What is the cause and effect for fiddler crabs?

- High salinity levels in water due to evaporation or pollution.

- Lack of oxygen in the water due to pollution or overcrowding.

- Predators such as fish, birds, and other animals.

- Habitat destruction such as development, dredging, and erosion.

Effect:

- Reduced population of fiddler crabs due to death or migration.

- Disruption of the food chain, as fiddler crabs are a food source for other animals.

- Changes in the ecosystem, as fiddler crabs play an important role in cycling nutrients.

- Economic losses due to reduced tourism and fisheries.

- Aesthetic impacts due to the loss of fiddler crabs, which are often considered a symbol of coastal ecosystems.