“…Elevational patterns can be complex and nonlinear, with traits influenced by several interacting drivers such as competition, ecosystem productivity, soil moisture and fertility, clear‐sky turbidity, hours of sunshine, wind, season length, geology and human land use (Körner, 2007; Sundqvist et al, 2013). Mountains are highly heterogeneous, with environmental controls differing across local, regional and continental scales (Jobbágy et al, 1996; Midolo et al, 2019; Morley et al, 2018; Sundqvist et al, 2013). Fundamental elevational trends may not hold across latitudes, with information on trait variation in the tropics limited compared to temperate northern hemisphere regions (Wilson et al, 1999, Jetz et al, 2016, but see Chaturvedi et al, 2011; Poorter et al, 2008; Wright et al, 2010).…”