Filtering by Subject: Biology

Mars Dichotomy: Prospects for human life on Mars

María Angélica Leal Leal, David Tovar, Jimena Sánchez Nieves, María Trinidad Ceferino Ramírez, Ingela Carolina Ríos Jiménez, Marisol Leal Leal, Rosa Alejandra Reyes Quiñonez, Iván Manjarrés Cadena, Aura Elizabeth Quiñonez Toro, Francisco José Reyes Torres, María Camila Orozco Martínez, Yih Wen Fung, Carlos Humberto Barreto, Luz Marina Melgarejo Muñoz, Sergio Esteban Matoma Rivas, Daniel Guillermo Perico Sánchez, Andrés Tovar, Mónica Alexandra Antolínez Rodríguez, Julián Alexander Arias Calvo, Estefani Martínez Tapias, Laura Natalia Ballesteros Santana, Marha Alejandra Franco Prada, Adrián Arturo Rodríguez Rubiano, Santiago Páez Avendaño, Santiago Monsalve Silva, Sebastian Castaño Ramírez, Juan Diego Parra Mosquera, Andrés Castaño, Aixa Marín Orozco, Alejandro Niño García, Carlos Geovanny García Castro, Juan Manuel Jiménez Vergara, Camilo Andrés Escobar Tarazona, Daniel Felipe Ramírez Díaz, Lorena Bastidas Gómez, Iván Alexis Nocua Benitez, Oscar Fernando Barriga Romero, Natalia Barreto Escobar, Camila Andrea Gahona, Juan Sebastián Rodríguez Camero, Daniel Ruyardi Restrepo Barbosa, Yulied Porras Ramírez, Andrés Felipe Parada Valle, Esmeralda Laverde, Melissa Ocampo Avendaño, María Valentina Vega Caro, Liliana Figueroa del Castillo

Published: 2021-03-04
Subjects: Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Medical Sciences, Other Astrophysics and Astronomy, Other Food Science, Planetary Geology, Planetary Sciences

Within the framework of the Mars City State Contest 2020 of The Mars Society, from Colombia, with an interdisciplinary and academic perspective, it was sought to give a perspective of solutions and answers to the challenges of possible human life on Mars. Thus, the document initially addresses a forward-looking prologue, an introduction to the concept of the proposed state, taking as a starting [...]

NIRvP: a robust structural proxy for sun-induced chlorophyll fluorescence and photosynthesis across scales

Benjamin Dechant, Youngryel Ryu, Grayson Badgley, Philipp Köhler, Uwe Rascher, Mirco Migliavacca, Yongguang Zhang, Giulia Tagliabue, Kaiyu Guan, Micol Rossini, Yves Goulas, Yelu Zeng, Christian Frankenberg, Joseph A. Berry

Published: 2020-12-31
Subjects: Agriculture, Biology, Environmental Monitoring, Environmental Sciences, Plant Sciences

Sun-induced chlorophyll fluorescence (SIF) is a promising new tool for remotely estimating photosynthesis. However, the degree to which incoming sunlight and the structure of the canopy rather than leaf physiology contribute to SIF variations is still not well characterized. Here we demonstrate that the canopy structure-related near-infrared reflectance of vegetation multiplied by incoming [...]

The Baltic TRANSCOAST approach – investigating shallow coasts as terrestrial-marine interface of water and matter fluxes

Manon Janssen, Michael E Böttcher, Martin Brede, Hans Burchardt, Stefan Forster, Ulf Karsten, Peter Leinweber, Bernd Lennartz, Gregor Rehder, Hendrik Schubert

Published: 2019-07-16
Subjects: Biogeochemistry, Biology, Earth Sciences, Environmental Monitoring, Environmental Sciences, Hydrology, Life Sciences, Marine Biology, Oceanography and Atmospheric Sciences and Meteorology, Other Oceanography and Atmospheric Sciences and Meteorology, Other Plant Sciences, Physical Sciences and Mathematics, Plant Sciences, Soil Science

In Baltic TRANSCOAST we study the physical, biogeochemical, and biological processes at the land-ocean interface. The coastal zone is heavily impacted by various human activities as well as by geomorphological and climatic processes – on both the land and the sea side. Land-sea interactions at low lying coastal areas that are often dominated by peatlands, and are a common feature along the Baltic [...]

Wind tunnel tests inform Ammophila planting spacing for dune management

Bianca Charbonneau, Brenda B Casper

Published: 2018-09-24
Subjects: Biology, Earth Sciences, Environmental Sciences, Geology, Geomorphology, Life Sciences, Natural Resources Management and Policy, Physical Sciences and Mathematics, Sedimentology

Coastal dunes are invaluable natural resources that bu er upland areas. Vegetation is key in dune development and stabilization. Dunes form with sufficient wind, sand source, and obstruction; plants are the ideal obstruction. Storms o en erode foredunes and coastal managers replant vegetation to re-establish the necessary obstruction for sand accretion and dune growth. We used a wind tunnel to [...]

Reactionary fence installation for post-Superstorm Sandy dune recovery

Bianca Charbonneau, John P. Wnek

Published: 2018-09-24
Subjects: Biology, Earth Sciences, Environmental Monitoring, Environmental Sciences, Life Sciences, Natural Resources and Conservation, Physical Sciences and Mathematics, Sedimentology, Sustainability

Dunes are invaluable to coastal areas as dynamic buffers to erosion during high tides and storms, but do not accrue naturally in developed areas without assistance. Wood paling fencing is commonly used to cultivate dune development and thereby increase the protection afforded to coastal areas. In 2012, Superstorm Sandy devastated the mid-Atlantic, especially New Jersey where many areas are still [...]

Fluid inclusions from the deep Dead Sea sediment provide new insights on Holocene extreme microbial life

Camille Thomas, Daniel Ariztegui

Published: 2018-07-24
Subjects: Biology, Earth Sciences, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Microbiology, Paleobiology, Physical Sciences and Mathematics

The Dead Sea Deep Drilling Project allowed to retrieve a continuous sedimentary record spanning the two last glacial cycles. This unique archive, in such an extreme environment, has allowed for the development of new proxies and the refinement of already available paleoenvironmental studies. In particular, the interaction of the lake and sediment biosphere with elements and minerals that [...]

What caused Earths largest mass extinction event? New evidence from the Permian-Triassic boundary in northeastern Utah

Benjamin Burger

Published: 2018-02-26
Subjects: Biogeochemistry, Biology, Chemistry, Earth Sciences, Environmental Chemistry, Environmental Indicators and Impact Assessment, Environmental Sciences, Geology, Life Sciences, Paleobiology, Paleontology, Physical Sciences and Mathematics, Sedimentology

The discovery of a Permian-Triassic boundary section in northeastern Utah reveals a detailed record of events that led to one of the greatest mass extinctions on the planet. From 83% to 97% of the species living on the planet went extinct during this relatively short interval of geological time, which defines the major geological boundary between the Paleozoic and Mesozoic Eras. The cause and [...]

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