Results 111 to 120 of about 90,560 (291)

Ecological research in the Large Scale Biosphere Atmosphere Experiment in Amazonia: A discussion of early results [PDF]

, 2004
The Large-scale Biosphere–Atmosphere Experiment in Amazonia (LBA) is a multinational, interdisciplinary research program led by Brazil. Ecological studies in LBA focus on how tropical forest conversion, regrowth, and selective logging influence carbon ...
Alencar, Ane, Asner, Gregory P, Braswell, Rob, Bustmante, Mercedes, da Rocha, Humberto, Davidson, Eric A, Dias, Pedro Silva, Feldpausch, Ted, Fernandes, Erick, Filho, Nicolau Priante, Goulden, M L, Kabat, Paval, Keller, Michael M, Kruijt, Bart, Luizao, Flavio, Markewitz, Daniel, Miller, Scott, Nobre, Antonio D, Nobre, Carlos, von Randow, Celso, Vourlitis, George   +20 more
core   +1 more source

GOVERNING THE CLOUD: Infrastructural Statecraft and the Political Ecology of Digital Expansion in Oregon

International Journal of Urban and Regional Research, EarlyView.
Abstract Oregon's wave of data center and semiconductor projects shows how cloud capitalism reorganizes resource systems and territorial governance. Examining Amazon, Google, and Intel, the article traces how fiscal incentives, utility programs, and land‐use instruments are recalibrated to secure hyperscale loads.
Justin Kollar
wiley   +1 more source

Carbon accumulation in Amazonian floodplain lakes: A significant component of Amazon budgets?

Limnology and Oceanography Letters, 2017
The Amazon floodplains cover approximately 10% of the Amazon Basin and are composed of predominantly anoxic sediments that may store large amounts of carbon. Our study combines 210Pb derived sedimentation rates from four recently analyzed sediment cores (
Luciana M. Sanders, Kathryn H. Taffs, Debra J. Stokes, Christian J. Sanders, Joseph M. Smoak, Alex Enrich‐Prast, Paul A. Macklin, Isaac R. Santos, Humberto Marotta   +8 more
doaj   +1 more source

Geometry of River Networks I: Scaling, Fluctuations, and Deviations [PDF]

, 2000
This article is the first in a series of three papers investigating the detailed geometry of river networks. Large-scale river networks mark an important class of two-dimensional branching networks, being not only of intrinsic interest but also a ...
A. E. Scheidegger, A. Maritan, A. Maritan, A. N. Strahler, A. Rinaldo, B. B. Mandelbrot, C. Cherniak, C. P. Stark, D. Dhar, D. Dhar, D. Dhar, D. G. Tarboton, D. J. Watts, D. M. Gray, D. R. Montgomery, Daniel H. Rothman, E. L. Lehman, E. Somfai, E. Tokunaga, E. Tokunaga, E. Tokunaga, G. Caldarelli, G. Huber, H. Jaeger, H. Takayasu, H. Takayasu, I. Rodríguez-Iturbe, J. E. Mueller, J. E. Mueller, J. R. Banavar, J. T. Hack, K. Sinclair, L. B. Leopold, L. Kadanoff, M. Cieplak, M. P. Mosley, M. Zamir, N. Izumi, P. Ball, P. Meakin, P. S. Dodds, P. S. Dodds, P. S. Dodds, P. S. Dodds, P. Sprent, Peter Sheridan Dodds, R. Albert, R. E. Horton, R. L. Leheny, R. Pastor-Satorras, R. Pastor-Satorras, R. Rigon, R. Rigon, S. A. Schumm, S. Kramer, S. N. Coppersmith, S. Peckham, S. S. Manna, T. R. Smith, T. Sun, T. Sun, W. Dietrich, W. H. Press   +62 more
core   +2 more sources

Species Distribution Models Reveal the Resilience of Protected Areas for Conserving an Endemic Amazonian Canid

Animal Conservation, EarlyView.
This graphical abstract illustrates the impacts of climate change on the distribution of the Amazon‐endemic canid Atelocynus microtis, highlighting projected habitat loss under future scenarios (SSP2–4.5 and SSP5–8.5). Despite substantial reductions in suitable habitat, a significant proportion remains within Protected Areas, emphasizing their critical
Isabella Soares Moura Palha da Silva, Camis Levi Ferreira Leão, Paola Vitoria Brito Pires, Marcela Guimarães Moreira Lima   +3 more
wiley   +1 more source

Geometric Morphometrics Reveal Body Shape Variation in Freshwater Shrimps of the Genus Macrobrachium Lacking a Mandibular Palp (Formerly Pseudopalaemon Sollaud, 1911) (Decapoda: Palaemonidae)

Acta Zoologica, EarlyView.
ABSTRACT Shape variation in the cephalothorax of Macrobrachium species without mandibular palp using geometric morphometrics was used as a tool to support species differentiation and propose new diagnostic characters for taxonomic identification.
Thaís Arrais Mota, Ana Carla Soares da Silva, Lucas Jhones de Santana Neves, Carlos Eduardo Rocha Duarte Alencar, Fabrício Lopes Carvalho   +4 more
wiley   +1 more source

Macrosystems ecology: Understanding ecological patterns and processes at continental scales [PDF]

, 2014
Macrosystems ecology is the study of diverse ecological phenomena at the scale of regions to continents and their interactions with phenomena at other scales.
Adrian V Rocha, Allen TFH, Andrew D Richardson, Craig A Stow, Daniel S Gruner, Gunderson LH, Heather Powell, James B Heffernan, James R Kellner, Jingfeng Xiao, John S Kominoski, Kathleen C Weathers, Lauren B Buckley, Lauren E Koenig, Liu J, Michael J Angilletta, O'Neill RV, Patricia A Soranno, Peters DPC, Pickett STA, Redman CL, Rodrigo Vargas, Simon J Goring, Tamara K Harms, Tim H Keitt, Weathers KC, William H McDowell   +26 more
core   +2 more sources

Fine‐scale patterns of genetic structure in three species of forest birds reveal dynamic Pleistocene history within an Amazonian interfluve

Ibis, EarlyView.
Phylogeographical studies of Amazonian birds have revealed large intraspecific diversity, even within recognized areas of endemism. To understand the origin and organization of Amazonian diversity, including the influence of current and historical landscapes, we need to evaluate fine‐scale patterns of genetic diversity in relation to detailed ...
Affonso Henrique Nascimento de Souza, Camila Duarte Ritter, João Marcos Guimarães Capurucho, Juliana Menger, Camila Cherem Ribas   +4 more
wiley   +1 more source

Forest Biological Resources in the Amazon Basin

, 2004
The Amazon region holds the world’s largest area of tropical rain forest which was settled by the first humans during the Late Pleistocene. A strong anthropogenic impact began in the 1960s when large areas of the tropical forest were cleared. To protect this ecosystem, sustainable utilization of its biological resources is urgently needed.
Kreibich, H., Kern, J.
openaire   +5 more sources

The potential role of captive collared peccary (Tayassu tajacu) as a leptospirosis reservoir in the Peruvian Amazon [PDF]

, 2006
A serological survey was conducted in a collared peccary farm in the Peruvian Amazon to investigate variations in leptospiral seroprevalence over a period of 18 months.
Céspedes, Manuel J., Galvez, Hugo A., Jori, Ferran, Mayor, Pedro, Mendoza, Patricia   +4 more
core