Concepts

A measure of community diversity that accounts for both species richness and relative abundance, calculated using the Shannon-Weiner index

Plant fitness measured through various components including fruit set, seed production, and seeds per plant

The proportion of phenotypic variation in a trait that is due to genetic variation, estimated using parent-offspring regression methods

The total number of offspring that an individual successfully produces and rears to independence over their entire lifetime

Normalized Difference Vegetation Index, derived from satellite imagery to estimate vegetation greenness and photosynthetic activity

Population size or density of individual species within a habitat

Changes in network composition between treatments, partitioned into species turnover versus interaction rewiring components

Network statistics that quantify the importance or influence of individuals within social networks, including degree, closeness, betweenness, and eigenvector centrality

The accuracy of predicted values using root mean square error to assess model performance

The degree to which specialists interact with subsets of species that generalists interact with, measured by weighted NODF

The ratio of streamflow produced per unit of monsoon precipitation input compared to other seasonal water sources

Measure of an animal's physical state, often assessed through body mass relative to size

A proxy for subsurface moisture conditions calculated as the log ratio between upslope contributing area and slope angle

Statistical measure of variation used to quantify family-guild variation and compare across different taxonomic groups

Measure of foraging specialization using standardized Hurlbert's niche breadth, where values closer to 1 represent generalized foraging and values closer to 0 represent specialized foraging

The ratio of dry root weight to total dry plant weight, used as an indicator of soil nutrient availability with higher values indicating nutrient-poor conditions

A model selection criterion that balances goodness of fit with model complexity by penalizing models with more parameters

Statistical measure of repeatability that tests individual consistency of a continuous variable by comparing within-subject and between-subject variation

Population size below which populations are unable to rebound due to risks associated with genetic, demographic, and environmental stochasticity

A network's sensitivity to simulated extinction of plants or pollinators, measured as secondary extinction cascades

Scaled measure of how population growth rate responds to changes in environmental drivers

The average number of offspring produced by a typical individual during its life, calculated as the product of offspring number and survival probability

Measure of the relative contribution of each predictor variable obtained by calculating mean decrease in mean square error

A statistic derived from information theory that quantifies individuality by calculating inter-individual variation relative to intra-individual variation

A measure of niche overlap calculated as SI = 1 - (1/2) Σᵢ |pᵢₖ - pⱼₖ| where values approach 1 when resource use curves coincide perfectly and approach 0 when they don't overlap

A quantitative measure of uncertainty about an outcome of a draw from a probability distribution

Number of nests per unit area, calculated by dividing number of nests in each habitat by total area

A method for calculating dominance based on an individual's relative number of wins or losses that is tolerant of missing pair-wise interactions and weights wins highly

A measure comparing the proportion of prey in predator diet to proportion in environment to detect selection or avoidance

F-statistics (FIS, FST, FIT) measuring genetic differentiation and inbreeding at different hierarchical levels

Measure of the level of inbreeding within a population, with values close to 1.0 indicating high levels of inbreeding