Answer:
This relationship is a commensal, and for the tree, it is mutualistic
Step-by-step explanation:
Commensalism is a relationship between two living organisms or individuals of two species in which one species benefits from the other without harming it. A commensal organism benefits from another organism mostly by obtaining shelter, food, or support from the host, which neither benefits nor is harmed. Mutualism on the other hand is an ecological relationship that benefits the two organisms.
On the relationship between salamander and a small tree; This relationship is a commensal, and for the tree, it is mutualistic.