Exploring the Variety of Earth's Habitats

What is an Ecosystem?

An ecosystem is a community of living organisms (plants, animals, microbes) interacting with each other and their physical environment – soil, water, air, sunlight. These interactions form complex food webs and nutrient cycles.

Different ecosystems vary dramatically in terms of climate, geography, and the species they support. Examples include forests, grasslands, deserts, coral reefs, and freshwater lakes.

Levels of Biodiversity

Biodiversity within an ecosystem is often categorized into three levels: genetic diversity (variation in genes within a species), species diversity (the number and variety of species present), and ecosystem diversity (the range of different ecosystems).

High biodiversity generally indicates a healthier, more resilient ecosystem capable of better adapting to changes. The loss of any one level impacts the whole system.

Biodiversity = Genetic Diversity + Species Diversity + Ecosystem Diversity

Types of Ecosystems

Ecosystems can be broadly classified based on their dominant features. Terrestrial ecosystems include forests (tropical, temperate, boreal), grasslands, and deserts.

Aquatic ecosystems comprise freshwater systems like rivers, lakes, and wetlands, as well as marine ecosystems encompassing oceans, coral reefs, and estuaries. Each has distinct adaptations for survival.

Threats to Ecosystem Diversity

Human activities pose significant threats to ecosystem diversity globally. Habitat loss due to deforestation and urbanization is a primary driver of species decline.

Climate change, pollution, invasive species, and overexploitation of resources further exacerbate these challenges. Maintaining biodiversity requires concerted conservation efforts.

Frequently asked questions

Try it live

Everything above runs in your browser — open Biodiversity Index Landscape and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.