Protocols
12 protocols
Flowering phenology census
Tagged individual plants are monitored twice weekly throughout the growing season to record bloom start dates, bloom end dates, and total flower production. This provides individual-level phenological...
Snowmelt manipulation using shade cloths
Shade cloths suspended 3m above treatment plots accelerate snowmelt by 5-7 days when snowpack reaches ~1m depth, simulating earlier spring snowmelt conditions. Cloths removed after complete treatment ...
Alpine plant phenology monitoring with snowmelt timing
Weekly monitoring of alpine plant flowering phenology coupled with snowmelt date recording to assess environmental effects on plant reproductive timing. Focuses on species-specific responses to fine-s...
correlation analysis
Statistical analysis using mixed effects models to evaluate relationships between plant clumping treatment and temperature responses while accounting for random effects of individual plants and sampli...
NOAA weather station monitoring
Long-term systematic collection of first sighting and median activity dates for plants, insects, mammals, amphibians and birds in a high-elevation montane ecosystem. Standardized protocols track flowe...
NDVI remote sensing
Time-lapse UAV surveys using RGB and multispectral cameras to monitor vegetation indices (NDVI, GCC) and plant height changes across a hillslope transect during growing seasons.
Densiometer canopy coverage estimation
Vegetation greenness assessment using Green Chromatic Coordinate as proxy for evapotranspiration rates. Calculates green reflectance normalized by total visible flux from masked vegetation areas.
Controlled frost sensitivity chamber experiment (Plantae)
Plant tissues are subjected to controlled freezing temperatures in a programmable chamber to determine frost damage thresholds. Temperatures are gradually reduced to simulate natural frost events, the...
MODIS EVI time series analysis
Harmonized Landsat 8 and Sentinel-2 imagery processed through continental-scale algorithms to create vegetation index time series and estimate phenophase transition timing at 30 m resolution.
Temperature-behavior correlation analysis
Linear regression analyses testing relationships between daily temperature deviations and hummingbird visitation rates. Multiple analytical approaches including yearly regressions, temperature binning...
Green Chromatic Coordinate Camera Monitoring
Time-lapse photography using Moultrie M40 cameras mounted at 45° angle to capture plot-level vegetation greenness and calculate Green Chromatic Coordinate values for phenology analysis.
Seed burial experiments
Seed-burial and greenhouse germination experiments to estimate seed bank-related vital rates including seed germination and stasis.