Leaf temperatures mediate alpine plant communities' response to a simulated extended summer

Ecology and Evolution
Katherine F WentzKatharine N Suding

Abstract

We use a quantitative model of photosynthesis to explore leaf-level limitations to plant growth in an alpine tundra ecosystem that is expected to have longer, warmer, and drier growing seasons. The model is parameterized with abiotic and leaf trait data that is characteristic of two dominant plant communities in the alpine tundra and specifically at the Niwot Ridge Long Term Ecological Research Site: the dry and wet meadows. Model results produce realistic estimates of photosynthesis, nitrogen-use efficiency, water-use efficiency, and other gas exchange processes in the alpine tundra. Model simulations suggest that dry and wet meadow plant species do not significantly respond to changes in the volumetric soil moisture content but are sensitive to variation in foliar nitrogen content. In addition, model simulations indicate that dry and wet meadow species have different maximum rates of assimilation (normalized for leaf nitrogen content) because of differences in leaf temperature. These differences arise from the interaction of plant height and the abiotic environment characteristic of each plant community. The leaf temperature of dry meadow species is higher than wet meadow species and close to the optimal temperature for photo...Continue Reading

References

Jul 19, 1994·Proceedings of the National Academy of Sciences of the United States of America·J W RadinE Zeiger
Apr 12, 2005·The New Phytologist·Ian J WrightMark Westoby
Jul 11, 2006·Ecological Applications : a Publication of the Ecological Society of America·William D BowmanMagdalena Wiedermann
Feb 19, 2011·Proceedings of the National Academy of Sciences of the United States of America·Hugo Jan de BoerStefan C Dekker
Apr 21, 2012·Journal of Environmental Management·William D BowmanEllen Porter
May 26, 2012·Current Biology : CB·Amanda J CrawfordKeara A Franklin
Jul 17, 2012·Plant Science : an International Journal of Experimental Plant Biology·Jaume FlexasCharles R Warren
Jun 19, 2013·Oecologia·S C Castle, J C Neff
Oct 23, 2013·Proceedings of the National Academy of Sciences of the United States of America·Nadejda A SoudzilovskaiaJohannes H C Cornelissen
Dec 25, 2015·Nature·Sandra DíazLucas D Gorné

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