Supplementary material: Fundamental watersheds and altitudinal tripartition of the mountain cloud forests from Northwestern Argentina (Yungas)

Vegetation zonation along the slopes of a mountain, from low to high altitude, is a well-known pattern in landscape ecology. A similar picture is also described in the field of freshwater ecology. Rivers and streams show different types of habitats between upland and downland site locations. We studied both segmentations of altitudinal gradient in a subtropical hotspot of biodiversity, namely the mountainous rainforest of Yungas from Northwestern Argentina. We assessed the agreement between vegetation stratification (fog grasslands, cloud montane forest and low montane rainforest) and the tripartition of assemblages of mayflies (an ancient group of aquatic insects). The products we offer here accompany the paper of Biotropica entitled The inter-forest line could be the master key to track biocoenotic effects of climate change in a subtropical forest.

We established a pair of altitudinal cutoffs in each of the watersheds from Argentinean Yungas. They correspond to the upper and lower ...

山地斜坡沿海拔从低到高的植被分带，是景观生态学中广为人知的经典规律。淡水生态学领域亦存在类似现象：河流与溪流在高地与低地生境中呈现出截然不同的生境类型。我们针对阿根廷西北部永加斯山地雨林这一亚热带生物多样性热点区域的海拔梯度分段展开研究，并评估了植被分层（雾草甸、山地云雾林与低海拔山地雨林）与蜉蝣（一类古老水生昆虫）类群三分法之间的一致性。本数据集与刊载于《Biotropica》期刊、题为《林线间带可作为追踪亚热带森林气候变化生物群落效应的核心关键》的论文配套发布。我们在阿根廷永加斯的各流域均设置了一对海拔分界阈值，二者分别对应海拔梯度的上限与下限……