Abstract Detail

Dynamics and Demography of Alpine Islands

Paolilli, Dena [1], Abelli-Amen, Ella [1], Grossenbacher, Dena [2].

Assessing alpine vegetation community shifts in the Sierra Nevada of California.

As temperatures continue to rise (IPCC 2007), species in high alpine environments are thought to be increasingly at risk (Parmesan 2006,). However, recent studies have found mixed results.  For example, some studies detected a decrease in species diversity (Walker et al. 2006) whereas others, a significant increase (Steinbauer et al. 2018). Evidence of alpine community shifts in functional traits has also been mixed (Alexander et al. 2018) and may depend on the interaction of temperature and moisture changes. We are currently resurveying 201 vegetation plots established ca. 30 years ago in Sequoia and Kings Canyon National Park in the southern Sierra Nevada, California. We will assess change in alpine vegetation species’ richness, abundance and functional trait diversity. Preliminary results from 40 resurvey plots will be presented. Alexander J, Global Change Biology 24.2:563-579 (2018)Intergovernmental Panel on Climate Change, Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the IPCC (2007) Parmesan C, Ann Rev Ecol Syst 37:637–669 (2006)Steinbauer M, Nature 556:231-234 (2018)Walker M, PNAS 103.5:1342-1346 (2006)

1 - Cal Poly, 1 Grand Ave, San Luis Obispo, CA, 93401, United States
2 - California Polytechnic State University, Biology, 1 Grand Avenue, San Luis Obispo, CA, 93407, United States

global change ecology
Sierra Nevada.

Presentation Type: Colloquium Presentations
Number: 0006
Abstract ID:1020
Candidate for Awards:None

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