DNR confirms further spread of deer disease through Iowa


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Deer testing positive or chronic wasting disease in Iowa since 2013, via the Iowa DNR. 

Julia Poska | February 14, 2020

Forty-three deer killed by hunters and vehicles in Iowa during the 2019-2020 hunting season tested positive for chronic wasting disease, also known as “zombie deer disease.”

This brings the total number of confirmed cases in Iowa’s wild deer population to 89 since 2013, according to an Iowa Department of Natural Resources press release. That’s a 93% increase in one year.

Chronic wasting disease is a 100% fatal neurological disease found primarily in deer and elk that causes loss of bodily functions. An abnormal protein causes the infection, spread via bodily fluids from deer to deer. Some symptoms include excessive salivation, weight loss, listlessness and drooping ears and head.

The disease is in the same family as bovine spongiform encephalopathy, also known as Mad Cow Disease. The Centers for Disease Control reports that there is no conclusive evidence of the disease transferring to humans, but the center recommends avoiding contacts with infected venison.

The Iowa DNR collected samples from about 7,000 deer hunted or killed by cars across the state during the 2019-2020 hunting season. Samples from Woodbury, Winneshiek, Fayette and Decatur counties tested positive for the first time.

Officials have identified chronic wasting disease in wild deer populations in eight counties overall. Deer in several captive populations have tested positive as well (see this interactive map for more information).

For more information on how hunters can help limit the spread of chronic wasting disease, check out this flyer.

AP story showcases tension in Iowa over factory farming


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Large animal feeding operations (via Creative Commons). 

Julia Poska | February 13, 2020

A news story published last week featured an Iowa farmer who illegally built to un-permitted barns containing about 2,400 hogs. State officials were unaware of the concentrated animal feeding operations (CAFOs) for years. 

That farmer and others are fighting in what Associated Press correspondent John Flesher called a “battleground” in Iowa. Questions of pollution and regulation have inspired lawsuits, anti-CAFO alliances and neighborly tensions throughout the state, as animal feeding operations continue to proliferate.

Below are four key takeaways from Flesher’s in-depth report. Read the full-length story on apnews.com.

  1. The federal government relies state data for animal feeding operation data. In many cases, states keep tabs on only the largest operations (in Iowa, a true “CAFO” has a minimum of 1,000 species-variable “animal units” per confinement). The EPA counted about 20,300 CAFOs nationwide in 2018.  The U.S. Department of Agriculture estimates there are about 450,000 animal feeding operations–places animals are raised in confinement (of any size)– nationwide.
  2. The Iowa Department of Natural Resources discovered thousands of previously undocumented animal feeding operations in 2017.  Some point to this case as proof of under-regulation, but state regulators said the discoveries indicated a well-functioning system.
  3. Under the 1972 Clean Water Act, especially large livestock operations need permits for discharging waste into waterways. Since such discharges are often unintended, however, state and federal environmental agencies can only mandate permits for operations caught discharging waste. In some cases, farmers have been able to make spill-proofing improvements instead of applying for permits.
  4. Studies show that livestock operations and anaerobically decomposing waste release massive amounts of ammonia and greenhouse gases. Because such emissions are difficult to measure, though, they are unregulated by the Clear Air Act. Studies have additionally correlated these emissions to human health issues such as childhood asthma. Cause/effect is impossible to prove, however.

 

DNR 2019 precipitation summary recalls Iowa’s rainy year


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From the Iowa Department of Natural Resources. 

Julia Poska | January 10, 2020

2019 was Iowa’s 12th wettest year on record, with an average of 41.49 inches of rainfall across the state, according to the state Department of Natural Resources. Rainfall in May, September and October was especially high, while the summer months experienced below average rainfall.

The two-year 2018/2019 period was the wettest on record, with 19 more inches of precipitation than average. Stream flows were above normal all 2019 following heavy snow in the winter months. The rainy spring and fall seasons are indicative of projected climate change models for the region.

2019 temperatures in Iowa were cooler than average, however, by 1.2 degrees Fahrenheit. During the January “Polar Vortex,”one station in Emmet County recorded a -59 degree windchill. Summer was slightly cooler than average, though July and September were warm, andChristmas week broke record temperature highs.

 

It’s Invasive Species Awareness Month!


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Familiarize yourself with invasive Garlic Mustard, pictured here,  so you can pull it when you see it (flickr). 

Julia Poska| May 10, 2019

Invasive species often travel across continents via human transportation vessels and the cargo they carry. These species often have no natural predators in their new homes, so their populations explode. The native species that the invaders in turn prey upon are not adapted to defend themselves against these new predators, giving the invasive species an advantage over the native predators that now must share their prey.  The result is a devastating chain reaction that can ripple through entire ecosystems.

Iowa Governor Kim Reynolds declared May Invasive Species Awareness Month to encourage the public and private sectors to join forces and amp up the fight against ecosystem invaders. Invasive species in Iowa harm agriculture and seriously degrade state parks, which are a source of tourism revenue.

One of Iowa’s most problematic invasive pests is the Emerald Ash Borer, a beetle from east Asia that has killed millions of ash trees across the country in the last 17 years. Another common offender is Garlic Mustard, a tasty herb which is spreading rapidly through Iowan woodlands and crowding out native plant species. A full guide to problematic invasive plant species found in Iowa’s woodlands can be found here.

Gardeners will be familiar with many invasive bugs and weeds, like the Japanese Beetle, the Brown Marmorated Stink Bug and bull thistles. These pests and others can pose real threats to Iowa farmers, and many are tracked by the Iowa State Ag Extension Office.

How can you help?

  • Do not buy or sell firewood from outside your county. Firewood can contain and spread invasive insects like the Emerald Ash Borer.
  • Scrub shoes and clean clothes before and after trips outdoors to avoid spreading seeds, especially when visiting public lands.
  • Remove invasive plants where you recognize them. Some groups and parks host volunteer days to pull invasive species.

DNR reports 3% increase in Iowa greenhouse gas emissions


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This pie chart shows 2017 greenhouse emissions in Iowa by sector (from the 2017 Greenhouse Gas Inventory Report). 

Julia Poska | December 28th, 2018

Greenhouse gas emissions in Iowa rose 3 percent from 2016 to 2017, according to a new report from the state Department of Natural Resources.  The report accounted for 131 million metric tons of emissions released throughout the state in various sectors including energy, agriculture and solid waste.

The largest sources of increase were waste and industrial processes. Emissions from waste rose 28.62 percent due to increased decomposition of older waste in landfills. Emissions from industrial processes rose 31.73 percent percent, largely due to increased production of ammonia, up over 180 percent from 2016. The only sector to see decrease was natural gas production and distribution, which decreased about 10 percent and accounts for only 1 percent of total emissions.

Agriculture contributes about 30 percent of the state’s greenhouse gas emissions,  mainly methane and nitrous oxide, which are respectively about 25 and 298 times more potent greenhouse gases than carbon dioxide. These emissions largely come from animal waste and soil management.

Despite this increase, total emissions are down 6 percent from 2008.  The DNR projects that emissions will continue rising through at least 2020, and drop a bit more by 2030.

Leaves drop early due to fall drought


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Vibrant fall leaf colors may be missing in some parts of Iowa this year due to drought conditions. (Ashley Webb/flickr)
Jenna Ladd | September 26, 2017

Tree leaves in Iowa began changing colors and falling to the ground earlier than usual this year due to drought conditions.

Leaf color change has a lot to do with weather conditions, according to the Iowa Department of Natural Resources. The U.S. Drought Portal reveals that about thirty percent of Iowa is currently seeing abnormally dry conditions and about twenty-five percent of the state is experiencing moderate drought.

Kandyce Weigel is the administrative assistant of the Iowa Department of Natural Resources’ State Forest Nursery. She told the Des Moines Register, “When they (trees) don’t have enough moisture, they’ll start to go into dormancy. They need moisture and they need cool nights. And usually, the light change — when we have less light as the days get shorter — that cues them to change, too. But that dryness is cuing them to push into dormancy earlier.”

In a typical year, leaves change color in northern Iowa between the last week of September and the second week of October, from the first to third weeks of October in central Iowa and from the second week through the end of October in southern Iowa.

Unfortunately, dry conditions cause leaves to die and fall from trees before they burst into autumn’s hues of red, yellow and orange.

Asbestos assessment and removal funds still available for small communities


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Exposure to asbestos has been linked to higher incidences of cancer, weaker immune systems and other health effects. (Aaron Suggs/flickr)
Jenna Ladd| August 29, 2017

The Derelict Building Grant Program still has funds available for qualifying communities looking to inspect and properly remove asbestos from abandoned buildings, according to a recent announcement by the Iowa Department of Natural Resources.

Derelict Building Grant Program funding is awarded annually to communities of 5,000 residents or less on a competitive basis. It provides financial support needed to asses for and remove asbestos, to deconstruct or renovate structures and to limit demolition materials that end up in landfills.

So far in 2017 the program has provided $350,000 in support to 18 communities across the state. The largest grant of $60,000 went to Osceola for the abatement and renovation of a commercial building that the city plans to use to spur economic development in the area.

“If a building collapses and the presence of asbestos is unknown, it can increase the economic burden on the community,” said the DNR’s Scott Flagg in a recent statement. He continued, “In addition, a building’s appearance may not reveal the actual condition of the structure. Building assessments can assist communities determine how best to address an abandoned building.”

In the same statement, the DNR announced that the program has an additional $50,000 to be disbursed this year. Applications will be accepted until funds are no longer available.

Applications for the next round of funding are due April 4, 2018.