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DNR News Releases

Archive by tag: studyReturn

Researchers looking for insight into wild turkey population decline

• 1/9/2024 3:29:00 PM
• View Count 4852

The reintroduction of wild turkeys to Iowa’s landscape has been celebrated as a conservation success story for the past 25 years. But Iowa’s turkey population is showing troubling signs: the numbers are down, nests are failing and fewer poults are surviving. And it’s not just an Iowa problem – turkey populations are declining in all states in the Midwest and across the eastern half of the United States.

2022 Statewide Materials Characterization Study now available

• 11/4/2022 4:32:00 PM
• View Count 3824

DES MOINES — The 2022 Statewide Materials Characterization Study identifying and quantifying materials being landfilled in Iowa is now available. The study will be the basis for implementing new and updated programs and policies and enhancing existing efforts to further reduce and recycle end of life materials.

Study tracks reclusive, threatened turtle species to better understand habitat needs

• 8/30/2022 1:19:00 PM
• View Count 4365

The flat-bottomed boat noisily snaked through the narrow path through the towering cattails, its mud motor pushing it to a specific place in the marsh. On board, is a small but important passenger – a nearly year-old Blanding’s turtle outfitted with a battery powered tracking device about the size of a dime with a small antenna.

Study aims to shed light on reclusive mudpuppy

• 12/17/2019 1:05:00 PM
• View Count 5274

Guttenberg, Iowa - Kevin Hanson had to throttle back his heavy flat-bottomed aluminum boat as he began to break up a thin layer of ice that had formed overnight on the slack water in Pool 11 of the Upper Mississippi River.

Study shows new recovery rate of containers in Iowa

• 1/18/2018 1:28:00 PM
• View Count 8765

DES MOINES -- A new Waste Characterization Study completed by the Iowa DNR has determined the recovery rate for containers covered under the bottle deposit law is 71 percent, down from 86 percent in 2007. The decrease in the recovery rate is consistent with other states that also have a bottle bill. 

DNR releases 2017 Iowa Statewide Waste Characterization Study; food waste and plastics top the list

• 12/14/2017 11:47:00 AM
• View Count 11765

DES MOINES — A recently released study shows what Iowans are throwing away, and what could be spared from the landfill. 

Red Dye Study will examine water flow through auxiliary Lock 14 near the Quad Cities

• 6/13/2017 12:43:00 PM
• View Count 3357

U.S. Geological Survey scientists will inject a harmless, bright red fluorescent dye into the auxiliary lock at Locks and Dam 14 on the Mississippi River near Pleasant Valley, Iowa, June 13, weather permitting. If needed, a backup date is scheduled for June 27.  

Annual Pheasant Survey Begins August 1

• 7/19/2016 1:21:00 PM
• View Count 5545

Iowa’s 15-day annual pheasant population survey begins on Aug. 1, and wildlife experts say all indicators are pointing to a stable to increasing population of the popular game bird.