Testing predictions of beetle community patterns derived empirically using remote sensing
Testing predictions of beetle community patterns derived empirically using remote sensing
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DOI：
10.1111/j.1472-4642.2007.00438.x
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发表时间：
2008-01
影响因子：
4.6
通讯作者：
Scott A. Lassau;D. Hochuli
中科院分区：
文献类型：
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作者：
Scott A. Lassau;D. Hochuli
生态调查产生的模式很少在类似的生境中进行测试，以评估预测的准确性。检验经验得出的预测为建立生态学中一般模式的一致性提供了一个强有力的工具。我们测试了甲虫群落与开阔树冠森林栖息地复杂性的一致性，并与之前的研究结果进行了群落和形态种水平的比较。我们使用来自遥感的归一化差异植被指数(NDVI)作为生境复杂性的替代指标。在澳大利亚悉尼南部和北部的疏林中，NDVI与基于现场的甲虫物种丰富度和丰度之间的正相关一致。NDVI还可用于预测开阔林中甲虫组成的差异。“南方森林”对NDVI差异的特定类群反应与“北方森林”的反应非常相似，很可能反映了甲虫的营养作用。这项研究表明，如果可以通过遥感测量较低的植被层，NDVIs可以作为生物多样性的快速指标，与已确定的对植被结构的动物群响应相结合。
Patterns generated from ecological surveys are rarely tested in similar habitats to assess the accuracy of predictions. Testing empirically derived predictions provides a strong tool for establishing the consistency of general patterns in ecology. We test the consistency of beetle community associations with habitat complexity in open canopy forests and make both community and morphospecies‐level comparisons with results from a previous study. We use Normalized Difference Vegetation Indices (NDVIs) from remote sensing as a surrogate for habitat complexity. The positive relationships between NDVIs and site‐based beetle species richness and abundance were consistent in open canopy forests both south and north of Sydney, Australia. NDVIs were also useful for predicting differences in beetle composition in open canopy forests. Taxon‐specific responses to NDVI differences in ‘southern forests’ were very similar to responses in ‘northern forests’, most likely reflecting beetle trophic roles. This study shows that NDVIs can be used as rapid biodiversity indicators, when integrated with identified faunal responses to vegetation structure, provided that the lower vegetation strata may be measured by remote sensing.