From asalzberg@nyc.rr.com Wed Dec 1 15:18:28 2004 Received: from mxe2.u.washington.edu (mxe2.u.washington.edu [140.142.33.14]) by lists.u.washington.edu (8.13.1+UW04.08/8.13.1+UW04.08) with ESMTP id iB1NIReX057424 for ; Wed, 1 Dec 2004 15:18:27 -0800 Received: from ms-smtp-02.rdc-nyc.rr.com (ms-smtp-02-smtplb.rdc-nyc.rr.com [24.29.109.6]) by mxe2.u.washington.edu (8.13.1+UW04.08/8.13.1+UW04.09) with ESMTP id iB1NIQ8E003128 for ; Wed, 1 Dec 2004 15:18:26 -0800 Received: from herps (24-90-223-141.nyc.rr.com [24.90.223.141]) by ms-smtp-02.rdc-nyc.rr.com (8.12.10/8.12.7) with SMTP id iB1NHJBM029471; Wed, 1 Dec 2004 18:17:20 -0500 (EST) Message-ID: <01a101c4d7fb$eacbe290$8ddf5a18@herps> From: "Allen Salzberg" To: , , , "Conservation Biology Listserv" , Cc: "Herp Haven" , "HerpNet" , , "Gordon Rhodda" , , Subject: Impact Of The Introduction Of The Red-Eared Slider (Trachemys Scripta Elegans) On Survival Rates Of The European Pond Turtle (Emys Orbicularis) Date: Wed, 1 Dec 2004 18:17:24 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_019E_01C4D7D2.01AC0050" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Virus-Scanned: Symantec AntiVirus Scan Engine X-Uwash-Spam: Gauge=IIIIIII, Probability=7%, Report='__CT 0, __CTYPE_HAS_BOUNDARY 0, __CTYPE_MULTIPART 0, __CTYPE_MULTIPART_ALT 0, __HAS_MSGID 0, __HAS_MSMAIL_PRI 0, __HAS_X_MAILER 0, __HAS_X_PRIORITY 0, __MIME_HTML 0, __MIME_VERSION 0, __SANE_MSGID 0, __TAG_EXISTS_HTML 0' This is a multi-part message in MIME format. ------=_NextPart_000_019E_01C4D7D2.01AC0050 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Impact Of The Introduction Of The Red-Eared Slider (Trachemys Scripta = Elegans) On Survival Rates Of The European Pond Turtle (Emys = Orbicularis) Biodiversity and Conservation 13 (13): 2511-2518, December 2004=20 A. Cadi=20 UMR CNRS 5023 Ecologie des Hydrosyst=E8mes Fluviaux, Universit=E9 Claude = Bernard Lyon 1, F-69622 Villeurbanne Cedex, France; Fondation Pierre = V=E9rots, F-01350 Saint-Jean-de-Thurigneux, France=20 P. Joly=20 UMR CNRS 5023 Ecologie des Hydrosyst=E8mes Fluviaux, Universit=E9 Claude = Bernard Lyon 1, F-69622 Villeurbanne Cedex, France; Fondation Pierre = V=E9rots, F-01350 Saint-Jean-de-Thurigneux, France ((e-mail: = pjoly@biomserv.univ-lyon1.fr))=20 =20 Abstract=20 Recent massive imports of slider turtles, (Trachemys scripta elegans) = into Europe as pets have induced frequent release of these exotic = turtles in natural habitats. As a consequence, T. s. elegans is now = widely distributed in most wetlands. Moreover, reproduction of this = species has been repeatedly observed in Europe under Mediterranean = climatic conditions. In this context, we studied competition between = this introduced species and the European pond turtle (Emys orbicularis) = under experimental conditions. We compared weight variation and survival = between control groups and mixed groups during three years of = monitoring. We found both weight loss and high mortality in E. = orbicularis of the mixed groups. This study argues for applying a = precaution principle and stopping slider turtle introductions in all = wetlands in Europe. =20 Keywords=20 Emys orbicularis, Introduction, Survivor rate, Testudines, Trachemys = scripta elegans ------=_NextPart_000_019E_01C4D7D2.01AC0050 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Impact Of The Introduction Of The Red-Eared Slider (Trachemys = Scripta=20 Elegans) On Survival Rates Of The European Pond Turtle (Emys=20 Orbicularis)

Biodiversity and Conservation

13 (13): 2511-2518, December 2004

A. Cadi

UMR CNRS 5023 Ecologie des Hydrosyst=E8mes Fluviaux, = Universit=E9 Claude=20 Bernard Lyon 1, F-69622 Villeurbanne Cedex, France; Fondation Pierre = V=E9rots,=20 F-01350 Saint-Jean-de-Thurigneux, France

P. Joly

UMR CNRS 5023 Ecologie des Hydrosyst=E8mes Fluviaux, = Universit=E9 Claude=20 Bernard Lyon 1, F-69622 Villeurbanne Cedex, France; Fondation Pierre = V=E9rots,=20 F-01350 Saint-Jean-de-Thurigneux, France ((e-mail:=20 pjoly@biomserv.univ-lyon1.fr))

Abstract

Recent massive imports of slider turtles, (Trachemys scripta = elegans)=20 into Europe as pets have induced frequent release of these exotic = turtles in=20 natural habitats. As a consequence, T. s. elegans is now widely = distributed in=20 most wetlands. Moreover, reproduction of this species has been = repeatedly=20 observed in Europe under Mediterranean climatic conditions. In this = context, we=20 studied competition between this introduced species and the European = pond turtle=20 (Emys orbicularis) under experimental conditions. We compared weight = variation=20 and survival between control groups and mixed groups during three years = of=20 monitoring. We found both weight loss and high mortality in E. = orbicularis of=20 the mixed groups. This study argues for applying a precaution principle = and=20 stopping slider turtle introductions in all wetlands in = Europe.

Keywords

Emys=20 orbicularis, Introduction, Survivor rate, Testudines, Trachemys scripta=20 elegans

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