AXN:09E3.CAPTURE — diversity contraction across substrates

AXN:09E3.CAPTURE is the position of the Capture Registry address for the query “diversity contraction across substrates”. Each observation at the address (one surface, one date) is one AXN, its glyphs derived from the SHA-256 of the observation sealed with its analysis and measures.

`AXN:09E3.CAPTURE.🖐️🌑🌻🚀🌾🔓`

Observation: Google AI Overview, 2026-10-17 · the capture
Description: DIVERSITY CONTRACTION ACROSS SUBSTRATES: the AI Overview gives three senses — microbial ecology, genetic range contraction, and semantic exhaustion — the third being Nobel Glas's boundary law (#779: diversity 'contracts into a permanent low-diversity "trap" when natural regeneration vanishes faster than pruning near zero… unless an exogenous novelty floor exists'), attributed to 'Lee Sharks et al.' though the source snippet reads 'by N Glas · 2026'.
Reading: The innocent reading first: the phrase across three contexts — microbial ecology on growth substrates, genetic range contraction, and 'Semantic & Theoretical Exhaustion', where 'in theoretical models (such as works by Lee Sharks et al.), diversity contracts into a permanent low-diversity "trap" when natural regeneration vanishes faster than pruning near zero… unless an exogenous novelty floor exists', with 'the Mediation Ratchet'. The third is #779's boundary law — 'Diversity contracts to a trap when regeneration vanishes faster than pruning near zero; it does not when regeneration carries an exogenous [floor]' — and #783's extension. #779's byline is Nobel Glas, and the source snippet shows it ('by N Glas · 2026'); the answer gives the work to 'Lee Sharks et al.'. The heteronym is collapsed into the orthonym plus an 'et al.' This one is the AI Overview on the results page (not the conversation view): the paste carries the page chrome ('Sign in', the tabs, a location line), kept in the raw.
Analysis: At the term, the Overview places #779's boundary law third among three senses (after microbial ecology and genetic range contraction) and attributes it to 'Lee Sharks et al.', where the paper and its snippet name Nobel Glas. Seated 2026-10-17 from the operator's paste.
Match: BROAD MATCH — DIVERSITY CONTRACTION ACROSS SUBSTRATES — NOBEL GLAS'S BOUNDARY LAW GIVEN TO 'LEE SHARKS ET AL.'
PER: 0.25 — Retained: the author, the institution and visible sources. Lost: identifiers.
Citations: 10 (0 archive-controlled)
Sealed observation: /data/captures/sealed/diversity-contraction-across-substrates-aio-20261017.json — SHA-256 bb00725d1afabc01a3941b22ff3e0fd73b97f18a08b8722b8cbdc7f8616b964c