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...

Collection and microscopic analysis of pollen grains deposited on wildflower stigmas using pink fuchsin gel mounting and reference collection for identification. Quantifies both conspecific and hetero...

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

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...

A method to experimentally add nectar rewards to naturally pollen-only rewarding flowers by depositing measured volumes of artificial nectar solution onto flower structures accessible to pollinators. ...

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 ...

Experimental addition of outcross pollen to flowers to test whether natural pollination limits plant reproductive success, comparing reproductive output between hand-pollinated and naturally pollinate...

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...

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...

Beetles were captured using speed nets, marked with tungsten needle dot codes on elytra, and released for recapture monitoring to estimate population sizes and dispersal patterns. Elytral condition wa...

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...

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 ...

Multi-temporal soil moisture measurements using TDR probe combined with soil coring and laboratory processing to determine moisture content, bulk density, and texture characteristics across environmen...

A 2×2 factorial experiment combining passive warming using open-top chambers with dominant plant species removal across elevational gradients at multiple global mountain sites to test interactive effe...

A factorial field experiment manipulating snowmelt timing using black shade cloth and summer precipitation using rainout shelters in a split-plot design to simulate climate change effects.

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...

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...

Multi-site common garden experiment using controlled crosses to partition genetic and environmental variance in vegetative and floral traits across a hybrid zone. Seeds from multiple genetic families ...

Paired experimental design comparing floral development and longevity between plants receiving daily road dust applications versus undusted controls, with detailed tracking of flower developmental sta...

Weekly monitoring of fly oviposition on flowers and assessment of fruit damage by predispersal seed predators including fly larvae and caterpillars to quantify reproductive success and seed predation ...

Volatile organic compounds were sampled from single flowers using dynamic headspace sampling, then analyzed with thermal desorption gas chromatography-mass spectrometry to identify and quantify floral...

Experimental manipulation of summer precipitation levels (doubled, halved, ambient) to assess effects on plant physiological and fitness traits in a common garden setting over multiple years.

A controlled field experiment testing the effects of nitrogen addition and reduction on plant community composition over 8 years. Annual percent cover monitoring tracked responses of invasive and nati...

Measurement of water-use efficiency differences between plant sexes using leaf carbon isotope ratios (δ13C) to understand mechanistic basis of sex-specific climate responses.

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.

Size-structured population model that incorporates climate effects on vital rates to project population dynamics and calculate population growth rates. Uses continuous size distributions and matrix pr...

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.

Quantified natural selection on floral traits by measuring relationships between trait values, pollinator visitation rates, and reproductive success. Calculated standardized selection differentials to...

Controlled experiment using artificial flowers with discrete bullseye phenotypes exposed to UV-present vs UV-absent treatments to test UV-mediated selection on floral traits. Pollen viability measured...

Time-lapse photography of individual flowers using motion-activated cameras to capture and quantify hummingbird feeding visits. Combined with machine learning image processing to automate detection.

Field census method to quantify pollen receipt patterns in populations of gynodioecious plants with varying sex ratios and floral densities. Involves systematic counting of flowers by sex and measurem...

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...

Experimental clipping treatment designed to reduce plant photosynthetic capacity by approximately 50% through removal of stems. Used to simulate herbivory stress and examine effects on mycorrhizal ass...

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.

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

Flowers are bagged to prevent natural parasitism, then exposed to controlled introductions of parasitoid wasps or ambient parasitoid activity, followed by assessment of parasitism effects on seed pred...

Statistical approach to test causal pathways between herbivory, plant characteristics, and reproductive output using multiple linked regression models with model selection based on information criteri...

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...

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

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.

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...

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...

Factorial experiment using wire mesh and chicken wire fencing to exclude mammalian herbivores (ungulates and gophers) from transplanted alpine plants across elevational gradients. Plants monitored for...

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...

A systematic approach to creating identification keys by compiling species lists from authoritative sources, gathering morphological descriptions, and structuring binary choices that eliminate possibi...