Journal Article 3 carbon isotope ratio 059QF0KO0R 2 Research Support, Non-U.S. Gov't 2 Water 2 27YLU75U4W 1 Meta-Analysis 1 mehr ... N762921K75 1 Nitrogen 1 Phosphorus 1 Quercus robur (pedunculate oak) 1 active uptake 1 adaptation 1 altitude 1 common garden 1 drought tolerance 1 environmental gradient 1 hemiparasitic plants 1 intraspecific variability 1 intrinsic water use efficiency 1 leaf nutrient content 1 meta-analysis 1 mineral nutrients 1 nitrogen parasitism hypothesis 1 passive uptake 1 phenotypic variability 1 plant functional traits 1 postglacial recolonization 1 spring phenology 1 weniger ...