Concepts
8 concepts
phenomenon time
Schoener's index
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
frequency of dividing cells
The proportion of cells undergoing division within a population
PIT tag telemetry
Use of passive integrated transponder tags for remote detection and tracking of individual animals without need for recapture
electivity index
A measure comparing the proportion of prey in predator diet to proportion in environment to detect selection or avoidance
principal component analysis
Statistical method used to identify the structuring factors driving life-history variation and to detect slow-fast continuum patterns
sampling efficiency
Measure of how effectively a sampling method captures target organisms relative to processing time and effort
ash-free dry mass
Standard measure of organic biomass determined by ashing samples to remove inorganic material