Pittosporum tenuifolium Gaertn.

are eaten by

• Global Biotic Interactions: Anthornis melanura (Sparrman 1786) (Méliphage carillonneur)
• Global Biotic Interactions: Icerya purchasi
• Global Biotic Interactions: Sturnus vulgaris Linnaeus 1758 (Etourneau sansonnet)
• Global Biotic Interactions: Finschia novaeseelandiae (Gmelin 1789)
• Global Biotic Interactions: Pyrrosia eleagnifolia (Bory) Hovenk.

are host of

• Global Biotic Interactions: Vizella tunicata Gadgil 1995
• Global Biotic Interactions: Phlebiopsis crassa (Lév.) Floudas & Hibbett 2015
• Global Biotic Interactions: Phlebiopsis crassa (Lév.) Floudas & Hibbett 2015
• Global Biotic Interactions: Trichoderma sulphureum (Schwein.) Jaklitsch & Voglmayr 2014
• Global Biotic Interactions: Metuloidea tawa (G. Cunn.) G. Cunn. 1965

are parasitized by

• Global Biotic Interactions: Ileostylus micranthus (Hook. fil.) van Tiegh.
• Global Biotic Interactions: Ileostylus micranthus (Hook. fil.) van Tiegh.
• Global Biotic Interactions: Tupeia antarctica (Forst. fil.) Cham. & Schltdl.
• Global Biotic Interactions: Ileostylus micranthus (Hook. fil.) van Tiegh.
• Global Biotic Interactions: Ileostylus micranthus (Hook. fil.) van Tiegh.

have flowers visited by

• Global Biotic Interactions: Vanessa gonerilla gonerilla
• Global Biotic Interactions: Apis mellifera Linnaeus 1758
• Global Biotic Interactions: Prosthemadera novaeseelandiae (Gmelin & JF 1788) (Méliphage tui)
• Global Biotic Interactions: Pieris rapae (Linnaeus 1758) (piéride de la rave)