Sisi Liu

Taxon-resolved sources of organic carbon preserved in lake sediments using the sedaDNA GenC pipeline

The paper develops the genC pipeline to estimate taxonomically resolved organic carbon sources in lake sediments and finds that environmental conditions, especially warming, drive OC variation, with terrestrial sources dominating.

DNA virus-host patterns in lake and marine environments over the last glacial cycle

This study uses sedimentary ancient DNA to reconstruct ancient viral communities in lake and marine environments over the last glacial cycle, revealing stable virus-host relationships and environmental influences.

Dynamic connectivities of plant metacommunities at a millennial time-scale: the Beringia testbed

The paper examines millennial-scale changes in plant metacommunity connectivity in Beringia using sedimentary DNA from lake cores, revealing shifts driven by climate and landscape changes.

Arctic defaunation initiated a cascade of mammal-plant interaction shifts through dispersal dynamics

The paper uses ancient metagenomics to show that loss of large mammals disrupted seed dispersal, contributing to mammoth-steppe collapse and informing Arctic rewilding.

Woody plant encroachment enhances negative interactions in Arctic plant communities over the last 24,000 years

The paper reconstructs plant interactions over 24,000 years in the Arctic, showing a shift from positive to negative interactions with woody encroachment.