816 results — topic: Alpine & Subalpine Ecology
hmworsham/er-forest-structure: Abiotic influences on continuous conifer forest structure across a subalpine watershed: RSE review archive
This release archives the code base for the manuscript Worsham et al., "Abiotic influences on continuous conifer forest structure across a subalpine watershed," submitted to Remote Sensing of Environment on July 18, 2024. This archive enables reviewers to view and access analytical code "as-is", i.e
Decomposing an elevational gradient in predation by insectivorous birds
Insectivorous birds have ecologically important effects on prey abundance, behavior, and evolution, and through top-down control birds indirectly reduce herbivory and promote plant growth. While several studies sought to characterize biogeographic patterns in top-down control by birds, variation in
NEON AOP Survey of Upper East River CO Watersheds: Waveform LiDAR Binary Data
The waveform Light Detection and Ranging (LiDAR) data in this package were generated through a National Ecological Observatory Network Airborne Observation Platform (NEON AOP) acquisition over watersheds of interest surrounding Crested Butte, Colorado. The remote sensing imagery acquired by the NEON
NEON AOP Survey of Upper East River CO Watersheds: Waveform LiDAR Binary Data
The waveform Light Detection and Ranging (LiDAR) data in this package were generated through a National Ecological Observatory Network Airborne Observation Platform (NEON AOP) acquisition over watersheds of interest surrounding Crested Butte, Colorado. The remote sensing imagery acquired by the NEON
NEON AOP Survey of Upper East River CO Watersheds: Waveform LiDAR Binary Data
The waveform Light Detection and Ranging (LiDAR) data in this package were generated through a National Ecological Observatory Network Airborne Observation Platform (NEON AOP) acquisition over watersheds of interest surrounding Crested Butte, Colorado. The remote sensing imagery acquired by the NEON
Hydrological control of chemical weathering and rock-carbon fluxes: East River, Colorado
This data package is used in the manuscript entitled “Hydrological control of chemical weathering and rock-carbon fluxes”. The field study was conducted in a lower montane hillslope of the East River watershed, underlain by Mancos Shale, within the lower 140 m section of a transect that extends near
Geophysical and Environmental Monitoring Data, and Subsurface Flow Modelling Results for Chicken Bone Meadow, Mt. Snodgrass, Crested Butte, CO
This dataset includes geoelectrical monitoring data acquired between October 2021 and November 2022, soil moisture and temperature data, groundwater data obtained from borehole SNIB covering the period from June 2021 to September 2022, and hydrological modelling results. The data were acquired to in
Comparing predictive measures and model functions for estimating plant biomass: lessons from a sagebrush–rabbitbrush community
It is indicated that accurate predictive models of forb and shrub biomass can frequently be easily obtained using simple linear regression and cover or volume data.
Investigating Microtopographic and Soil Controls on a Mountainous Meadow Plant Community Using High-Resolution Remote Sensing and Surface Geophysical Data
AbstractThis study aims to investigate the microtopographic controls that dictate the heterogeneity of plant communities in a mountainous floodplain‐hillslope system, using remote sensing and surface geophysical techniques. Working within a lower montane floodplain‐hillslope study site (750 m × 750
Carbon Dioxide Concentrations and Efflux from Permanent, Semi-Permanent, and Temporary Subalpine Ponds
Small ponds account for a disproportionately high percentage of carbon dioxide emissions relative to their small surface area. It is therefore crucial to understand carbon flow in these ponds to refine the current global carbon budget, especially because climate change is affecting pond hydrology. H
Early snowmelt projected to cause population decline in a subalpine plant
How climate change influences the dynamics of plant populations is not well understood, as few plant studies have measured responses of vital rates to climatic variables and modeled the impact on population growth. The present study used 25 y of demographic data to analyze how survival, growth, and
Gene expression shifts in yellow-bellied marmots prior to natal dispersal
The causes and consequences of vertebrate natal dispersal have been studied extensively, yet little is known about the molecular mechanisms involved. We used RNA-seq to quantify transcriptomic gene expression in blood of wild yellow-bellied marmots (Marmota flaviventer) prior to dispersing from or r
Host-parasite ecology of <i>Baetis bicaudatus</i> mayflies and <i>Gasteromermis sp.</i> nematodes in high-altitude streams
Parasite-induced changes to host dispersal potentially influence the distribution of parasites and infection risk for hosts. Gasteromermis is a castrating endoparasitic nematode that infects both males and female mayflies (Baetis bicaudatus) but feminizes male hosts and manipulates them to disperse
Comparing detritus breakdown rates with and without detritivores in subalpine ponds with different hydroperiods
It is widely accepted that in stream systems, detritivores accelerate the breakdown of detritus that has been “conditioned” by microbial decomposers. By accelerating the breakdown of dead plant material, detritivores release nutrients and smaller food particles that are used by downstream plants and
Characterizing nectar content in wet and dry subalpine meadows during an extreme summer drought
Pollinating bees visit flowers in order to forage for nectar and pollen, their major sources of nutrition. The plant communities that a bee interacts with vary across time and space, as different flower species dominate different habitats. One key driver of the spatial variation in plant communities
Impacts of drought gradient on pollen limitation in flowers in dry subalpine meadows
The Effect of Climate Change on Plant Communities in the Rocky Mountains: How floral traits differ along an elevational gradient and in reciprocally transplanted communities
Alpine zones are characterized by climatic conditions that can vary over short vertical distances. Therefore, elevational gradients have been used to study how changes in climate can influence plant form, function, and diversity. In my study, I examined floral traits in native communities along an e
The Relationship between Soil Properties and Variation in the Morphology and Phenology of non-native mustard plant <i>Thlaspi arvense</i> in Subalpine Meadows
The ability of soil to retain moisture can significantly impact the severity of droughts on plants. Deep, loamy soils retain moisture from snow melt into the dry season more efficiently than shallow, sandy soils that lose water to runoff and percolation. Soil depth and texture are thus significant i
Across Caste Variation of Proboscis Length and Within Caste Phenotype Matching of Subalpine Bumble Bees (<i>Bombus spp.</i>)
Bumble bees (Bombus spp.) are eusocial insects that typically consist of three castes, with each caste emerging and foraging at different times. Bumble bee queens and workers differ morphologically in several measurable traits, but morphological variation within species and within caste has not be
