<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Dear All,<div class=""><br class=""></div><div class="">For information.</div><div class=""><br class=""></div><div class="">Robert</div><div class=""><br class=""></div><div class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">Begin forwarded message:</div><br class="Apple-interchange-newline"><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=""><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">From: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">Sonja Knapp <<a href="mailto:sonja.knapp@ufz.de" class="">sonja.knapp@ufz.de</a>><br class=""></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=""><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">Subject: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class=""><b class="">Invitation to seminar talk by A. Datta, June 18, UFZ - Community Ecology</b><br class=""></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=""><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">Date: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">7 June 2018 at 11:13:23 CEST<br class=""></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=""><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">To: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">Sonja Knapp <<a href="mailto:sonja.knapp@ufz.de" class="">sonja.knapp@ufz.de</a>><br class=""></span></div><br class=""><div class="">
<meta http-equiv="content-type" content="text/html; charset=utf-8" class="">
<div text="#000000" bgcolor="#FFFFFF" class=""><p class="">Dear colleagues, <br class="">
<br class="">
we cordially invite you to our next department seminar, which will
take place Monday, 2018/6/18, 2:00 pm, in the lecture room at UFZ
Halle, ground floor. Arunava Datta will run a rehearsal for his
PhD defense within the frame of our department seminar. </p>
<b class="">Arunava Datta (Department of Community Ecology, Helmholtz-Centre
for Environmental Research - UFZ):<br class="">
<i class="">Analysing plant invasions across multiple scales using
Ageratina adenophora as a case study</i><br class="">
</b><p class=""><b class=""> </b>You will also find this information in the attached
invitation ("Seminar_Community_Ecology_UFZ_2018-Juni-2.pdf") and
at our Webpages: <a href="http://www.ufz.de/index.php?de=5217" class="">German
</a>/ <a href="http://www.ufz.de/index.php?en=5217" class="">English</a>.<br class="">
</p><p class="">Also, please find the abstract of the talk at the end of this
e-mail.<br class="">
</p>
On behalf of UFZ - Community Ecology,<br class="">
Sincerely,<br class="">
Sonja Knapp<br class="">
<br class="">
<br class="">
<b class="">Abstract</b><br class="">
Biological invasions across multiple continents can be compared to
unplanned large-scale transplant experiments and thus can provide a
unique window of opportunity to study many fundamental processes and
patterns in ecology. The invasive spread of the Asteraceae Ageratina
adenophora (Crofton weed) is of global concern, as it has been
recognized as a noxious invasive plant species in numerous countries
across the globe. Native to Mexico, this apomictic, triploid plant
is highly invasive in moist subtropical and sub-temperate montane
regions. Using Ageratina adenophora as a model species and employing
a suite of experimental and macroecological methods at different
spatial scales, I have attempted to answer several questions of
evolutionary and ecological significance in this thesis.<br class="">
The 1st part of the presentation is based on a reciprocal transplant
experiment carried out along an elevational gradient in in western
Himalayas. Through this experiment I have tried to investigate any
evidence of rapid evolutionary changes such as local adaptation and
clinal differentiation during the process of naturalization.
Additionally, I have attempted to understand the crucial role of
different lifecycle stages in shaping the distribution pattern along
elevational gradient. In the 2nd part of the presentation, I asked
whether the native climatic niche of Ageratina adenophora has
shifted in any of the other four invasive ranges across the globe
(the USA, the Canary Islands, Asia, and Australia) despite
evolutionary limitations due to apomictic (asexual) mode of
reproduction.<b class=""><br class="">
</b>
<pre class="moz-signature" cols="72">--
Dr. Sonja Knapp
Department Biozönoseforschung
Department of Community Ecology
Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
Helmholtz Centre for Environmental Research - UFZ
Theodor-Lieser-Str. 4 / 06120 Halle (Saale) / Germany
phone +49 345 558 5308 / Fax +49 345 558 5329
<a class="moz-txt-link-abbreviated" href="mailto:sonja.knapp@ufz.de">sonja.knapp@ufz.de</a> / <a class="moz-txt-link-freetext" href="http://www.ufz.de/">http://www.ufz.de</a>
Sitz der Gesellschaft: Leipzig
Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
Administrative Geschäftsführerin: Prof. Dr. Heike Graßmann</pre>
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