Mongabay · Climate & nature

Rainforest Restoration in Australia Lacks Long-Term Monitoring

A study of 25 organizations restoring rainforests in Australia's Wet Tropics found that while most monitor sites, nearly half lack detailed records, focusing on short-term indicators like canopy closure.

Restoration groups prioritize habitat connectivity, biodiversity, and threatened species, but primarily measure success by canopy closure, tree survival, and weed reduction within the first three to five years.

About 42% of organizations stop monitoring once the canopy closes or weeding ends, failing to track slower recovery of plants and animals. This is a global issue.

The study highlights a gap between restoration goals and measurement practices. Most groups would monitor more intensively with additional funding.

Short-term monitoring focused on forest structure is insufficient for proving recovery, crucial for carbon and biodiversity markets. Mature rainforest species take decades to return.

The lack of systematic, long-term data means claims of improved habitat connectivity or support for threatened species are rarely evidenced.

This can lead to stalled recovery and unimproved biodiversity. Projects need to incorporate long-term monitoring costs into budgets.

Developing capacity to analyze data and adjust strategies is also essential for effective restoration.

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