Contemporary climate change in Alaska has resulted in amplified rates of press and pulse disturbances that drive ecosystem change with significant consequences for socio‐environmental systems. Despite the vulnerability of Arctic and boreal landscapes to change, little has been done to characterize landscape change and associated drivers across northern high‐latitude ecosystems. Here we characterize the historical sensitivity o...

It has been hypothesized that the δ 13 C values of chemoautotrophs at deep‐sea hydrothermal vents, which cluster in two groups around −11‰ and −30‰, are due to variation in isotopic discrimination by different forms of RubisCO. The most enriched δ 13 C values are from the vestimentiferan tubeworm Riftia pachyptila , whose bacterial endosymbionts provide essentially all of its organic carbon via CO 2 fixation by a form II Rubis...