Data from: Evolution of nutrient resorption across the herbaceous genus Helianthus
Rea, Ashley M., University of Georgia
Mason, Chase. M., University of Georgia, University of Central Florida
Donovan, Lisa A., University of Georgia
Published Jun 22, 2019 on Dryad.
Cite this dataset
Rea, Ashley M.; Mason, Chase. M.; Donovan, Lisa A. (2019). Data from: Evolution of nutrient resorption across the herbaceous genus Helianthus [Dataset]. Dryad. https://doi.org/10.5061/dryad.503ds62
Foliar nutrient resorption is a key modulator of plant nutrient use. However, evolutionary patterns for nutrient resorption remain unclear, especially in herbs. We measured nitrogen and phosphorus resorption on pre-selected leaves across the Helianthus (sunflower) genus in a common garden in Athens, GA. We analyzed our data with published leaf traits and native habitat environmental data. Using phylogenetically-controlled analyses, we tested if (1) nutrient resorption correlates with leaf economic, vasculature, and defense traits through evolutionary time, and 2) native habitat environment predicts nutrient resorption evolution. For Helianthus, nutrient resorption capacity is greater in resource-conservative species, as previously defined for Helianthus with a principle components analysis of leaf economic spectrum traits (photosynthetic rate, respiration rate, leaf lifespan, leaf mass per area, and green-leaf N and P concentration). Nutrient resorption capacity also evolutionarily correlates with individual leaf economic traits, though not always as expected based on broad species surveys. Greater nutrient resorption is also positively associated with leaf chemical defenses, but not leaf vasculature or senescence rate. Finally, nitrogen resorption evolution increases with native habitat precipitation, but native habitat soil fertility does not predict nitrogen or phosphorus resorption. Our results suggest nutrient resorption evolution is more closely tied to resource economic strategy than native habitat.
Rea_EVOLUTION OF NUTRIENT RESORPTION ACROSS THE HERBACEOUS GENUS HELIANTHUS_Area-based_leaf_data_20180806
Area-based leaf data and climate and soil fertility data for 27 Helianthus species and 1 Phoebanthus species.
Rea_EVOLUTION OF NUTRIENT RESORPTION ACROSS THE HERBACEOUS GENUS HELIANTHUS_Massbased_leaf_data_20180806
Mass-based leaf data and climate and soil fertility data for 27 Helianthus species and 1 Phoebanthus species.