Study
Disruptive coloration and background pattern matching
Cuthill, Innes C.; Stevens, Martin; Sheppard, Jenna; Maddocks, Tracey; Párraga, C. Alejandro; Troscianko, Tom S.
Nature, 2005
Pinned large numbers of artificial triangular paper "moths" carrying a dead mealworm to oak trunks in woodland, with patterns sampled from real bark. Critically, some targets carried pattern elements touching the edge of the target and others carried the same pattern elements entirely inside it, so that background matching was held constant and only edge disruption varied. Survival was scored by how many escaped being eaten by wild birds.
- Studied in
- Aves, Lepidoptera
- Sample size
- artificial moth targets pinned to oak trunks in woodland
Targets with pattern elements touching the outline survived significantly better than targets with the same elements placed internally, even though both matched the background equally well.
What it means
The authors' reading, and ours. Where they differ, that difference is the point.
How the authors put it
Disruptive coloration reduces predation independently of background matching, by interfering with detection of the body outline.
How NatureHQ reads it
The experiment that converted a sixty-five-year-old argument-from-illustration into a measured result. The design is what makes it work: because both treatments match the bark equally, the only thing that differs is whether the pattern breaks the edge — and the birds ate fewer of the ones that did.
- Artificial targets on tree trunks, not live moths choosing where to rest.
- One habitat and one broad class of avian predator; how far the effect generalises to other visual systems is not tested here.
Moving the markings, and letting the birds decide
Does breaking up an animal’s outline protect it beyond simply matching the background — or is disruptive coloration just background matching described differently?
What this study is used for on NatureHQ
One study can inform several subjects. Here is everywhere this one is cited.
Camouflage
Nothing is camouflaged in the abstract. An animal is harder for a particular viewer to find — and an animal that is invisible to one predator can be obvious to another with different eyes.
Disruptive coloration
Patterns that break up an animal’s outline protect it beyond simply matching the background. Artificial moths with markings touching the edge survived better than identical ones with the markings moved inside.
Disruptive coloration
Disruptive markings are bold, and the boldness is the mechanism rather than a price paid for it: a faint mark makes no convincing false edge. Some strongly patterned animals are the hardest to pick out.
Published by: Nature PortfolioPublished in a Nature Portfolio journal.
Checked against Crossref on 2026-09-28, and they agree on the title, the authors and the year.
NatureHQ summarises research in its own words and does not reproduce published text. Reviewed 2026-09-03.