Category Archives: Austin Invasive Species Corps

June 6, 2013 · 7:10 am

Citizen scientists train to hunt the top 24 invasive plants in Austin

My sketchbook of the top 24 invasive plant species in Austin, Texas

My sketchbook of the top 24 invasive plant species in Austin, Texas

As the Invasive Hunter, I always have to keep my skills sharp, so on a Saturday in May, I attended an invasive species workshop at the Lady Bird Johnson Wildflower Center. This workshop was designed especially for citizen scientists who are working with the city of Austin as part of the Austin Invasive Plants Management Plan.

The city of Austin and the Invaders of Texas Program teamed up to train local volunteers how to identify and monitor invasive plants. Citizen scientists who volunteer with this program get to work side by side with city staff to develop a map of where invasive plant species are located, and the city of Austin will use this map to determine how to best treat or remove the invaders.

Learning up close how to identify invasive plants

Learning up close how to identify invasive plants

Ms. Jessica Wilson, Wildland Conservation education manager with the city of Austin, welcomed us to the workshop, and Ms. Jessica Strickland, Invasive Species Program Manager with the Wildflower Center, gave a great talk about invasive species in Texas and those around Austin, the Invaders of Texas Program, and how to report sightings of invasive species online and through the TX Invaders mobile app.

Top 24 invasive plant species in the city of Austin

Top 24 invasive plant species in the city of Austin

We learned about the top 24 invasive plant species in Austin from samples in the Wildflower Center’s library, and got to know them better by being able to see them, feel their leaves and other identifying features, and sketch samples of them to help us remember them when we’re out in the field.

A sample of kudzu, a nasty invasive species

A sample of kudzu, a nasty invasive species

The top 24 invasive plants in Austin cover herbaceous, woody, vines, and aquatic species and include my nemesis, the Giant Reed (Arundo donax)!

We practiced identifying sample invasive plants in a field outside of the Wildflower Center

We practiced identifying sample invasive plants in a field outside of the Wildflower Center

Besides polishing up my knowledge about invasive plants, I also got to spend some time with other citizen scientists (excuse me, future invasive hunters!) and staff from the city of Austin who were a lot of fun.

Commander Ben and Austin invasive species volunteers getting ready for action

Commander Ben and Austin invasive species volunteers getting ready for action

The workshop I attended was part of a series of volunteer workshops that the city of Austin and the Wildflower Center have been holding during the spring of this year.

Here is a great video all about the day created by the City of Austin:

Their goal is to train 180 citizen scientists who are willing to volunteer time during the summer monitoring season.  The next Invasive Species Identification and Monitoring workshop is coming up this weekend, June 8 and 9.  Don’t miss out because this is the last workshop for the season!

I look forward to seeing you in the hunt for invasive species! 🙂

Your friend,
Ben

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Filed under Austin Invasive Plants Management Plan, Austin Invasive Species Corps, Citizen Scientist, City of Austin, City of Austin Invaders, City of Austin Wildland Conservation Division, Giant Reed, Invaders of Texas, Invaders of Texas Citizen Science Program, Invasive Hunter, Invasive Plants, Invasive Species, Invasive Species Workshop, Jessica Strickland, Jessica Wilson, Kudzu, Lady Bird Johnson Wildflower Center, Mobile app, Texas Invaders, Texas Invasives, TX Invaders, Wildland Conservation Division

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March 20, 2013 · 8:24 pm

Invasive Species vs Texas Invaders iPhone App

For too long, invasive species have crowded out native plants and chased away citizen scientists seeking to report them with pen and paper. Now, the Texas Invaders mobile app brings new technologies to help invasive hunters protect their ecosystems in the Lone Star state and beyond.

Download the Texas Invaders app featured in the video, attend an Invaders of Texas Workshop, and get started reporting invasive species:

Other invasive species app blog posts:

Become a citizen scientist at an Invaders of Texas Workshop

If you’re in Central Texas, learn more about the City of Austin’s volunteer training for invasive species monitoring and the City of Austin Invaders satellite group, and sign up for an upcoming Invaders of Texas Workshop at the Lady Bird Johnson Wildflower Center:

  • March 23, 2013
  • May 11, 2013
  • May 18, 2013

Hope to see you at one of the workshops soon! 🙂

Your friend,
Ben

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Filed under Android, Apple, Austin Invasive Species Corps, Battles with Invasive Species, Citizen Scientist, City of Austin, City of Austin Invaders, Invasive Plants, Invasive Species, iPhone, Lady Bird Johnson Wildflower Center, Mobile app, Texas Invaders, Wildflower Center

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September 24, 2012 · 8:51 pm

Insurgent Chinese Privet Attempts Invasive Species Comeback

In October 2011, I had a chance to work with biologist Chis Warren and a group of Austin volunteers to help clear out Chinese Privet (Ligustrum sinense) from the Balcones Canyonland Preserve (BCP). I talked about our exploits last year in Titanic Struggle with Chinese Privet Ends with Their Doom.

In August 2012, I returned to the Long Canyon portion of the BCP with volunteers from the Austin Invasive Species Corps to hunt down Chinese Privet plants that were attempting a comeback, such as from the stumps that we cut down earlier or from berries that were buried underground.

It’s important to remove Chinese Privet and other invasive species from the BCP to help protect the native habitat of the endangered Golden-Cheeked Warbler.

Commander Ben and biologist Chris Warren taking a break from battling Chinese Privet.

Mr. Warren talked with me about the progress that they made since last year, and in the video from our August 2012 adventures, he describes the Chinese Privet’s distinguishing features.

For example, did you know that in Central Texas, most invasive plants have leaves and branches that are strongly opposite from each other, and many native plants have alternating leaves and branches?

Cut stump of Chinese Privet, an invasive species on the Balcones Canyonland Preserve.

In the video, you’ll also learn why invasive species have a built in advantage over natives, such as cheap, quick growth and the lack of natural predators.

Learn more about my past adventures on the Balcones Canyonlands Preserve:

The Austin Invasive Species Corps Wants You

Would you like the enjoyment…ah…satisfaction of protecting your native ecosystem and pulling an invasive plant out of the ground with a weed wrench or other nature defense weapon of your choice?

You can!

On Saturday, September 29th, join Austin Wildlands and the Austin Parks Foundation to help clear invasive species from the BCP and around Austin as part of National Public Lands Day. You can also help to restore Black-capped Vireo habitat in the BCP, help prairie seeding restoration on Water Quality Protection Lands in Northern Hays County, and many other great volunteer activities!

Update: Because of heavy rain expected on September 29, the clean up for National Public Lands Day was postponed to October 6.

Hope to see you there!

Your friend,
Ben

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Filed under Austin Invasive Species Corps, Austin Parks Foundation, Balcones Canyonlands Preserve, Barton Creek Greenbelt, BCP, BCP wildland conservation, Black-capped Vireo, Chinese Privet, City of Austin, City of Austin Wildland Conservation Division, City of Austin’s Wildland Conservation Division, Endangered Species, Golden Cheeked Warbler, Invasive Plants, Invasive Species, Ligustrum, Long Canyon, Mr. Chris Warren, National Public Lands Day 2012, Water Quality Protection Land, Weed wrench

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August 26, 2012 · 1:47 pm

Austin Invasive Species Corps Aid Golden-Cheeked Warbler

Mr. Darrell Hutchinson describes his work helping to track and protect the habitat for the Golden-Cheeked Warbler, an endangered species that breeds only in central Texas. He demonstrates how the weed wrench helps to remove invasive species that crowd out the native plants and trees in the warbler’s ecosystem.

Mr. Hutchinson is a biologist in Austin, Texas, and a member of Austin’s Invasive Species Corps. I interviewed “Corporal” Hutchinson during our invasive species volunteer day in August 2012. Learn more about my adventures with Austin’s Invasive Species Corps.

This video is part of my “Invasive Species: Secrets Revealed” series of interviews with scientists that I first started at the 2011 Texas Invasive Plant and Pest Conference.

Your friend,
Ben

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Filed under Austin Invasive Species Corps, Citizen Scientist, Endangered Species, Golden Cheeked Warbler, Invasive Species, Invasive Species: Secrets Revealed, Mr. Darrell Hutchinson, Volunteer, Weed wrench

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August 24, 2012 · 7:53 pm

Adventures with Austin’s Invasive Species Corps

Last weekend, I joined the Austin Invasive Species Corps to identify locations of Chinese Privet (Ligustrum sinense), an invasive species invading in the Long Canyon portion of the Balcones Canyonland Preserve (BCP).

I was happy to talk again with Mr. Chris Warren, a biologist with the BCP, and see the area that we helped to clear last year in my video, Titanic Struggle with Chinese Privet Ends with their Doom. (I’ll post another great video interview with him soon!)

Commander Ben and Biologist Chris Warren examine a small Chinese Privet.

It was nice to see a lot of native plants starting to grow back in the open spaces that the Chinese Privet plants used to occupy. We had pulled up a lot, but more were starting to creep back in and there were other areas too where the Ligustrum overran the native plants. (Sometimes the biologists in our group would call Chinese Privet by its scientific name, Ligustrum.)

Pulling up Chinese Privet with a weed wrench.

We used special weed wrenches to hand pull as much Chinese Privet as we could find. These heavy tools help to pull up the plant, roots and all, otherwise it could grow back from a stump.

It was a fun day filled with hunting invasives, hard work, and listening also to some wonderful presentations from many different people who are experts in the field of invasive species.

Know your invasive species: Chinese Privet

Small Chinese Privet plant (But they get much bigger!)

Chinese Privet is a woody bush with green leaves that break off easily and has lots of shoots growing out from the stalk.  It can sometimes be confused with the following native plants:

  • Elbow bush (Forestiera pubescens)
    How to tell them apart: Elbow Bush has branches that grow at 90 degree angles
  • Yaupon (Ilex vomitoria)
    How to tell them apart: The Yaupon has a tooth edge leaf instead of smooth edge leaf like the Chinese privet.

Unfortunately, Chinese Privet invaded the lower area of Long Canyon where it crowded out the native plants to create a monoculture.  Seeds from “Godzilla” sized Chinese Privet that were planted in the landscapes of homes up on a ridge, washed downhill, grew, and quickly multiplied.  This process happens over and over again when it rains and when birds carry the seed berries too.

In Asia, Chinese Privet’s native home, it stays in check because it has to contend with disease, parasites, and wildlife “eaters”.  Here in the U.S., Chinese Privet is essentially free of predators, and this allows it to spread aggressively.  Even our deer don’t like to eat it!  They prefer our native Texas plants instead.

As a non-native and pioneer species, this invasive plant can grow and spread quickly.

So why is it a problem if Chinese Privet establishes a monoculture in our area?

Know your Endangered Species: Golden cheeked warbler

Golden-Cheeked Warbler
Photo Credit: U.S. Fish and Wildlife Service

Well, it all has to do with water and the cute…and endangered…Golden-Cheeked Warbler.

The Golden-Cheeked Warbler, is a native bird and it uses the bark of the Ashe Juniper (Cedar) tree to make its nests.  These birds eat the larva of moths and butterflies that live on the Texas Live Oak trees.  Unfortunately, the Chinese Privet hogs the water and crowds out the the Cedars and the Oaks, and this eliminates the habitat and food for the Warbler.

This is especially troubling because the Golden-Cheeked Warbler is the only bird species with a breeding range confined to Texas from Palo Pinto County southwestward along the eastern and southern edge of the Edwards Plateau to Kinney County. The Balcones Canyonland Preserve is part of the Warblers’ habitat.

By clearing the Chinese Privet, we hope to create more habitat and food for the Golden-Cheeked Warbler.

Another opportunity to clear invasive species next month

Mark your calendars on Saturday, September 29, when the Austin Invasive Species Corps will get together again for a land management workday to fight against invasive plants in a new area of Long Canyon. This time, they’ll grapple with a team of two villains:

This is your chance to be an Invasive Hunter in action to battle against invasive species and help save the Golden-Cheeked Warbler!

Many thanks to Ms. Louise Liller, volunteer coordinator for the Austin Water Utility’s Wildland Conservation Division; Mr. Chris Warren; Austin biologists Mr. Darrell Hutchinson and Mr. Matt McCaw; and the valiant voluteers of the Austin Invasive Species Corp for hosting this event and making a difference for our endangered songbird and our native ecosystem.

Your friend,
Ben

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Filed under Ashe juniper, Austin Invasive Species Corps, Austin Water Utility's Wildland Conservation Division, Balcones Canyonlands Preserve, BCP, BCP wildland conservation, Chinese Privet, Edwards Plateau, Elbow bush, Endangered Species, Golden Cheeked Warbler, Ligustrum, Long Canyon, Mr. Chris Warren, Mr. Darrell Hutchinson, Mr. Matt McCaw, Ms. Louise Liller, Pioneer plant, Texas Live Oak, Wax Leaf Privet, Waxyleaf privet, Yaupon

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