Protocols

Comprehensive measurement of floral traits (corolla dimensions, anther insertion, petal color, nectar production) and vegetative traits (specific leaf area, trichome density, water-use efficiency) on ...

Twice weekly censuses recording plant vital status, reproductive phenology, and fitness components including flower and fruit production. Weekly assessments of herbivore damage quantify leaf area remo...

Systematic measurement of antipredator escape behavior by approaching focal individuals at standardized speed and recording distances at key behavioral response points. Includes observation of social ...

Comprehensive evaluation of seed production including total fruit counts, viable seed counts per fruit, individual seed mass measurements, and visual/physical viability assessment. Combines quantitati...

Continuous measurement of soil CO2 concentrations at multiple depths using automated sensors to calculate soil CO2 fluxes via gradient approach. Includes soil temperature and moisture monitoring for e...

Comprehensive measurement of vegetative traits including specific leaf area, trichome density, water use efficiency, and percent water content from field-collected leaves using scanning, drying, weigh...

Integration of temperature, precipitation, and snow cover data from multiple weather stations and remote sensing platforms to characterize environmental conditions at marmot colony sites.

Continuous automated monitoring of soil temperature, moisture, and gas concentrations at multiple depths using sensor arrays. Provides high-resolution temporal data on soil microenvironmental conditio...

Continuous collection of local weather data at 5-minute intervals throughout growing seasons to capture fine-scale environmental variation affecting disease dynamics.

Integration of ground-based GPR, manual measurements, and airborne sensors for comprehensive snow property mapping. Combines high-precision point measurements with spatially extensive remote sensing d...

Standardized measurements of wing length and dried body mass components under stereomicroscope to quantify adult fitness proxies and assess elevation effects on body size.

Standardized measurement of floral reflectance spectra using fiber optic probe positioned at fixed distance and angle from flower surface. Spectra collected across 300-700 nm range for input into visu...

A novel approach to measure light response curves for entire plant communities rather than individual plants using tent-based gas exchange measurements across multiple light levels. This method contro...

Multi-parameter assessment of beaver pond physical characteristics including area, depth, flow velocity, and beaver activity indicators to control for habitat differences in community analyses.

Field capture of wild bumblebees followed by temporary immobilization through cold-induced chill coma to enable precise measurement of tongue length and body size. Individuals are released unharmed af...

Year-round automated temperature logging with HOBO sensors to detect snowmelt timing and calculate temperature-precipitation ratios during bee activity periods. Integrates with local weather station d...

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.

Measurement of chlorophyll fluorescence using LI-600 to assess photosynthetic efficiency by quantifying light emission from chlorophyll molecules excited by solar radiation.

Comprehensive measurement of stream physical and chemical parameters including substrate characteristics, water quality, and algal biomass. Provides environmental context for species distribution patt...

Standard increment boring technique to extract tree cores for measuring annual ring widths, then calculating basal area increment over specific time periods to quantify stem growth.

Systematic measurement of plant morphological characteristics (leaf number, leaf area, stalk count, etc.) before plant extraction to develop predictive relationships with total plant biomass. Differen...

Standardized measurement of individual larval dry mass using precision microbalance after oven-drying at controlled temperature. Applied to assess growth and biomass responses to experimental treatmen...

Blood collection and analysis to determine neutrophil and lymphocyte counts for calculating neutrophil-to-lymphocyte ratios as a measure of immune response activity.

Comprehensive measurement of forewing length, wing melanism, and setal length from pinned butterfly specimens using digital micrometry, photography, and microscopy. Wing melanism quantified using stan...

Time-lapse electrical resistivity imaging using dipole-dipole array configuration to map subsurface electrical conductivity patterns and estimate soil moisture distribution across the hillslope.

Standard protocol for measuring leaf traits by scanning fresh leaves, counting trichomes using ImageJ, then drying and weighing leaves to calculate specific leaf area. Uses ImageJ software for digital...

Comprehensive measurement of leaf morphological, physiological, and chemical traits including stomatal conductance, leaf mass per area, nitrogen content, and spectral properties to characterize plant ...

Comprehensive measurement of soil nutrients, moisture, pH, topographic aspect, and interpolated climate variables to characterize abiotic conditions at vegetation sampling sites.

Standardized wet sieving method using Yoder device to determine soil aggregate size distributions. Measures water-stable aggregates across multiple size classes to assess soil structure.

Daily monitoring of individual female butterflies including artificial feeding with sucrose solution and daily egg collection. Measures lifetime reproductive output and adult lifespan under controlled...

Vegetation greenness assessment using Green Chromatic Coordinate as proxy for evapotranspiration rates. Calculates green reflectance normalized by total visible flux from masked vegetation areas.

Continuous infrared thermal imaging of vegetation plots at 5-second intervals from sunrise to sunset using elevated FLIR cameras to capture leaf temperature dynamics across environmental gradients.

Systematic collection and spectrophotometric analysis of flowers across elevation gradients to quantify color variation. Targets pollinator-visible flower regions and converts reflectance to pollinato...

Quantitative measurement of dust particle deposition rates using filter paper disks placed at varying distances from unpaved roads, with microscopic particle counting at standardized sampling points.

Photographs of soil pit faces are overlaid with 1×1 cm grids to systematically score presence or absence of fine and coarse roots in each grid cell, providing depth-resolved estimates of root spatial ...

Plant biomass consumption by herbivores is quantified using before-and-after digital photographs with standardized reference objects. Image analysis software calculates the difference in plant materia...

In-situ measurement of temperature, pH, dissolved oxygen, and barometric pressure at multiple points around each pond during peak photosynthetic activity. Provides standardized water chemistry profile...

Standardized photography protocol using blue light excitation to capture biofluorescence in salamanders under controlled conditions with specific camera settings and positioning.

Continuous temperature logging during incubation using data loggers placed beneath nest lining with ambient controls to measure incubation efficiency and off-bout frequency.

Photography of butterfly landing sites using polarizing lens to measure landscape contrast between landing spots and surrounding areas. Photos analyzed using ImageJ to calculate gray scale contrast va...

Plant cover measured using 1 m² quadrats divided into 1 dm² cells, counting filled cells to nearest 0.25 dm². Height measured to maximum plant extension. Volume calculated as cover × height/10.

Recording male Drosophila courtship songs by placing flies in Petri dish chambers and capturing wing vibration sounds with directional microphone positioned above the chamber roof.

A distributed wireless sensor network approach using tetrahedral microphone arrays to detect and localize animal vocalizations through collaborative Direction of Arrival estimation and Maximum Likelih...

Method to determine egg development stage using candling technique for tracking nest development and timing.

CO2 emission measurement using flow-through respirometry to quantify resting metabolic rate and flight metabolic capacity in individual butterflies. Includes forced flight trials with chamber agitatio...

Measurement of distances from bird survey points to nearest riparian features using aerial photography, field measurements, and GIS analysis to quantify habitat proximity effects.

Systematic measurement of microhabitat features including vegetation height, cover, and structural elements like perches within a standardized 7×7-m grid system across the study area.

Standardized measurement of PAR using quantum light sensors during midday cloudless conditions to quantify light environment across study sites.

Integration of gridMET temperature data, MODIS snowmelt timing, and PARFLOW-CLM soil moisture simulations to create multi-temporal environmental predictor datasets with quantified drought metrics.

Long-term monitoring of subsurface temperatures in pika habitat using buried data loggers to characterize thermal stress and microclimate conditions.