Logan T. Berner

Nov 8, 2024 | nature.com | dong chen |Jiaying He |Zhihao Wang |Randi Jandt |Gerald Frost |Logan T. Berner

AbstractArctic tundra has experienced rapid warming, outpacing global averages, leading to significant greening whose primary drivers include widespread shrubification. Here we confirm that a fire–greening positive feedback loop is evident across the Alaskan tundra, and evidence suggests that this feedback loop is dominated by the fire–shrub interactions.

Oct 7, 2024 | nature.com | Jonathan Wang |Logan T. Berner |Scott Goetz

AbstractRapid warming and increasing disturbances in high-latitude regions have caused extensive vegetation shifts and uncertainty in future carbon budgets. Better predictions of vegetation dynamics and functions require characterizing resilience, which indicates the capability of an ecosystem to recover from perturbations.

Jun 11, 2024 | onlinelibrary.wiley.com | Russell Wong |Logan T. Berner |Patrick Sullivan |Christopher Potter

CONFLICT OF INTEREST STATEMENT The authors declare that they have no competing interests. Supporting Information Filename Description gcb17374-sup-0001-DataS1.pdfPDF document, 1.8 MB Data S1. gcb17374-sup-0002-DataS2.pdfPDF document, 11.1 MB Data S2. REFERENCES , , , , , & (2016). Using ordinary digital cameras in place of near-infrared sensors to derive vegetation indices for phenology studies of high arctic vegetation. Remote Sensing, 8(10), 847.

Jan 15, 2024 | biorxiv.org | Russell Wong |Logan T. Berner |Patrick Sullivan |Christopher Potter

AbstractSatellite remote sensing of climate-driven changes in terrestrial ecosystems continues to improve, yet interpreting and rigorously validating these changes requires extensive ground-truthed data. Satellite measurements of vegetation indices, such as the Normalized Difference Vegetation Index (NDVI, or vegetation greenness), indicate widespread vegetation change in the Arctic that is associated with rapid warming.

Nov 10, 2023 | alaskabeacon.com | Ronny Rotbarth |David Cooper |Logan T. Berner |Roman Dial

by Ronny Rotbarth, Alaska Beacon November 10, 2023 Earth’s boreal forests circle our planet’s far northern reaches, just south of the Arctic’s treeless tundra. If the planet wears an Arctic ice cap, then the boreal forests are a loose-knit headband wrapped around its ears, covering large portions of Alaska, Canada, Scandinavia and Siberia. The boreal region’s soils have long buffered the planet against warming by storing huge quantities of carbon and keeping it out of the atmosphere.