Fauna
Species

Red Raspberry Slime Mold

Tubifera ferruginosa

Also known as Raspberry Slime Mold, Red Raspberry Slime

Red raspberry slime mold begins life as a mobile, single-celled plasmodium creeping silently over decaying wood to engulf bacteria and fungal spores. When ready to reproduce, it congregates into eye-catching clusters of tightly packed, cylindrical sporangia that resemble miniature raspberries. Over several days, the brilliant coral-pink or crimson globes mature, turning dull purplish-brown before releasing powdery brown spores on the wind.

ColorfulWoodlandDecomposer
—observations
—countries
—peak records
Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Diet & preyBacteria, Fungal spores, Microscopic organic debris
Predators
  • Slime mold beetles
  • Slugs
  • Snails
ThreatsSevere forest fires, logging, clear-cutting of old-growth coarse woody debris
HabitatsTemperate forests, damp woodlands, decaying conifer and hardwood logs
Life spanDays to weeks as a fruiting body; months in plasmodial or spore states
  1. FamilyTubiferaceae
  2. SpeciesTubifera ferruginosa
Range data is not available yet.
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to observe at a normal distance.
Responsible observation
  • Look on damp wood: Search shady, rotting logs and decaying stumps after humid summer rains.
  • Observe color shifts: Revisit colonies over 48 hours to watch them transform from vivid pink to dull brown.
  • Use a hand lens: Magnification reveals the fine, tightly bundled hexagonal tubes that form the cluster.
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