sectors of the community's economy are growing bigger, or faster, or changing, or declining more rapidly than the others. In turn and as a result, other aspects of the commu
Western Slope Energy Research Center Newsletter
Unknown. Western Slope Energy Research Center Inc. June 15, 1979.