Size-structured niche overlap analysis (Libellulidae)

Knowledge graph centered on Size-structured niche overlap analysis (Libellulidae) with 16 nodes and 52 connections. Top connected: Niche overlap and the potential for competition an, aquatic insects, interspecific competition, nutritional niche partitioning, slit emergence traps.

Method synopsis

Novel analytical framework incorporating individual size variation into niche overlap calculations to predict potential for competition versus intraguild predation between species pairs.

Synthesized from method descriptions across 1 paper using this protocol.

Procedure as described in the canonical source

Steps below were extracted from the paper that introduces this protocol — Niche overlap and the potential for competition and intraguild predation between size-structured populations (1992), Ecology. Implementations in other papers (listed below) may differ.

1. Calculate conventional overlap indices
   Calculated spatiotemporal overlap using Hurlbert's L index for all species pairs across 36 spatiotemporal habitat categories, using Schoener's index and MacArthur and Levins' competition coefficient for comparison
   Quantities: 36 habitat categories (4 depths × 9 dates), 12 species = 66 species pairsDuration: Computational analysisConditions: Data analysis
   Equipment: computational tools
2. Calculate size-specific overlap indices
   Calculated Index of Opportunity for Predation (IOP) using predation function based on gape width to head width ratios, and Index of Opportunity for Competition (IOC) using competition function based on size similarities
   Quantities: Calculated for all 66 species pairs using size-specific weighting functionsDuration: Computational analysisConditions: Data analysis
   Equipment: computational tools

Typical Equipment

• computational tools

Output Measurements

• Index of Opportunity for Predation (IOP)
• Index of Opportunity for Competition (IOC)
• conventional overlap indices

Papers Using This Protocol (1)

Species Studied With This Protocol