The Pesticide Matrix

This is a forum intended only for discussion of White Nose Syndrome.

Moderator: Moderators

Re: The Pesticide Matrix

Postby PYoungbaer » Jul 26, 2013 7:39 pm

People have speculated about a possible pesticide nexus for White Nose Syndrome since WNS was first observed back in 2007. The US Fish and Wildlife Service funded a three year study, but no evidence has ever been presented that pesticides are a factor in bats getting WNS.

Do pesticides harm bats, as they do other living things? Yes, but so far there is no tie that I'm aware of to WNS. Blog after blog and members of the public ask and wonder and offer opinion, but so far I've seen no studies to support any connection.

The only comparative study I've ever seen of various environmental toxins was done back in 2008, and has occasionally been cited by writers. This analyzed a number of Little Brown bats taken from NY sites and compared them with reference bats from Kentucky, a non-WNS region at that time. Elevated levels were found in both samples, which would imply that environmental exposure was not key to WNS. The study was inconclusive in terms of any cause and effect for WNS, but at least researchers did the study:

http://www.sciencedirect.com/science/article/pii/S0045653510005084

In addition, this rather comprehensive analytical piece cites circumstances where pesticides or other environmental toxins can or may cause immunosuppressive reactions, which "might" make a bat more susceptible to infection or other disease, but it is not a scientific study demonstrating cause and effect, rather a discussion of possibilities:

http://www.birc.org/JunJul2013.pdf

Bottom line: to date I know of no scientific study demonstrating a cause and effect relationship between pesticides and WNS. If anyone has information to the contrary, please point us to it. Thank you.
PYoungbaer
NSS Hall Of Fame Poster
 
Posts: 1358
Joined: Apr 30, 2008 4:04 pm
Location: Plainfield, VT
NSS #: 16161 CM FE
Primary Grotto Affiliation: Vermont Cavers Association
  

Re: The Pesticide Matrix

Postby peter febb » Sep 25, 2015 6:30 am

Cave-dwelling bats in North America are fighting an epic battle against the fungal disease known as white-nose syndrome, and now, they may be facing another foe—chemical contaminants. Scientists analyzed the tissues of several dead and dying bats and detected the presence of multiple chemicals including polybrominated diphenyl ethers (PBDEs), caffeine, ibuprofen, bisphenol-A, and triclosan. The new study was published in the journal Archives of Environmental Contamination and Toxicology on August 6, 2015.



[quote][/quote]http://earthsky.org/earth/bats-also-face-chemical-threats
User avatar
peter febb
Prolific Poster
 
Posts: 124
Joined: Sep 5, 2005 7:29 am
Location: the colonies
Name: Peter Febbroriello
NSS #: 20246
Primary Grotto Affiliation: CCG
  

Previous

Return to White Nose Syndrome (WNS)

Who is online

Users browsing this forum: No registered users

cron