Unraveling environmental drivers of a recent increase in Swiss fungi fruiting

Büntgen, Ulf; Peter, Martina; Kauserud, Håvard; Egli, Simon (2013). Unraveling environmental drivers of a recent increase in Swiss fungi fruiting. Global Change Biology, 19(9), pp. 2785-2794. Blackwell Science 10.1111/gcb.12263

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Disentangling biotic and abiotic drivers of wild mushroom fruiting is fraught with difficulties because mycelial growth is hidden belowground, symbiotic and saprotrophic supply strategies may interact, and myco-ecological observations are often either discontinuous or too short. Here, we compiled and analyzed 115 417 weekly fungal fruit body counts from permanent Swiss inventories between 1975 and 2006. Mushroom fruiting exhibited an average autumnal delay of 12 days after 1991 compared with before, the annual number of fruit bodies increased from 1801 to 5414 and the mean species richness doubled from 10 to 20. Intra- and interannual coherency of symbiotic and saprotrophic mushroom fruiting, together with little agreement between mycorrhizal yield and tree growth suggests direct climate controls on fruit body formation of both nutritional modes. Our results contradict a previously reported declining of mushroom harvests and propose rethinking the conceptual role of symbiotic pathways in fungi-host interaction. Moreover, this conceptual advancement may foster new cross-disciplinary research avenues, and stimulate questions about possible amplifications of the global carbon cycle, as enhanced fungal production in moist mid-latitude forests rises carbon cycling and thus increases greenhouse gas exchanges between terrestrial ecosystems and the atmosphere.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR)
08 Faculty of Science > Institute of Geography > Physical Geography

UniBE Contributor:

Büntgen, Ulf

Subjects:

900 History > 910 Geography & travel

ISSN:

1354-1013

Publisher:

Blackwell Science

Language:

English

Submitter:

Monika Wälti-Stampfli

Date Deposited:

11 Aug 2014 14:03

Last Modified:

08 Dec 2015 14:54

Publisher DOI:

10.1111/gcb.12263

Uncontrolled Keywords:

climate change, forest ecology, fungi-host interaction, global carbon cycle, plant phenology, tree growth

BORIS DOI:

10.7892/boris.49641

URI:

https://boris.unibe.ch/id/eprint/49641

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