What is a potential hazard posed by large-branch removal from decurrent trees?

When large branches are removed from decurrent trees, one of the significant risks is the formation of codominant stems. Decurrent trees are characterized by a broad, spreading crown where major branches grow outward from a central leader. When large branches are removed, it can disrupt the natural branch structure and growth pattern of the tree. This disruption may lead to the development of multiple leaders or codominant stems, which can weaken the overall structure of the tree.

Codominant stems often grow close together and can compete for space and resources. This competition can result in included bark at the union of the stems, which creates a structural weakness. If these codominant stems become significant, they can potentially fail during storms or in high winds, leading to increased risk of damage to the tree and surrounding areas.

While the other options like increased light exposure or reduced privacy may occur as a consequence of branch removal, they do not directly relate to the structural risks posed by such practices. Similarly, trunk decay is more often a result of improper pruning techniques or leaving large wounds rather than the branch removal itself. Thus, the concern with codominant stems addresses the core risk involved in large-branch removal from these types of trees.