Symbiosis
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Rowan
Eeno11 / CC BY-SA 3.0

Tree·Rosaceae

Rowan

Sorbus aucuparia

Habitat
Upland woodland, moorland, mountain slopes. Highly tolerant of poor soils
IUCN status
LCLeast Concern
Max height
15 m

Ecological relationships

Eaten by

  • Mistle Thrush
    Mistle ThrushTurdus viscivorus

    Also defends Rowan berry crops in upland areas using the same resource-defense strategy; a key disperser of Rowan seeds into open habitats above the treeline.

Seeds dispersed by

  • Common Blackbird
    Common BlackbirdTurdus merula

    One of the most important Rowan dispersers in lowland Britain; strips berries quickly in autumn and deposits seeds across a wide radius.

  • Bohemian Waxwing
    Bohemian WaxwingBombycilla garrulus

    Specialist frugivore whose irruptive winter movements into temperate Europe are driven by Rowan mast crop failures in Fennoscandia. Seeds swallowed whole and passed intact (Svensson 1975).

  • Fieldfare
    FieldfareTurdus pilaris

    Major winter frugivore on Rowan berries; irruptive flocks strip trees and disperse seeds over long distances.

Host of

  • Oakmoss Lichen
    Oakmoss LichenEvernia prunastri

    Commonly colonises rowan bark in upland and montane woodland.

Mycorrhizal partner of

  • Rowan BoleteLeccinum roseofractum

    Obligate ectomycorrhizal partner of Rowan; found under Rowan in upland birch-rowan woodland.

Foliage

Rowan, foliage
(c) Matt Lavin, some rights reserved (CC BY)