The size and makeup of an ecological niche depend on a few important factors:

• Resource Availability: This means the amount of food, water, and places to live. These things affect how many species can grow and survive.

• Competitive Interactions: Different species compete for the same resources. This competition plays a big role in shaping the niche.

• Environmental Conditions: Things like climate, the type of soil, and the structure of a habitat decide who can live in certain areas.

• Species Adaptations: Organisms develop traits or skills that help them make the best use of their niche.