作者: J. H. Sudd
DOI: 10.1007/BF02223987
关键词:
摘要: The aphidsCinara pini andC. pinea are tended byFormica lugubris on young trees ofPinus sylvestris. Ants begin to forage the in April before aphid colonies have developed. Trees within 5 m of plot edge carry 2–3 times number ants as 5, 6 and 12 from edge.