Research and analysis
D6aii: Long-term and short-term changes in the relative abundance of individual priority species in England, 1970 to 2024
Updated 13 May 2026
| period | trend | percentage |
|---|---|---|
| Long term (1970–2024) | Strong decrease | 47.8260869565217 |
| Long term (1970–2024) | Weak decrease | 22.360248447205 |
| Long term (1970–2024) | Little or no change | 12.4223602484472 |
| Long term (1970–2024) | Weak increase | 6.2111801242236 |
| Long term (1970–2024) | Strong increase | 11.1801242236025 |
| Short term (2019–2024) | Strong decrease | 46.8354430379747 |
| Short term (2019–2024) | Weak decrease | 6.9620253164557 |
| Short term (2019–2024) | Little or no change | 10.126582278481 |
| Short term (2019–2024) | Weak increase | 10.7594936708861 |
| Short term (2019–2024) | Strong increase | 25.3164556962025 |