Featured Research

from universities, journals, and other organizations

Invasive leafy spurge weed: Digital cameras open new view of America's West

Date:
September 6, 2011
Source:
USDA/Agricultural Research Service
Summary:
An aerial photography survey of 38,000 wildfire-burned acres in Idaho provided what is believed to be the first evidence that the invasive leafy spurge weed is displacing seedlings of native mountain big sagebrush.

An ARS aerial survey from a light sport plane has found the first evidence that the invasive weed leafy spurge is displacing seedlings of native plants three years after Idaho's "Deep Fire Burn" wildfire.
Credit: USDA

A U.S. Department of Agriculture (USDA) aerial photography survey of 38,000 wildfire-burned acres in Idaho provided what is believed to be the first evidence that the invasive leafy spurge weed is displacing seedlings of native mountain big sagebrush.

Terry Booth, a rangeland specialist with the Agricultural Research Service (ARS) Rangeland Resources Research Unit in Cheyenne, Wyo., designed the survey using a technique he developed called Very Large Scale Aerial (VLSA) imagery. The survey of Idaho's "Deep Fire Burn" was done with two cameras at different resolutions aboard a Moyes-Bailey Dragonfly two-seat, light-sport airplane flying just over 300 feet over the area.

Booth found the high-resolution aerial photography technique, usually using three cameras, a good way to sample large areas of the western United States. When supplemented by ground-based methods, it can be used for early detection of invasive species that might threaten native plant populations.

Pesticides and biological-control insects were used to control leafy spurge before and after the wildfire. But the survey, done three years after the fire, showed that leafy spurge still managed to expand in drainage areas and up canyon slopes.

One advantage of this type of aerial survey is that it can be routinely repeated, to keep checking on whether the pesticides or insects are working.

Booth received funding and technical assistance from the U.S. Department of the Interior's Bureau of Land Management (BLM).

The survey technique was made possible by advances in digital cameras, image sensors, storage media, and image processing.

Besides Idaho, Booth has also done aerial surveys in Colorado, Nevada, New Mexico, North Dakota, South Dakota, Oklahoma, and Wyoming, looking at a variety of vegetation, including invasive and native trees, Juniper woodlands, grasslands, and shrublands -- on sites as diverse as gas pipeline rights-of-way and riverbanks.


Story Source:

The above story is based on materials provided by USDA/Agricultural Research Service. The original article was written by Don Comis. Note: Materials may be edited for content and length.


Journal Reference:

  1. D Terrance Booth, Samuel E Cox and Deena Teel. Aerial assessment of leafy spurge (Euphorbia esula L.) on Idaho’s Deep Fire Burn. Native Plants, 2011 [link]

Cite This Page:

USDA/Agricultural Research Service. "Invasive leafy spurge weed: Digital cameras open new view of America's West." ScienceDaily. ScienceDaily, 6 September 2011. <www.sciencedaily.com/releases/2011/09/110906134009.htm>.
USDA/Agricultural Research Service. (2011, September 6). Invasive leafy spurge weed: Digital cameras open new view of America's West. ScienceDaily. Retrieved October 21, 2014 from www.sciencedaily.com/releases/2011/09/110906134009.htm
USDA/Agricultural Research Service. "Invasive leafy spurge weed: Digital cameras open new view of America's West." ScienceDaily. www.sciencedaily.com/releases/2011/09/110906134009.htm (accessed October 21, 2014).

Share This



More Plants & Animals News

Tuesday, October 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

White Lion Cubs Born in Belgrade Zoo

White Lion Cubs Born in Belgrade Zoo

AFP (Oct. 20, 2014) Two white lion cubs, an extremely rare subspecies of the African lion, were recently born at Belgrade Zoo. They are being bottle fed by zoo keepers after they were rejected by their mother after birth. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
Traditional Farming Methods Gaining Ground in Mali

Traditional Farming Methods Gaining Ground in Mali

AFP (Oct. 20, 2014) He is leading a one man agricultural revolution in Mali - Oumar Diatabe uses traditional farming methods to get the most out of his land and is teaching others across the country how to do the same. Duration: 01:44 Video provided by AFP
Powered by NewsLook.com
Goliath Spider Will Give You Nightmares

Goliath Spider Will Give You Nightmares

Buzz60 (Oct. 20, 2014) An entomologist stumbled upon a South American Goliath Birdeater. With a name like that, you know it's a terrifying creepy crawler. Sean Dowling (@SeanDowlingTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Adorable Video of Baby Rhino and Lamb Friend Playing

Adorable Video of Baby Rhino and Lamb Friend Playing

Buzz60 (Oct. 20, 2014) Gertjie the Rhino and Lammie the Lamb are teaching the world about animal conservation and friendship. TC Newman (@PurpleTCNewman) has the adorable video! Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins