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Displaying 171 - 180 of 65,126 Publications- This paper introduced a simple, efficient method to prepare mechanically strong lignin-based foams (lignofoams) with open-cell structures using a facile baking technique. The self-expansion of lignin occurred without any additional chemical blowing agents, foaming agents, plasticizers, or lubricants. During heating, kraft lignin softened, and the internal water, either initially adsorbed or generated in situ through the dehydration of hydroxyl groups, acted as a natural blowing agent for foaming a porous foam structure. Incorporating a small amount of polypropylene (PP) enhanced mechanical...AuthorsQiangu Yan, Neda Arabzadeh Nosratabad, Timothy Ketelboeter, Craig M. Clemons, Liu Liu, Caixia Wan, Peter Kitin, Zhiyong CaiKeywordsSourcePolymersYear2026
- Few-layer (three- to four-layer) graphene formed adjacent to zero-valent copper nanoparticles (FG-nZVCu) is a promising material for a wide range of applications, including catalysis, environmental remediation, energy storage, and functional composite development. Kraft lignin (KL) has attracted increasing interest as a sustainable and underutilized solid-state carbon precursor for the production of value-added graphitic materials. The effects of five different solvents on the solubility of KL and the dispersion uniformity of Cu2+ in the KL–solvent matrices were first investigated,...AuthorsSijin Guo, Qiangu Yan, Yunsang Kim, Todd Mlsna, Jason Tyler Street, Zhiyong Cai, Jilei ZhangSourceJournal of Materials Chemistry AYear2026
- Understanding recent and potential future trends in recreation demand can help inform natural resource managers and decision makers as they plan for investments that support sustainable recreation and plan how to manage forests and rangelands that provide a diversity of goods and ecosystem services. We focus on participation and engagement for 17 recreation activities common in forests and rangelands across the United States. For each activity, within each U.S. region and for all ownerships collectively, we project the number of adult participants and the number of days of recreation in...AuthorsAshley E. Askew, Eric M. White, Gary T. GreenKeywordsSourceGen. Tech. Rep. PNW-GTR-1045. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 113 p. (Online Only).Year2026
- Peatlands are among Earth’s largest terrestrial carbon stores and are crucial for climate regulation, biodiversity conservation, and water security. Yet peatlands worldwide are deteriorating under pressures from climate change and human disturbance. Strategic, globally coordinated research is urgently needed to protect, restore and manage peatlands so they can continue to deliver essential ecosystem services. To meet this challenge, here we present a global research prioritisation for peatland science, based on a two-stage online survey and expert voting exercise involving 467 participants...AuthorsAlice M. Milner, Michelle M. McKeown, Monika Ruwaimana, Angela Gallego-Sala, Julie Loisel, Johanna Menges, Thomas P. Roland, Crystal A. E. Ahiable, Leonard O. Akwany, Paola Alarcon-Prado, Gusti Anshari, Linto Alappat, Andy J. Baird, Mariusz Bąk, Jean Jacques Bambuta Boole, Stephanie E. Batten, Yannick Beaudoin, Michel Bechtold, Zhao-Jun Bu, Sri Parwati Murwani Budisusanti, Juan C. Benavides, Sakonvan Chawchai, Rodney A. Chimner, Alexander R. Cobb, Lydia E. S. Cole, John Connolly, Janet Coral Calvo Vargas, Colin J. Courtney-Mustaphi, Scott J. Davidson, Angeles de la Peña, Emma Duley, Samer Elshehawi, Ingrid Espinoza León, Sarah A. Finkelstein, Michelle Garneau, Nicholas T. Girkin, Erin Glen, Samantha Grover, Piet-Louis Grundling, Josephine N. Handley, Carole Helfter, Kristell Hergoualc’h, Alison M. Hoyt, Xianyu Huang, Gerard Imani, Alexander James, Chantal Kabonyi Nzabandora, Carol Kagaba Kairumba, Frank Kansiime, Randy Kolka, Gerbrand Koren, Atte Korhola, Haruni Krisnawati, Ritesh Kumar, Mariusz Lamentowicz, Kristiina Lång, Tuula Larmola, Simon L. Lewis, Omar R. Lopez, Efrén López-Blanco, Massimo Lupascu, Mónica Maldonado-Fonken, Robert Marchant, Katarzyna Marcisz, Natalia G. Mazei, Yuri A. Mazei, Michel Mbasi, Lulie Melling, Lera Miles, Luca Montanarella, Patrick T. Moss, Fabiola Murgía-Flores, Minh-Ky NGuyen, Nisa Novita, Dylan J. S. Oliver, Emuobosa Akpo Orijemie, Mitsuru Osaki, Susan E. Page, Richard D. Pancost, Shilpa Pandey, Nichole Püschel Hoeneisen, Christian H. Quintana Zagaceta, Amila S. Ratnayake, Mark S. Reed, Line Rochefort, Bárbara Saavedra, Japheth Samuel, Patrick Scheel, Hans Schutten, Florian Siegert, Caroline Signori-Müller, Maria Strack, Fred Stolle, Graeme T. Swindles, Franziska Tanneberger, Merritt R. Turetsky, Adriana B. Urciuolo, Minna Väliranta, Gert Verstraeten, Matthew Warren, Kara L. Webster, Jennie Whinam, Dylan M. Young, Zicheng Yu, Hui ZhangSourceCommunications Earth & EnvironmentYear2026
- Shifts in insect and pathogen pressure with climate change present a potential threat to forest health, carbon sequestration and biodiversity. Here we evaluate climatic effects on insect and pathogen incidence across North America and forecast their future trends under climate scenarios. Using Bayesian hierarchical regression fit to records on more than 1 million trees, we show that warming and drought jointly exacerbate insect and disease incidence in historically colder and wetter regions, while reducing incidence in warmer and drier regions. Models allowing contemporary climate effects...AuthorsZihui Wang, Andrew Gougherty, T. Jonathan DaviesKeywordsSourceNature Ecology & EvolutionYear2026
- Accurate, spatially consistent estimates of tree density remain elusive at continental scales, limiting our ability to assess forest structure, carbon stocks, and biodiversity. Existing global assessments have relied on simplified statistical models and sparse, heterogeneous ground data that are insufficient to capture nonlinear ecological interactions and spatial variability. To address these limitations, we integrated more than 600,000 harmonized ground-based forest inventory plots with satellite-derived vegetation indices, climate surfaces, soil properties, and topographic covariates to...AuthorsMustak Ahmad, Yun Tang, Andrew J. Lister, Javier G.P. Gamarra, William G. Powell, Nathan R. Beane, Wook Jin Choi, Ankita Mitra, Amit Kumar, Anibal Cuchietti, Alain Paquette, Eric Searle, Jiaxin Chen, Han Y.H. Chen, Frans Bongers, Jorge A. Meave, Mario Guevara, Aylin Barreras, José Armando Alanís de la Rosa, Rafael Mayorga Saucedo, Rubi Angélica Cuenca Lara, César Moreno García, Carlos Isaías Godínez Valdivia, Carina Edith Delgado Caballero, Maria de los Ángeles Soriano Luna, Metzli Ileana Aldrete Leal, Sandra Liliana Medina Casillas, Johny Romero Correa, Sergio Armando Villela Gaytán, J. Javier Corral Rivas, José Daniel Vega-Nieva, Jaime Briseño-Reyes, Pablito Marcelo López-Serrano, Tom M. Fayle, Jan Altman, Daniel J. Johnson, Jingjing LiangKeywordsSourceForest EcosystemsYear2026
- Mas de la mi tad de las reinitas de! Nuevo Mundo (Aves: Parulidae) presentan evidencia de hibridacion intra- e inter-generica. En este trabajo documentamos un individuo de! genero Setophaga, fotografiado en un ecosistema de manglar en la Republica Dominicana el 4 de octubre de 2024. Este individuo muestra caracteristicas morfol6gicas compatibles con un hibrido entre Reinita Amarilla Americana S. aestiva y Reinita Galana S. discolor. Las caracteristicas diagnosticas de! hibrido incluyen una medialuna parcial bajo el ojo y unas estrias gris negruzco en los flancos.AuthorsWayne J. Arendt, Gerald Bauer, Modesto Francisco NunezSourceCotingaYear2026
- Although the Northern Rough-winged Swallow (Stelgidopteryx serripennis) typically winters in Mexico and Central America, recent observations in the Dominican Republic highlight the Caribbean Basin as a potentially important migratory stopover region. We quantified the spatiotemporal patterns of this species in the coastal wetlands of the Samaná Peninsula during mid-January 2019 and mid-March 2023. We recorded maximum flock sizes of approximately 3,000 individuals in January 2019, and 4,000 in March 2023. The January event involved a large westward flight at altitudes of up to 2,000 m,...AuthorsWayne J. Arendt, Marvin A. Tórrez, María M. Paulino, Luis R. Paulino, Danilo A. Mejía, Juan C. Calcaño, Modesto Francisco NúñezKeywordsSourceCotingaYear2026
- Knowledge of Nicaragua's Pacific slope seasonal tropical dry forest ecosystem and its avifauna remains limited, hindering effective conservation planning. To assess avian community composition and relative abundance, from 2009 to 2018 we conducted standardized monthly surveys in 147 point counts at 29 study sites along Nicaragua's Pacific slope. We also determined the influence of geographic, climatic, and landscape predictors on avian species richness and community similarity among sites. Overall, we documented 257 species at 29 study sites along the Pacific slope, including 17 species...AuthorsWayne J. Arendt, Marvin Torrez, Edgar Castañeda, María Elena Salgado García, Marlon Sotelo, Orlando JarquínKeywordsSourceOrnitología NeotropicalYear2026
- Human land‐use has dramatically altered the amount, quality and connectivity of habitat for species worldwide. Understanding how these changes affect individual species is essential for predicting the overall consequences of land‐use change for biodiversity.The Caribbean island of Puerto Rico. Forest cover on the island increased from about 18% to 45% from the late 1940's to the early 2000's.Using data on modelled geographic distributions and functional traits for 546 tree species, we evaluated how the gain of modelled potential suitable habitat (i.e., climatically‐suitable and forested)...AuthorsLaura Moro, Pascal Milesi, Eileen Helmer, María Uriarte, Robert MuscarellaKeywordsSourceDiversity and DistributionsYear2026