Exploring the performance of protected areas in alleviating future human pressure

Area of Science:

• Ecology
• Conservation Science
• Environmental Management

Background:

• Protected areas (PAs) are crucial for mitigating human pressures on ecosystems.
• The long-term effectiveness of PAs in alleviating future human impacts remains uncertain.
• Understanding the spatial extent and variability of PA effectiveness is vital for conservation planning.

Purpose of the Study:

• To forecast future human pressure trends and evaluate the effectiveness of protected areas (PAs) in mitigating these pressures.
• To analyze the impact of different PA categories and buffer zones on human pressure.
• To provide insights for targeted PA management, especially in urban environments.

Main Methods:

• Forecasting future human footprint using the ConvLSTM model.
• Analyzing human pressure trends with Theil-Sen median and Mann-Kendall tests.
• Evaluating PA mitigating effects within buffer zones (1-10 km) and across IUCN categories using linear regression.

Main Results:

• Human pressure is projected to increase by 11% by 2035, showing polarized trends.
• Protected areas effectively mitigate human pressure within a 1 km buffer zone.
• The effectiveness of PAs in mitigating human pressure varies by IUCN category, with stricter areas not always being the most effective.

Conclusions:

• Protected areas demonstrate localized effectiveness in reducing human pressure, particularly within 1 km buffers.
• PA effectiveness is not solely dependent on strictness; targeted management is crucial.
• Findings support adaptive management strategies for PAs to optimize human pressure mitigation, especially in expanding urban areas.