What is the primary benefit of mangroves in coastal areas?

Mangroves play a crucial role in coastal ecosystems, with one of their primary benefits being the provision of habitat for a diverse array of wildlife. They serve as a breeding ground, nursery, and feeding area for many species of fish, birds, and invertebrates, which in turn supports larger predatory species and contributes to the overall biodiversity of coastal areas. The complex root systems of mangroves offer protection and sustenance for various organisms, making them vital for maintaining healthy marine and coastal ecosystems. This rich biodiversity is essential not only for ecological balance but also for supporting local fisheries and tourism.

In contrast, the other options present scenarios that either do not capture the primary benefit of mangroves or represent effects that are typically seen as less advantageous. For instance, increasing water salinity is often a consequence of changes in coastal ecosystems rather than a benefit. Similarly, hindering boat navigation is generally seen as a disadvantage, and contributing to urban development does not directly relate to the ecological functions that mangroves provide. Understanding the value of mangroves in supporting wildlife helps underscore their importance in both environmental and economic contexts.