Stag headed oaks

An oak tree with dead branches protruding from the top of the tree. This gives the appearance of antlers, similar to those of a stag. 

Mixed woodland

Mixed woodlands include both conifers and broadleaved trees.

Veterinisation

The process of damaging younger trees to give them the features of veteran trees and create habitats for a range of wildlife. 

Turbidity

The amount of suspended particles carried in the water.

Tetrad

An area of land 2km x 2km square.

Substrate

A surface or material than an organism lives, grows or feeds on.

State of Nature Report

A report on the UK’s current biodiversity.

Temperate rainforest

Very damp, often ancient woodlands where mosses, lichens, liverworts and ferns grow in abundance, including on trees. Temperate rainforests are threatened and globally rare.

Species

A group of similar organisms that can breed and exchange genes.

Silvopasture

A system that combines trees with grazing land.