Polar regions are warming more rapidly than lower latitudes, and climate models predict that this trend will continue into the coming decades. Despite these observations and predictions, relatively little is known about how polar ecosystems have responded and will continue to respond to this change. Two Long-Term Ecological Research (LTER) sites, located in contrasting environments in Antarctica, have been studying marine and aquatic terrestrial ecosystems for more than two decades. We use data from these research areas to show that the extent and thickness of ice covers are highly sensitive to short- and long-term climate variation and that this variation significantly influences ecosystem processes in these respective environments. Declining sea-ice extent and duration diminishes phytoplankton blooms as a consequence of reduced water stratification, whereas the thinning of lake-ice cover enhances phytoplankton blooms because of increased penetrating light into the water column. Both responses have cascading effects on upper trophic levels.

Maciej K. Obryk

Peter T. Doran

Ari S. Friedlaender

Michael N. Gooseff

Wei Li

Rachael M. Morgan-Kiss

John C. Priscu

Oscar Schofield

Sharon E. Stammerjohn

Deborah K. Steinberg

Hugh W. Ducklow

BioScience

BIOSCIENCE 包括关于研究成果和技术的文章、生物学教育的进步、关于生物学最新前沿的专业撰写的专题文章、专业问题的讨论、书评、关于 AIBS 的新闻、政策专栏（华盛顿观察）和教育专栏（关注教育）。圆桌会议、论坛和观点文章提供意见领袖的观点并邀请进一步评论。

The journal BioScience includes articles on research findings and technologies, advancements in biology education, specialized articles on the latest frontiers in biology, discussions on professional issues, book reviews, news about AIBS, a policy column (Washington Observations), and an education column (Focus on Education). Roundtable discussions, forums, and opinion pieces provide insights from thought leaders and invite further commentary.

《BioScience》期刊涵盖了研究成果和技术的文章、生物学教育的进展、关于生物学前沿的专题文章、专业问题的讨论、书评、AIBS的新闻、政策专栏（华盛顿观察）和教育专栏（关注教育）。此外，期刊还包括圆桌会议、论坛和观点文章，提供意见领袖的见解，并邀请进一步的评论。

Category	Quartile
生物学	1
生物学, 生物学	1

Responses of Antarctic Marine and Freshwater Ecosystems to Changing Ice Conditions

ivySCI AI Smartly Parses PDF, Answers Researchers' Questions, and Helps You Understand Papers in Seconds

Journal Info