The genetic, structural, and biochemical bases for spectral variation within species (left) help illuminate the mechanistic basis for variation among species and the evolutionary processes that have shaped functional variation across the tree of life (right).

  
  Part of: Cavender-Bares J, Reich PB, Townsend PA, Banerjee A, Butler E, Desai A, Gevens A, Hobbie SE, Isbell F, Laliberté E, Meireles JE, Menninger H, Pavlick RP, Pinto-Ledezma J, Potter C, Schuman MC, Springer N, Stefanski A, Trivedi P, Trowbridge A, Williams L, Willis CG, Yang Y (2021) BII-Implementation: The causes and consequences of plant biodiversity across scales in a rapidly changing world. Research Ideas and Outcomes 7: e63850. https://doi.org/10.3897/rio.7.e63850