Results 41 to 50 of about 30,612 (224)

Trellis-forming stems of a tropical liana Condylocarpon guianense (Apocynaceae): A plant-made safety net constructed by simple “start-stop” development

Frontiers in Plant Science, 2022
Tropical vines and lianas have evolved mechanisms to avoid mechanical damage during their climbing life histories. We explore the mechanical properties and stem development of a tropical climber that develops trellises in tropical rain forest canopies ...
Patricia Soffiatti, Emilien Fort, Christine Heinz, Nick P. Rowe   +3 more
doaj   +1 more source

Using reflectance spectra and Pl@ntNet to identify herbarium specimens: a case study with Lithocarpus

New Phytologist, EarlyView.
Summary The digitisation of plant collections is bringing large quantities of information into accessible electronic databases. However, in recent decades, traditional taxonomic work in collections has declined, meaning that more specimens are only determined to family or genus, particularly when lacking key identification structures.
Barbara M. Neto‐Bradley, Pierre Bonnet, Hervé Goëau, Alexis Joly, Jeannine Cavender‐Bares, David A. Coomes   +5 more
wiley   +1 more source

Evolution of Plant Architecture, Functional Diversification and Divergent Evolution in the Genus Atractocarpus (Rubiaceae) for New Caledonia

Frontiers in Plant Science, 2018
The diversification of ecological roles and related adaptations in closely related species within a lineage is one of the most important processes linking plant evolution and ecology.
David Bruy, David Bruy, Tom Hattermann, Tom Hattermann, Laure Barrabé, Arnaud Mouly, Arnaud Mouly, Daniel Barthélémy, Daniel Barthélémy, Sandrine Isnard, Sandrine Isnard   +10 more
doaj   +1 more source

Hydrolaetare schmidti (Cochran & Goin, 1959): new records for Amapá state, eastern Amazon and a geographic distribution map [PDF]

Check List, 2019
Hydrolaetare schmidti (Cochran & Goin, 1959) is 1 of 3 species of a genus that has a disjunctive distribution in the Amazon basin and is considered to be rare. Herein, we present the new records of H. schmidti from Amapá State,
Janaina Reis Ferreira Lima, Jucivaldo Dias Lima, Jackson Cleiton Sousa, Silvia Helena de Oliveira, Carlos Eduardo Costa-Campos   +4 more
doaj   +3 more sources

Approximation Complexity of Maximum A Posteriori Inference in Sum-Product Networks [PDF]

, 2017
We discuss the computational complexity of approximating maximum a posteriori inference in sum-product networks. We first show NP-hardness in trees of height two by a reduction from maximum independent set; this implies non-approximability within a ...
Conaty, Diarmaid, de Campos, Cassio P., Mauá, Denis D.   +2 more
core   +1 more source

Mercury anomalies associated with three extinction events (Capitanian Crisis, Latest Permian Extinction and the Smithian/Spathian Extinction) in NW Pangea [PDF]

, 2015
Copyright © Cambridge University Press 2015. Strata of Permian - Early Triassic age that include a record of three major extinction events (Capitanian Crisis, Latest Permian Extinction and the Smithian/Spathian Extinction) were examined at the Festningen
Beauchamp, Benoit, Bond, David P.G., Grasby, Stephen E., Sanei, Hamed, Wignall, Paul B.   +4 more
core   +1 more source

Digitised herbarium specimen data reveal a climate change‐related trend to an earlier, shorter Canadian Arctic flowering season, and phylogenetic signal in Arctic flowering times

New Phytologist, EarlyView.
Summary The Arctic is experiencing some of the world's most rapid changes in climate. Arctic plant flowering time responses to climate change are understudied. Globally, conflicting evidence exists on whether flowering time responses to temperature are evolutionarily conserved.
Zoe A. Panchen, Jennifer Doubt, Jeffery M. Saarela, Heather M. Kharouba   +3 more
wiley   +1 more source

Exploring the link between spectral variance and upper canopy taxonomic diversity in a tropical forest: influence of spectral processing and feature selection

Remote Sensing in Ecology and Conservation, 2023
The rapid loss of biodiversity in tropical rainforests calls for new remote sensing approaches capable of providing rapid estimates of biodiversity over large areas.
Colette Badourdine, Jean‐Baptiste Féret, Raphaël Pélissier, Grégoire Vincent   +3 more
doaj   +1 more source

Ecological drivers and phylogenetic patterns of leaf minimum conductance variability in vascular plants

New Phytologist, EarlyView.
Summary Stomatal closure prevents significant water losses during drought events. Yet, leaves are not perfectly hermetic and dehydration ensues through residual water losses, known as minimum conductance (gmin), which is highly relevant since it informs on the water depletion dynamics under stress.
Santiago Trueba, Régis Burlett, Xavier Bouteiller, Thibaut Burneau, Guillaume Forget, Maximilien Larter, Daniela N'Do, Camille Ziegler, Sylvain Delzon   +8 more
wiley   +1 more source

Local food networks and the change of the agrofood system [PDF]

, 2008
Can alternative local food networks, through the relocalization of production and consumption and the higher proportion of organic practices, bring significant changes in the agrofood system?
Lamine, Dr. Claire
core