Protocols

Systematic observation of plant-pollinator interactions along fixed transects with timed observations and selective insect capture for identification. Plants receiving sufficient visits are analyzed f...

Systematic observation of plant-pollinator interactions along established transects with standardized time intervals to capture natural temperature variation. Pollinator specimens collected for identi...

Belt transect method for censusing lupine populations and collecting inflorescences for morphological analysis across sympatric and allopatric sites. Combines population surveying with systematic flor...

A field-based protocol for extracting nectar from flowers that have been exposed to bee visitation, then quantifying ethanol content using enzyme-based assays. Flowers are pre-isolated to prevent nect...

Installation and monitoring of artificial wooden nesting-blocks with multiple cavity sizes to track solitary bee nesting activity, timing, and reproductive success. Involves regular visual monitoring ...

Quantitative analysis of pollen grain composition in bee provisions using compound microscopy. Pollen samples stained with fuchsin and examined at 100× magnification with systematic transect counting ...

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...

Experimental removal of flower buds to simulate frost damage effects, allowing comparison of microclimate conditions between plots with and without flower displays in subalpine meadow.

Laboratory experiment transferring bee eggs between different pollen provision types to test effects on larval survival. Eggs moved between Taraxacum and native Asteraceae provisions in a balanced rec...

Collection of female halictid bees at nest sites using nets or vacuum devices, with individual storage and cryopreservation for chemical analysis. Includes morphological measurement and ovarian stage ...

A factorial experiment manipulating both flowering phenology (by moving plants between elevations) and water availability (through differential watering regimes) using potted native plants in field ar...

Pollen-transport interactions were analyzed using network metrics including weighted connectance, linkage density, weighted nestedness, specialization and robustness calculated with R package bipartit...

Floral resource availability was quantified by counting flowers while walking in progressively larger circles from a central point until reaching 100 flowers or 100m radius. Density was calculated as ...

Experimental manipulation of natural floral orientations combined with pollen supplementation to test effects on seed set and female fitness.

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...

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

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

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...

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

Controlled removal of the most abundant Bombus species from plots using targeted aerial netting during 4-hour manipulation periods, compared to 4-hour control periods with no removal. Pollinator exclu...

Calculation of cumulative growing degree days from weather station data using species-specific base temperatures, correlated with biological events through linear regression to assess temperature-depe...

Statistical analysis of pollinator diversity using Shannon Diversity Index with ANOVA and post-hoc testing to compare plant visitation diversity between pollinator groups.

Application of fine-mesh bags over flowers to prevent pollinator access while maintaining airflow and light penetration. Uses Del Star polyethylene bags with 0.5mm pores applied to approximately 50% o...

Analysis of larval fecal pellets to assess digestive efficiency by measuring frass mass relative to provision mass and quantifying undigested pollen grains using microscopy and staining techniques.

Laboratory feeding trials exposing individual bumblebee workers to alkaloid-enriched sucrose solutions followed by behavioral activity scoring to assess direct consumptive effects of nectar alkaloids.

Controlled heating and cooling assays to determine critical thermal maximum (CTmax) and minimum (CTmin) temperatures of bumblebees under field conditions. Includes environmental optimization trials to...

Extraction of cuticular compounds from individual bee specimens using n-pentane solvent followed by gas chromatographic analysis with flame ionization detection for chemical profile characterization. ...

Bayesian mixed effects modeling of body size distributions using four statistical moments (mean, variance, skew, kurtosis) to characterize trait filtering processes. Uses robust measures and hierarchi...

Statistical approach to identify correlations between species traits and environmental variables by calculating Pearson correlations between climate variables and trait values across species, weighted...

Systematic search and evaluation of published literature examining relationships between phenological shifts and demographic consequences using specific search criteria in Web of Science.

Standardized biochemical assays for quantifying protein, lipid, and carbohydrate content in pollen samples. Uses Bradford assay for proteins and sulfo-phospho-vanillin and anthrone-sulfuric acid assay...

Method to quantify microbial load on different butterfly body parts by direct plating on agar media. Samples tarsi/proboscis by dragging across plate and thorax by washing technique.

Experimental transplantation of completed mason bee nests from low to high elevation sites to test effects of season length and climate on offspring development. Uses trap-nest monitoring followed by ...

Comprehensive method for extracting quinolizidine and piperidine alkaloids from plant tissues using acid-base extraction followed by GC/FID and GC/MS analysis for identification and quantification.

Custom-built RFID system using paired antenna cards and microSD data logging to continuously track individual bee movements in and out of nest boxes. System records timestamps for each entrance and ex...

Statistical method to compare species richness across samples with different sampling efforts by generating rarefaction curves. Uses individual-based approach to generate rate of visitor richness accu...

Simulations to model how fine-grained distribution of non-native resources affects native consumer population dynamics.