Results 11 to 20 of about 1,393 (134)

Flaws in the methodologies for organic carbon analysis in seagrass blue carbon soils

open access: yesLimnology and Oceanography: Methods, Volume 21, Issue 12, Page 814-827, December 2023., 2023
Abstract The ability to accurately measure organic carbon (OC) in marine sediments or soils is overall taken for granted in scientific communities, yet this seemingly mundane task remains a methodological challenge when the soil matrix contains calcium carbonate (CaCO3), creating inaccuracies in Blue Carbon estimates.
Oscar Serrano   +5 more
wiley   +1 more source

Past human‐induced ecological legacies as a driver of modern Amazonian resilience

open access: yesPeople and Nature, Volume 5, Issue 5, Page 1415-1429, October 2023., 2023
Abstract People have modified landscapes throughout the Holocene (the last c. 11,700 years) by modifying soils, burning forests, cultivating and domesticating plants, and directly and indirectly enriched and depleted plant abundances. These activities also took place in Amazonia, which is the largest contiguous piece of rainforest in the world, and for
Crystal N. H. McMichael   +3 more
wiley   +1 more source

Paleoflora y Paleovegetación Ibérica III: Holoceno

open access: yes, 2022
COMPLETE REFERENCE: Carrión JS, Munuera M, Ochando J, López-Sáez JA, Casas-Gallego M, González-Sampériz P, Badal E, Pérez-Díaz S, López-Merino L, Burjachs F, Abel-Schaad D, Jiménez-Moreno G, Morales-Molino C, Peña-Chocarro L, Carrión-Marco Y, Barrón E, Postigo-Mijarra JM, Gil-García MJ, Ruiz-Zapata B, Luelmo R, Uzquiano P, García-Antón M, Rubiales JM ...
Carrión, José   +99 more
openaire   +4 more sources

Decline of seagrass (Posidonia oceanica) production over two decades in the face of warming of the Eastern Mediterranean Sea

open access: yesNew Phytologist, Volume 239, Issue 6, Page 2126-2137, September 2023., 2023
Summary The response of Posidonia oceanica meadows to global warming of the Eastern Mediterranean Sea, where the increase in sea surface temperature (SST) is particularly severe, is poorly investigated. Here, we reconstructed the long‐term P. oceanica production in 60 meadows along the Greek Seas over two decades (1997–2018), using lepidochronology. We
Victoria Litsi‐Mizan   +5 more
wiley   +1 more source

Seagrass Posidonia escarpments support high diversity and biomass of rocky reef fishes

open access: yesEcosphere, Volume 14, Issue 6, June 2023., 2023
Abstract Although seagrass meadows form a relatively homogenous habitat, escarpments, which form three‐dimensional structures and originate from the erosion of seagrass peat, can provide important habitat for reef fishes. Here, we compare fish assemblages and habitat structural complexity among seagrass Posidonia australis escarpments and canopies, as ...
Oscar Serrano   +6 more
wiley   +1 more source

Methane Emissions in Seagrass Meadows as a Small Offset to Carbon Sequestration

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 128, Issue 6, June 2023., 2023
Abstract Seagrass meadows are effective carbon sinks due to high primary production and sequestration in sediments. However, methane (CH4) emissions can partially counteract their carbon sink capacity. Here, we measured diffusive sediment‐water and sea‐air CO2 and CH4 fluxes in a coastal embayment dominated by Posidonia oceanica in the Mediterranean ...
Yvonne Y. Y. Yau   +8 more
wiley   +1 more source

Species Traits and Geomorphic Setting as Drivers of Global Soil Carbon Stocks in Seagrass Meadows

open access: yesGlobal Biogeochemical Cycles, Volume 36, Issue 10, October 2022., 2022
Abstract Our knowledge of the factors that can influence the stock of organic carbon (OC) that is stored in the soil of seagrass meadows is evolving, and several causal effects have been used to explain the variation of stocks observed at local to national scales. To gain a global‐scale appreciation of the drivers that cause variation in soil OC stocks,
H. Kennedy   +17 more
wiley   +1 more source

COPROLITOS DE CAMÉLIDOS DEL HOLOCENO COMO INDICADORES PALEOAMBIENTALES [PDF]

open access: yesMagallania (Punta Arenas), 2010
RESUMENEl estudio de coprolitos permite abordar aspectos ecologicos y culturales de poblaciones pasadas, como reconstrucciones del paleoambiente, de paleodietas, inferir estacionalidad en el uso de los recursos y situaciones de parasitismo. El objetivo de este trabajo es reconocer el aporte del analisis polinico de coprolitos para las reconstrucciones ...
VELÁZQUEZ, NADIA J   +3 more
openaire   +3 more sources

Sigmodontinos (rodentia, muridae) del holoceno inferior de Bolivia

open access: yesSpanish Journal of Palaeontology, 2022
Se estudió una pequeña colección de muroideos (Rodentia, Muridae) fósiles provenientes del Miembro Media de la Formación Nuapua (Holoceno inferior) exhumada en la Quebrada de Nuapua (20° 52' S; 63 ° 04' O; 500 m sobre el nivel del mar), departamento Chuquisaca, Bolivia.
Ulyses F.J. Pardiñas   +1 more
openaire   +2 more sources

Tecnología lítica de cazadores y pastores andinos: cambios y continuidades en la explotación de recursos líticos durante el Holoceno en el NO de San Juan

open access: yesRevista del Museo de Antropologia, 2017
En este trabajo se analizan y comparan aspectos de la organización tecnológica de grupos cazadores-recolectores, transicionales y pastores que ocuparon los ambientes de altura del NO de San Juan.
Gustavo Fernando Lucero   +2 more
doaj   +1 more source

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