[MCN] There's some talk of forest resilience. What is reliance?

[Lance Olsen]

What is “resilience”?

2018 — “Resilience is a popular narrative for conservation and provides an opportunity to communicate optimism that ecosystems can recover and rebound from disturbances.” (Emily S. Darling and Isabelle M. Côté, Science, March 2, 2018). 

2014 — “Emerging from a wide range of disciplines, resilience in policy-making has often been based on the ability of systems to bounce back to normality, drawing on engineering concepts. This implies the return of the functions of an individual, household, community or ecosystem to previous conditions, with as little damage and disruption as possible following shocks and stresses”  (Tanner et al, Nature Climate Change,  December 18, 2014). 

1938 — Resilience. 1- The act or power of springing back to a former position or shape. 2. The quantity of work given back by a body that is compressed to a certain limit and then allowed to recover itself, as a spring under pressure suddenly relaxed.”  (Funk & Wagnall’s New Standard Dictionary of the English Language, vol.2, M-Z 1938

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2005 — …. after 15 months of depleted soil water
content, >90% of the dominant, overstory tree species (Pinus
edulis) died.
.
"The die-off was … not only at the intensively studied site but also across the region, extending over 12,000 km2 or more."

"Notably, the recent drought was warmer than the previous subcontinental drought …. die-off from the recent drought was more extensive than that from the previous drought, extending into wetter sites within the tree species’ distribution.”

“Most of the patchy mortality in the 1950s was associated with trees 100 years old, whereas nearly complete tree mortality across many size and age classes was observed in response to the recent drought.”

Breshears et al (2005) Regional vegetation die-off in response to global-change-type drought. PNAS October 15, 2005
https://www.pnas.org/content/pnas/102/42/15144.full.pdf

>>>>>>>>>>

“In essence, a survivable drought of the past can become an intolerable drought under a warming climate.” 

United States Department of Agriculture 
Effects of Drought on Forests and Rangelands in the United States: A Comprehensive Science Synthesis:Forest Service Gen. Tech. Report WO-93b January 2016 
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