Table 1.

Summary of niche breadth comparisons for three fungal guilds.

Guild	Plant pathogens		Arbuscular mycorrhizal fungi		Saprotrophs
Source	Chaloner et al. (2020)		Davison et al. (2021)		Maynard et al. (2019)
Taxa	209 a		268		23
Scale	Global b		Global		Regional
Axis	Temperature	Host range	Climate c	Soil chemistry d	Temperature	Moisture
Method	Experiment	Observation	Observation	Observation	Experiment	Experiment
Niche	Fundamental	Realised	Realised	Realised	Fundamental	Fundamental

^a Temperature responses for growth in culture, 187 fungi and 27 oomycetes.

^b Probable sampling bias toward temperate climate species (Chaloner et al., 2021).

^c Mean annual temperature and mean annual precipitation.

^d Includes pH, organic C, N, P, K, Mg, Ca.