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# Disturbance did not produce the predicted arthropod functional split
- URL: https://intelligence.wildlandseco.com/2026-10-17-urban-disturbance-arthropod-functional-null/
- Published: 2026-10-17T14:05:43.000Z
- Updated: 2026-10-17T14:05:43.000Z
- Description: Butterflies and spiders on one Indian campus complicate a simple disturbance-diversity story.
- Author: Benjamin Worlund
- Tags: butterflies, spiders, null findings, Cities, Wildlife, Methods, #ecological-intelligence, #brief-2026-10-17, #counter-signal, #peer-reviewed, #geo-asia

Evidence

Peer-reviewed

Geography

West Bengal, India; tropical university-campus plots

System

Urban arthropod communities; disturbance; functional traits

## WHAT THE EVIDENCE SAYS

A field comparison of butterfly and spider functional traits across ten plots in a West Bengal campus did not detect the expected strong between-disturbance functional separation. Reported multivariate tests were non-significant for butterflies (p = 0.413) and spiders (p = 0.886), despite environmental differences among plots.

## WHY IT MATTERS / OUR READ

The counter-signal is a limit on inference, not a claim that urban disturbance is harmless. Trait responses can be filtered by sampling, timing, taxon and site history; negative results belong in the evidence used to design management.

## CAVEATS / UNCERTAINTY

Small samples in one campus and non-significant tests do not demonstrate community equivalence or absence of any urbanization effect. Journal record was accepted in October 2026 with final typesetting pending.

## SOURCE

Frontiers in Ecology and Evolution · West Bengal butterfly and spider study  
[View original evidence ↗](https://doi.org/10.3389/fevo.2026.1941194?ref=intelligence.wildlandseco.com)

From the Morning Brief · 2026-10-17

[Read the full Morning Brief →](https://intelligence.wildlandseco.com/morning-brief-2026-10-17/)