This painting, presented at the 2017 Annual Meeting of the Ecological Society of America, portrays a multi-year project that examined the effects of rainfall on plant cover and phenology at the Jornada LTER, a Chihuahuan Desert grassland in NM. Our experiments consisted of reducing 80%, control, and adding 80% incoming precipitation. Greenness (2G_Rbi) was analyzed from daily plot-scale photographs taken from 2014-2017 using Windscapes Timelapse Cameras.
Each panel accurately visualizes % plant cover by functional group for each rainfall manipulation treatment: drought (-80% intercepted precipitation, top panel), control (middle panel), and irrigated (+80%, bottom panel). Plant cover (%) is used as a proxy for annual net primary production (ANPP).
Overlay acrylic shingles indicate mean plant phenology by grasses and shrubs through time for each treatment, where greenness intensity corresponds to phenology throughout the course of the summer growing season. The intensity of greenness through time for perennial grasses is painted on the top portion of each shingle and for perennial shrubs on the bottom portion.
•Drought shortens grass phenological cycle, but the photosynthetic peak is maintained. Shrub phenology is not affected by drought.
•Irrigated treatments impose no effects on grass or shrub phenology.
•Climate change-induced drought and differential plant phenology responses may strengthen woody plant encroachment.
Jornada LTER, Peter Marting & AEOR 2017, ASU Graduate and Professional Student Association, Laureano Gherardi, Tweedie Lab at UTEP, & Henry Schoebel
Artwork by Courtney Currier
Oil on high density fiberboard (12 x 48") and acrylic plastic
más hermosa que una flor
8.5 x 11", watercolor and micropen
features Hartweg evening primrose from the Konza Prairie Biological Station, Manhattan, KS
ascending the uplands to look out
4 x 6", watercolor
view from the uplands on a particularly green day, Konza Prairie Biological Station. Manhattan, KS.
jornada del muerto vive
36 x 48", acrylic on canvas
view of Mt. Summerford at the Jornada Experimental Range.