Communities and Ecosystems

Communities are groups of interdependent plants and animals living together, while an ecosystem includes both these living organisms (biotic) and all non-living (abiotic) factors in an area. It's like a neighborhood where everyone depends on each other to survive!

Plants constantly compete for essential resources like light, space, water, and mineral ions from the soil. Similarly, animals compete for food, mates for reproduction, and territory. This competition shapes how populations develop and which individuals survive.

Interdependence is crucial in ecosystems - different species rely on each other for food, shelter, pollination, and seed dispersal. When one species changes, it can trigger a ripple effect throughout the entire community. The sun serves as the primary energy source for all food webs, with plants converting sunlight into chemical energy through photosynthesis.

Remember this! Abiotic factors (like temperature, light intensity, soil pH) and biotic factors (like predators and pathogens) both influence which organisms can survive in a particular ecosystem.