Treesearch
Displaying 4,381 - 4,390 of 64,645 Publications- Hurricanes alter forest habitat by opening the canopy and depositing fresh wood and leaves. The objectives of this study were to evaluate the effects of hurricane and drought-driven changes to forests on green litter decomposition, invertebrate communities, and nutrient mineralization over a short period (6 months) after disturbance. We used three complete replicated blocks with two canopy treatments: control and trim + detritus. Green leaves were enclosed in litterbags of three different mesh sizes to determine the effect of soil fauna of varying body sizes. Litterbags were retrieved from...AuthorsIvia I Moreno, Maria F. Barberena‐Arias, Grizelle Gonzalez, D. Jean Lodge, Sharon A. CantrellKeywordsSourceEcosphereYear2022
- The temporal dynamics of forest canopy structure are influenced by disturbances that alter vegetation quantity and distribution. While canopy structural indicators such as leaf area index (LAI), canopy cover, and canopy height have been widely studied in the context of disturbance, the post-disturbance temporal dynamics of structural complexity, which summarizes the heterogeneity of vegetation arrangement, are poorly understood. With the goal of advancing conceptual and empirical understanding of the temporal dynamics of structural complexity following disturbance, we synthesized results...AuthorsChristopher M. Gough, Jeff W. Atkins, Robert T. Fahey, Peter S. Curtis, Gil Bohrer, Brady S. Hardiman, Laura J. Hickey, Lucas E. Nave, Kerstin M. Niedermaier, Cameron Clay, Jason M. Tallant, Ben Bond-LambertyKeywordsSourceEcological IndicatorsYear2022
- In this study, we calibrated and tested the Soil Conservation Service Curve Number (SCS-CN) based Modified Sahu-Mishra-Eldo (MSME) model for predicting storm event direct runoff (Qtot) and its soil saturation coefficient α as a threshold antecedent moisture condition for partitioning into overland surface and shallow subsurface runoff components. The model calibration was performed using 36 storm events from 2008 to 2015 on a 160-ha low-gradient forested watershed (WS80) on poorly drained soil. The model was further validated without calibration using data from 2011 to 2015 on two sites...AuthorsDevendra M. Amatya, A. Walega, T.J. Callahan, A. Morrison, V. Vulava, D.R. Hitchcock, T.M. Williams, T. EppsKeywordsSourceJournal of HydrologyYear2022
- Fungi that bind leaf litter into mats and produce white-rot via degradation of lignin and other aromatic compounds influence forest nutrient cycling and soil fertility. Extent of white-rot litter mats formed by basidiomycete fungi in Puerto Rico decreased in response to disturbances—a simulated hurricane treatment executed by canopy trimming and debris addition in 2014, a drought in 2015, a treefall, and two hurricanes 10 days apart in September 2017. Percent fungal litter mat cover ranged from 0.4% after Hurricanes Irma and Maria to a high of 53% in forest with undisturbed canopy prior to...AuthorsD. Jean Lodge, Ashley Van Beusekom, Grizelle Gonzalez, Mareli Sánchez‐Julia, Sarah StankavichKeywordsSourceEcosphereYear2022
- Forestry and forest ecology research potentially lags behind related fields such as ecology, biodiversity, and conservation research in the employment of open-source software solutions, specifically the R programming language. A direct comparison of the last decade of published research literature from the top 20 ecology and forestry journals shows that R is utilized in over 30% of the literature for ecology, yet in less than 10% of the forestry literature. Open-source computing environments, such as R, Python, and Julia, increase the visibility and reproducibility of scientific research...AuthorsJeff W. Atkins, Atticus E.L. Stovall, Carlos Alberto SilvaKeywordsSourceForest Ecology and ManagementYear2022
- Peatlands contain a significant fraction of global soil carbon, but how these reservoirs will respond to the changing climate is still relatively unknown. A global picture of the variations in peat organic matter chemistry will aid our ability to gauge peatland soil response to climate. The goal of this research is to test the hypotheses that (a) peat carbohydrate content, an indicator of soil organic matter reactivity, will increase with latitude and decrease with mean annual temperatures, (b) while peat aromatic content, an indicator of recalcitrance, will vary inversely, and (c)...AuthorsBrittany A. Verbeke, Louis J. Lamit, Erik Lilleskov, Suzanne B. Hodgkins, Nathan Basiliko, Evan Kane, Roxane Andersen, Rebekka R. E. Artz, Juan C. Benavides, Brian W. Benscoter, Werner Borken, Luca Bragazza, Stefani M. Brandt, Suzanna L. Bräuer, Michael A. Carson, Dan Charman, Xin Chen, Beverley R. Clarkson, Alexander R. Cobb, Peter Convey, Jhon del Águila Pasquel, Andrea S. Enriquez, Howard Griffiths, Samantha P. Grover, Charles F. Harvey, Lorna I Harris, Christina Hazard, Dominic Hodgson, Alison M. Hoyt, John Hribljan, Jyrki Jauhiainen, Sari Juutinen, Klaus‐Holger Knorr, Randy Kolka, Mari Könönen, Tuula Larmola, Carmody K. McCalley, James McLaughlin, Tim R. Moore, Nadia Mykytczuk, Anna E. Normand, Virginia Rich, Nigel Roulet, Jessica Royles, Jasmine Rutherford, David S. Smith, Mette M. Svenning, Leho Tedersoo, Pham Q. Thu, Carl C. Trettin, Eeva‐Stiina Tuittila, Zuzana Urbanová, Ruth K. Varner, Meng Wang, Zheng Wang, Matt Warren, Magdalena M. Wiedermann, Shanay Williams, Joseph B. Yavitt, Zhi‐Guo Yu, Zicheng Yu, Jeffrey P. ChantonSourceGlobal Biogeochemical CyclesYear2022
- Rapid global vegetation greening has been observed for the past two decades, but its implications to the hydrological cycle are not well understood in many regions, including the Yangtze River Basin (YRB). This study used a remote sensing-driven ecosystem model, the Coupled Carbon and Water model, to fully examine the individual and combined hydrological effects of vegetation and climate changes through a series of modeling experiments. During the study period (2001–2018), the vegetation showed a significant greening trend with the mean annual normalized difference vegetation index...AuthorsJiehao Zhang, Yulong Zhang, Ge Sun, Conghe Song, Jiangfeng Li, Lu Hao, Ning LiuSourceWater Resources ResearchYear2022
- Butterfly bush (Buddleja sessiliflora) reaches its northern range in southeast Arizona and herbarium records document seven historic localities from Pima and Santa Cruz counties. We visited all populations between 2014 and 2018, except for one reported from the Tohono O’odham Nation to discover that five historic localities were verified to be extant, and an additional locality was discovered in 2018. A total of 22 plants were documented during this study. All surveyed populations are isolated to 6–15 m areas and contained between one and seven plants. No propagules were found, except for...AuthorsJames T. Verrier, Iris E. RoddenKeywordsSourceIn: Neary, D. G.; Gottfried, G. J., eds. Collaboration Now for the Future: IV Conference on the Biodiversity and Management of the Madrean Archipelago. Proceedings RMRS-P-79. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 488-490.Year2022
- El estado de Sonora cuenta con 126 especies de mamíferos, de las cuales, 18 especies (14.2%) corresponden a carnívoros. El presente estudio se efectuó en Rancho “La Volanta”, ubicado a 18.6 kilómetros al noreste de Bacoachi, Sonora, en la Cuenca del Río Sonora, y colindando con Sierra Los Ajos, que forma parte de la APFF Bavispe, un área natural protegida federal. Este estudio se llevó a cabo bajo la técnica de foto-trampeo, con la cual fue posible obtener información durante las 24 horas del día y sin ser invasiva para la fauna silvestre. Se instalaron 12 cámaras-trampas en 12 sitios...AuthorsSaul Abraham Amador AlcalaKeywordsSourceIn: Neary, D. G.; Gottfried, G. J., eds. Collaboration Now for the Future: IV Conference on the Biodiversity and Management of the Madrean Archipelago. Proceedings RMRS-P-79. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 492-494.Year2022
- La Reserva Jaguar del Norte (RJN) se creó en 2003 con la finalidad de proteger la población más norteña de jaguar (Panthera onca), y a otras especies igualmente importantes que habitan en el territorio de esa región. Con el propósito de generar información de la población de felinos silvestres: jaguar, puma (Puma concolor), ocelote (Leopardus pardalis), y gato montes (Lynx rufus) se realizaron monitoreos con 92 cámaras-trampa dentro de la RJN. Se obtuvo un esfuerzo de muestreo de 21,170 días-cámaras para los siete periodos en los que se dividió el estudio (enero-diciembre del 2014). Se...AuthorsSaul Abraham Amador Alcala, Francisco Javier Valenzuela Amarillas Gerardo Carreon ArroyoKeywordsSourceIn: Neary, D. G.; Gottfried, G. J., eds. Collaboration Now for the Future: IV Conference on the Biodiversity and Management of the Madrean Archipelago. Proceedings RMRS-P-79. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 303-308.Year2022