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IMAGE: Atmospheric drying (referred to as water vapor pressure deficit or VPD) is expected to increase as a result of climate change. This could reduce crop yields and make trees shorter. view more
Credit: Maria H Park
A global observation of an ongoing atmospheric drying known by scientists as a rise in vapor pressure deficit has been observed worldwide since the early 2000s. In recent years, this concerning phenomenon has been on the rise, and is predicted to amplify even more in the coming decades as climate change intensifies.
In a new paper published in the journal Global Change Biology, research from the University of Minnesota and Western University in Ontario, Canada, outlines global atmospheric drying significantly reduces productivity of both crops and non-crop plants, even under well-watered conditions. The new findings were established on a large-scale analysis covering 50 years of research and 112 plant species.
P. LOWRY/MISSOURI BOTANICAL GARDEN
Over the past decade, botanist Pete Lowry has noticed a worrying trend in his field. An expert on the
Sciodaphyllum (formerly
Schefflera) genus of neotropical plants, he used to have a relatively easy time doing fieldwork abroad, he says. Now, however, he and his colleagues at the Missouri Botanical Garden face a mountain of logistical hurdles to gain permission to work in the various countries they want to visit, let alone bring samples back home with them.
For example, although one of Lowry’s study species,
S. patulum, extends from southeastern Ecuador through Peru and into Bolivia, he says he often has to limit the scope of his research to a single country to avoid engaging in the time-consuming and costly process of obtaining permits in each. It’s frustrating, he says, because “with the exception of islands and locally endemic species, species don’t know border limits. [They] occur wherever they occur.”
Executive changes for family-owned organic grower
Duncan Family Farms, a family-owned, multi-regional grower of more than 9,000 acres of certified organic produce, announced Will Feliz has been appointed CEO, and co-founder Arnott Duncan has assumed the position of chairman.
Feliz joined Duncan Family Farms as COO in 2009. He became president in 2016, returned as president in March 2019 after a brief hiatus, and now oversees the company’s strategic growth plans along with all day-to-day operations. Duncan, a fourth-generation Arizona farmer who founded the company with his wife Kathleen in 1985, will now focus on agronomics as the company continues to refine large-scale organic production in Arizona, California, Oregon, New York and potential new locations.
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