Habitat
A habitat is the natural environment in which a particular species lives, feeds, and reproduces — the physical and biological setting that meets an organism's essential requirements for survival. Habitats are defined by characteristic physical conditions such as temperature, moisture, light, and soil type, as well as the biological community present. Habitat loss is considered the primary driver of global biodiversity decline.
Examples of Habitats and Their Key Features
| Habitat | Key Abiotic Feature | Characteristic Species | Threat |
|---|---|---|---|
| Coral Reef | Warm, clear saltwater | Clownfish, coral polyps | Ocean acidification |
| Mangrove Forest | Brackish water, tidal | Mudskippers, herons | Coastal development |
| Tropical Rainforest | High humidity, warmth | Jaguars, toucans | Deforestation |
| Arctic Tundra | Permafrost, low temp | Polar bears, lemmings | Climate change |
| Freshwater Lake | Still freshwater | Trout, water lilies | Eutrophication |
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Related Terms
Ecological Niche
An ecological niche describes the functional role and position of a species within its ecosystem, encompassing all the physical, chemical, and biological conditions it requires to survive, reproduce, and maintain a population. Unlike a habitat (where an organism lives), a niche defines what an organism does — what it eats, when it is active, and how it interacts with other species. The competitive exclusion principle states that no two species can occupy exactly the same niche indefinitely in the same habitat.
Biome
A biome is a large-scale ecological region characterised by its distinctive climate, vegetation, and associated animal life. Biomes are defined primarily by temperature and precipitation patterns, which determine the types of plants that can survive there. Major terrestrial biomes include tropical rainforest, savanna, desert, temperate forest, taiga, and tundra, while aquatic biomes include freshwater and marine systems.
Ecosystem
An ecosystem is a biological community of interacting organisms together with the physical environment they inhabit, including all living (biotic) and non-living (abiotic) components. It represents a functional unit of ecology where energy flows and nutrients cycle between organisms and their environment. Ecosystems range in scale from a small pond to the entire Amazon rainforest and are the foundational units studied in ecology.
From Latin habitare (to inhabit, to dwell), the third person singular present indicative of which is habitat (it inhabits). The word entered scientific usage in the 18th century in natural history texts, often used to mean "it lives in" before a place description.