Increased plant biomass in a High Arctic heath community from 1981 to 2008

J M G Hudson, Greg H R Henry


The Canadian High Arctic has been warming for several decades. Over this period, tundra plant communities have been influenced by regional climate change, as well as other disturbances. At a site on Ellesmere Island, Nunavut, Canada, we measured biomass and composition changes in a heath community over 13 years using a point-intercept method in permanent plots (1995-2007) and over 27 years using a biomass harvest comparison (1981-2008). Results from both methods indicate that the community became more productive over time, suggesting that this ecosystem is currently in transition. Bryophyte and evergreen shrub abundances increased, while deciduous shrub, forb, graminoid, and lichen cover did not change. Species diversity also remained unchanged. Because of the greater evergreen shrub cover, canopy height increased. From 1995 to 2007, mean annual temperature and growing season length increased at the site. Maximum thaw depth increased, while soil water content did not change. We attribute the increased productivity of this community to regional warming over the past 30-50 years. This study provides the first plot-based evidence for the recent pan-Arctic increase in tundra productivity detected by satellite-based remote-sensing a...Continue Reading


Jan 24, 2006·Proceedings of the National Academy of Sciences of the United States of America·Marilyn D WalkerPhilip A Wookey
Jul 9, 2008·Proceedings of the National Academy of Sciences of the United States of America·J Philip GrimeChris R Bennett

❮ Previous
Next ❯


Jan 26, 2011·Proceedings of the National Academy of Sciences of the United States of America·Linda J BeaumontWilfried Thuiller
Jul 10, 2013·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Gilles GauthierDominique Berteaux
Sep 24, 2011·Ecological Applications : a Publication of the Ecological Society of America·Wade E Winterhalter
Aug 19, 2015·Global Change Biology·Craig A EmmertonGilberto Z Pastorello
May 14, 2011·Ecological Applications : a Publication of the Ecological Society of America·Adrian V Rocha, Gaius R Shaver
May 9, 2014·Ecology·Susan M NataliKathryn G Crummer
Apr 24, 2014·Global Change Biology·Frank HagedornPavel A Moiseev
Oct 7, 2015·Frontiers in Plant Science·Stephen B PointingWarwick F Vincent
Aug 29, 2012·The New Phytologist·M R TuretskyE-S Tuittila
Jul 4, 2015·Ecology and Evolution·Robert D HollisterJessica L Gregory
Dec 31, 2014·Proceedings of the National Academy of Sciences of the United States of America·Sarah C ElmendorfMarilyn Walker
Jan 8, 2017·Global Change Biology·James S CamacPeter A Vesk
Nov 30, 2016·Ecological Applications : a Publication of the Ecological Society of America·Yueyang JiangBonnie L Kwiatkowski
Jan 9, 2018·Biodiversity Data Journal·Anders Bryn, Kerstin Potthoff
Dec 17, 2015·American Journal of Botany·Robert T S BarrettCraig E Tweedie
Jan 21, 2020·Global Change Biology·Andrea GhirardoRiikka Rinnan
Apr 19, 2018·Proceedings of the National Academy of Sciences of the United States of America·Huiying LiuJin-Sheng He
Sep 28, 2018·Nature·Anne D BjorkmanEvan Weiher
Nov 18, 2020·Nature Communications·Nicholas J BouskillRobert F Grant
Feb 13, 2021·Plants·Susanna E VennAdrienne B Nicotra

❮ Previous
Next ❯

Related Concepts

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.


Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.


Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.