2012 LTER ASM - LUQ http://asm2012.lternet.edu/taxonomy/term/93/0 en Riparian Nitrogen Dynamics in Tropical Forest Groundwaters: A Challenge to Our Understanding of Near-Stream Ecosystem Function http://asm2012.lternet.edu/content/riparian-nitrogen-dynamics-tropical-forest-groundwaters-challenge-our-understanding-near-str <div class="field field-type-computed field-field-poster-number"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Poster Number:&nbsp;</div> 402 </div> </div> </div> <div class="field field-type-userreference field-field-poster-presenter"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Presenter/Primary Author:&nbsp;</div> <a href="http://asm2012.lternet.edu/users/rbrereton" title="View user profile.">Richard Brereton</a> </div> </div> </div> <p>Riparian zones are widely understood to control the flux of water, nutrients, and carbon from terrestrial to aquatic ecosystems.</p><div class="field field-type-text field-field-poster-student-poster"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Student Poster:&nbsp;</div> Yes </div> </div> </div> <p><a href="http://asm2012.lternet.edu/content/riparian-nitrogen-dynamics-tropical-forest-groundwaters-challenge-our-understanding-near-str" target="_blank">read more</a></p> Site Science Core Research Areas LUQ Patterns of inorganic inputs and movements of nutrients through soils, groundwater and surface waters Biogeochemistry Ecosystem Ecology Nutrient Fluxes Mon, 10 Sep 2012 19:03:31 +0000 rbrereton 578 at http://asm2012.lternet.edu Forest metacommunity structure along an elevational gradient in the Luquillo Mountains, Puerto Rico (LUQ) http://asm2012.lternet.edu/content/forest-metacommunity-structure-along-elevational-gradient-luquillo-mountains-puerto-rico-luq <div class="field field-type-computed field-field-poster-number"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Poster Number:&nbsp;</div> 394 </div> </div> </div> <div class="field field-type-userreference field-field-poster-presenter"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Presenter/Primary Author:&nbsp;</div> <a href="http://asm2012.lternet.edu/users/jzimmerman" title="View user profile.">Jess Zimmerman</a> </div> </div> </div> <div class="field field-type-text field-field-poster-authors"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Co-Authors:&nbsp;</div> Steven Presley </div> <div class="field-item even"> <div class="field-label-inline"> Co-Authors:&nbsp;</div> Michael Willig </div> </div> </div> <p>Metacommunity theory provides a rich framework for identifying structure along environmental gradients and for evaluating the relative contributions of local and regional processes in molding biolo</p><p><a href="http://asm2012.lternet.edu/content/forest-metacommunity-structure-along-elevational-gradient-luquillo-mountains-puerto-rico-luq" target="_blank">read more</a></p> Site Science Core Research Areas LUQ Spatial and temporal distribution of populations selected to represent trophic structure Community Ecology Thu, 06 Sep 2012 16:03:30 +0000 jzimmerman 567 at http://asm2012.lternet.edu Iron redox cycling: unexplored mechanisms for soil organic matter decomposition http://asm2012.lternet.edu/content/iron-redox-cycling-unexplored-mechanisms-soil-organic-matter-decomposition <div class="field field-type-computed field-field-poster-number"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Poster Number:&nbsp;</div> 341 </div> </div> </div> <div class="field field-type-userreference field-field-poster-presenter"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Presenter/Primary Author:&nbsp;</div> <a href="http://asm2012.lternet.edu/users/wsilver" title="View user profile.">Whendee Silver</a> </div> </div> </div> <div class="field field-type-text field-field-poster-authors"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Co-Authors:&nbsp;</div> Steven Hall </div> </div> </div> <p>Iron (Fe) oxide minerals have long been known to protect soil organic carbon (C) from microbial decomposition, especially in humid tropical soils abundant in both Fe and C.</p><p><a href="http://asm2012.lternet.edu/content/iron-redox-cycling-unexplored-mechanisms-soil-organic-matter-decomposition" target="_blank">read more</a></p> Site Science Altered moisture regimes LUQ Pattern and control of organic matter accumulation in surface layers and sediments Biogeochemistry Fri, 31 Aug 2012 18:38:30 +0000 wsilver 505 at http://asm2012.lternet.edu Distribution of Ammonia-Oxidazing Archaea along the Elevation Gradient at El Yunque Rain Forest in Puerto Rico http://asm2012.lternet.edu/content/distribution-ammonia-oxidazing-archaea-along-elevation-gradient-el-yunque-rain-forest-puerto <div class="field field-type-computed field-field-poster-number"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Poster Number:&nbsp;</div> 273 </div> </div> </div> <div class="field field-type-userreference field-field-poster-presenter"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Presenter/Primary Author:&nbsp;</div> <a href="http://asm2012.lternet.edu/users/scantrell" title="View user profile.">Sharon Cantrell</a> </div> </div> </div> <div class="field field-type-text field-field-poster-authors"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Co-Authors:&nbsp;</div> Anamary Carazo-Carrión </div> <div class="field-item even"> <div class="field-label-inline"> Co-Authors:&nbsp;</div> Diana L. Laureano-Córdova </div> <div class="field-item odd"> <div class="field-label-inline"> Co-Authors:&nbsp;</div> José R. Pérez-Jiménez </div> </div> </div> <p>Archaea has a key role in ammonia oxidation reactions.</p><p><a href="http://asm2012.lternet.edu/content/distribution-ammonia-oxidazing-archaea-along-elevation-gradient-el-yunque-rain-forest-puerto" target="_blank">read more</a></p> Site Science Population Studies LUQ Spatial and temporal distribution of populations selected to represent trophic structure Microbial Ecology Sun, 26 Aug 2012 16:27:02 +0000 scantrell 434 at http://asm2012.lternet.edu Earthworms effects on soil respiration in a sub-tropical wet forest in Puerto Rico http://asm2012.lternet.edu/content/earthworms-effects-soil-respiration-sub-tropical-wet-forest-puerto-rico <div class="field field-type-computed field-field-poster-number"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Poster Number:&nbsp;</div> 254 </div> </div> </div> <div class="field field-type-userreference field-field-poster-presenter"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Presenter/Primary Author:&nbsp;</div> <a href="http://asm2012.lternet.edu/user/10086" title="View user profile.">Grizelle Gonzalez</a> </div> </div> </div> <div class="field field-type-text field-field-poster-authors"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Co-Authors:&nbsp;</div> Dylan Rhea-Fournier (First Author) </div> </div> </div> <p>Carbon storage, as well as other ecosystem services of soils, is an emergent property on the landscape scale that can be attributed to mechanisms occurring on scales orders of magnitude smaller.</p><p><a href="http://asm2012.lternet.edu/content/earthworms-effects-soil-respiration-sub-tropical-wet-forest-puerto-rico" target="_blank">read more</a></p> Site Science Movement of Organic Matter LUQ Pattern and control of organic matter accumulation in surface layers and sediments Ecosystem Ecology Wed, 22 Aug 2012 15:34:03 +0000 ggonzalez 408 at http://asm2012.lternet.edu Patterns of soil properties and respiration along an elevation gradient in the Luquillo Mountains of Northeastern Puerto Rico http://asm2012.lternet.edu/content/patterns-soil-properties-and-respiration-along-elevation-gradient-luquillo-mountains-northea <div class="field field-type-computed field-field-poster-number"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Poster Number:&nbsp;</div> 247 </div> </div> </div> <div class="field field-type-userreference field-field-poster-presenter"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Presenter/Primary Author:&nbsp;</div> <a href="http://asm2012.lternet.edu/users/dchen" title="View user profile.">Dingfang Chen</a> </div> </div> </div> <div class="field field-type-text field-field-poster-authors"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Co-Authors:&nbsp;</div> Mei Yu </div> </div> </div> <p>As an important component in global carbon cycle, soil respiration is one of the primary paths to release carbon fixed by vegetation to the atmosphere.</p><div class="field field-type-text field-field-poster-student-poster"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Student Poster:&nbsp;</div> Yes </div> </div> </div> <p><a href="http://asm2012.lternet.edu/content/patterns-soil-properties-and-respiration-along-elevation-gradient-luquillo-mountains-northea" target="_blank">read more</a></p> Site Science Movement of Organic Matter LUQ Pattern and control of organic matter accumulation in surface layers and sediments Disturbance Ecology Mon, 20 Aug 2012 20:37:54 +0000 dchen 399 at http://asm2012.lternet.edu Separate Effects of Flooding and Anoxia on Soil Biogeochemistry and Greenhouse Gas Emissions http://asm2012.lternet.edu/content/separate-effects-flooding-and-anoxia-soil-biogeochemistry-and-greenhouse-gas-emissions <div class="field field-type-computed field-field-poster-number"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Poster Number:&nbsp;</div> 229 </div> </div> </div> <div class="field field-type-userreference field-field-poster-presenter"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Presenter/Primary Author:&nbsp;</div> <a href="http://asm2012.lternet.edu/users/gmcnicol" title="View user profile.">Gavin McNicol</a> </div> </div> </div> <div class="field field-type-text field-field-poster-authors"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Co-Authors:&nbsp;</div> Whendee L. Silver </div> </div> </div> <p>Soils are large sources of atmospheric greenhouse gases, and their magnitude and composition is strongly controlled by soil redox conditions.</p><div class="field field-type-text field-field-poster-student-poster"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Student Poster:&nbsp;</div> Yes </div> </div> </div> <p><a href="http://asm2012.lternet.edu/content/separate-effects-flooding-and-anoxia-soil-biogeochemistry-and-greenhouse-gas-emissions" target="_blank">read more</a></p> Site Science Altered moisture regimes Movement of Organic Matter LUQ Pattern and control of organic matter accumulation in surface layers and sediments Biogeochemistry Ecosystem Ecology Soil Science Trace Gas Fluxes Thu, 16 Aug 2012 19:32:57 +0000 gmcnicol 381 at http://asm2012.lternet.edu Characterizing a tropical dry forest stream: Parallels and deviations from tropical streams of the Luquillo Mountains and implications for the STREON experiment http://asm2012.lternet.edu/content/characterizing-tropical-dry-forest-stream-parallels-and-deviations-tropical-streams-luquillo <div class="field field-type-computed field-field-poster-number"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Poster Number:&nbsp;</div> 226 </div> </div> </div> <div class="field field-type-userreference field-field-poster-presenter"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Presenter/Primary Author:&nbsp;</div> <a href="http://asm2012.lternet.edu/user/15705" title="View user profile.">Lauren Koenig</a> </div> </div> </div> <div class="field field-type-text field-field-poster-authors"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Co-Authors:&nbsp;</div> W.H. McDowell </div> </div> </div> <p>Decades of research at the Luquillo LTER site in Puerto Rico has shed light on ecosystem dynamics important for understanding the structure and function of subtropical wet forest ecosystems.</p><div class="field field-type-text field-field-poster-student-poster"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Student Poster:&nbsp;</div> Yes </div> </div> </div> <p><a href="http://asm2012.lternet.edu/content/characterizing-tropical-dry-forest-stream-parallels-and-deviations-tropical-streams-luquillo" target="_blank">read more</a></p> Site Science Disturbance Patterns Landscape change Movement of Inorganic Matter Primary Production LUQ Pattern and control of primary production Patterns of inorganic inputs and movements of nutrients through soils, groundwater and surface waters Aquatic Ecology Ecosystem Ecology Thu, 16 Aug 2012 17:22:04 +0000 lkoenig 378 at http://asm2012.lternet.edu The Luquillo LTER Program http://asm2012.lternet.edu/content/luquillo-lter-program <div class="field field-type-computed field-field-poster-number"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Poster Number:&nbsp;</div> 223 </div> </div> </div> <div class="field field-type-userreference field-field-poster-presenter"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Presenter/Primary Author:&nbsp;</div> <a href="http://asm2012.lternet.edu/users/nbrokaw" title="View user profile.">Nicholas Brokaw</a> </div> </div> </div> <p>The Luquillo LTER Program (LUQ) focuses on understanding long-term change in tropical ecosystems and the consequences of change for ecosystem services.</p><p><a href="http://asm2012.lternet.edu/content/luquillo-lter-program" target="_blank">read more</a></p> Site Description Altered moisture regimes Disturbance Patterns Landscape change LUQ Patterns and frequency of site disturbances Biogeochemistry Biological Diversity Community Ecology Disturbance Ecology Wed, 15 Aug 2012 20:54:58 +0000 nbrokaw 373 at http://asm2012.lternet.edu The little things that run the world revisited: Invertebrates, ecosystem services and climate change http://asm2012.lternet.edu/content/little-things-run-world-revisited-invertebrates-ecosystem-services-and-climate-change <div class="field field-type-computed field-field-poster-number"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Poster Number:&nbsp;</div> 221 </div> </div> </div> <div class="field field-type-userreference field-field-poster-presenter"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Presenter/Primary Author:&nbsp;</div> <a href="http://asm2012.lternet.edu/users/cprather" title="View user profile.">Chelse Prather</a> </div> </div> </div> <div class="field field-type-text field-field-poster-authors"> <div class="field-items"> <div class="field-item odd"> <div class="field-label-inline-first"> Co-Authors:&nbsp;</div> Angela Laws </div> <div class="field-item even"> <div class="field-label-inline"> Co-Authors:&nbsp;</div> Shannon Pelini </div> </div> </div> <p>The sustainability of ecosystem services depends on a firm understanding of both how organisms provide these services to humans and how these organisms will be altered with a changing climate.&amp;nbsp</p><p><a href="http://asm2012.lternet.edu/content/little-things-run-world-revisited-invertebrates-ecosystem-services-and-climate-change" target="_blank">read more</a></p> Cross-site Science Cross-site Research LUQ Spatial and temporal distribution of populations selected to represent trophic structure Animal Ecology Wed, 15 Aug 2012 19:49:18 +0000 cprather 371 at http://asm2012.lternet.edu