This interaction is best described by these two concepts:
-Parasitism: it is a process by which one species amplify its survival capacity using the resources of other species to fulfill its basic and vital necessities. It can imply nutritional, reproductive (like dispersion of seeds), niche necessities within others.
-Competition: it is a biological interaction in which the fitness or biological adequation of one species is reduced as a consequence of the presence of another species. There is a limitation of at least one resource used by both species such as sunlight, food, water, nutrients, niche, etc.