Regional diversity of temporary wetland carabid beetle communities: a matter of landscape features or cultivation intensity?
Regional diversity of temporary wetland carabid beetle communities: a matter of landscape features or cultivation intensity?
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DOI：
10.1016/s0167-8809(03)00078-1
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发表时间：
2003-09-01
影响因子：
6.6
通讯作者：
Brose, U
中科院分区：
文献类型：
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作者：
Brose, U
寻找可持续农业适用指标的挑战需要在区域范围内进行评估，以产生与政策相关的结果。本研究分析了6个10 km(2)景观的临时湿地瓢虫的区域多样性。比较了景观特征和种植强度对区域多样性的相对重要性。总物种丰富度与平均土壤指数相关，这些指数作为耕作强度的指标。这与局部尺度的研究结果一致，强调了节肢动物群落的养殖强度的重要性。湿地和生境特有物种的多样性与临时湿地的平均洪水持续时间和临时湿地的密度相关，但除此之外，景观特征对多样性没有影响。这些结果并不能证实利用景观结构指数作为生物多样性指标的概念，但种植强度的重要性不能过分强调。(C) 2003 Elsevier Science B.V.版权所有
The challenge of finding applicable indicators for sustainable agriculture requires evaluations at regional scales to lead to policy-relevant results. In this study, the regional diversity of temporary wetland carabid beetles was analysed for six landscapes of 10 km(2) each. The relative importance of landscape features and cultivation intensity for the regional diversity was compared. Total species richness was correlated with the mean soil-indices that were used as indicators of cultivation intensity. This is consistent with studies on local scales, which emphasise the importance of cultivation intensity for arthropod communities. The diversity of wetland and habitat-specific species correlated with the temporary wetlands mean duration of flooding and the density of temporary wetlands, but apart from this, there was no impact of landscape features on diversity. These results do not corroborate concepts of using indices of landscape structure as biodiversity indicators, but the importance of cultivation intensity cannot be too strongly emphasised. (C) 2003 Elsevier Science B.V. All rights reserved.