Human harvesting impacts on managed areas: ecological effects of socially-compatible shellfish reserves

摘要: We examined how human harvesting impacts on managed areas affect the abundance and size distribution of edible mangrove shellfish Anadara granosa Polymesoda spp. in Roviana Lagoon, Solomon Islands. tested two hypotheses: (1) permanently temporally closed to exploitation, these species is significantly greater than sites open exploitation (2) moderate disturbance shell beds, particularly spp., increases their abundance. Firstly, we studied perceptions environmental states processes coupled foraging management interventions assess sociocultural influences practices ascertain types regime that people would consider a context where poaching interloping are common practices. Secondly, compared from were protected, reserved for communal harvest, exploitation. Thirdly, drawing women’s local knowledge, measured relation mud compactness quadrats across three regimes. Results showed both more abundant permanent sites. In study, however, while was moderately compacted quadrats, there no statistical relationship between within or suggest even under strong poaching, have clams as effective nominally. The results also regimes can influence effectiveness decisions thus important when designing community-based conservation programs Islands other Pacific