Can stumps tell what people want: Pattern and preference of informal wood extraction in an urban forest of Nairobi, Kenya.

摘要: Abstract Detailed patterns and preferences of informal wood extraction were investigated in an urban forest used by slum inhabitants Nairobi, Kenya, as such information determines the sustainability resource use. Instead asking people what they had secretly cut, a survey was conducted stumps trees left to (i) evaluate how accessibility patrolling affected spatial use, (ii) estimate broad spectrum species species-specific size preferences. Both probability cutting increased with better (represented distance from slum), stump exceeded that living stem around 1.7 km slum, which suggested magnified impact tree near slum. Patrolling ranger stations) little effect reducing but effective cut size. With use random models, preference (including less abundant non-preferred species) estimated, indicated trends vegetation change. Smaller stems preferred for most presumably domestic fuelwood, major exploitation large Brachylaena huillensis traded woodcarving industry also revealed. Such detailed on can help managers understand threats forests well needs local communities. This is first step redefining ‘acceptable’ community their role responsibility sustainable management, especially when conventional controls activities (i.e. exclusion penalty) are not functioning well.