Results 11 to 20 of about 124 (102)

A Roadmap for Using Hybridisation Capture-Based Target Enrichment of Ancient Environmental DNA in Palaeoecology. [PDF]

Mol Ecol Resour
ABSTRACT Recovering ancient DNA from environmental samples is transforming the way we understand historical ecosystems. While high‐throughput sequencing of the total DNA in environmental samples (shotgun metagenomic sequencing) reveals the taxonomic contents of these samples, the genetic signals of some taxa (e.g., eukaryotes) can be weak compared to ...
Foster NR, Holman LE, Armbrecht L, Courtin J, Jensen T, Pedersen MW, Schreiber L, Schroeder H, Seersholm FV, Zampirolo G, Bohmann K, Zimmermann HH.   +11 more
europepmc   +2 more sources

Vanishing small glaciers in the Cordillera Real, Bolivia (1998–2024)

Annals of Glaciology
Tropical glaciers in the Cordillera Real (Bolivia) are rapidly retreating. In the early 2000s, it was predicted that many of its small glaciers (
Andrew G.O. Malone, Giuliana Adrianzen, Eleanor T. Broglie   +2 more
doaj   +1 more source

Columnanidus calitzdorpensis ichnogen. ichnosp. nov: A new Middle Pleistocene subterranean termite trace fossil from South Africa

Journal of Quaternary Science, Volume 41, Issue 6, Page 933-949, August 2026.
ABSTRACT Termites are landscape geo‐engineers whose nesting activities substantially modify the physical and chemical properties of soils. Fossilised termite nests commonly constitute the only identifiable evidence of ancient termite activity and represent valuable trace fossil archives for reconstructing past environments.
Miengah Abrahams, Robert A. Muir, Jorge F. Genise, John E. Almond, Gcinamahlubi Hadebe, John C. Hellstrom, Rabia Jacobs, Chris Harris   +7 more
wiley   +1 more source

Investigating the past, present and future responses of Shallap and Zongo Glaciers, Tropical Andes, to the El Niño Southern Oscillation

Journal of Glaciology
Tropical Andean glaciers are highly sensitive to climate change and are impacted by the El Niño Southern Oscillation (ENSO). However, glaciological data are scarce, meaning that there are substantial knowledge gaps in the response of Andean glaciers to ...
Alasdair Richardson, Rachel Carr, Simon Cook   +2 more
doaj   +1 more source

Glacier Mass Balance Modeling Using a Long Short‐Term Memory Network

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract Glacier mass balance (MB) is a key indicator of climate change and a central driver of glacier evolution, yet most glaciers worldwide lack long‐term in situ measurements. For estimating glacier MB, data‐driven models provide a complementary alternative to traditional numerical approaches by learning empirical relationships between climate ...
Marijn van der Meer, Harry Zekollari, Alban Gossard, Kamilla Hauknes Sjursen, Jordi Bolibar, Matthias Huss, Daniel Farinotti   +6 more
wiley   +1 more source

An updated view on the long‐term survival and significance of marine protist resting stages

Limnology and Oceanography Letters, Volume 11, Issue 4, July 2026.
Abstract Resting stages of protists act as biological time capsules when buried in marine sediments, preserving viable cells that enable the study of ecological and evolutionary processes across timescales. Recent studies have extended the known viability in diatoms to several millennia and in dinoflagellates to over a century, while also identifying ...
Sanne Mariël Moedt, Sofia Ribeiro
wiley   +1 more source

Glacier shrinkage in the Peruvian and Bolivian Andes from a deep learning-based multi-temporal inventory (2016–2024)

Annals of Glaciology
Glaciers in the Tropical Andes have experienced a significant and accelerated decrease over the last few decades, primarily driven by climate change. This study aims to generate updated and temporally consistent yearly glacier outlines for the Tropical ...
Diego Pacheco-Ferrada, Thorsten Seehaus
doaj   +1 more source

“Cold Tropics”: Permafrost Existence and Thickness on Eastern Nevado Coropuna (Southern Peruvian Andes) Revealed by Ground‐Penetrating Radar and Geoelectrical Soundings

Permafrost and Periglacial Processes, Volume 37, Issue 3, Page 517-534, July/September 2026.
ABSTRACT The existence of permafrost was explored at tropical latitude on Nevado Coropuna (southern Peruvian Andes) using a combination of ground‐penetrating radar (GPR) and vertical electrical sounding (VES) in order to strengthen the mutual validation of data processing and interpretation.
Velnia Chacca, Ramón Pellitero, Adriano Ribolini, José Úbeda, Luis Mariano del Río, Ricardo Vila, Oscar Vilca   +6 more
wiley   +1 more source

Antarctic Snowfall Patterns and Trends: A Regional Analysis Across Multiple Data Sets

Earth and Space Science, Volume 13, Issue 7, July 2026.
Abstract Snowfall is the dominant positive component of the Antarctic surface mass balance (SMB) and a key factor regulating global sea level. However, substantial uncertainty remains in its spatial distribution and long‐term variability due to sparse in situ observations and retrieval challenges over polar ice sheets.
Valerie Song, Yuekui Yang, Surendra Bhatta   +2 more
wiley   +1 more source

Glaciological studies in Mexico, 60 years of academic work: A summary

Revista Mexicana de Ciencias Geológicas
Glaciers have played a very important role in controlling the climate during most of the geologic history of our planet Earth. Of course, the glaciers have always been at higher latitudes (north and south), and some on high-altitude mountains.
Alejandro Carrillo-Chavez, Hugo Delgado-Granados, Lorenzo Vazquez-Selem, Guillermo Ontiveros-González, Jorge Cortes-Ramos, Victor Soto, Carolina Muñoz-Torres, Daniela Kristell Calvo-Ramos   +7 more
doaj   +1 more source