TY - JOUR T1 - UV-B absorbing pigments in spores: biochemical responses to shade in a high-latitude birch forest and implications for sporopollenin-based proxies of past environmental change JO - POLAR RESEARCH PY - 2011/01/01 AU - Fraser WT AU - Sephton MA AU - Watson JS AU - Self S AU - Lomax BH AU - James DI AU - Wellman CH AU - Callaghan TV AU - Beerling DJ ED - DO - DOI: 10.3402/polar.v30i0.8312 VL - 30 Y2 - 2024/12/22 ER -