Insights: Tyler Refsland
In Insights we discover the story (and the people) behind a recent publication in Functional Ecology: what inspired the authors to do the research, how did the project develop and what wider impact might the work have?
In this week’s Insights, Tyler Refsland from the University of Illinois Urbana-Champaign, USA, talks about his paper titled: ‘Fire increases drought vulnerability of Quercus alba juveniles by altering forest microclimate and nitrogen availability’. Refsland and his colleague, Jennifer Fraterrigo present the results of an experiment where they imposed drought on natural and juvenile oak juvenile to disentangle the mechanisms underlying the effects of fire tree responses to drought. While postfire rerouting can temporarily improve water relations, fire exacerbates drought-driven declines in growth by both promoting a warmer microclimate and intensifying nitrogen limitation. Based on their results, Refsland & Fraterrigo postulate that the effect of fires ripple into the future by changing microclimate and resource condition, which could ultimately limit tree recruitment.
This week Bjorn talks to Angela Prendin about her article,