Tropical montane regions tend to have high rates of precipitation, biological production,
erosion, and sediment export, which together move material off the landscape and toward
sedimentary deposits downstream. Plant wax biomarkers can be used to investigate
sourcing of organic matter and are often used as proxies to reconstruct past climate and
environment in sedimentary deposits. To understand how plant waxes are sourced within a
wet, tropical montane catchment, we measure the stable C and H isotope composition (δ 13 …