Gulf News has an interesting article about invasive species in Dubai. Scientists from the Wadi Fish Project have been finding everything from American red-eared slider turtlesre (Trachemys scripta elegans), abandoned as unwanted pets, to tilapia, stocked to provide fishing opportunities. An intriguing look at introduced species issues in a country that gets little environmental press coverage here in the USA. This older article at UAE Interact mentions additional non-native species present in the United Arab Emirates, including parakeets, mynahs and crows, and the Floridian snail Polygyra cereolus.
Tuesday, May 27, 2008
Monday, May 26, 2008
Lessoning Loosestrife
From a meeting I recently attended comes news that Mass Audubon has developed "Lessoning Loosestrife," a standards-based curriculum that deals specifically with purple loosestrife (Lythrum salicaria) and its impact on wetlands. They have even released the lessons online so that others can download the files for free. Topics range from wetland monitoring to the use of beetles as a biological control for the loosestrife. The project was funded by a grant from the National Fish and Wildlife Foundation, so it's really nice to see the results shared with others who might be interested in incorporating this into their own curricula.
Bonus points to Mass Audubon for using a punny title, making my job here so much easier ;-).
Thursday, May 22, 2008
The Trouble With Truffles
A chinese truffle is threatening native truffles in Europe, according to this article from BBC News. The discovery that the Chinese black truffle (Tuber indicum) had established in the wild in Italy seems to have come as no surprise to scientists, who are at once disheartened and concerned about the potential impact to the prized native Perigord white truffle (Tuber melanosporum). You can read the full story in a letter in the journal New Phytologist (hooray for free content!). Also, keep in mind that this is more than just an ecological issue - truffles are an agricultural product that fetches a high price, and Europeans are none too happy about even allowing black truffles to be imported from China.
Thanks to biosparite for sending in a link to the article, and for suggesting the title...really, if I could just get you guys to actually write the posts for me too, I'd be all set ;-).
Sunday, May 18, 2008
Circuit City
Reports at the Times Online (and elsewhere) are indicating that the state of Texas is under attack from electronics-eating ants. The "crazy rasberry ant" (no, that's not a typo, they're named after the exterminator who brought them to attention), which for now has been identified taxonomically only as "Paratrechina sp. nr. pubens," was discovered in Texas back in 2002. Since then, the ant has been a nuisance for homeowners and businesses, invading electrical equipment and sometimes causing it to short out. No one knows exactly why the ants are attracted to electrical equipment, but they are not the only species known to be. As the article notes, circuitry is not the crazy rasberry ant's only sustenance - they also eat everything from lady beetles to baby birds, and even fire ants.
These ants do sound pretty crazy, but not as crazy as the people photographed with the ants running up their arms. That's just INSANE.
Thursday, May 15, 2008
But Does It Have A Popcorn Button?
An article in New Scientist details an interesting technique for dealing with ballast invaders: zap them with microwaves. Researchers at Louisiana State University have developed industrial-strength microwave generators that can heat ballast water to 55'C (131'F), killing potentially invasive aquatic organisms (and everything else as well!). Now they're working to find a way to integrate the technology into ships, providing a relatively cheap and effective method of treating ballast water. If you want to learn more, check out the original research, published in last month's issue of Environmental Science & Technology (bonus points to them for providing the entire article free of charge!).
Monday, May 12, 2008
Postal Service
In case you are wondering why the posts aren't quite so "daily" here at the ISW, it is because I have a new job that came with a new website and I have been blogging a bit over there. The Massachusetts Introduced Pests Outreach Project is, as you can guess, focused on the state of Massachusetts, so the flavor of the posting there is decidedly New England-centric. Feel free to stop by.
Sunday, May 11, 2008
Fun With Weeding
In my yard today...
- Pulled: 20 Norway maple seedlings (Acer platanoides)
- Cut: 7 Norway maple saplings/suckers (note to self: get Weed Wrench!)
- Severed: 5 Asiatic bittersweet vines (Celastrus orbiculatus)
- Spared (from said bittersweet vines): 2 cherries, 2 maples, 2 dogwoods, 1 sassafras
- Eyed with disdain: blackberry lily (Belamcanda chinensis) growing in my compost pile