Treesearch
Displaying 3,231 - 3,240 of 64,769 Publications- Although wetlands contain a disproportionately high amount of earth’s total soil carbon, many regions are still poorly mapped and with unquantified carbon stocks. The tropical Andes contain a high concentration of wetlands consisting mostly of wet meadows and peatlands, yet their total organic carbon stocks are poorly quantified, as well as the carbon fraction that wet meadows store compared to peatlands. Therefore, our goal was to quantify how soil carbon stocks vary between wet meadows and peatlands for a previously mapped Andean region, Huascarán National Park, Peru. Our secondary goal...AuthorsRodney A. Chimner, Sigrid C. Resh, John A. Hribljan, Michael Battaglia, Laura Bourgeau-Chavez, Gillian Bowser, Erik LilleskovKeywordsSourceFrontiers in Plant ScienceYear2023
- Peatland ecosystems cover only 3% of the world’s land area; however, they store one-third of the global soil carbon (C). Microbial communities are the main drivers of C decomposition in peatlands, yet we have limited knowledge of their structure and function. While the microbial communities in the Northern Hemisphere peatlands are well documented, we have limited understanding of microbial community composition and function in the Southern Hemisphere peatlands, especially in Australia. We investigated the vertical stratification of prokaryote and fungal communities from Wellington Plains...AuthorsChristina Birnbaum, Jennifer Wood, Erik Lilleskov, Louis James Lamit, James Shannon, Matthew Brewer, Samantha GroverKeywordsSourceMicrobial EcologyYear2023
- The Global Plant Health Assessment (GPHA) is a collective, volunteer-based effort to assemble expert opinions on plant health and disease impacts on ecosystem services based on published scientific evidence. The GPHA considers a range of forest, agricultural, and urban systems worldwide. These are referred to as (Ecoregion × Plant System), i.e., selected case examples involving keystone plants in given parts of the world. The GPHA focuses on infectious plant diseases and plant pathogens, but encompasses the abiotic (e.g., temperature, drought, and floods) and other biotic (e.g., animal...AuthorsIvette Acuña, Jorge Andrade-Piedra, Didier Andrivon, Josep Armengol, A. Elizabeth Arnold, Jacques Avelino, Ranajit Bandyopadhyay, Wubetu Bihon Legesse, Clive H. Bock, Federica Bove, Tania Brenes-Arguedas, Agnès Calonnec, Marcelo Carmona, Angus J. Carnegie, Nancy P. Castilla, Xianming Chen, Helvecio Della Coletta-Filho, Phyllis D. Coley, Kerik D. Cox, Triona Davey, Emerson Del Ponte, Sandra Denman, Marie-Laure Desprez-Loustau, Megan M. Dewdney, Annika Djurle, André Drenth, Alexis Ducousso, Paul Esker, Komi M. Fiaboe, Paul Hendrik Fourie, Susan J. Frankel, Pascal Frey, Sara Garcia-Figuera, Karen A. Garrett, Maxime Guérin, Giles E. St. J. Hardy, Hans Hausladen, Xiaoping Hu, Daniel Hüberli, Jennifer Juzwik, Zhensheng Kang, Lawrence Kenyon, Jan Kreuze, Peter Kromann, Jerome Kubiriba, Paulo Kuhnem, J. Kumar, P. Lava Kumar, Marc-Henri Lebrun, James P. Legg, Anna Leon, Zhanhong Ma, George Mahuku, Robert O. Makinson, Cristina Marzachi, Bruce A. McDonald, Neil McRoberts, Abebe Menkir, Alexey Mikaberidze, Isabel A. Munck, Andrew Nelson, Nga Thi Thu Nguyen, Emer O’Gara, Peter Ojiambo, Alejandro Ortega-Beltran, Pierce Paul, Sarah Pethybridge, Jean Pinon, Tod Ramsfield, David M. Rizzo, Vittorio Rossi, Irda Safni, Sonam Sah, Alberto Santini, Francisco Sautua, Serge Savary, Pepijn Schreinemachers, Manjari Singh, Erin R. Spear, Ramasamy Srinivasan, Leena Tripathi, Antonio Vicent, Altus Viljoen, Laetitia Willocquet, Alex John Woods, Boming Wu, Xianchun Xia, Xiangming Xu, Jonathan Yuen, Paul-Camilo Zalamea, Changyong ZhouKeywordsSourcePlant Disease. 107(12): 3649-3665.Year2023
- Barred Owls (Strix varia) have recently expanded westward from eastern North America, contributing to substantial declines in Northern Spotted Owls (Strix occidentalis caurina). Passive acoustic monitoring (PAM) represents a potentially powerful approach for tracking range expansions like the Barred Owl’s, but further methods development is needed to ensure that PAM-informed occupancy models meaningfully reflect population processes. Focusing on the leading edge of the Barred Owl range expansion in coastal California, we used a combination of PAM data, GPS-tagging, and active surveys to...AuthorsWhitney Watson, Connor Wood, Kevin Kelly, Daniel Hofstadter, Nicholas Kryshak, Ceeanna Zulla, Sheila Whitmore, Virginia O’Rourke, John J. Keane, M Zachariah. PeeryKeywordsSourceOrnithological Applications. 125(3): 106131.Year2023
- Predator populations are imperiled globally, due in part to changing habitat and trophic interactions. Theoretical and laboratory studies suggest that heterogeneous landscapes containing prey refuges acting as source habitats can benefit both predator and prey populations, although the importance of heterogeneity in natural systems is uncertain. Here, we tested the hypothesis that landscape heterogeneity mediates predator–prey interactions between the California spotted owl (Strix occidentalis occidentalis)—a mature forest species—and one of its principal prey, the dusky-footed woodrat...AuthorsCorbin C. Kuntze, Jonathan N. Pauli, Ceeanna J. Zulla, John J. Keane, Kevin N. Roberts, Brian P. Dotters, Sarah Sawyer, M. Zachariah. PeeryKeywordsSourceEcological Applications. 33(8): e2908.Year2023
- Increased water scarcity and drought frequency are creating water management challenges for many communities in the western U.S. In response, the Western Association of Agricultural Experiment Station Directors sponsored a virtual summit in August 2020 to develop a framework for identifying and addressing the most pressing water issues in the western United States (the West). Summit attendees were research scientists, university extension specialists and professionals, and federal/state agency representatives with knowledge and expertise of water management in the West. The summit elicited...AuthorsTravis Warziniack, Robert Heinse, Alexander Fernald, Michael Gaffney, Kristiana Hansen, Bret Hess, Lyla Houglum, Ginger Paige, Qin ZhangKeywordsSourceJournal of Contemporary Water Research and Education. 178: 47-56.Year2023
- Agroforestry systems (AFS) are land management systems that encompass the deliberate integration of trees with crops or livestock, or both within a single management unit. When properly designed and actively managed, AFS are sustainable, productive and resilient systems that provide economic, social and environmental benefits to farmers, communities and society. These benefits accrue because well-adapted AFS utilize tree and crop species with complementary growth traits, chosen for their mutually beneficial interactions, which optimize the use of available natural resources, such as light,...AuthorsElizabeth Rogers, Ronald S. Zalesny Jr., Ryan Vinhal, Jan Weger, Joris Van Acker, Raju Soolanayakanahally, Priya Pajel, Elaine Springgay, Faustine Zoveda, S Chauhan, Ian McIvor, Pierluigi Paris, H Singh, Niels Thevs, Patrick WormsSourceUnited States Report to the International Commission on Poplars and Other Fast-Growing Trees Sustaining People and the Environment (IPC) of the Food and Agriculture Organization of the United Nations (UN FAO)Year2023
- In wildland-urban interface areas, firefighters balance wildfire suppression and structure protection. These tasks are often performed under resource limitations, especially when many structures are at risk. To address this problem, wildland firefighters employ a process called “structure triage” to prioritize structure protection based on perceived defensibility. Using a dataset containing triage assessments of thousands of structures within the Western US, we developed a machine learning model that can improve the understanding of factors contributing to assessed structure defensibility....AuthorsAlexander J. Heeren, Philip E. Dennison, Michael J. Campbell, Matthew P. ThompsonKeywordsSourceFire. 6: 474.Year2023
- The use of composite materials has seen many new innovations for a large variety of applications. The area of reinforcement in composites is also rapidly evolving with many new discoveries, including the use of hybrid fibers, sustainable materials, and nanocellulose. In this review, studies on hybrid fiber reinforcement, the use of nanocellulose, the use of nanocellulose in hybrid forms, the use of nanocellulose with other nanomaterials, the applications of these materials, and finally, the challenges and opportunities (including safety issues) of their use are thoroughly discussed. This...AuthorsMehmet Özgür Seydibeyoğlu, Alperen Dogru, Jinwu Wang, Mitch Rencheck, Yousoo Han, Lu Wang, Elif Alyamaç Seydibeyoğlu, Xianhui Zhao, Kimberly Ong, Jo Anne Shatkin, Siamak Shams Es-haghi, Sunil Bhandari, Soydan Ozcan, Douglas J. GardnerKeywordsSourceJournalYear2023
- Cotton is a natural fiber containing more than 95% of cellulose. With worldwide cotton consumption continuously increasing, the amount of cotton waste generated is enormous. Most of the cotton waste ends up in landfill or incinerators, resulting in a huge waste of this excellent natural resource. In this project, cotton waste was recycled to produce polypropylene nanocomposites. Instead of using the traditional two-step nanofiber extraction and compounding technique, an integrated process was adopted to combine nanofibrillation and compounding into one step. Results showed that cotton...AuthorsDan Liang, Wangcheng Liu, Tuhua Zhong, Hang Liu, Renuka Dhandapani, Hui Li, Jinwu Wang, Michael WolcottKeywordsSourceJournalYear2023