Corn genetic heritage the strongest driver of chemical defenses against munching bugs
CHAMPAIGN, Ill. — Plants release chemical distress signals when under attack from chewing insects. These “911 calls,” as entomologist Esther Ngumbi refers to them, alert other bugs that dinner or a nice place to lay their eggs is available nearby. If predatory or parasitic insects detect the right signal, they swoop in like saviors to make a meal out of – or lay their eggs in – the bodies of the herbivore insects.
Bat box design, placement matter for energy balance in endangered bats
URBANA, Ill. – Imagine if you had to catch every bite of your dinner with your mouth, while flying, in the dark. You’d be exhausted, and probably pretty hungry. Though some bats go for sedentary insects, most catch their food on the wing every single night. Let that sink in.
Protected tropical forest sees major bird declines over 40 years
URBANA, Ill. – Deep in a Panamanian rain forest, bird populations have been quietly declining for 44 years. A new University of Illinois-led study shows a whopping 70% of understory bird species declined in the forest between 1977 and 2020. And the vast majority of those are down by half or more.
Neighborhood trees may protect against high medical costs, poor health
URBANA, Ill. – In neighborhoods lacking tree cover, residents suffer poorer health and incur hundreds of dollars more in medical costs than neighbors on leafier blocks. That’s according to a new University of Illinois study of 5 million Americans over a 13-year period.
New estimation strategy improves soil carbon sampling in agricultural fields
There is much more carbon stored in Earth’s soil than in its atmosphere. A significant portion of this soil carbon is in organic form (carbon bound to carbon), called soil organic carbon (SOC). Notably, unlike the inorganic carbon in soils, the amount of SOC, and how quickly it is built up or lost, can be influenced by humans. Since its advent about 10,000 years ago, agriculture has caused a significant amount of SOC to be released into the atmosphere as carbon dioxide, contributing to climate change.
How do we solve the problem of agricultural nutrient runoff?
Agricultural runoff from Midwestern farms is a major contributor to a vast “dead zone” in the Gulf of Mexico. Nitrogen, phosphorous and other farm nutrients drain into the Mississippi River, which empties into the Gulf, spurring algae to overpopulate and suffocating other aquatic life. Illinois is a main culprit in this ongoing environmental blight. News Bureau life sciences editor Diana Yates spoke with U. of I.
Collaboration with Mexico will help conserve grassland birds
Ensuring long term sustainability is the goal of College of Agricultural, Consumer and Environmental Sciences (ACES) professor Mike Ward’s ongoing work to track and study grassland birds that migrate between the United States and Mexico.
Hyperspectral sensing and AI pave new path for monitoring soil carbon
URBANA, Ill. – Just how much carbon is in the soil? That’s a tough question to answer at large spatial scales, but understanding soil organic carbon at regional, national, or global scales could help scientists predict overall soil health, crop productivity, and even worldwide carbon cycles.
iSEE, NRES Seeking Levenick Resident Scholar for 2022-23
The Institute for Sustainability, Energy, and Environment (iSEE), in partnership with the Department of Natural Resources and Environmental Sciences (NRES), invites applications and nominations for the Stuart L. and Nancy J. Levenick Resident Scholar in Sustainability Leadership for the 2022-23 academic year at the University of Illinois Urbana-Champaign.
NRES professor named associate director for campus sustainability
Natural Resources and Environmental Sciences Associate Professor Jennifer Fraterrigo has been named Associate Director for Campus Sustainability in the Institute for Sustainability, Energy, and Environment (iSEE).