From owner-dros@hgmp.mrc.ac.uk Thu Sep 28 19:43:44 2000 Return-Path: Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 110) id B0E7D17B7A; Thu, 28 Sep 2000 19:43:43 +0100 (BST) Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 6020) id 1CBB017AD8; Thu, 28 Sep 2000 19:43:42 +0100 (BST) Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 6024) id EF8B317AC4; Thu, 28 Sep 2000 18:53:04 +0100 (BST) Received: from sprettur.isnet.is (sprettur.isnet.is [193.4.58.19]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id CC24B415DD for ; Thu, 28 Sep 2000 18:53:02 +0100 (BST) Received: from mail-relay.ubc.ca (mail-relay.ubc.ca [137.82.1.2]) by sprettur.isnet.is (8.11.0/8.11.0/isnet) with ESMTP id e8SHr1C00929 for ; Thu, 28 Sep 2000 17:53:01 GMT (envelope-from news@nntp.itservices.ubc.ca) Received: from nntp.itservices.ubc.ca (nntp.itservices.ubc.ca [137.82.194.1]) by mail-relay.ubc.ca [137.82.1.2] (8.11.0/8.11.0) with ESMTP id e8SHquo29373 for ; Thu, 28 Sep 2000 10:52:57 -0700 (PDT) Received: (from news@localhost) by nntp.itservices.ubc.ca (8.9.3+Sun/8.9.3) id KAA08016 for bionet-drosophila@moderators.isc.org; Thu, 28 Sep 2000 10:52:55 -0700 (PDT) To: bionet-drosophila@moderators.isc.org From: Howard Rundle Newsgroups: bionet.drosophila Subject: CO2 in mating trials Organization: ITServices, University of British Columbia Message-ID: <39D38671.C0B1543E@zoology.ubc.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Trace: nntp.itservices.ubc.ca 970163574 8013 137.82.3.173 (28 Sep 2000 17:52:54 GMT) X-Complaints-To: abuse@interchange.ubc.ca X-Mailer: Mozilla 4.75 [en] (Win98; U) X-Accept-Language: en,pdf Date: Thu, 28 Sep 2000 19:43:42 +0100 (BST) Sender: owner-dros@hgmp.mrc.ac.uk Precedence: bulk Hello, I am preparing to conduct mate choice tests using Drosophilia pseudoobscura and am concerned about the use of CO2 to knock out the flies to setup the experiment. In talking to a number of researchers, I always get a similar response: "Oh, I never use CO2 in behavioral assays. It affects them neurologically and may change their behavior." However, nobody I have asked seems to have any data on this, one way or the other. Do anyone know of any data, published or not, relevant to the use of CO2 in mating trials? Who uses CO2, and do they have any evidence for any side effects of its use? Any information would be greatly appreciated! Cheers, Howard Rundle Dept. of Zoology University of British Columbia .