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Displaying 41 - 50 of 62,750 Publications- Acquiring detailed 3D fuel data for advanced fire models remains challenging, particularly at large scales. To address this need, we present FastFuels, a novel platform designed to generate detailed 3D fuel data and accelerate the use of advanced fire models. FastFuels integrates existing fuel and spatial data with innovative modeling techniques to represent complex 3D fuel arrangements across landscapes. It leverages data sources including the Forest Inventory and Analysis (FIA) database and plot imputation maps, and incorporates advanced features such as data assimilation from LiDAR. This re...AuthorsAnthony Marcozzi, Lucas Wells, Russell Parsons, Eric Mueller, Rodman Linn, J. Kevin HiersSourceEnvironmental Modelling and Software. 183: 106214.Year2025
- Urban tree canopy (UTC) cover is rarely distributed equitably across social groups, space, and time. Over the past 20 years, research on the social, spatial, and temporal dynamics of UTC has grown considerably as municipalities adopt ambitious tree canopy cover goals. Yet less is known about how these three dimensions of tree canopy intersect. This paper brings these research areas together by examining i) which sets of social variables—population density, socioeconomic status, or lifestyle—are associated with UTC cover on residential lands, ii) how those relationships vary from front to back ...AuthorsDexter Locke, Alessandro Ossola, John Paul Schmit, J. Morgan GroveKeywordsSourceLandscape and Urban PlanningYear2025
- Ecological connectivity is increasingly acknowledged as crucial for biodiversity conservation. Iverson et al. suggest that increasing stewardship to ensure permeability is a better approach than protecting linkages between protected areas. We argue that the optimal approach depends on the landscape context, conservation goals, and species involved and suggest that linkage plans can prioritize specific places for protection and improved management. However, when using connectivity models as predictive tools, model validation is vital. We commend Iverson et al. for assessing whether modeled link...AuthorsA. T. H. Keeley, P. Beier, R. T. Belote, M. Clark, A. P. Clevenger, T. G. Creech, L. Ehlers, J. Faselt, M. Gogol-Prokurat, K. R. Hall, M. A. Hardy, J. A. Hilty, A. Jones, T. A. Nunez, K. Penrod, E. E. Poor, C. Schloss, D. M. Theobald, T. Smith, W. D. Spencer, R. Sutherland, G. M. Tabor, K. A. ZellerKeywordsSourceLandscape and Urban Planning. 253: 105217.Year2025
- The Forest Vegetation Simulator (FVS) is a forest dynamics modeling system with geographic variants covering forested areas of the contiguous United States. FVS was developed in the early 1980s and is used throughout the United Sates for predicting forest development and the effects of alternative forest management actions. FVS variants are also used in Canada and Europe. The Sixth Forest Vegetation Simulator (FVS) Conference, held March 7-9, 2023, in Fort Collins Colorado, consisted of 29 offered presentations and two invited panel discussions organized into three main topic areas: Model Deve...AuthorsJohn D. Shaw, Mike Battaglia, Mark CastleKeywordsSourceProceedings RMRS-P-81. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. n.p. https://doi.org/10.2737/RMRS-P-81Year2024
- The vast growth of spatial datasets in recent decades has fueled the development of many statistical methods for detecting spatial patterns. Two of the most commonly studied spatial patterns are clustering, loosely defined as data points with similar attributes existing close together, and dispersion, loosely defined as the semi-regular placement of data points with similar attributes. In this work, we develop a hypothesis test to detect spatial clustering or dispersion at specific distances in categorical areal data. Such data consists of a set of spatial regions whose boundaries are fixed an...AuthorsStella Self, Xingpei Zhao, Anja Zgodic, Anna Overby, David White, Alexander C. McLain, Caitlin DyckmanSourceSpatial StatisticsYear2024
- In forest ecosystems, the interplay among plant-driven processes and anthropogenic activities profoundly influences water balance dynamics. Hydraulic redistribution is one plant-driven process that can provide a large proportion of a plant's daily water. However, critical gaps exist in our knowledge of hydraulic redistribution including how forest management processes, like thinning, and site-specific factors like basal area and hillslope position, may affect it. To address these gaps, we used hourly volumetric water content measurements from 2016 to 2021 from four sub-watersheds in a coast re...AuthorsE.W. McKeever, S.F. Dymond, E.T. Keppeler, J.W. WagenbrennerSourceScience of The Total EnvironmentYear2024
- Southeast Asian (SEA) mangroves are globally recognized as blue carbon hotspots. Methodologies that measure mangrove soil carbon stock (SCS) are either accurate but costly (i.e., elemental analyzers), or economical but less accurate (i.e., loss-on-ignition [LOI]). Most SEA countries estimate SCS by measuring soil organic matter (OM) through the LOI method then converting it into organic carbon (OC) using a conventional conversion equation (%Corg = 0.415 * % LOI + 2.89, R2 = 0.59, n = 78) developed from Palau mangroves. The local site conditions in Palau does not reflect the wide range of envir...AuthorsSeverino G. Salmo, Sean Paul B. Manalo, Precious B. Jacob, Maria Elisa B. Gerona-Daga, Camila Frances P. Naputo, Mareah Wayne A. Maramag, Mohammad Basyuni, Frida Sidik, Richard MacKenzieKeywordsSourceCarbon Balance and Management. 19(1): 1089.Year2024
- 1. Tropical forest understories tend to be light-limited. The red-to-far-red ratio (R:FR) is a useful and reliable index of light quality and its spatial variability can influence competition between native and non-native seedlings. While per cent light transmittance has been quantified in some Hawaiian lowland wet forests (HLWF), no information exists on how the spatial distribution of understorey light varies in relation to species invasion, or if patterns of seedling regeneration and light are linked. 2. We measured the R:FR of light in the understorey to assess light quality in three HLWF...AuthorsJodie R. Rosam, Laura Warman, Rebecca Ostertag, Ryan Perroy, Susan CordellSourceJournal of Applied Ecology. 61(11): 2638-2652.Year2024
- To date, whether Bergmann’s rule, initially developed for individual species or closely related taxa, can be applied to broader taxa remains elusive. Using global distribution data for birds, mammals, reptiles, and amphibians, both species- and assemblage-based, we examined the role of species richness and related climate variables in shaping body size patterns across the globe and the Northern Hemisphere only and whether the temperature–body size relationship had a phylogenetic signal. The results show that when species in all four classes were combined, body size increased with latitude but ...AuthorsQinfeng Guo, Hong Qian, Pengcheng Liu, Jian ZhangKeywordsSourceBiological Journal of the Linnean SocietyYear2024
- Studies on plant diversity are usually based on the total number of species in a community. However, few studies have examined species richness (SR) of different plant life forms in a community along large-scale environmental gradients. Particularly, the relative importance (RIV) of different plant life forms in a community and how they vary with environmental variables are still unclear. To fill these gaps, we determined plant diversity of ephemeral plants, annual herbs, perennial herbs, and woody plants from 187 sites across drylands in China. The SR patterns of herbaceous plants, especially...AuthorsShuran Yao, Weigang Hu, Mingfei Ji, Abraham Allan Degen, Qiajun Du, Muhammad Adnan Akram, Yuan Sun, Ying Sun, Yan Deng, Longwei Dong, Haiyang Gong, Qingqing Hou, Shubin Xie, Xiaoting Wang, Jinzhi Ran, Bernhard Schmid, Qinfeng Guo, Karl J. Niklas, Jianming DengKeywordsSourcePlant DiversityYear2024