Temporal fluctuations of mineral concentrations as related to the physiological status of the lichen <i>Ramalina lacera</i> (With.) J.R. Laund
2008
Garty, Jacob | Lehr, Haya | Garty-Spitz, Rachel Lena | Ganor, Eliezer | Stupp, Amnon | Alpert, Pinhas | Osetinsky, Isabella
The present review deals with alterations in Ca, K, Mg, Na, and P content and chlorophyll integrity of the epiphytic fruticose lichen <i>Ramalina lacera</i> in a forested rural area in Israel over an extended period. In the years 1978-2002, Ca was found to accumulate in significant amounts whereas the P content decreased. The K content did not change significantly in this period. The Mg and Na content measured in the years 1993-2002 did not show a clear pattern of change, either. The accumulation of Ca coincided with a significant increase of dust storms, originating in the Sahara Desert, in terms of dust-stormy days. The source of the above-mentioned elements is discussed.
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