Selected tag(s): monarch butterflies

Once a pesky plant for farmers, this weed presents a new opportunity

Although milkweed contains toxins, it rarely poses any significant threat to people or animals. Grazing livestock generally avoid milkweeds when sufficient forage is available. (Photo credit: E. Dronkert)

A recent article called milkweed a “yield-robbing weed” for farmers.

Milkweed has a reputation for encroaching on cropland where it can compete with crops for soil and light. The plant can also create a nuisance on ranchlands, as cattle can be poisoned when poor foraging conditions lead hungry cows to milkweed-concentrated areas as a last resort.

This is why milkweed is difficult to find on most farms and ranches today. Along with climate change, it’s also a key reason why the beloved monarch butterfly population has declined by more than 90 percent in the last two decades.

The importance of milkweed

Milkweed is essential for monarchs, since butterflies need the plant to lay their eggs, and caterpillars exclusively feed on the milky sap-filled plant. It’s what makes monarchs poisonous to predators.

Increased herbicide application across the agricultural landscape, as well as mowing in roadside ditches and marginal areas, is eradicating milkweed from rural areas in the Corn Belt and other key regions of the monarch’s migration route.

In order to turn things around for the monarch, we need to change the incentive for landowners from spraying and mowing to protecting and restoring this vital habitat. Read More »

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How the Midwest can save the monarch

Monarch lands on a milkweed in the Midwest

Monarch populations have declined by 90 percent in the past two decades due, in large part, to the loss of milkweed across the Midwest.

Once again, summer has brought the highly anticipated sightings of monarch butterflies across the country. An online tracker from Journey North shows the beloved orange and black butterflies fanning across the Northeast and Upper Midwest, where the eastern population is completing its northern migration. I spotted a monarch in Missouri just last week.

It’s a wonderful sight and an inspiring reminder of the monarch’s magical migration. But the opportunity to witness this natural miracle is dwindling. Over the last two decades, the monarch population has declined by 90 percent, bringing the butterfly dangerously close to extinction.

There are many factors contributing to this devastating loss, from climate change to deforestation. But a major contributor is the loss of milkweed habitat across the U.S., particularly in the Midwest where native prairies have largely been converted for agricultural use. Monarchs need milkweed to lay their eggs – eggs that turn into caterpillars that feed exclusively on the milky plants. So how do we restore this vital milkweed habitat where monarchs need it the most? Read More »

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Three threats to the monarch butterfly’s winter habitat and what we can do about it

Monarchs cluster on oyamel fir branches to stay warm. Tens of thousands of monarchs can cluster on a single tree.

Monarchs cluster on oyamel fir branches to stay warm. Tens of thousands of monarchs can cluster on a single tree. Photo credit: Pablo Leautaud (license)

Just as some people travel great distances to spend the holiday season with family and friends, monarch butterflies, too, make a long journey to spend the winter gathered together in the oyamel fir forests of Mexico.

The eastern population passes through Oklahoma and Texas on its annual migration south, stopping periodically to fuel up on nectar, ultimately reaching their destination in the mountains of central Mexico.

Unfortunately, the monarch’s winter home is under stress, which has contributed to a 90-percent decline in the species’ population over the last two decades. Read More »

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Monarchs still need milkweed, and farmers are growing it

Rain builds over a field near Lubbock, Texas. Photo credit: Flickr user Craig O'Neal

Rain builds over a field near Lubbock, Texas. Photo credit: Flickr user Craig O'Neal

I am watching the rain pour down outside my window as I write this blog. El Niño is once again giving central and north Texas a good drenching, which has brought with it some severe and deadly flood conditions. But the rains are a welcome sight to Texas farmers and ranchers who have become all too used to drought and wildfire conditions. And they aren’t the only ones benefitting from the heavy rains.

All this wet weather has resulted in a spectacular display of spring wildflowers, including vast expanses of milkweed and nectar plants that the iconic North American monarch butterflies need to survive and thrive.

Recent headlines suggest that milkweed loss is just one of several threats to monarch populations, with drought, habitat fragmentation and reduced availability of nectar plants also influencing the species’ decline. In reality, all of these threats are interconnected in a recipe that could spell disaster for the monarch. Read More »

Posted in Climate, Ecosystems, Habitat, Habitat Exchange, Partnerships| Also tagged , , , , , , , , , , , , , , , , | Read 2 Responses
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