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DNR News Releases

Archive by tag: studyReturn

Radio tagged Iowa birds part of international migration survey

• 8/27/2024 3:00:00 PM
• View Count 5385

Anna Buckardt Thomas was crouched behind a tree about 20 paces off trail at Brown’s Woods county park, watching a mist net while playing a recording of a male wood thrush on a loop hoping to elicit a response.

Equipment to measure waves deployed this week in Upper Mississippi River Pool 13

• 5/28/2024 2:18:00 PM
• View Count 2542

CLINTON, Iowa - A study to learn more about waves and water clarity on the Mississippi River is underway after wave monitors were deployed within several locations on Pool 13.

Researchers looking for insight into wild turkey population decline

• 1/9/2024 3:29:00 PM
• View Count 6811

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 4116

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 4982

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 5628

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 9101

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 12225

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 3556

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 5738

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.