High-elevation mountain regions, central to global freshwater supply, are experiencing more rapid warming than low-elevation locations. High-elevation streams are therefore potentially critical indicators for earth system and water chemistry response to warming. Here we present concerted hydroclimat

This data package includes 6 csv files that include Community Land Model (CLM) simulations for three Fluxnet sites (i.e., US-NR1, US-GLE and US-VCM) and three SNOTEL sites (i.e., ER-BT, ER-SP and ER-PK) in the Upper Colorado River Basin area. Data inputs include meteorological forcing data (obtained

Atmospheric nitrous oxide contributes directly to global warming, yet models of the nitrogen cycle do not account for bedrock, the largest pool of terrestrial nitrogen, as a source of nitrous oxide. Although it is known that release rates of nitrogen from bedrock are large, there is an incomplete un

Bumble bee occurrence data used for "Climate change winners and losers among North American bumble bees": These data comprise 649 407 specimen records from 48 species and spans 1805–2020. These records have been compiled from a variety of collections and sources with reputable origin. Data contribut

Summary This data package contains numerical simulation results of integrated hydrology in Lower Triangle Region in East River Watershed, Colorado. The system is forced with DAYMET precipitation and climate data of the region for the water years 2016 and 2017. The results are computed on triangular

Summary This data package contains numerical simulation results of integrated hydrology in Lower Triangle Region in East River Watershed, Colorado. The system is forced with DAYMET precipitation and climate data of the region for the water years 2016 and 2017. The results are computed on triangular

Ecological systems are inherently dynamic, and a primary way in which they are dynamic is through time. Individual organisms, populations, communities, species interactions, and ecosystem functions all follow a temporal progression from the past, to the present, and into the future. This temporal pr

Climate change is impacting ecological systems around the globe with much of current research characterizing direct plant and animal responses. However, there is a gap in our knowledge regarding the direct response of fungal symbionts to climate change. Horizontally transmitted leaf endophytes (type

Climate change alters many biotic and abiotic factors in environments around the world. At higher elevations in particular, climate change brings warmer mean temperatures, reduced snowpack, earlier snowmelt, and more extreme drought. In this study, we analyzed the effect of early snow removal on Boe

AbstractSurveys of bumble bees and the plants they visit, carried out in 1974 near the Rocky Mountain Biological Laboratory in Colorado, were repeated in 2007, thus permitting the testing of hypotheses arising from observed climate change over the intervening 33‐yr period. As expected, given an incr

Land cover change due to drought and insect-­‐induced tree mortality or altered vegetation succession is one of the many consequences of anthropogenic climate change. While the hydrologic response to land cover change and increases in temperature have been explored independently, few studies have co

Changing sex ratiosClimate-warming temperatures might be expected to affect the sex ratio of species if sex determination is temperature-dependent. Petryet al.show that indirect climate effects could also alter sex ratios in species in which sex is genetically determined and damage reproductive fitn

Background: Trait evolution and plasticity are expected to interactively influence responses to climate change, but rapid changes in and increased variability of temperature may limit evolutionary responses. We use historical specimens to document changes in the size and thermoregulatory traits of a

Aquatic organisms that live at high latitudes and elevations are especially vulnerable to climate-change-induced alterations in snowpack, snowmelt, and evaporation rates, all of which affect basin filling and drying dates. Extraordinarily early drying events in shallow ponds and wetlands at our stud

Miller-Struttmann et al. (2015) suggest that, in a North American alpine ecosystem, reduced flower abundance due to climate change has driven the evolution of shorter tongues in two bumble bee species. We accept the evidence that tongue length has decreased, but are unconvinced by the adaptive expla

Synthesizing papers from the last two years, generalizations about the fingerprints of climate change on insects' population dynamics and phenology are examined to show that knowledge of effects ofClimate change is still biased by organism and geographic region, and to some extent by scale of climat

Heidi Joan MacLean: ADAPTATION TO CLIMATE AND CLIMATE CHANGE IN ROCKY MOUNTAIN BUTTERFLIES: MORPHOLOGY, PHYSIOLOGY AND BEHAVIOR (Under the direction of Joel G. Kingsolver and Lauren B. Buckley)

Boechera stricta is a mustard that grows naturally throughout a wide range of altitudes in the Colorado Rocky Mountains. B. stricta has a variety of natural herbivores, which makes it an interesting system in which to study how plant-herbivore relationships vary over an elevational gradient. Through