Global analysis reveals an environmentally driven latitudinal pattern in mushroom size across fungal species

  • Although macroecology is a well-established field, much remains to be learned about the large-scale variation of fungal traits. We conducted a global analysis of mean fruit body size of 59 geographical regions worldwide, comprising 5340 fungal species exploring the response of fruit body size to latitude, resource availability and temperature. The results showed a hump-shaped relationship between mean fruit body size and distance to the equator. Areas with large fruit bodies were characterised by a high seasonality and an intermediate mean temperature. The responses of mutualistic species and saprotrophs were similar. These findings support the resource availability hypothesis, predicting large fruit bodies due to a seasonal resource surplus, and the thermoregulation hypothesis, according to which small fruit bodies offer a strategy to avoid heat and cold stress and therefore occur at temperature extremes. Fruit body size may thus be an adaptive trait driving the large-scale distribution of fungal species.

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Author:Claus BässlerORCiDGND, Roland Brandl, Jörg Müller, Franz S. Krah, Arthur Reinelt, Hans Halbwachs
Parent Title (English):Ecology letters
Place of publication:Oxford
Document Type:Article
Date of Publication (online):2021/02/10
Date of first Publication:2021/02/10
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2021/08/09
Tag:fungal traits; global biomes; latitudinal gradient; mean fruit body size; saprobic and ectomycorrhizal basidiomycetes
Page Number:10
First Page:658
Last Page:667
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie
Licence (German):License LogoCreative Commons - Namensnennung 4.0