Asplund, Johan and Wardle, David A.
(2012).
Contrasting changes in palatability following senescence of the lichenized fungi Lobaria pulmonaria and L. scrobiculata.
Fungal Ecology. 5
, 710–713
[Journal article]
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Official URL: http://dx.doi.org/10.1016/j.funeco.2012.06.004
Abstract
Epiphytic lichens can contribute significantly to ecosystem nutrient input because they efficiently accumulate atmospheric mineral nutrients and, in the case of cyanolichens, also fix nitrogen. The rate at which carbon and other nutrients gained by lichens enters the ecosystem is determined by lichen litter decomposability and by invertebrate consumption of lichen litter. In turn, these processes are driven by the secondary compounds present in senesced lichens. Therefore, we explored how lichen palatability and concentrations of secondary compounds change with tissue senescence for Lobaria pulmonaria, a green algal lichen with cyanobacterial cephalodia, and L. scrobiculata, a cyanobacterial lichen. During senescence both lichens lost 38-48% of their stictic acid chemosyndrome, while m-scrobiculin and usnic acid in L. scrobiculata remained unchanged. Snails preferred senesced rather than fresh L. pulmonaria, while senesced L. scrobiculata were avoided. This provides evidence that species with labile secondary compounds will have higher turnover rates, through consumption and decomposition, than those producing more stable secondary compounds.
Authors/Creators: | Asplund, Johan and Wardle, David A. | ||||
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Title: | Contrasting changes in palatability following senescence of the lichenized fungi Lobaria pulmonaria and L. scrobiculata | ||||
Series/Journal: | Fungal Ecology (1754-5048) | ||||
Year of publishing : | 2 September 2012 | ||||
Volume: | 5 | ||||
Page range: | 710–713 | ||||
Publisher: | Elsevier | ||||
ISSN: | 1754-5048 | ||||
Language: | English | ||||
Publication Type: | Journal article | ||||
Refereed: | Yes | ||||
Article category: | Scientific peer reviewed | ||||
Version: | Accepted version | ||||
Full Text Status: | Public | ||||
Agris subject categories.: | F Plant production > F40 Plant ecology | ||||
Subjects: | (A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Botany (A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology | ||||
Keywords: | Cepea hortensis, decomposition, gastropods, herbivory, secondary compounds, snails | ||||
URN:NBN: | urn:nbn:se:slu:epsilon-e-645 | ||||
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-645 | ||||
Additional ID: |
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ID Code: | 9112 | ||||
Department: | (S) > Dept. of Forest Ecology and Management | ||||
External funders: | Swedish Research Council | ||||
Deposited By: | Dr Johan Asplund | ||||
Deposited On: | 04 Oct 2012 08:48 | ||||
Metadata Last Modified: | 02 Dec 2014 10:52 |
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