Elevation is an important determinant of ecological community composition. It integrates several abiotic features and leads to strong, repeatable patterns of community structure, including changes in the abundance and richness of numerous taxa. However, the influence of elevational gradients on microbes is understudied relative to plants and animals. To compare the influence of elevation on multiple taxa simultaneously, we sampled phytotelm communities within a tropical pitcher plant (Nepenthes mindanaoensis) along a gradient from 400 to 1200 m a.s.l. We use a combination of metabarcoding and physical counts to assess diversity and richness of bacteria, micro-eukaryotes, and arthropods, and compare the effect of elevation on community structure to that of regulation by a number of plant factors. Patterns of community structure differed between bacteria and eukaryotes, despite their living together in the same aquatic microhabitats. Elevation influences community composition of eukaryotes to a significantly greater degree than it does bacteria. When examining pitcher characteristics, pitcher dimorphism has an effect on eukaryotes but not bacteria, while variation in pH levels strongly influences both taxa. Consistent with previous ecological studies, arthropod abundance in phytotelmata decreases with elevation, but some patterns of abundance differ between living inquilines and prey.

高程是生态群落组成的重要决定因素。它整合了几种非生物特征，并导致强大，可重复的社区结构模式，包括众多类群的丰度和丰度变化。但是，相对于植物和动物，海拔梯度对微生物的影响却被研究不足。为了同时比较海拔高度对多个类群的影响，我们在热带猪笼草（猪笼草属（Nepenthes mindanaoensis））沿400至1200 m asl的坡度，我们结合使用了条码和物理计数来评估细菌，微型真核生物和节肢动物的多样性和丰富性，并比较了海拔升高对群落结构的影响与大量调控的影响。植物因子。尽管细菌和真核生物生活在相同的水生微生境中，但它们的群落结构模式却有所不同。海拔比细菌对真核生物群落组成的影响要大得多。检查投手的特性时，投手的二态性对真核生物有影响，但对细菌没有影响，而pH值的变化会强烈影响两个类群。与先前的生态学研究一致，植物视线虫中节肢动物的丰度随着海拔的升高而降低，