Protocols

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

Calculation of interaction turnover between plant-pollinator networks at different sites by comparing shared taxa and their interaction frequencies. Produces metrics of rewiring occurrence and interac...

Blood slide preparation and microscopic examination for haemosporidian parasite identification using Wright-Giemsa staining and compound microscopy with voucher image verification.

Depth-resolved sampling and analysis of subsurface materials for mineralogical composition, organic matter content, and spatial distribution of weathering products from soil through bedrock.

Autonomous sampling system using osmotic pumps to continuously collect water samples over extended periods for chemical analysis. Tubing inlets placed at different depths collect time-integrated sampl...

Camera traps deployed along trails in a stratified random design to detect wildlife presence and estimate occupancy while accounting for detection probability. Cameras moved weekly within zones to sam...

Controlled factorial experiment manipulating both water availability and pollen supplementation to test for interactive effects on plant reproduction.

Standard gravimetric determination of soil moisture content using oven-drying method at 100°C for 24 hours with 2mm sieving to remove rocks and organic debris.

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

Systematic point sampling along transects to quantify vegetation composition and forage quality metrics. Modified from standard methods described in Wilkening et al. 2011.

Mark-release-recapture protocol for tracking individual butterfly movements among meadow patches using unique felt pen markings and systematic site visits.

Standard metagenomics pipeline involving assembly with MEGAHIT, binning with multiple tools, dereplication, and taxonomic classification using GTDB-tk.

Pooled whole genome sequencing approach using DNA from multiple individuals per population to identify SNPs associated with environmental variables and population differentiation patterns.

Time-calibrated phylogenetic analysis using multiple genes and both maximum likelihood and Bayesian approaches to estimate evolutionary relationships and timing of trait evolution.

Standardized protocol for determining dry mass of plant tissues through controlled oven drying at 60°C for 48 hours followed by precision weighing to calculate dry matter content and mass ratios.

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.

Systematic presentation of conspecific, heterospecific competitor, and control songs to territorial males followed by standardized behavioral observation and scoring. Uses randomized treatment order w...

Laboratory protocol for preparing yeast-inoculated synthetic nectar with species-specific concentrations and incubation conditions. Synthetic nectar designed to match natural nectar composition.

A two-phase field protocol using training baits scented with plant chemicals followed by two-choice tests to assess whether ants form associative memories linking plant odors to carbohydrate rewards. ...

Standard protocol for isolating apatite grains from crushed rock samples using density and magnetic separation techniques followed by hand picking under microscope.

Controlled experiment using marker bacterium to track microbial transfer from inoculated donor flowers to recipient flowers via butterfly foraging behavior.

Opportunistic collection of adult and larval mosquitoes across elevational gradients using standardized collection techniques. Adults collected during blood-feeding attempts, larvae sampled from diver...

Mathematical method for calculating relative dominance ranks from pairwise interaction outcomes that is tolerant of missing data and accounts for group size variation.

Plants were subjected to progressive water stress by withholding irrigation to create a gradient of soil moisture conditions. This experimental design allowed examination of plant responses across a r...

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...

Standardized greenhouse cultivation of field-collected plant accessions under controlled temperature, light, and nutrition regimes for phenotype characterization.

Collection and integration of climate variables from multiple databases including temperature, solar radiation, snow metrics, and topographic factors to characterize environmental conditions at study ...

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...

Extended X-ray absorption fine structure analysis of Fe-bearing colloids using synchrotron radiation with cryogenic sample preparation and shell-by-shell fitting to determine molecular coordination en...

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

Seeds were treated with Benomyl fungicide at 4°C to remove endophytic fungi, creating endophyte-free plants for comparison with naturally endophyte-positive and endophyte-negative plants.

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...

Using Generalized Additive Models to estimate emergence, peak, and senescence timing from sparse time-series abundance data. Models fit abundance curves and extract phenological metrics from first and...

Integration of field GPS coordinates with multiple spatial datasets (elevation, slope, land cover, climate) to characterize environmental conditions at population locations. Uses established spatial d...

Used raster analysis in ArcGIS to identify suitable ground squirrel habitat by combining landcover and canopy height data, then calculated distance-from-cover metrics using buffer operations. This met...

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

Standardized method using funnel, filter paper and drainage to measure maximum water holding capacity of soil samples. Involves saturating soil, draining for set time, then oven-drying to calculate wa...

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.

Aqueous CO2 concentrations determined by headspace equilibration in glass bottles followed by IRGA analysis of extracted headspace gas with correction factors applied.

Method for extracting and analyzing historical herbarium specimen data to reconstruct the life and career patterns of past collectors, including temporal and spatial analysis of collecting activities.

Standard protocol for preserving unidentifiable specimens in ethanol, followed by pinning and taxonomic identification in laboratory conditions.

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.

Maximum likelihood phylogenetic analysis of full genome sequences using MUSCLE alignment and Tamura-Nei evolutionary model to determine relationships between outbreak isolates and assess overwintering...

Comprehensive search of Web of Science databases for manipulative experiments on terrestrial carbon cycling responses to global change drivers, followed by systematic screening, data extraction, and q...

PCR amplification of microsatellite loci followed by capillary electrophoresis for allele sizing and polymorphism assessment.

Generation of null models that maintain interaction totals per species while randomizing interaction patterns, followed by permutation tests to assess significance of observed network metrics relative...

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

Controlled laboratory experiment comparing survival, growth, and tag retention between PIT-tagged and control salamanders over 90 days to validate tag safety for small amphibians.