Neal Michelutti

TL;DR: Fifty-five paleolimnological records from lakes in the circumpolar Arctic reveal widespread species changes and ecological reorganizations in algae and invertebrate communities since approximately anno Domini 1850, indicating that the opportunity to study arctic ecosystems unaffected by human influences may have disappeared.

TL;DR: In this paper, the authors evaluate how well visible reflectance spectroscopy (VRS) determinations track past trends in aquatic primary production using sediment cores from several lake systems with well-known trophic histories.

TL;DR: In this paper, a survey of six arctic lakes on Baffin Island (Nunavut, Canada), pronounced increases of spectrally-inferred chlorophyll a concentrations are consistently expressed in sediments deposited during the 20th century.

TL;DR: A review and update of the growing body of research that shows that sediments in remote mountain lakes archive regional and global environmental changes, including those linked to climate change, altered biogeochemical cycles, and changes in dust composition and deposition, atmospheric fertilization, and biological manipulations can be found in this paper.

TL;DR: In this article, the spectral properties of sedimentary chlorophyll a using visible-near infrared reflectance (VNIR) spectroscopy were determined from a dilution series (n = 10) involving incremental additions of pulverized modern algae to a lake sediment matrix of low organic content.