287 results — topic: Alpine & Subalpine Ecology

Dataset

Microclimate observations associated with snowmelt experiment gradient sites, East River, Colorado, 2017 to 2020

The timing of snowmelt in mountain systems is a main driver of vegetation phenology and production, as well as recharge of soil moisture and ground water. Decreases in maximum snowpack and warmer spring temperatures have led to a higher frequency of early snowmelt. This study combines a natural elev

Heidi Steltzer2021DOI: 10.15485/1842907
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

Microclimate observations associated with snowmelt experiment gradient sites, East River, Colorado, 2017 to 2020

The timing of snowmelt in mountain systems is a main driver of vegetation phenology and production, as well as recharge of soil moisture and ground water. Decreases in maximum snowpack and warmer spring temperatures have led to a higher frequency of early snowmelt. This study combines a natural elev

Heidi Steltzer, Chelsea Wilmer, Amanda Henderson2021DOI: 10.15485/1842907
Dataset

Waterlevel, geochemical, and borehole data from Rifle, Colorado from 2006-2016

The files included in this data package provide site wide water level data, geochemical data, and borehole information associated with the Rifle site in Colorado during the Lawrence Berkeley National Lab (LBNL) led Integrated Field Research Challenge (IFRC) and Scientific Focus Area (SFA) research p

Kenneth Williams, Chad Hobson, Mark J. Robbins2021DOI: 10.15485/1797433
Dataset

Waterlevel, geochemical, and borehole data from Rifle, Colorado from 2006-2016

The files included in this data package provide site wide water level data, geochemical data, and borehole information associated with the Rifle site in Colorado during the Lawrence Berkeley National Lab (LBNL) led Integrated Field Research Challenge (IFRC) and Scientific Focus Area (SFA) research p

Kenneth Williams, Chad Hobson, Mark J. Robbins2021DOI: 10.15485/1797433
Dataset

Waterlevel, geochemical, and borehole data from Rifle, Colorado from 2006-2016

The files included in this data package provide site wide water level data, geochemical data, and borehole information associated with the Rifle site in Colorado during the Lawrence Berkeley National Lab (LBNL) led Integrated Field Research Challenge (IFRC) and Scientific Focus Area (SFA) research p

Kenneth Williams, Chad Hobson, Mark J. Robbins2021DOI: 10.15485/1797433
Dataset

Phenological responses to climate change do not exhibit phylogenetic signal in a subalpine plant community

Phylogenetic relationships may underlie species-specific phenological sensitivities to abiotic variation and may help to predict these responses to climate change. Although shared evolutionary history may mediate both phenology and phenological sensitivity to abiotic variation, few studies have expl

CaraDonna, Paul J, Inouye, David W2021DOI: 10.6084/m9.figshare.c.3307416.v1
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

Flowering phenology in subalpine meadows: Does climate variation influence community co-flowering patterns?

Climate change is expected to alter patterns of species co-occurrence, in both space and time. Species-specific shifts in reproductive phenology may alter the assemblages of plant species in flower at any given time during the growing season. Temporal overlap in the flowering periods (co-flowering)

Forrest, Jessica, Inouye, David W, D. Thomson, James2021DOI: 10.6084/m9.figshare.c.3301874.v1
Dataset

Appendix B. Phenological shifts and phenological sensitivity to snowmelt date and summer temperature data used in analyses.

Phylogenetic relationships may underlie species-specific phenological sensitivities to abiotic variation and may help to predict these responses to climate change. Although shared evolutionary history may mediate both phenology and phenological sensitivity to abiotic variation, few studies have expl

CaraDonna, Paul J, Inouye, David W2021DOI: 10.6084/m9.figshare.3561351.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

Low predictability of energy balance traits and leaf temperature metrics in desert, montane, and alpine plant communities

Leaf energy balance may influence plant performance and community composition. While biophysical theory can link leaf energy balance to many traits and environment variables, predicting leaf temperature and key driver traits with incomplete parameterizations remains challenging. Predicting thermal o

Blonder, Benjamin, Escobar, Sabastian, Kapás, Rozália2021DOI: 10.6078/D1NQ59Cited 1 times
Dataset

Phenological responses to multiple environmental drivers under climate change: insights from a long-term observational study and a manipulative field experiment

Climate change has induced pronounced shifts in the reproductive phenology of plants, yet we know little about which environmental factors contribute to interspecific variation in responses and their effects on fitness. We integrate data from a 43-year record of first flowering for six species in su

Wadgymar, Susana M.2021DOI: 10.5061/dryad.qr5vdCited 1 times
Dataset

Does environmental heterogeneity drive functional trait variation? A test in montane and alpine meadows

While community-weighted means of plant traits have been linked to mean environmental conditions at large scales, the drivers of trait variation within communities are not well understood. Local environmental heterogeneity (such as microclimate variability), in addition to mean environmental conditi

Stark, Jordan2021DOI: 10.5061/dryad.772h7Cited 1 times
Dataset

Frost sensitivity of leaves and flowers of subalpine plants is related to tissue type and phenology

Harsh abiotic conditions such as low temperatures that lead to spring and summer frost events in high-elevation and high-latitude ecosystems can have strong negative consequences for plant growth, survival, and reproduction. Despite the predicted increase in episodic frost events under continued cli

CaraDonna, Paul J, Bain, Justin A2021DOI: 10.5061/dryad.v4cv6Cited 1 times
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

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

Sorensen P, Brodie E, Beller H2021DOI: 10.21952/WTR/1573029Cited 2 times
Dataset

Hillslope subsurface flow and transport data for the PLM transect in East River, Colorado.

This file contains data used to calculate subsurface flow and transport at the Pumphouse Lower Montane (PLM) hillslope transect. Information includes locations, weather data, hydraulic conductivities, hydraulic head profiles, soil water profiles, depths to the water table, specific conductance (SC)

Tokunaga T, Carroll R, Conrad M2021DOI: 10.21952/WTR/1506941Cited 1 times
Dataset

Plant species distribution within the Upper Colorado River Basin estimated by using hyperspectral and LiDAR airborne data.

This package is part of the Watershed Function SFA project and contains a remote sensing dataset acquired at the East River, Colorado. The remote sensing dataset is composed of vegetation maps computed from hyperspectral and LiDAR airborne data acquired by the NEON team in June 2018. The maps show t

Falco N, Balde A, Breckheimer I2021DOI: 10.15485/1602034Cited 3 times