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Displaying 6,411 - 6,420 of 65,176 Publications- It is a critical time to reflect on the National Ecological Observatory Network (NEON) science to date as well as envision what research can be done right now with NEON (and other) data and what training is needed to enable a diverse user community. NEON became fully operational in May 2019 and has pivoted from planning and construction to operation and maintenance. In this overview, the history of and foundational thinking around NEON are discussed. A framework of open science is described with a discussion of how NEON can be situated as part of a larger data constellation - across...AuthorsAnika P. Staccone, Kaitlin Stack Whitney, Diane M. Stanitski, Eva Stricker, Thilina D. Surasinghe, Sarah K. Thomsen, Patrisse M. Vasek, Li Xiaolu, Di Yang, Rong Yu, Kelsey M. Yule, Kai Zhu, R. Chelsea Nagy, Jennifer K. Balch, Erin K. Bissell, Megan E. Cattau, Nancy F. Glenn, Benjamin S. Halpern, Nayani Ilangakoon, Brian Johnson, Maxwell B. Joseph, Sergio Marconi, Catherine O’Riordan, James Sanovia, Tyson L. Swetnam, William R. Travis, Leah A. Wasser, Elizabeth Woolner, Phoebe Zarnetske, Mujahid Abdulrahim, John Adler, Grenville Barnes, Kristina J. Bartowitz, Rachael E. Blake, Sara P. Bombaci, Julien Brun, Jacob D. Buchanan, K. Dana Chadwick, Melissa S. Chapman, Steven S. Chong, Y. Anny Chung, Jessica R. Corman, Jannelle Couret, Erika Crispo, Thomas G. Doak, Alison Donnelly, Katharyn A. Duffy, Kelly H. Dunning, Sandra M. Duran, Jennifer W. Edmonds, Dawson E. Fairbanks, Andrew J. Felton, Christopher R. Florian, Daniel Gann, Martha Gebhardt, Nathan S. Gill, Wendy K. Gram, Jessica S. Guo, Brian J. Harvey, Katherine R. Hayes, Matthew R. Helmus, Robert T. Hensley, Kelly L. Hondula, Tao Huang, Wiley J. Hundertmark, Virginia Iglesias, Pierre-Andre Jacinthe, Lara S. Jansen, Marta A. Jarzyna, Tiona M. Johnson, Katherine D. Jones, Megan A. Jones, Michael G. Just, Youssef O. Kaddoura, Aurora K. Kagawa-Vivani, Aleya Kaushik, Adrienne B. Keller, Katelyn B. S. King, Justin Kitzes, Michael J. Koontz, Paige V Kouba, Wai-Yin Kwan, Jalene M. LaMontagne, Elizabeth A. LaRue, Daijiang Li, Bonan Li, Yang Lin, Daniel Liptzin, William Alex Long, Adam L. Mahood, Samuel S. Malloy, Sparkle L. Malone, Joseph M. McGlinchy, Courtney L. Meier, Brett A. Melbourne, Nathan Mietkiewicz, Jeffrey T. Morisette, Moussa Moustapha, Chance Muscarella, John Musinsky, Ranjan Muthukrishnan, Kusum Naithani, Merrie Neely, Kari Norman, Stephanie M. Parker, Mariana Perez Rocha, Laís Petri, Colette A. Ramey, Sydne Record, Matthew W. Rossi, Michael SanClements, Victoria M. Scholl, Anna K. Schweiger, Bijan Seyednasrollah, Debjani Sihi, Kathleen R. Smith, Eric R. Sokol, Sarah A. Spaulding, Anna I Spiers, Lise A. St. DenisKeywordsSourceEcosphere. 12(12): e03833.Year2021
- The origins of the Luquillo Long Term Ecological Research Program are traced through four historical trends that still influence research activity in Puerto Rico’s Luquillo Mountains: (1) A history of identifying lands for protection and their designation for public uses; (2) A history of governmental and non-governmental institutions acting with the foresight to pursue scientific research for the benefit of economic development and the will to support scientific activity; (3) The uninterrupted progression of scientific activity through projects and programs that cumulatively developed a...AuthorsAriel E. LugoKeywordsYear2021
- Sensible energy is the primary mode of heat dissipation from combustion in wildland surface fires. However, despite its importance to fire dynamics, smoke transport, and in determining ecological effects, it is not routinely measured. McCaffrey and Heskestad (A robust bidirectional low-velocity probe for flame and fire application. Combustion and Flame 26:125–127, 1976) describe measurements of flame velocity from a bi-directional probe which, when combined with gas temperature measurements, can be used to estimate sensible heat fluxes. In this first field application of bi-directional...AuthorsMatthew B. Dickinson, Cyle E. Wold, Bret W. Butler, Robert L. Kremens, Daniel Jimenez, Paul A. Sopko, Joseph J. O'BrienKeywordsSourceSensorsYear2021
- Small catchments have served as sentinels of forest ecosystem responses to changes in air quality and climate. The Hubbard Brook Experimental Forest in New Hampshire has been tracking catchment water budgets and their controls – meteorology and vegetation – since 1956. Water budgets in four reference catchments indicated an approximately 30% increase in the evapotranspiration (ET) as estimated by the difference between precipitation (P) and runoff (RO) starting in 2010 and continuing through 2019. We analyzed the annual water budgets, cumulative deviations of the daily P, RO and water...AuthorsMark B. Green, Scott Bailey, John Campbell, Kevin J. McGuire, Amey Bailey, Timothy J. Fahey, Nina Lany, David ZietlowKeywordsSourceHydrological ProcessesYear2021
- AuthorsKatherine MacFarland, Richard StraightYear2021
- Cellulose nanocrystals (CNCs) are crystalline nano-rods that have high specific strength with hydroxyl surface chemistry. A wide range of chemical modifications have been performed on the surface of CNCs to increase their potential to be used in applications where compatibilization with other materials is required. Understanding the surface chemistry of CNCs and critically examining the functionalization technique are crucial to enable control over the extent of modification and the properties of CNCs. This work aims to optimize the surface modification of wood-derived CNCs with isocyanatoe...AuthorsEzgi M. Dogan-Guner, Gregory Schueneman, Meisha L. Shofner, J. Carson. MeredithKeywordsSourceCellulose journalYear2021
- The mitochondrial phylogeography of some conifers shows evidence of introgression from sympatric congeners, with mitochondrial lineages not always refecting species. This suggests that unique mitochondrial haplotypes previously reported in the ponderosa pines (Pinus subsection Ponderosae) from the USA might be more widespread in taxa not yet sampled. Recent nuclear and plastome phylogenies placed Pinus ponderosa paraphyletic in relation to Ponderosae in Mexico and Central America and confrmed that sympatric Pinus jefreyi is more closely related to the California big-cone pines (Pinus...AuthorsAnn Willyard, David S. Gernandt, Alejandro López-Reyes, Kevin M. PotterSourceTree Genetics & GenomesYear2021
- Wind disturbance affects thousands of km2 annually in eastern temperate forests, yet few studies address long-term recovery. Here, I assess changes in forest structure and composition before (pre-Opal), immediately after (Y0), and 21 years after (Y21) Hurricane Opal in 0.166-1.08 ha gaps created by microbursts, and undisturbed controls. In gaps, an average of 24.0% of trees (41.1% BA) were windthrown and 1.0% of trees (1.1% BA) died standing during Opal; scarlet and black oak were disproportionately windthrown. Subsequent windthrow or standing tree mortality rates did not differ between...AuthorsCathryn H. GreenbergKeywordsSourceForest Ecology and ManagementYear2021
- A recent suite of new global-scale satellite sensors and regional-scale airborne campaigns are providing a wealth of remote sensing data capable of dramatically advancing our current understanding of the spatial distribution of forest structure and carbon stocks. However, a baseline for forest stature and biomass estimates has yet to be established for the wide array of available remote sensing products. At present, it remains unclear how the estimates from these sensors compare to one another in terrestrial forests, with a clear dearth of studies in high carbon density mangrove ecosystems....AuthorsAtticus E.L. Stovall, Temilola Fatoyinbo, Nathan M. Thomas, John Armston, Médard Obiang Ebanega, Marc Simard, Carl C. Trettin, Robert Vancelas Obiang Zogo, Igor Akendengue Aken, Michael Debina, Alphna Mekui Me Kemoe, Emmanuel Ondo Assoumou, Jun Su Kim, David Lagomasino, Seung-Kuk Lee, Jean Calvin Ndong Obame, Geldin Derrick Voubou, Chamberlain Zame. EssonoKeywordsSourceScience of Remote SensingYear2021
- We investigated geographic variation in the semiochemistry of major disturbance agents of western North American pine forests, Dendroctonus brevicomis Le Conte and Dendroctonus barberi Hopkins (Coleoptera: Curculionidae: Scolytinae), species separated by the Great Basin in the USA that until recently were synonymous. At 15 sites in the western USA and northern Mexico, beetle populations were examined to determine (1) pheromone production by solitary, mining females, (2) male electroantennogram amplitudes in response to known semiochemicals for the genus, or (3) relative attractiveness of...AuthorsBrian Sullivan, Amanda M. Grady, Richard W. Hofstetter, Deepa S. Pureswaran, Cavell Brownie, Daniel Cluck, Tom Coleman, Andrew Graves, Elizabeth Willhite, Lia Spiegel, Dwight Scarbrough, Andrew Orlemann, Gerardo ZúñigaKeywordsSourceJournal of Chemical EcologyYear2021