Results 51 to 60 of about 33,155 (312)

Turning a new leaf: PhenoVision provides leaf phenology data at the global scale

Applications in Plant Sciences, EarlyView.
Abstract Premise Plant phenology dictates many aspects of community function and ecosystem dynamics. Yet, global phenology data are still limited, especially in areas lacking monitoring programs. Here we present a new data resource, PhenoVision–Leaf, which extends a computer vision pipeline utilizing iNaturalist digital image vouchers to produce global‐
Erin L. Grady, Ellen G. Denny, Carrie E. Seltzer, John Deck, Daijiang Li, Russell Dinnage, Robert P. Guralnick   +6 more
wiley   +1 more source

Edge Effects in Amazon Forests: Integrating Remote Sensing and Modelling to Assess Changes in Biomass and Productivity

Remote Sensing
The tropical forests in the Amazon store large amounts of carbon and are still considered a carbon sink. There is evidence that deforestation can turn a forest landscape into a carbon source due to land use and forest degradation.
Luise Bauer, Andreas Huth, André Bogdanowski, Michael Müller, Rico Fischer   +4 more
doaj   +1 more source

Prospecting of Architectural Features Using LiDAR‐UAV Technology, Deep Neural Networks and Visualization Techniques: A Case Study in Kuélap and Cambolín (NW Peru)

Archaeological Prospection, EarlyView.
ABSTRACT High‐resolution and accurate synoptic images of terrestrial topography, even in densely forested areas, have proven valuable for archaeology by enabling the identification and characterization of relief patterns associated with ancient human activities. This study presents a novel approach that integrates digital terrain models (DTMs) obtained
Jhon A. Zabaleta‐Santisteban, Rolando Salas López, Angel J. Medina‐Medina, Katerin M. Tuesta‐Trauco, Abner S. Rivera‐Fernandez, Nerci M. Noriega‐Salazar, José A. Sánchez‐Vega, Teodoro B. Silva‐Melendez, Marlen A. Grandez‐Alberca, Jhonsy O. Silva‐López, Nilton B. Rojas‐Briceño, Manuel Oliva‐Cruz, Alexander Cotrina‐Sanchez, Elgar Barboza   +13 more
wiley   +1 more source

Evidence for strong seasonality in the carbon storage and carbon use efficiency of an Amazonian forest [PDF]

, 2014
The relative contribution of gross primary production and ecosystem respiration to seasonal changes in the net carbon flux of tropical forests remains poorly quantified by both modelling and field studies.
Benoit Burban, Burban, Benoit, Williams, Mathew, Stephane Ponton, Clement Stahl, Damien Bonal, Joana Zaragoza‐Castells, Stahl, Clement, Ponton, Stephane, Patrick Meir, Timothy Charles Hill, Lucy Rowland, Bonal, Damien, Meir, Patrick, Mathew Williams, Zaragoza-Castells, Joana, Rowland, Lucy, Williams, Mathew; id_orcid, Hill, Timothy Charles, Siebicke, Lukas, Lukas Siebicke   +20 more
core   +1 more source

Exploring the potential of ucuúba (Virola surinamensis) seed fat

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Ucuúba (Virola surinamensis) fat is an important income source for Amazonian communities. Local businesses typically process whole seeds for fat extraction; however, seed structural integrity may influence extraction efficiency and fat quality.
Juan David Marmolejo Tascón, Eduardo Macedo de Melo, Jane Mara Block, Cristiano José de Andrade, Sandra Regina Salvador Ferreira   +4 more
wiley   +1 more source

Vulnerability of Amazon forests to storm-driven tree mortality

Environmental Research Letters, 2018
Tree mortality is a key driver of forest community composition and carbon dynamics. Strong winds associated with severe convective storms are dominant natural drivers of tree mortality in the Amazon.
Robinson I Negrón-Juárez, Jennifer A Holm, Daniel Magnabosco Marra, Sami W Rifai, William J Riley, Jeffrey Q Chambers, Charles D Koven, Ryan G Knox, Megan E McGroddy, Alan V Di Vittorio, Jose Urquiza-Muñoz, Rodil Tello-Espinoza, Waldemar Alegria Muñoz, Gabriel H P M Ribeiro, Niro Higuchi   +14 more
doaj   +1 more source

Condition and fate of logged forests in the Brazilian Amazon [PDF]

Proceedings of the National Academy of Sciences, 2006
The long-term viability of a forest industry in the Amazon region of Brazil depends on the maintenance of adequate timber volume and growth in healthy forests. Using extensive high-resolution satellite analyses, we studied the forest damage caused by recent logging operations and the likelihood that logged forests would be cleared within 4
Gregory P, Asner, Eben N, Broadbent, Paulo J C, Oliveira, Michael, Keller, David E, Knapp, José N M, Silva   +5 more
openaire   +2 more sources

Zero Deforestation Commitments and Industry 4.0 Enabling Technologies: An Analysis of Their Role in Mitigating Deforestation

Business Strategy and the Environment, EarlyView.
ABSTRACT This study examines the role of corporate zero‐deforestation commitments (ZDCs) and Industry 4.0 (I4.0) enabling technologies in mitigating deforestation. Drawing on data from 110 companies included in the Forest 500 dataset, the research explores whether sustainability commitments and digital innovation influence firms' deforestation ...
Valentina Beretta, Eugenia Parodi, Celine Buschmann   +2 more
wiley   +1 more source

ESG Controversies in Global Firms: A Black Mark?

Business Strategy and the Environment, EarlyView.
ABSTRACT Despite increasing attention paid by companies to sustainability, there is still evidence of environmental, social and governance (commonly referred to as ESG) scandals. As research on this topic is scant, this paper aims to analyse the impact of ESG controversies on firms' sustainability practices, that is, ESG policies, as well as ...
Beatrice Bais, Guido Orzes, Marco Sartor
wiley   +1 more source

Variations in water use by a mature mangrove of Avicennia germinans, French Guiana [PDF]

, 2009
In the tropical intertidal zones, little is known on water uptake by mangroves. Transpiration rates are generally measured at leaf level, but few studies exist on water use at tree or stand levels.
Etienne Muller, Muller, Etienne, François Fromard, Luc Lambs, Lambs, Luc, Fromard, François   +5 more
core   +1 more source