On this visit, we would like to take the following data: -non-destructive microclimate data around the ferns (temp, relative humidity, light, etc) -non-destructive measurements of chlorophyll fluorescence (Fv/Fm) -small surface soil samples (~1 tablespoon each, 3-6 samples per visit) for soil water potential -small leaf samples from fern sporophytes (~3-5 sq cm each, 3-6 per visit) for leaf water potential -removal of ~3-6 fern gametophytes per visit (these are 2-3 mm in diameter and abundant at these sites) -These ferns are all growing along the trail. We would like to take data ~once per week for the next 1-2 months, if possible (but I will make separate RAMS reservations for each visit). Essentially, this is a really unique opportunity to study the natural desiccation process for fern gametophytes in the field. Almost no data has been collected on fern gametophytes in the field, especially for ecosystems with seasonal drought.

Approved