Biodiversity is a commonly used term, but what does it mean, why is it so important and what can you do to help protect it?

What is biodiversity?

In the simplest terms, biodiversity refers to the variety of life on Earth and is a combination of the words ‘biological’ and ‘diversity’. This includes every life form, be it plants, animals, fungi and even microorganisms like bacteria. The greater the variety of these life forms that live within a habitat or landscape, the more biodiverse that environment is. 

Why should we care?

For a start, we depend on biodiversity to survive. Life as we know it is only possible due to the complex web of interactions between the different life forms on earth. For example, we rely on certain plants and animals for the food we eat, while trees and other plants produce the oxygen we need to breathe and remove harmful pollutants from the air. Many people also feel that we have a moral duty to respect all forms of life and do our best to ensure their survival.

The factors behind this loss are many. Habitat destruction, pollution, exploitation and climate change are just some of the reasons that the variety of life on Earth is declining.

Should global biodiversity continue to be lost at the current unprecedented rate, the world will become a very different place. The starkest predictions claim the survival of humanity itself will be at risk.

How can we increase biodiversity?

The UK is not immune to the global biodiversity crisis. The latest State of Nature Report, compiled by leading UK conservation and research organisations, showed that 56% of our species declined between 1970 and 2013, with 15% already extinct or threatened with extinction from our shores.

So what can be done to improve biodiversity? An immediate priority is to protect the semi-natural habitats we have left. Ancient woodland, for example, is the UK’s most biodiverse land habitat, but is under increasing threat. Right now, more than 900 ancient woods are threatened with loss or damage by development alone.

Trees woods and wildlife

Why are trees important for biodiversity?

Woodland is home to a wealth of wildlife. If we don't protect what we have left and work to create woodlands of the future, we stand to lose more than just trees.

Discover what trees offer

By fighting to protect this irreplaceable habitat, we are preserving the wealth of biodiversity it contains – the Woodland Trust has saved more than 1,000 ancient woods from damage or destruction since 1999.

We currently have more than 34,000 hectares of ancient woodland under restoration, undoing the damage caused by human action and helping native woodland wildlife to flourish there once more.

If the biodiversity decline is to be reversed, we also need to buffer and extend these places where wildlife can thrive and better connect them together. We want to plant a tree for every person in the UK by 2025 as part of our landscape-scale conservation approach, which aims to develop diverse, wildlife-rich landscapes that have the resilience to cope with future pressures and shocks.

What can you do?

There are plenty of ways you can try to boost biodiversity. If you have a garden, why not make it as wildlife friendly as possible? Planting a tree would be a great start. Another option is to try to limit your negative impact on the environment. Even small changes, such as walking instead of driving whenever possible, can have a big impact if we all make the effort.

You can also support our efforts to boost biodiversity. Becoming a member is the best way to help us plant and protect UK woodland, but there are plenty of other ways to get involved, from volunteering to campaigning.

However you choose to help, we’ll be extremely grateful for your support.

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