<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>32</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Darling, Joshua P.</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Diane M. McKnight</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Controls on microbial mat coverage and diatom species turnover in Antarctic desert streams: A transplant experiment</style></title><secondary-title><style face="normal" font="default" size="100%">Department of Environmental Studies</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Antarctica</style></keyword><keyword><style  face="normal" font="default" size="100%">diatom</style></keyword><keyword><style  face="normal" font="default" size="100%">microbial mat</style></keyword><keyword><style  face="normal" font="default" size="100%">streams</style></keyword><keyword><style  face="normal" font="default" size="100%">transplant</style></keyword><keyword><style  face="normal" font="default" size="100%">turnover</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2021</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.proquest.com/docview/2634590982</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">University of Colorado Boulder</style></publisher><pub-location><style face="normal" font="default" size="100%">Boulder, CO</style></pub-location><volume><style face="normal" font="default" size="100%">M.S.</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;This thesis evaluates how polar desert streams regulate benthic microbial mat coverage, chlorophyll-a biomass, and diatom species composition. Microbial mats growing on rocks (eplithon) and on sandy substrate (epipelon) were reciprocally transplanted among four glaciers meltwater streams and monitored through time. The selected study streams were Green Creek, Bowles Creek, Delta Stream, Von Guerard Stream in the Lake Fryxell Basin in the McMurdo Dry Valleys, Antarctica. These streams vary in length, streamflow intermittency, and diatom community composition of microbial mats. Results demonstrate that streams strongly control mat biomass (coverage and chlorophyll-a) differently for epilithon and epipelon. However, diatom species composition did not vary between these growth habitats but instead varied by stream, suggesting adaptive niche separation related to environmental conditions. Diatom species composition of transplants in Green Creek became dissimilar from their initial stream communities suggesting downstream dispersal and within stream connectivity regulates community assembly. This experiment confirms that environmental characteristics and intra-stream dispersal processes exert strong control over maintaining microbial mat coverage, biomass accrual, and diatom species composition.&lt;/p&gt;</style></abstract><work-type><style face="normal" font="default" size="100%">masters</style></work-type></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dornelas, Maria</style></author><author><style face="normal" font="default" size="100%">Antão, Laura H.</style></author><author><style face="normal" font="default" size="100%">Moyes, Faye</style></author><author><style face="normal" font="default" size="100%">Bates, Amanda E.</style></author><author><style face="normal" font="default" size="100%">Magurran, Anne E.</style></author><author><style face="normal" font="default" size="100%">Adam, Dušan</style></author><author><style face="normal" font="default" size="100%">Akhmetzhanova, Asem A.</style></author><author><style face="normal" font="default" size="100%">Appeltans, Ward</style></author><author><style face="normal" font="default" size="100%">Arcos, José Manuel</style></author><author><style face="normal" font="default" size="100%">Arnold, Haley</style></author><author><style face="normal" font="default" size="100%">Ayyappan, Narayanan</style></author><author><style face="normal" font="default" size="100%">Badihi, Gal</style></author><author><style face="normal" font="default" size="100%">Baird, Andrew H.</style></author><author><style face="normal" font="default" size="100%">Barbosa, Miguel</style></author><author><style face="normal" font="default" size="100%">Barreto, Tiago Egydio</style></author><author><style face="normal" font="default" size="100%">Bässler, Claus</style></author><author><style face="normal" font="default" size="100%">Bellgrove, Alecia</style></author><author><style face="normal" font="default" size="100%">Belmaker, Jonathan</style></author><author><style face="normal" font="default" size="100%">Benedetti-Cecchi, Lisandro</style></author><author><style face="normal" font="default" size="100%">Bett, Brian J.</style></author><author><style face="normal" font="default" size="100%">Bjorkman, Anne D.</style></author><author><style face="normal" font="default" size="100%">Błażewicz, Magdalena</style></author><author><style face="normal" font="default" size="100%">Blowes, Shane A.</style></author><author><style face="normal" font="default" size="100%">Bloch, Christopher P.</style></author><author><style face="normal" font="default" size="100%">Bonebrake, Timothy C.</style></author><author><style face="normal" font="default" size="100%">Boyd, Susan</style></author><author><style face="normal" font="default" size="100%">Bradford, Matt</style></author><author><style face="normal" font="default" size="100%">Brooks, Andrew J.</style></author><author><style face="normal" font="default" size="100%">Brown, James H.</style></author><author><style face="normal" font="default" size="100%">Bruelheide, Helge</style></author><author><style face="normal" font="default" size="100%">Budy, Phaedra</style></author><author><style face="normal" font="default" size="100%">Carvalho, Fernando</style></author><author><style face="normal" font="default" size="100%">Castañeda-Moya, Edward</style></author><author><style face="normal" font="default" size="100%">Chen, Chaolun Allen</style></author><author><style face="normal" font="default" size="100%">Chamblee, John F.</style></author><author><style face="normal" font="default" size="100%">Chase, Tory J.</style></author><author><style face="normal" font="default" size="100%">Siegwart Collier, Laura</style></author><author><style face="normal" font="default" size="100%">Collinge, Sharon K.</style></author><author><style face="normal" font="default" size="100%">Condit, Richard</style></author><author><style face="normal" font="default" size="100%">Cooper, Elisabeth J.</style></author><author><style face="normal" font="default" size="100%">Cornelissen, J. Hans C.</style></author><author><style face="normal" font="default" size="100%">Cotano, Unai</style></author><author><style face="normal" font="default" size="100%">Kyle Crow, Shannan</style></author><author><style face="normal" font="default" size="100%">Damasceno, Gabriella</style></author><author><style face="normal" font="default" size="100%">Davies, Claire H.</style></author><author><style face="normal" font="default" size="100%">Davis, Robert A.</style></author><author><style face="normal" font="default" size="100%">Day, Frank P.</style></author><author><style face="normal" font="default" size="100%">Degraer, Steven</style></author><author><style face="normal" font="default" size="100%">Doherty, Tim S.</style></author><author><style face="normal" font="default" size="100%">Dunn, Timothy E.</style></author><author><style face="normal" font="default" size="100%">Durigan, Giselda</style></author><author><style face="normal" font="default" size="100%">Duffy, J. Emmett</style></author><author><style face="normal" font="default" size="100%">Edelist, Dor</style></author><author><style face="normal" font="default" size="100%">Edgar, Graham J.</style></author><author><style face="normal" font="default" size="100%">Elahi, Robin</style></author><author><style face="normal" font="default" size="100%">Elmendorf, Sarah C.</style></author><author><style face="normal" font="default" size="100%">Enemar, Anders</style></author><author><style face="normal" font="default" size="100%">Ernest, S. K. Morgan</style></author><author><style face="normal" font="default" size="100%">Escribano, Rubén</style></author><author><style face="normal" font="default" size="100%">Estiarte, Marc</style></author><author><style face="normal" font="default" size="100%">Evans, Brian S.</style></author><author><style face="normal" font="default" size="100%">Fan, Tung-Yung</style></author><author><style face="normal" font="default" size="100%">Turini Farah, Fabiano</style></author><author><style face="normal" font="default" size="100%">Loureiro Fernandes, Luiz</style></author><author><style face="normal" font="default" size="100%">Farneda, Fábio Z.</style></author><author><style face="normal" font="default" size="100%">Fidelis, Alessandra</style></author><author><style face="normal" font="default" size="100%">Fitt, Robert</style></author><author><style face="normal" font="default" size="100%">Fosaa, Anna Maria</style></author><author><style face="normal" font="default" size="100%">Daher Correa Franco, Geraldo Antonio</style></author><author><style face="normal" font="default" size="100%">Frank, Grace E.</style></author><author><style face="normal" font="default" size="100%">Fraser, William R.</style></author><author><style face="normal" font="default" size="100%">García, Hernando</style></author><author><style face="normal" font="default" size="100%">Cazzolla Gatti, Roberto</style></author><author><style face="normal" font="default" size="100%">Givan, Or</style></author><author><style face="normal" font="default" size="100%">Gorgone-Barbosa, Elizabeth</style></author><author><style face="normal" font="default" size="100%">Gould, William A.</style></author><author><style face="normal" font="default" size="100%">Gries, Corinna</style></author><author><style face="normal" font="default" size="100%">Grossman, Gary D.</style></author><author><style face="normal" font="default" size="100%">Gutierréz, Julio R.</style></author><author><style face="normal" font="default" size="100%">Hale, Stephen</style></author><author><style face="normal" font="default" size="100%">Harmon, Mark E.</style></author><author><style face="normal" font="default" size="100%">Harte, John</style></author><author><style face="normal" font="default" size="100%">Haskins, Gary</style></author><author><style face="normal" font="default" size="100%">Henshaw, Donald L.</style></author><author><style face="normal" font="default" size="100%">Hermanutz, Luise</style></author><author><style face="normal" font="default" size="100%">Hidalgo, Pamela</style></author><author><style face="normal" font="default" size="100%">Higuchi, Pedro</style></author><author><style face="normal" font="default" size="100%">Hoey, Andrew</style></author><author><style face="normal" font="default" size="100%">Van Hoey, Gert</style></author><author><style face="normal" font="default" size="100%">Hofgaard, Annika</style></author><author><style face="normal" font="default" size="100%">Holeck, Kristen</style></author><author><style face="normal" font="default" size="100%">Hollister, Robert D.</style></author><author><style face="normal" font="default" size="100%">Holmes, Richard</style></author><author><style face="normal" font="default" size="100%">Hoogenboom, Mia</style></author><author><style face="normal" font="default" size="100%">Hsieh, Chih-hao</style></author><author><style face="normal" font="default" size="100%">Hubbell, Stephen P.</style></author><author><style face="normal" font="default" size="100%">Huettmann, Falk</style></author><author><style face="normal" font="default" size="100%">Huffard, Christine L.</style></author><author><style face="normal" font="default" size="100%">Hurlbert, Allen H.</style></author><author><style face="normal" font="default" size="100%">Macedo Ivanauskas, Natália</style></author><author><style face="normal" font="default" size="100%">Janík, David</style></author><author><style face="normal" font="default" size="100%">Jandt, Ute</style></author><author><style face="normal" font="default" size="100%">Jażdżewska, Anna</style></author><author><style face="normal" font="default" size="100%">Johannessen, Tore</style></author><author><style face="normal" font="default" size="100%">Johnstone, Jill</style></author><author><style face="normal" font="default" size="100%">Jones, Julia</style></author><author><style face="normal" font="default" size="100%">Jones, Faith A. M.</style></author><author><style face="normal" font="default" size="100%">Kang, Jungwon</style></author><author><style face="normal" font="default" size="100%">Kartawijaya, Tasrif</style></author><author><style face="normal" font="default" size="100%">Keeley, Erin C.</style></author><author><style face="normal" font="default" size="100%">Kelt, Douglas A.</style></author><author><style face="normal" font="default" size="100%">Kinnear, Rebecca</style></author><author><style face="normal" font="default" size="100%">Klanderud, Kari</style></author><author><style face="normal" font="default" size="100%">Knutsen, Halvor</style></author><author><style face="normal" font="default" size="100%">Koenig, Christopher C.</style></author><author><style face="normal" font="default" size="100%">Kortz, Alessandra R.</style></author><author><style face="normal" font="default" size="100%">Král, Kamil</style></author><author><style face="normal" font="default" size="100%">Kuhnz, Linda A.</style></author><author><style face="normal" font="default" size="100%">Kuo, Chao-Yang</style></author><author><style face="normal" font="default" size="100%">Kushner, David J.</style></author><author><style face="normal" font="default" size="100%">Laguionie-Marchais, Claire</style></author><author><style face="normal" font="default" size="100%">Lancaster, Lesley T.</style></author><author><style face="normal" font="default" size="100%">Min Lee, Cheol</style></author><author><style face="normal" font="default" size="100%">Lefcheck, Jonathan S.</style></author><author><style face="normal" font="default" size="100%">Lévesque, Esther</style></author><author><style face="normal" font="default" size="100%">Lightfoot, David</style></author><author><style face="normal" font="default" size="100%">Lloret, Francisco</style></author><author><style face="normal" font="default" size="100%">Lloyd, John D.</style></author><author><style face="normal" font="default" size="100%">López-Baucells, Adrià</style></author><author><style face="normal" font="default" size="100%">Louzao, Maite</style></author><author><style face="normal" font="default" size="100%">Madin, Joshua S.</style></author><author><style face="normal" font="default" size="100%">Magnússon, Borgþór</style></author><author><style face="normal" font="default" size="100%">Malamud, Shahar</style></author><author><style face="normal" font="default" size="100%">Matthews, Iain</style></author><author><style face="normal" font="default" size="100%">McFarland, Kent P.</style></author><author><style face="normal" font="default" size="100%">McGill, Brian</style></author><author><style face="normal" font="default" size="100%">Diane M. McKnight</style></author><author><style face="normal" font="default" size="100%">McLarney, William O.</style></author><author><style face="normal" font="default" size="100%">Meador, Jason</style></author><author><style face="normal" font="default" size="100%">Meserve, Peter L.</style></author><author><style face="normal" font="default" size="100%">Metcalfe, Daniel J.</style></author><author><style face="normal" font="default" size="100%">Meyer, Christoph F. J.</style></author><author><style face="normal" font="default" size="100%">Michelsen, Anders</style></author><author><style face="normal" font="default" size="100%">Milchakova, Nataliya</style></author><author><style face="normal" font="default" size="100%">Moens, Tom</style></author><author><style face="normal" font="default" size="100%">Moland, Even</style></author><author><style face="normal" font="default" size="100%">Moore, Jon</style></author><author><style face="normal" font="default" size="100%">Mathias Moreira, Carolina</style></author><author><style face="normal" font="default" size="100%">Müller, Jörg</style></author><author><style face="normal" font="default" size="100%">Murphy, Grace</style></author><author><style face="normal" font="default" size="100%">Myers-Smith, Isla H.</style></author><author><style face="normal" font="default" size="100%">Myster, Randall W.</style></author><author><style face="normal" font="default" size="100%">Naumov, Andrew</style></author><author><style face="normal" font="default" size="100%">Neat, Francis</style></author><author><style face="normal" font="default" size="100%">Nelson, James A.</style></author><author><style face="normal" font="default" size="100%">Paul Nelson, Michael</style></author><author><style face="normal" font="default" size="100%">Newton, Stephen F.</style></author><author><style face="normal" font="default" size="100%">Norden, Natalia</style></author><author><style face="normal" font="default" size="100%">Oliver, Jeffrey C.</style></author><author><style face="normal" font="default" size="100%">Olsen, Esben M.</style></author><author><style face="normal" font="default" size="100%">Onipchenko, Vladimir G.</style></author><author><style face="normal" font="default" size="100%">Pabis, Krzysztof</style></author><author><style face="normal" font="default" size="100%">Pabst, Robert J.</style></author><author><style face="normal" font="default" size="100%">Paquette, Alain</style></author><author><style face="normal" font="default" size="100%">Pardede, Sinta</style></author><author><style face="normal" font="default" size="100%">Paterson, David M.</style></author><author><style face="normal" font="default" size="100%">Pélissier, Raphaël</style></author><author><style face="normal" font="default" size="100%">Peñuelas, Josep</style></author><author><style face="normal" font="default" size="100%">Pérez-Matus, Alejandro</style></author><author><style face="normal" font="default" size="100%">Pizarro, Oscar</style></author><author><style face="normal" font="default" size="100%">Pomati, Francesco</style></author><author><style face="normal" font="default" size="100%">Post, Eric</style></author><author><style face="normal" font="default" size="100%">Prins, Herbert H. T.</style></author><author><style face="normal" font="default" size="100%">John C. Priscu</style></author><author><style face="normal" font="default" size="100%">Provoost, Pieter</style></author><author><style face="normal" font="default" size="100%">Prudic, Kathleen L.</style></author><author><style face="normal" font="default" size="100%">Pulliainen, Erkki</style></author><author><style face="normal" font="default" size="100%">Ramesh, B. R.</style></author><author><style face="normal" font="default" size="100%">Mendivil Ramos, Olivia</style></author><author><style face="normal" font="default" size="100%">Rassweiler, Andrew</style></author><author><style face="normal" font="default" size="100%">Rebelo, Jose Eduardo</style></author><author><style face="normal" font="default" size="100%">Reed, Daniel C.</style></author><author><style face="normal" font="default" size="100%">Reich, Peter B.</style></author><author><style face="normal" font="default" size="100%">Remillard, Suzanne M.</style></author><author><style face="normal" font="default" size="100%">Richardson, Anthony J.</style></author><author><style face="normal" font="default" size="100%">Richardson, J. Paul</style></author><author><style face="normal" font="default" size="100%">van Rijn, Itai</style></author><author><style face="normal" font="default" size="100%">Rocha, Ricardo</style></author><author><style face="normal" font="default" size="100%">Rivera-Monroy, Victor H.</style></author><author><style face="normal" font="default" size="100%">Rixen, Christian</style></author><author><style face="normal" font="default" size="100%">Robinson, Kevin P.</style></author><author><style face="normal" font="default" size="100%">Ribeiro Rodrigues, Ricardo</style></author><author><style face="normal" font="default" size="100%">de Cerqueira Rossa-Feres, Denise</style></author><author><style face="normal" font="default" size="100%">Rudstam, Lars</style></author><author><style face="normal" font="default" size="100%">Ruhl, Henry</style></author><author><style face="normal" font="default" size="100%">Ruz, Catalina S.</style></author><author><style face="normal" font="default" size="100%">Sampaio, Erica M.</style></author><author><style face="normal" font="default" size="100%">Rybicki, Nancy</style></author><author><style face="normal" font="default" size="100%">Rypel, Andrew</style></author><author><style face="normal" font="default" size="100%">Sal, Sofia</style></author><author><style face="normal" font="default" size="100%">Salgado, Beatriz</style></author><author><style face="normal" font="default" size="100%">Santos, Flavio A. M.</style></author><author><style face="normal" font="default" size="100%">Savassi-Coutinho, Ana Paula</style></author><author><style face="normal" font="default" size="100%">Scanga, Sara</style></author><author><style face="normal" font="default" size="100%">Schmidt, Jochen</style></author><author><style face="normal" font="default" size="100%">Schooley, Robert</style></author><author><style face="normal" font="default" size="100%">Setiawan, Fakhrizal</style></author><author><style face="normal" font="default" size="100%">Shao, Kwang-Tsao</style></author><author><style face="normal" font="default" size="100%">Shaver, Gaius R.</style></author><author><style face="normal" font="default" size="100%">Sherman, Sally</style></author><author><style face="normal" font="default" size="100%">Sherry, Thomas W.</style></author><author><style face="normal" font="default" size="100%">Siciński, Jacek</style></author><author><style face="normal" font="default" size="100%">Sievers, Caya</style></author><author><style face="normal" font="default" size="100%">da Silva, Ana Carolina</style></author><author><style face="normal" font="default" size="100%">Rodrigues da Silva, Fernando</style></author><author><style face="normal" font="default" size="100%">Silveira, Fabio L.</style></author><author><style face="normal" font="default" size="100%">Slingsby, Jasper</style></author><author><style face="normal" font="default" size="100%">Smart, Tracey</style></author><author><style face="normal" font="default" size="100%">Snell, Sara J.</style></author><author><style face="normal" font="default" size="100%">Soudzilovskaia, Nadejda A.</style></author><author><style face="normal" font="default" size="100%">Souza, Gabriel B. G.</style></author><author><style face="normal" font="default" size="100%">Maluf Souza, Flaviana</style></author><author><style face="normal" font="default" size="100%">Castro Souza, Vinícius</style></author><author><style face="normal" font="default" size="100%">Stallings, Christopher D.</style></author><author><style face="normal" font="default" size="100%">Stanforth, Rowan</style></author><author><style face="normal" font="default" size="100%">Stanley, Emily H.</style></author><author><style face="normal" font="default" size="100%">Mauro Sterza, José</style></author><author><style face="normal" font="default" size="100%">Stevens, Maarten</style></author><author><style face="normal" font="default" size="100%">Stuart-Smith, Rick</style></author><author><style face="normal" font="default" size="100%">Rondon Suarez, Yzel</style></author><author><style face="normal" font="default" size="100%">Supp, Sarah</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">BioTIME: A database of biodiversity time series for the Anthropocene</style></title><secondary-title><style face="normal" font="default" size="100%">Global Ecology and Biogeography</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">biodiversity</style></keyword><keyword><style  face="normal" font="default" size="100%">global</style></keyword><keyword><style  face="normal" font="default" size="100%">spatial</style></keyword><keyword><style  face="normal" font="default" size="100%">species richness</style></keyword><keyword><style  face="normal" font="default" size="100%">temporal</style></keyword><keyword><style  face="normal" font="default" size="100%">turnover</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">07/2018</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://onlinelibrary.wiley.com/doi/abs/10.1111/geb.12729</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">27</style></volume><pages><style face="normal" font="default" size="100%">760-786</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&lt;strong&gt;Motivation: &lt;/strong&gt;The BioTIME database contains raw data on species identities and abundances in ecological assemblages through time. These data enable users to calculate temporal trends in biodiversity within and amongst assemblages using a broad range of metrics. BioTIME is being developed as a community-led open-source database of biodiversity time series. Our goal is to accelerate and facilitate quantitative analysis of temporal patterns of biodiversity in the Anthropocene.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Main types of variables included: &lt;/strong&gt;The database contains 8,777,413 species abundance records, from assemblages consistently sampled for a minimum of 2 years, which need not necessarily be consecutive. In addition, the database contains metadata relating to sampling methodology and contextual information about each record.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Spatial location and grain:&lt;/strong&gt; BioTIME is a global database of 547,161 unique sampling locations spanning the marine, freshwater and terrestrial realms. Grain size varies across datasets from 0.0000000158 km2 (158 cm2) to 100 km2 (1,000,000,000,000 cm2). Time period and grain BioTIME records span from 1874 to 2016. The minimal temporal grain across all datasets in BioTIME is a year.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Major taxa and level of measurement:&amp;nbsp;&lt;/strong&gt;BioTIME includes data from 44,440 species across the plant and animal kingdoms, ranging from plants, plankton and terrestrial invertebrates to small and large vertebrates.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Software format:&lt;/strong&gt; .csv and .SQL.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">7</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>32</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Robinson, David M.</style></author><author><style face="normal" font="default" size="100%">Aanderud, Zachary T.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Microbial and CO2 responses to water stresses show decreased productivity and diversity through time</style></title><secondary-title><style face="normal" font="default" size="100%">Department of Plant and Wildlife Sciences</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">dormancy</style></keyword><keyword><style  face="normal" font="default" size="100%">PiCRUST</style></keyword><keyword><style  face="normal" font="default" size="100%">turnover</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">05/2018</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://scholarsarchive.byu.edu/etd/6830</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">Brigham Young University</style></publisher><pub-location><style face="normal" font="default" size="100%">Provo, UT</style></pub-location><volume><style face="normal" font="default" size="100%">M.S.</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Some bacterial taxa when stimulated by water additions will break dormancy, grow, and become dominant members of the community and contribute significant pulses of&amp;nbsp;CO&lt;sub&gt;2&lt;/sub&gt; associated with the rewetting event. These pulses of activity are associated with high levels of bacterial productivity in soils. (Aanderud et al. 2011) We examined the bacterial taxa that resuscitate and become metabolically active following two forms of water stress (soil drying- rewetting and freeze-thaw cycles) and we captured and measured the CO&lt;sub&gt;2&lt;/sub&gt; emanating from those soils. Specifically, We used target metagenomics, which uses a specific gene pool within bacteria that is associated with a function of an ecological process, in this case active (16S rRNA communities) bacteria and all bacteria (16S rRNA communities) during drying-rewetting and freeze-thaw cycles. We measured an array of community dynamics (i.e., evenness, richness, diversity, relative abundance of taxa, and network analyses between taxa) as dry soils are rewetted and as frozen soils thaw multiple times in three cold desert soils. Soils from all three locations exhibited some similar bacterial taxa and gene function but were large in part their own community derived from the evolutionary history of the continent in which they reside.&lt;/p&gt;</style></abstract><work-type><style face="normal" font="default" size="100%">masters</style></work-type></record></records></xml>