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Protocols

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16 protocols

analyticalstandardized

McGonigle method (Poaceae)

Microscopic assessment of arbuscular mycorrhizal fungal colonization and other fungal colonization of plant roots using crosshair intercept method and grid line-intercept method for soil fungi.

microscopy23 papersmicroscope, grid line-intercept setup
analyticalstandardized

DNA metabarcoding

Surface sterilization of plant tissues followed by DNA extraction and high-throughput sequencing of the ITS region to characterize fungal endophyte communities. Community composition and diversity met...

molecular20 papersplastic resealable bags, −20°C freezer...
analyticalstandardized

Mantel test

Calculation of multiple phylogenetic diversity metrics for plant communities using established phylogenetic trees and null model approaches to test for phylogenetic clustering or overdispersion.

phylogenetic analysis10 papersR software, picante package...
analyticalstandardized

species-area relationship

Nested sampling design to construct species-area relationships across multiple spatial scales by subdividing plots into equal-area quadrats and averaging species counts across equivalent areas.

macroecological pattern analysis8 papersPython with numpy, scipy, matplotlib libraries
analytical

community-weighted mean

Multivariate analysis technique to quantify community responses over time. Treatment weights indicate response magnitude and species weights show individual taxa responses.

multivariate statistics5 papers
analytical

Habitat-damage correlation analysis (Aves)

Quantitative analysis of the relationship between sapsucker damage patterns on aspen trees and proximity to willow habitat, using distance measurements and damage assessment.

spatial relationship assessment4 papersdistance measuring equipment, damage assessment tools
analytical

Historical herbarium database analysis for biographical reconstruction

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.

historical analysis3 papersConsortium of Southern Rocky Mountain Herbaria database, Spreadsheet software...
analyticalstandardized

U.S. Geological Survey sediment preparation procedures

Extraction of iron and manganese from sediments using 0.5 N HCl with hydroxylamine hydrochloride in anaerobic conditions, followed by ICP-AES analysis. This method targets metals associated with reduc...

geochemical extraction3 papersHDPE bottles, 0.5 N HCl...
analytical

Castilleja haustorial connection microscopy (Orobanchaceae)

Root systems around Castilleja plants are excavated, cleaned, and examined microscopically to identify haustorium-host connections for direct detection of parasitic relationships. Host species are ide...

parasitism detection2 papersshovels, collection containers...
analytical

Lichen field identification

Field identification of lichen species using chemical spot tests with potassium hydroxide, morphological examination with hand lens, and comparison to field guide keys.

taxonomic identification2 papersPotassium hydroxide, hand lens...
analytical

Nearest neighbor host detection analysis (Orobanchaceae)

Plant species composition within 15cm of Castilleja individuals is compared to random background vegetation to statistically identify overrepresented taxa as potential hosts. This provides an indirect...

spatial association2 papersmeasuring tape or calipers, data sheets
analytical

Shannon Diversity Index

Calculation of Shannon diversity index (ln type) and Simpson dominance index (1-D) from species count data using online biodiversity calculator. Standard ecological diversity metrics for comparing com...

diversity metrics2 papersOnline biodiversity calculator
analytical

IUCN Red List Area of Occupancy calculation

Calculation of species area of occupancy (AOO) using filtered GBIF occurrence records and standardized grid-based methods following IUCN guidelines for conservation assessment.

biogeographic analysis1 paperR software, red package...
analytical

LC-MS plant metabolomics (Poaceae)

Extraction of plant metabolites using methanol/acetonitrile/water solvent followed by liquid chromatography-mass spectrometry analysis. Characterizes plant metabolomic profiles for correlation with fu...

metabolomics1 paperHPLC grade solvents, Synergi 2.5 μm reverse-phase Hydro-RP column...
analytical

GIS polygon digitization

Using ArcGIS to digitize habitat polygons and generate random sampling points within appropriate community types.

0 papers
analytical

Length-mass relationship conversion

Estimation of invertebrate biomass using established taxon-specific length-mass relationships and scaling to aerial measures.

0 papers