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Nematode

INFRA · APIS
Velocity0.0

Ecological Indices Calculator for Nematode Communities

github.com/h-xuanjiu/nematode ↗

A nematode ecology toolbox whose last two releases corrected the arithmetic in its own indices.

soil-ecologynematodescommunity-indicesreference-datar-packages
◆Current state
Nematode packages the standard soil-nematode community indices — maturity, enrichment, structure and channel indices, trophic diversity, plant parasite index — alongside ordination helpers and a bundled taxonomy and traits dataset drawn from Nemaplex. The visible history is short: a large function drop in 0.2.0, then a run of releases correcting formulas and refreshing the reference data.
◆Where it's heading
Two of the four documented releases fix a formula in an index the package already shipped — the Species Richness Index in 0.2.1 and a missing division by two in the Functional Metabolic Footprints calculation in 0.3.1 — and the 0.2.1 note tells users their earlier values were wrong. That, more than the feature additions, is what the feed records. The other thread is keeping the bundled taxonomy current against Nemaplex, which grew the genus table from 2,484 to 2,524 entries and the body-mass table from 987 to 1,094 in March.
◆Prediction
Given the pattern of index formulas being corrected after release, further verification of the remaining indices against their source publications is the likeliest next work. The Nemaplex datasets carry a revision date and are refreshed on the upstream schedule, so another data update is the other predictable item.

◆Recent moves

  1. 1mo ago

    Missing division by two fixed in Functional Metabolic Footprints

    A one-line note with real consequences: the Functional Metabolic Footprints calculation omitted a division by two, so every footprint value produced by earlier versions was doubled. The second published formula correction in the package's short history.

    View source ↗
  2. 4mo ago

    cp_rel_abundance() added

    A single new function for colonizer-persister relative abundance, extending the abundance helpers that sit alongside the index calculations. The release note names it and nothing else.

    View source ↗
  3. 4mo ago

    Nemaplex taxonomy and body-mass datasets refreshed

    The bundled reference data is brought up to the March 2026 Nemaplex revision — 2,524 genera and 1,094 body-mass entries, up from 2,484 and 987 — which changes results for anyone whose samples include newly covered genera. The entry restates the 0.2.1 and 0.2.0 notes below its own, so it reads as a cumulative changelog rather than one release.

    View source ↗