With a little help from my friends: Hyperparasitism allows a generalist mistletoe to expand habitat use.

Thus, by itself, I T. corymbosus i cannot parasitize I Nothofagus i trees but reaches a considerable abundance in the I Nothofagus i - I Araucaria i forest due to a hyperparasitism interaction with I D. mutabilis i , expanding its habitat use toward this forest type. Besides plant-animal interactions, plant-plant interactions are also important because they determine which plant species can be parasitized by mistletoes (i.e., host range; Mathiasen et al., [18]). Keywords: host; Loranthaceae; Nothofagus; plant-plant interactions; temperate rainforest EN host Loranthaceae Nothofagus plant-plant interactions temperate rainforest 1 6 6 02/03/23 20230201 NES 230201 Mistletoes are a relatively diverse group of flowering plants that have developed a parasitic strategy (Watson, [26]). I Nothofagus i trees are parasitized by I D. mutabilis i , and I T. corymbosus i parasitizes I D. mutabilis i , not directly the tree. [Extracted from the article]