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How can we assess the ecological impact of long-term conservation initiatives in mountain ecosystems?

My NGO has a 20-year reforestation project in the Andes. We have great data on trees planted, but our donors and the scientific community are now asking for proof of broader ecosystem impact. How do we design a monitoring program that credibly connects our activities to changes in biodiversity, watershed function, and overall ecosystem resilience over such long timescales?

 

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By Amy Answered 1 year ago

From my experience evaluating these projects, the shift from output to outcome is critical. I would recommend establishing a core set of integrated indicators measured at permanent plots: not just tree count, but native seedling recruitment, soil organic matter, and invertebrate diversity as proxies for function. Crucially, pair this with remote sensing for landscape-scale habitat connectivity. The most compelling evidence I've seen comes from projects that also monitor a "control" catchment outside the project area to distinguish your impact from broader climate trends. It's about telling the story of the whole system, not just the trees.

 

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