Why are marshes bigger than bogs?

Marshes are typically larger than bogs due to their more favorable hydrological conditions and nutrient availability, which support a wider range of plant growth. Marshes receive water from various sources, including rivers and rainfall, leading to a diverse ecosystem with grasses and reeds. In contrast, bogs are characterized by waterlogged, acidic conditions that limit plant diversity, primarily supporting sphagnum moss and specific hardy species. This environmental difference contributes to the generally smaller size of bogs compared to marshes.