1. Abiotic Resources (Non-living):
* Sunlight: Plants compete for sunlight to perform photosynthesis.
* Water: All organisms need water to survive, and competition for water can be intense in arid environments.
* Nutrients: Plants compete for nutrients in the soil, such as nitrogen, phosphorus, and potassium. Animals compete for nutrients through their food sources.
* Space: Organisms need space to live, grow, and reproduce. This can be a particularly important resource for sessile organisms like plants and corals.
* Temperature: Some organisms thrive in specific temperature ranges, leading to competition for suitable temperatures.
* Oxygen: Aquatic organisms compete for dissolved oxygen in the water.
2. Biotic Resources (Living):
* Food: Animals compete for prey or food sources.
* Mates: Animals often compete for mates, especially in species with limited resources.
* Shelter: Animals compete for safe places to live, nest, or raise their young.
* Predators: Some organisms compete to avoid being preyed upon.
* Parasites: Organisms can compete for the same hosts.
Examples of competition in action:
* Plants: Trees in a forest compete for sunlight, water, and nutrients.
* Animals: Lions and hyenas compete for prey in the African savanna.
* Bacteria: Bacteria in the human gut compete for space and resources.
The intensity of competition depends on the availability of resources and the number of competing organisms. When resources are scarce, competition can be fierce, potentially leading to the exclusion of some individuals or species.
