Featured Research

from universities, journals, and other organizations

Invasion Is Backbreaking Work For Australia's Cane Toads

Date:
October 19, 2007
Source:
University of Sydney
Summary:
For the first time researchers have turned their attention onto the health effects of invasion on our old friend the cane toad, revealing that they are suffering from severe spinal arthritis brought on by the onslaught. While conducting research into toad invasion front, scientists found that the larger 'invasion front' toads were displaying a high incidence of spinal abnormalities.

Scientists in Australia found that the larger 'invasion front' cane toads were displaying a high incidence of spinal abnormalities.
Credit: Image courtesy of University of Sydney

For the first time researchers have turned their attention onto the health effects of invasion on our old friend the cane toad, revealing that they are suffering from severe spinal arthritis brought on by the onslaught.

Related Articles


While conducting research into toad invasion front, scientists from the University of Sydney and from the Department of Primary Industries found that the larger 'invasion front' toads were displaying a high incidence of spinal abnormalities.

'Bigger, longer legs increase their ability to seek out new territory but also puts pressure on the body with every hop,' said Professor Shine from the University's School of Biological Sciences. 'And with much of their energy going towards movement, less is put into their immune system, which may predispose the toads towards infection with the soil bacteria that precipitate arthritis.'

'We found that around 10 per cent of toads had arthritis in their spine,' said Professor Shine. 'Ironically, factors that have contributed to the toads' rapid spread across the continent have also rendered it susceptible to arthritis,' he said.

The researchers also observed that the process of invasion appears to have selected for larger toad body sizes on the invasion front.

'Whilst the larger body size provides advantages to the coloniser, as they can move faster, eat a wider range of prey and are less vulnerable to predators, it also increase their susceptibility to arthritis,' he said.

'The major spinal deformations of these animals testify to the great stress that invading species place upon themselves, as well as upon the ecosystem they are overrunning. An important aspect of this research is that it highlights the importance of incorporating wildlife health perspectives in any analysis of the process of biological invasion,' said Professor Shine.

Their findings are published online in the Proceeding of the National Academy of Sciences, in a paper entitled 'Invades under stress: spinal arthritis ion invasive cane toads'.


Story Source:

The above story is based on materials provided by University of Sydney. Note: Materials may be edited for content and length.


Cite This Page:

University of Sydney. "Invasion Is Backbreaking Work For Australia's Cane Toads." ScienceDaily. ScienceDaily, 19 October 2007. <www.sciencedaily.com/releases/2007/10/071016083953.htm>.
University of Sydney. (2007, October 19). Invasion Is Backbreaking Work For Australia's Cane Toads. ScienceDaily. Retrieved November 23, 2014 from www.sciencedaily.com/releases/2007/10/071016083953.htm
University of Sydney. "Invasion Is Backbreaking Work For Australia's Cane Toads." ScienceDaily. www.sciencedaily.com/releases/2007/10/071016083953.htm (accessed November 23, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Sunday, November 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola-Hit Sierra Leone's Late Cocoa Leaves Bitter Taste

Ebola-Hit Sierra Leone's Late Cocoa Leaves Bitter Taste

AFP (Nov. 23, 2014) The arable district of Kenema in Sierra Leone -- at the centre of the Ebola outbreak in May -- has been under quarantine for three months as the cocoa harvest comes in. Duration: 01:32 Video provided by AFP
Powered by NewsLook.com
Anglerfish Rarely Seen In Its Habitat Will Haunt You

Anglerfish Rarely Seen In Its Habitat Will Haunt You

Newsy (Nov. 22, 2014) For the first time Monterey Bay Aquarium recorded a video of the elusive, creepy and rarely seen anglerfish. Video provided by Newsy
Powered by NewsLook.com
Birds Around the World Take Flight

Birds Around the World Take Flight

Reuters - Light News Video Online (Nov. 22, 2014) An imperial eagle equipped with a camera spreads its wings over London. It's just one of the many birds making headlines in this week's "animal roundup". Jillian Kitchener reports. Video provided by Reuters
Powered by NewsLook.com
Could Your Genes Be The Reason You're Single?

Could Your Genes Be The Reason You're Single?

Newsy (Nov. 21, 2014) Researchers in Beijing discovered a gene called 5-HTA1, and carriers are reportedly 20 percent more likely to be single. Video provided by Newsy
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