<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri","sans-serif";}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Tina—the 18S data should pick-up fungi—correct?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> cvesbach@gmail.com [mailto:cvesbach@gmail.com] <b>On Behalf Of </b>Cristina Vesbach<br><b>Sent:</b> Wednesday, September 16, 2015 11:52 AM<br><b>To:</b> Priscu, John<br><b>Cc:</b> John Barrett; mcm-pi@lists.lternet.edu<br><b>Subject:</b> Re: [LTER-mcm-pi] 5 min gem for the week<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>I too missed yesterday's call, sorry, I forgot to put the new time in my calendar. I think in the summer, physical disruption (streamflow) plays a big part in maintaining diversity, while micro scale gradients in nutrients promote diversity. Can we test this by comparing bacterioplankton dynamics in summer vs. winter? Or above and below the chemocline? The limno samples were loaded onto the sequencer an hour ago, so we can look at these next week (I think we have 3 summers for 3 lakes on that run, 16S only, but 18S is prepped and in the queue). Finally, viruses should play a role too, but have no data on this. Samples are prepped, but my student working on this bailed. My tech and I are prepping the viriome libraries next week (this is the last step before sequencing).<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On Wed, Sep 16, 2015 at 10:32 AM, Priscu, John <<a href="mailto:jpriscu@montana.edu" target="_blank">jpriscu@montana.edu</a>> wrote:<o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>So where do the MCM soils, streams and lakes fit into this paradigm?</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><img border=0 width=387 height=699 id="_x0000_i1025" src="cid:image001.jpg@01D0F076.6FC1BF80"><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> John Barrett [mailto:<a href="mailto:jebarre@vt.edu" target="_blank">jebarre@vt.edu</a>] <br><b>Sent:</b> Wednesday, September 16, 2015 10:22 AM<br><b>To:</b> Priscu, John<br><b>Cc:</b> <a href="mailto:mcm-pi@lists.lternet.edu" target="_blank">mcm-pi@lists.lternet.edu</a><br><b>Subject:</b> Re: [LTER-mcm-pi] 5 min gem for the week</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Wow, that's uncanny John. I was just using the paradox of the plankton in discussion with my grad students. <o:p></o:p></p><div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>My guess would be viruses to explain diversity in lakes. They are otherwise too stable - unless we can invoke flood years as a physical disruption that offsets competative exclusion. Are there data in the cool years to show decreases in diversity? That would be a test of whether floods acted to upset equilibrium in species composition.<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div></div></div></div><div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>On Wed, Sep 16, 2015 at 12:15 PM, Priscu, John <<a href="mailto:jpriscu@montana.edu" target="_blank">jpriscu@montana.edu</a>> wrote:<o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Sorry that I missed the call yesterday—didn’t get home from Europe until midnight and was not well organized—in other words, I forgot about the call.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Here would be my gem for the week: So, where does the MCM fit into Terborgh’s scheme? We have few predators (I think we do—at least for the lakes), yet biodiversity is relatively high. What replaces predators in our system—Viruses? physical disruption? Maybe physical disruption occurs faster than competitive exclusion, maintaining high diversity? This kind of contemporaneous disequilibrium has been proposed by Richerson et al. 1970 (attached) [Richerson was the chair of my grad committee].<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>JP<o:p></o:p></p></div></div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><br>_______________________________________________<br>Long Term Ecological Research Network<br>mcm-pi mailing list<br><a href="mailto:mcm-pi@lternet.edu" target="_blank">mcm-pi@lternet.edu</a><o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><br><br clear=all><o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>-- <o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>J. E. Barrett, Ph.D.<br>Associate Professor<br>2125 Derring Hall<br>Department of Biological Sciences<br>Virginia Tech<br>Blacksburg VA, 24061<o:p></o:p></p></div></div></div></div></div></div></div><p class=MsoNormal style='margin-bottom:12.0pt'><br>_______________________________________________<br>Long Term Ecological Research Network<br>mcm-pi mailing list<br><a href="mailto:mcm-pi@lternet.edu">mcm-pi@lternet.edu</a><o:p></o:p></p></div><p class=MsoNormal><br><br clear=all><o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal>-- <o:p></o:p></p><div><p class=MsoNormal>Cristina Takacs-Vesbach<br>Assoc. Professor<br>UNM Biology<br>MSC03 2020<br>Albuquerque, NM 87131<br><br>505-277-3418/3316<br>Fax: 505-277-0304<br><br>Fed Ex packages<br>UNM Biology<br>133 Castetter Hall<br>Albuquerque, NM<br>87131<o:p></o:p></p></div></div></div></body></html>