Long-Term Changes in Game Species Over a Long Period of Transformation in the Iberian Mediterranean Landscape
Long-Term Changes in Game Species Over a Long Period of Transformation in the Iberian Mediterranean Landscape
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DOI：
10.1007/s00267-009-9297-5
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发表时间：
2009-06-01
影响因子：
3.5
通讯作者：
Mario Vargas, Juan
中科院分区：
文献类型：
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作者：
Delibes-Mateos, Miguel;Angel Farfan, Miguel;Mario Vargas, Juan
农业的变化改变了大面积的传统农业景观，导致在大多数欧洲国家的物种群落组合的重要变化。我们怀疑近几十年来安达卢西亚（西班牙南部）土地利用的急剧变化可能影响了该地区游戏物种的分布和丰度。本文比较了20世纪60年代和90年代期间安达卢西亚主要游戏物种的分布，使用西班牙大陆鱼类，游戏和国家公园管理局提供的地图数据和最近的狩猎产量分布数据集，分别。大游戏和小游戏物种在西班牙南部的显着隔离在20世纪90年代，作为两个明显独立的chorotypes（组的物种，其丰度分布相似）从分类分析。相反，几十年前，大型和小型猎物物种并没有明显的分离，当时只有一个由小型猎物物种和野猪组成的chorotype。其他三种有蹄类并不构成一个显着的chorotype，因为它们与上述组中的一些物种表现出正相关。这些变化似乎是过去几十年来伊比利亚地中海景观发生变化的结果。传统活动的放弃，以及随之而来的茂密的灌木丛和林地的形成，导致了山区大型猎物物种的扩大和小型猎物物种的减少。此外，农业集约化显然使一些农业地区的小型猎物种群枯竭。另一方面，日益密集的狩猎管理可能会人为地促进小型游戏和大型游戏物种之间的隔离。我们的研究结果表明，传统的农业景观（如在20世纪60年代占主导地位的）的保护和再生应该是一个优先事项的小游戏物种的保护。
Agricultural change has transformed large areas of traditional farming landscapes, leading to important changes in the species community assemblages in most European countries. We suspect that the drastic changes in land-use that have occurred in Andalusia (southern Spain) over recent decades, may have affected the distribution and abundance of game species in this region. This article compares the distribution of the main game species in Andalusia during the 1960s and 1990s, using data from maps available from the Mainland Spanish Fish, Game and National Parks Service and from recent datasets on hunting yield distributions, respectively. Big-game and small-game species were significantly segregated in southern Spain during the 1990s, as two clearly independent chorotypes (groups of species whose abundances are similarly distributed) were obtained from the classification analysis. In contrast, big-game and small-game species were not significantly segregated several decades ago, when there was only one chorotype consisting of small-game species and wild boar. The other three ungulates did not constitute a significant chorotype, as they showed positive correlations with some species in the group mentioned above. These changes seem to be a consequence of the transformations that have occurred in the Iberian Mediterranean landscape over the last few decades. The abandoning of traditional activities, and the consequent formation of dense scrubland and woodland, has led to an expansion of big-game species, and a decrease of small-game species in mountain areas. Moreover, agricultural intensification has apparently depleted small-game species populations in some agricultural areas. On the other hand, the increasingly intensive hunting management could be artificially boosting this segregation between small-game and big-game species. Our results suggest that the conservation and regeneration of traditional agricultural landscapes (like those predominating in the 1960s) should be a priority for the conservation of small-game species.