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The value of a long-term bushmeat market dataset as an indicator of system dynamics.

机译：长期食用森林猎物市场数据集的价值可作为系统动态的指标。

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Data on prices and quantities of wildlife on sale in markets are increasingly being used as indicators of the sustainability of bushmeat hunting, being relatively easy to collect. However, it is not clear how much can actually be inferred from trends in such data. This study analyses changes in price, quantity, method of capture and kill location of bushmeat species entering the Atwemonom bushmeat market in the city of Kumasi (Ghana) over the period 1987-2002, using data collected by an official of the Ghana Wildlife Department. The analysis was confined to the seven most commonly traded species and to the open season only, in order to maximize the reliability of the data. Over the period, there was an increase in real bushmeat prices, in the proportion of animals killed by means other than guns and the trade made up by grasscutters (Thryonomys swinderianus). A higher proportion of animals originated from distant areas, rather than from villages close to Kumasi. These trends are compatible both with depletion of the bushmeat resource and with an economically rational response by hunters to increasing prices. The analysis highlights both the utility and the limitations of detailed long-term market data as a tool for assessing the sustainability of wildlife hunting. Data on the origin of animals sold in the market and the gear type are necessary but not sufficient for understanding the drivers of changes in price and quantity of species on sale in markets; without complementary detailed local data on hunter behaviour, market data are of little value..
机译：市场上出售的野生动植物的价格和数量的数据越来越多地被用作食用森林猎物可持续性的指标，相对容易收集。但是，尚不清楚从这些数据的趋势中可以实际推断出多少。这项研究使用加纳野生动物部官员收集的数据，分析了1987-2002年进入库马西市（加纳）的Atwemonom食用森林猎物市场的食用森林猎物物种的价格，数量，捕获和杀死地点的变化。为了将数据的可靠性最大化，分析仅限于七个最常交易的物种，并且仅限于开放季节。在此期间，食用森林猎物的实际价格有所上涨，用枪支以外的手段杀死的动物比例以及用割草机（Thryonomys swinderianus）进行的贸易所致。较高比例的动物来自遥远地区，而不是来自库马西附近的村庄。这些趋势既符合食用森林猎物资源的枯竭，又符合猎人对价格上涨做出的经济上合理的反应。分析强调了长期详细市场数据作为评估野生动物狩猎可持续性的工具的实用性和局限性。市场上出售的动物的来源和齿轮类型的数据是必要的，但不足以了解市场上出售的物种的价格和数量变化的驱动因素；没有有关猎人行为的补充详细本地数据，市场数据的价值很小。

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