TY - JOUR A1 - Krah, Franz-Sebastian A1 - Bässler, Claus T1 - What can intraspecific trait variability tell us about fungal communities and adaptations? T2 - Mycological progress N2 - Analyses of species functional traits are suitable to better understand the coexistence of species in a given environment. Trait information can be applied to investigate diversity patterns along environmental gradients and subsequently to predict and mitigate threats associated with climate change and land use. Species traits are used to calculate community trait means, which can be related to environmental gradients. However, while species traits can provide insights into the mechanisms underlying community assembly, they can lead to erroneous inferences if mean trait values are used. An alternative is to incorporate intraspecific trait variability (ITV) into calculating the community trait means. This approach gains increasing acceptance in plant studies. For macrofungi, functional traits have recently been applied to examine their community ecology but, to our knowledge, ITV has yet to be incorporated within the framework of community trait means. Here, we present a conceptual summary of the use of ITV to investigate the community ecology of macrofungi, including the underlying ecological theory. Inferences regarding community trait means with or without the inclusion of ITV along environmental gradients are compared. Finally, an existing study is reconsidered to highlight the variety of possible outcomes when ITV is considered. We hope this Opinion will increase awareness of the potential for within-species trait variability and its importance for statistical inferences, interpretations, and predictions of the mechanisms structuring communities of macro- and other fungi. KW - Community ecology KW - functional traits KW - community-weighted mean KW - fixed average KW - specific average KW - fungi KW - fruit body Y1 - 2021 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/63745 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-637454 SN - 1861-8952 N1 - Open access funding enabled and organized by Projekt DEAL. VL - 20 IS - 7 SP - 905 EP - 910 PB - Springer CY - Berlin ; Heidelberg ER -