Spatiotemporal patterns of phenology may be affected by mosaics of environmental and genetic variation. Environmental drivers may have temporally lagged impacts, but patterns and mechanisms remain poorly known. We combine multiple genomic, remotely sensed, and physically modeled datasets to determin

Wintertime supercooled liquid water (SLW) observations have been made over the Grand Mesa of Colorado from early 1983 through March 1985. Measurements were made with aircraft, microwave radiometers, and tower-mounted icing meters. Results of analyses of this large data set are summarized. It was fou

Climate change is causing species with non-overlapping ranges to come in contact, and a key challenge is to predict the consequences of such species re-shuffling. Experiments on plants have focused largely on novel competitive interactions; other species interactions, such as plant–microbe symbioses

AbstractHuman activities have substantially increased atmospheric nitrogen (N) deposition in ecosystems worldwide, often leading to higher plant quality for herbivores and greater herbivory. Predators frequently suppress herbivores and indirectly benefit plants via “trophic cascades”, and the streng

An important, long-lasting role of the natal environment on reproductive site selection is suggested, and the conditions experienced in early development can strongly affect reproductive behaviors across the life cycle, as well as differences in philopatry based on natal pond.

Premise of the StudyOrganisms engage in multiple species interactions simultaneously. While pollination studies generally focus on plants and pollinators exclusively, secondary robbing, a behavior that requires other species (primary robbers) to first create access holes in corollas, is common. It h

Pollinator-mediated selection is expected to constrain floral color variation within plant populations. Here, we test for patterns of constraint on floral color variation in 38 bee- and/or hummingbird-pollinated plant species from Colorado, United States. We collected reflectance spectra for at leas

Abstract Ranchettes are low-density, rural parcels typically from thirty-five to seventy acres that have proliferated across the Rocky Mountain West. They consume large amounts of land and increase fragmentation, leading to potentially negative impacts on the ecology and cultural identity of local p

Representativeness and quality of collected meteorological data impact accuracy and precision of climate, hydrological, and biogeochemical analyses and predictions. We developed a comprehensive Quality Assurance (QA) and Quality Control (QC) statistical framework, consisting of three major phases: P

Abstract The traditionally held assumption that photo-dependent processes are the predominant source of H 2 O 2 in natural waters has been recently questioned by an increrasing body of evidence showing the ubiquitiousness of H 2 O 2 in dark water bodies and in groundwater. In this study, we conducte

The loss of aboveground plant diversity alters belowground ecosystem function; yet, the mechanisms underpinning this relationship and the degree to which plant community structure and climate mediate the effects of plant species loss remain unclear. Here, we explored how plant species loss through e

The “East Muddy Creek Landslide Complex” in Gunnison County, Colorado, USA destroyed Colorado State Highway 133 from 1986 to 1987 and has been investigated over decades during different periods of reactivation. This paper presents a case study of novel landslide activity recognition related to the l

Water supply in the Colorado River could drop so far in the next decade that the ability of the Upper Colorado River Basin states – Colorado, Utah, Wyoming, and New Mexico – to meet their legal obligations to downstream users in Nevada, Arizona, California, and Mexico would be in grave jeopardy. Leg

Abstract Nine serologic types of Clostridium tetani have been differentiated by means of the agglutination reaction as a result of the studies of Tulloch (1), Bauer (2), Fildes (3), Bauer and Meyer (4), Coleman and Meyer (5) and Coleman and Gunnison (6). As Felix and Robertson (7) have pointed out,

One of the greatest achievements in engineering the West, the 242 mi long Colorado River Aqueduct brought water to Southern California and paved the way for the region’s tremendous growth.

The theory clarifies the condition for the energetic equivalence rule (EER) to hold, and provides a statistical explanation for the importance of species functional variation in determining population dynamics and coexistence patterns.