Chao1 richness estimator

Knowledge graph centered on Chao1 richness estimator with 12 nodes and 24 connections. Top connected: native plants, Temporal scale-dependence of plant–pollinator netw, non-native plants, invasive plants, Whittaker's dissimilarity index.

Method synopsis

A standardized method for estimating sampling completeness of species and interactions using the Chao1 estimator of asymptotic richness, providing measures of how completely a network represents the true interaction community.

Synthesized from method descriptions across 1 paper using this protocol.

Procedure from a recent peer-reviewed implementation

Steps below were extracted from the most recent peer-reviewed implementation of this protocol in the corpus — Temporal scale-dependence of plant–pollinator networks (2020), Oikos. Implementations in other papers (listed below) may differ.

1. Estimate sampling completeness
   Estimated asymptotic numbers of plant species, pollinator species and links using 'estimateR' function of vegan package ver. 2.5-6 based on Chao1 estimator. Calculated sampling completeness as proportion of observed species or link numbers of the estimated asymptotic numbers. Also estimated sampling coverage using Chao and Jost method as weighted measure considering species/link abundance.
   Quantities: Sampling completeness calculated for all 2006 networksDuration: Single calculation per networkConditions: Applied to species and link data separately
   Equipment: R statistical software, vegan package ver. 2.5-6

Typical Equipment

• R statistical software
• vegan package ver. 2.5-6

Output Measurements

• sampling completeness
• sampling coverage
• asymptotic richness

Papers Using This Protocol (1)

Species Studied With This Protocol

Places Where Used