Gisela Gaio-Oliveira

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The aim of this study was to compare the physiological responses to increased nitrogen (N) supply between the nitrophytic lichen Xanthoria parietina (L.) Th. Fr. and the acidophytic lichen Evernia prunastri (L.) Ach. The two lichens were exposed to a weekly dosage of 0.05, 0.1, 0.2, 0.6 or 2.4 g N m−2 for 2 months, administered as NH4NO3 dissolved in(More)
The objective of this work was to evaluate the spatial and temporal impact of dust-pollution in the vicinity of a cement industry, located in an area with dry climate. The spatial impact integrated over time was evaluated from the concentrations of Ca, Fe and Mg in in-situ Xanthoria parietina. The temporal pattern was assessed through one-month transplants(More)
This paper presents a unique survey on the role of botanic gardens as educational institutions that communicate plant diversity and conservation. An online survey was created to evaluate the present strategies developed by botanic gardens from all over the world to their visiting public. Dependent on their resources, either human, financial or both, all of(More)
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