Results 81 to 90 of about 19,149 (228)

Emergent global patterns of ecosystem structure and function from a mechanistic general ecosystem model [PDF]

, 2014
Anthropogenic activities are causing widespread degradation of ecosystems worldwide, threatening the ecosystem services upon which all human life depends.
A Friedlander, A Hardisty, B Cho, B Collen, B-E Sæther, BJ McGill, C Mora, C Ward-Paige, CA Deutsch, CB Field, CD Thomas, CEL Ferreira, CH Sekercioglu, CM Duarte, CR McClain, D Griffiths, D Policansky, D Post, D Yates, Derek P. Tittensor, DG Jenkins, Drew W. Purves, DW Purves, E Jeppesen, E Macpherson, E Odum, E Siemann, EA Fulton, FS Chapin, G Krinner, GA Kaufman, GM Mace, H Cyr, H Stibor, HR Peinetti, J Cebrian, J Chase, J Gasol, J Merilä, JA Carton, JE Cohen, JH Brown, JL Frangi, JM Sunday, Jon Hutton, JP Rodríguez, JS Millar, Jörn P. W. Scharlemann, K Rose, KA Nagy, KA Schubert, KE Jones, KR Buck, L Tremblay-Boyer, LLM Fedigan, LW Oring, M Behrenfeld, M González-Suárez, Matthew J. Smith, MBJ Harfoot, ME Power, Michael B. J. Harfoot, Michel Loreau, MJ Coe, MJ Morgan, MJ Smith, MJ Vander Zanden, MK Litvak, MR Evans, MW McCoy, N Blakley, N Loeuille, NG Hairston, O Krüger, P Abrams, P Del Giorgio, PK Holland, R Alkemade, R Bustamante, R Gentile, R Meek, R Shine, R Shine, RE Ricklefs, RE Ricklefs, RJ Williams, RJ Williams, RW Sheldon, RW Wilson, S Díaz, S Fretwell, S Jain, S Jennings, S Jennings, S Meiri, S Sitch, SA Sandin, SD Pletcher, Stephen Emmott, T Newbold, T Sousa, Tim Newbold, TJ Case, TJ Webb, U Brose, V Christensen, Vassily Lyutsarev, W Sprules, X Irigoien, Y-J Shin   +109 more
core   +4 more sources

Functional homogenization of terrestrial mammals outside protected areas in the Hengduan Mountains, China

Conservation Biology, EarlyView.
Abstract Despite the crucial role of human impacts on biodiversity loss, many assessments of this loss focus on single metrics, such as species richness, and overlook the multidimensional effects of human activities. Because of its importance to ecosystem functioning, we investigated the functional diversity of medium‐ and large‐sized mammal ...
Xueyou Li, Wenqiang Hu, Kenneth Otieno Onditi, Quan Li, Zhechang Hu, Ru Bai, Yang Liu, Hongjiao Wang, Xuelong Jiang   +8 more
wiley   +1 more source

Quantifying the Impacts of Anthropogenic Activities and Climate Variations on Vegetation Productivity Changes in China from 1985 to 2015

Remote Sensing, 2020
Accurate assessment of vegetation dynamics provides important information for ecosystem management. Anthropogenic activities and climate variations are the major factors that primarily influence vegetation ecosystems.
Shahid Naeem, Yongqiang Zhang, Jing Tian, Faisal Mueen Qamer, Aamir Latif, Pranesh Kumar Paul   +5 more
doaj   +1 more source

Satellite-derived increases in net primary productivity across North America, 1982-1998 [PDF]

, 2002
We used a new 17‐year, high spatial resolution satellite record and a carbon cycle model to explore how changing net primary productivity (NPP) contributed to a proposed carbon (C) sink in North America.
Asner, Gregory P., Birdsey, Richard, Field, Christopher, Hicke, Jeffrey A., Holland, Elisabeth, Jenkins, Jennifer C., Los, Sietse, Randerson, James T., Tucker, Compton   +8 more
core  

The Efficiency of Maize and Common Bean Intercropping Using Economic, Competitive, and Biological Indices for a Sustainable Production

Legume Science, Volume 8, Issue 1, March 2026.
ABSTRACT Intercropping is an effective method for resource utilization that typically enhances crop yields compared with monoculture. This study was conducted using split plot in a randomized complete block design with three replications over the 2022–2023 years.
Ebrahim Zolfagari Kotbehsara, Peyman Sharifi, Mohammad Hossein Ansari   +2 more
wiley   +1 more source

Potential Impacts of Climate Interventions on Marine Ecosystems

Reviews of Geophysics, Volume 64, Issue 1, March 2026.
Abstract Rising global temperatures pose significant risks to marine ecosystems, biodiversity, and fisheries. Recent comprehensive assessments suggest that large‐scale mitigation efforts to limit warming are falling short, and all feasible future climate projections, including those that represent optimistic emissions reductions, exceed the Paris ...
Kelsey E. Roberts, Tyler Rohr, Morgan R. Raven, Michael S. Diamond, Daniele Visioni, Ben Kravitz, Ryan Heneghan, Colleen M. Petrik, Daniele Bianchi, Kelly Ortega‐Cisneros, Monica A. Morrison, Vanessa van Heerden, Nicola A. Wiseman, Gouri Anil, Zachary J. Cannizzo, Marta Coll, Joshua Coupe, Ryan Freedman, Kristen Krumhardt, Lester Kwiatkowski, Nicole S. Lovenduski, Jessica Y. Luo, Holly C. Olivarez, Alan Robock, Jeroen Steenbeek, Cheryl S. Harrison   +25 more
wiley   +1 more source

Forest Stand Structure and Primary Production in relation to Ecosystem Development, Disturbance, and Canopy Composition [PDF]

, 2016
Temperate forests are complex ecosystems that sequester carbon (C) in biomass. C storage is related to ecosystem-scale forest structure, changing over succession, disturbance, and with community composition.
Scheuermann, Cynthia M
core   +1 more source

Equilibrium responses of global net primary production and carbon storage to doubled atmospheric carbon dioxide: sensitivity to changes in vegetation nitrogen concentration [PDF]

, 1997
We ran the terrestrial ecosystem model (TEM) for the globe at 0.5° resolution for atmospheric CO2 concentrations of 340 and 680 parts per million by volume (ppmv) to evaluate global and regional responses of net primary production (NPP) and carbon ...
A. David McGuire, Aber, Agren, Annette L. Schloss, Auchmoody, Bartholomew, Berrien Moore, Bhaumik, Binkley, Ceulemans, Chapin, Chapin, Chapin, Charles J. Vorosmarty, Daubenmire, David W. Kicklighter, Davidson, Dodd, Eamus, Ellis, Evans, Evans, Farquhar, Farquhar, Field, Gulmon, Gunderson, Harrison, Houghton, Houghton, Houghton, Hunt, Idso, Ino, Intergovernmental Panel on Climate Change Working Group I (IPCC WGI), Jenny, Jerry M. Melillo, John Helfrich, Kicklighter, Kimball, Kimball, Lajtha, Luo, McGuire, McGuire, McGuire, McGuire, McGuire, Melillo, Melillo, Melillo, Melillo, Melillo, Melillo, Melillo, Melillo, Miller, Miller, Mitchell, Mitchell, Mooney, Myers, Pan, Pan, Pastor, Pettersson, Poorter, Raich, Risser, Safford, Sage, Sage, Sage, Sarmiento, Schimel, Schlesinger, Shaver, Shaver, Shaver, Sollins, Sommers, Stott, Trumbore, Van Cleve, Van Veen, VEMAP Members, Vitousek, Vitousek, Vitousek, Vorosmarty, Watson, Watson, Wong, Wullschleger, Wullschleger, Xiangming Xiao, Xiao, Yude Pan   +97 more
core   +2 more sources

Ring Formation in Sesquiterpene Synthesis: Biomimetic vs. Non‐Biomimetic Strategies

European Journal of Organic Chemistry, Volume 29, Issue 5, 7 February 2026.
A short review of cyclase enzyme‐mediated ring formation in sesquiterpene biosynthesis is presented as a prelude to six case studies examining the merits and demerits of biomimetic vs. non‐biomimetic strategies for carbocyclisation in the total synthesis of this iconic natural product class.
Bohan Lin, Chen Dai, Alan C. Spivey
wiley   +1 more source

Climate change impacts on net primary production (NPP) and export production (EP) regulated by increasing stratification and phytoplankton community structure in the CMIP5 models [PDF]

Biogeosciences, 2015
Abstract. We examine climate change impacts on net primary production (NPP) and export production (sinking particulate flux; EP) with simulations from nine Earth system models (ESMs) performed in the framework of the fifth phase of the Coupled Model Intercomparison Project (CMIP5). Global NPP and EP are reduced by the end of the century for the intense
W. Fu, J. Randerson, J. K. Moore
openaire   +5 more sources