2026-07-04T22:20:35Zhttps://docta.ucm.es/rest/oai/request
oai:docta.ucm.es:20.500.14352/934152025-03-18T16:00:39Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense author Raggio Quílez, José author Green, Thomas George Allan author Crittenden, P. D. author Pintado Valverde, Ana author Vivas, M. author Pérez Ortega, S. author Ríos, A. De Los author García Sancho, Leopoldo 2024-01-16T15:26:48Z 2024-01-16T15:26:48Z 2012-03-24 Raggio, J., Green, T.G.A., Crittenden, P.D. et al. Comparative ecophysiology of three Placopsis species, pioneer lichens in recently exposed Chilean glacial forelands. Symbiosis 56, 55–66 (2012). https://doi.org/10.1007/s13199-012-0159-1 0334-5114 10.1007/s13199-012-0159-1 https://hdl.handle.net/20.500.14352/93415 1878-7665 https://doi.org/10.1007/s13199-012-0159-1 https://link.springer.com/article/10.1007/s13199-012-0159-1 Lichen species belonging to the genus Placopsis are early colonisers on snow free moraines of exposed land surfaces in the subantarctic region of Tierra de Fuego, South Chile. The physiological performance of three co-occurring species, P. pycnotheca, (terricolous), and P. perrugosa, and P. stenophylla (both saxicolous) was studied. All, possess green algal photobionts but have cyanobacteria in cephalodia. It was found that there was (i) a strong positive correlation between the acetylene reduction rate (AR) and the maximum photosynthetic rate (Amax), between the N content and the AR rate, and between the N and P contents, and (ii) the relationship between the CO2-exchange rates and the responses obtained in the laboratory reflected the ecology of these three lichens in the field. The results provide new information about the dynamics of some of the fastest growing crustose lichens. We hypothesize that the performance of these three species may have developed as a response to growing in an unstable environment that resulted from frequent glacial fluctuations. eng Comparative ecophysiology of three Placopsis species, pioneer lichens in recently exposed Chilean glacial forelands journal article 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 URL https://docta.ucm.es/bitstreams/811acda3-68bb-4e2f-9169-749dd49afa34/download File MD5 823fbe4f5ab04d140c28a75af89c892f 565764 application/pdf s13199-012-0159-1.pdf URL https://docta.ucm.es/bitstreams/a40f2708-e4e5-4cfc-8261-389b012b4330/download File MD5 a98b50eb65c1f67507baa4307cec5441 50798 text/plain s13199-012-0159-1.pdf.txt