485 results — topic: Geochemistry & Isotopes

Dataset

East River Surface and Pore Water FTICR-MS Data Associated with “Implications of sample treatment on characterization of the riverine environmental metabolome”

Surface and pore water samples were collected from distributed locations around Meander A in East River (Crested Butte, CO, USA) during the summer of 2018. This dataset consists of the characterization of dissolved organic matter using 12 Tesla Fourier transform ion cyclotron resonance mass spectrom

Amelia Nelson, Jason Toyoda, Rosalie Chu2021DOI: 10.15485/1813303
Dataset

Sensor-based phenology from snowmelt experiment gradient, East River, Colorado, 2017 to 2020

The timing of snowmelt is a critical cue for the initiation of growth in mountain meadow ecosystems and can also impact the duration and magnitude of plant production. High frequency observations of species-level phenology are time consuming and require a high degree of expertise, and publicly avail

Heidi Steltzer, Amanda Henderson, Chelsea Wilmer2021DOI: 10.15485/1842910
Dataset

Sensor-based phenology from snowmelt experiment gradient, East River, Colorado, 2017 to 2020

The timing of snowmelt is a critical cue for the initiation of growth in mountain meadow ecosystems and can also impact the duration and magnitude of plant production. High frequency observations of species-level phenology are time consuming and require a high degree of expertise, and publicly avail

Heidi Steltzer, Amanda Henderson, Chelsea Wilmer2021DOI: 10.15485/1842910
Dataset

Sensor-based phenology from snowmelt experiment gradient, East River, Colorado, 2017 to 2020

The timing of snowmelt is a critical cue for the initiation of growth in mountain meadow ecosystems and can also impact the duration and magnitude of plant production. High frequency observations of species-level phenology are time consuming and require a high degree of expertise, and publicly avail

Heidi Steltzer, Amanda Henderson, Chelsea Wilmer2021DOI: 10.15485/1842910
Dataset

Sensor-based phenology from snowmelt experiment gradient, East River, Colorado, 2017 to 2020

The timing of snowmelt is a critical cue for the initiation of growth in mountain meadow ecosystems and can also impact the duration and magnitude of plant production. High frequency observations of species-level phenology are time consuming and require a high degree of expertise, and publicly avail

Heidi Steltzer, Amanda Henderson, Chelsea Wilmer2021DOI: 10.15485/1842910
Dataset

An examination of synchrony between insect emergence and flowering in Rocky Mountain meadows.

One possible effect of climate change is the generation of a mismatch in the seasonal timing of interacting organisms, owing to species-specific shifts in phenology. Despite concerns that plants and pollinators might be at risk of such decoupling, there have been few attempts to test this hypothesis

Forrest, Jessica R. K, D. Thomson, James2021DOI: 10.6084/m9.figshare.c.3309642.v1
Dataset

Appendix C. Relationships between temperature and arrival of Broad-tailed Hummingbirds and flowering onset in its early-season nectar resources at the Rocky Mountain Biological Laboratory in Colorado, USA.

Phenological advancements driven by climate change are especially pronounced at higher latitudes, so that migrants from lower latitudes may increasingly arrive at breeding grounds after the appearance of seasonal resources. To explore this possibility, we compared dates of first arrival of Broad-tai

McKinney, Amy M, CaraDonna, Paul J, Inouye, David W2021DOI: 10.6084/m9.figshare.3554139.v1
Dataset

Why are some plant—nectar robber interactions commensalisms?

Many plants that bear hidden or recessed floral nectar experience nectar robbing, the removal of nectar by a floral visitor through holes pierced in the corolla. Although robbing can reduce plant reproductive success, many studies fail to find such effects. We outline three mechanistic hypotheses th

Heiling, Jacob M.2021DOI: 10.5061/dryad.bh6hs70Cited 1 times
Dataset

Habitat preference of an herbivore shapes the habitat distribution of its host plant

Plant distributions can be limited by habitat-biased herbivory, but the proximate causes of such biases are rarely known. Distinguishing plant-centric from herbivore-centric mechanisms driving differential herbivory between habitats is difficult without experimental manipulation of both plants and h

Alexandre, Nicolas M, Humphrey, Parris T, Gloss2021DOI: 10.5281/zenodo.1321387
Dataset

The effect of demographic correlations on the stochastic population dynamics of perennial plants

Understanding the influence of environmental variability on population dynamics is a fundamental goal of ecology. Theory suggests that, for populations in variable environments, temporal correlations between demographic vital rates (e.g., growth, survival, reproduction) can increase (if positive) or

Compagnoni, Aldo2021DOI: 10.5061/dryad.mp935Cited 1 times
Dataset

Phenotypic plasticity and adaptive evolution contribute to advancing flowering phenology in response to climate change

Anthropogenic climate change has already altered the timing of major life history transitions, such as the initiation of reproduction. Both phenotypic plasticity and adaptive evolution can underlie rapid phenological shifts in response to climate change but their relative contributions are poorly un

Anderson, Jill T.2021DOI: 10.5061/dryad.68mj4Cited 1 times
Dataset

Shifts in water availability mediate plant-pollinator interactions

Altered precipitation patterns associated with anthropogenic climate change are expected to have many effects on plants and insect pollinators, but it is unknown if effects on pollination are mediated by changes in water availability. We tested the hypothesis that impacts of climate on plant pollina

Gallagher, M. Kate, Campbell, Diane2021DOI: 10.7280/D17C7XCited 1 times
Dataset

Data for Context-dependent biotic interactions control plant abundance across altitudinal environmental gradients, 2014, 2016, Colorado, USA.

Many biotic interactions influence community structure, yet most distribution models for plants have focused on plant competition or used only abiotic variables to predict plant abundance. Furthermore, biotic interactions are commonly context-dependent across abiotic gradients. For example, plant-pl

Joshua S Lynn, Melanie R Kazenel, Stephanie N Kivlin2021DOI: 10.6073/pasta/953d0af267ddb6a0ddb970bff3218a61
Dataset

Arthropod abundance censused on the host plant Ligusticum porteri near Gothic, CO.

The objective of this study is to understand how climate cues affect the abundance and phenology of aphids and the arthropods with which they interact. These data were collected in 20 populations of the host plant (Ligusticum porteri) along an elevation gradient near Gothic, CO, USA. We randomly-sel

Emily Mooney2021
Dataset

POLLEN ANALYSIS AT 5GN817, CHANCE GULCH, COLORADO WITH SUPPORTING ARCHAEOCLIMATE MODELS FROM GUNNISON, COLORADO.

The Chance Gulch site, 5GN817, is an 8000 year old camp located about 2.5 miles southeast of the town of Gunnison, Colorado. The site is situated within the sagebrush community, though pine and aspen trees are within view. Nine stratigraphic samples were analyzed to determine paleovegetation and pal

R.A. Varney2021
Dataset

Depth-resolved seasonal porewater chemistry measurements from 3 locations around Meander A of the East River, Colorado

Depth-resolved pore water samples were recovered from 3 locations around Meander A in the East River near Crested Butte, CO, USA for a suite of physiochemical analyses. Supplemental_Information.csv contains water quality measurements including pH, conductivity, temperature, ORP, TDS, O2 concentratio

Saup C, Bryant S, Nelson A2021DOI: 10.15485/1504779Cited 2 times
Dataset

Geochemical exports to river from the intrameander hyporheic zone under transient hydrologic conditions, Water Resources Research: Dataset.

To understand how redox processes influence carbon, nitrogen, and iron cycling within the intrameander hyporheic zone, we developed a biotic and abiotic reaction network and incorporated it into the reactive transport simulator PFLOTRAN. Two dimensional reactive flow and transport simulations were p

Dwivedi D2021DOI: 10.21952/WTR/1506940
Article

Geochemical Controls on Release and Speciation of Fe(II) and Mn(II) From Hyporheic Sediments of East River, 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. However, the geochemical controls on the release and speciation of Fe(II) and Mn(II) in these

Dong W., Bhattacharyya A., Fox P. M.2020Frontiers in WaterDOI: 10.3389/frwa.2020.562298Cited 15 times
Document

City of Gunnison Parks, Recreation and Open Space Master Plan Potential Residential Buildout – Scenario 1

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gunnison_basin
Document

Chapter One What is DMEA's Board of Directors? And What is it Good For?

Those are questions we ask ourselves a lot. The easiest thing is to list what we can’t do. We can’t read meters. We can’t turn the power back on after lightning or a fallen tree knocks it out. We can’t enroll new customers or turn the power off to non- payers. And we wouldn’t know where to begin to