Results 121 to 130 of about 333,287 (241)

Phosphate Enrichment From Wildlife Inputs Shapes the Distribution and Pigmentation of Green and Red Snow Algae Along the West Antarctic Peninsula

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 10, October 2026.
Abstract Snow algae darken snow through biomass accumulation and pigmentation, yet nutrient controls on algal abundance and pigment composition in Antarctic snowfields remain poorly constrained. Along the West Antarctic Peninsula (WAP), coastal snowfields receive nutrient inputs from marine and wildlife sources that may influence bloom development.
Elise L. Ryan, Alia L. Khan
wiley   +1 more source

On the Fidelity of Oxygen Isotope‐Based Sea Level Reconstructions: A Case Study of Marine Isotope Stage 3

Paleoceanography and Paleoclimatology, Volume 41, Issue 10, October 2026.
Abstract Although foraminiferal oxygen isotope records (δ18OF) have long been used to develop time‐continuous estimates of past global ice volume, growing evidence indicates that the ice volume and temperature contributions to δ18OF diverge considerably over the last glacial cycle.
Tamara Pico, Jesse R. Farmer, Sarah Shackleton, Robert K. Poirier, Bradley R. Markle, Lorraine E. Lisiecki   +5 more
wiley   +1 more source

THE ANTARCTIC FOSSIL VERTEBRATE COLLECTION OF THE MUSEO DE LA PLATA: HISTORICAL PERSPECTIVE OF FOUR DECADES OF EARTH SCIENCES INVESTIGATIONS IN ANTARCTICA

Publicación Electrónica de la Asociación Paleontológica Argentina
The Museo de La Plata (MLP, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata) houses Antarctica’s largest fossil vertebrate collection.
Marcelo Reguero, Carolina Acosta Hospitaleche, Jose Patricio O'Gorman, Juan José Moly   +3 more
doaj   +1 more source

Shift Towards Syndiniales Prevalence in Protist Communities During a Marine Heatwave

Environmental Microbiology Reports, Volume 18, Issue 5, October 2026.
During a marine heatwave, protist diversity decreased and communities became more homogeneous. The parasitic dinoflagellate Syndiniales became the most dominant group in Subtropical Waters and the Southland Front. Since host‐parasitoid interactions are important in carbon and nutrient cycling, they should be considered when studying heatwave impacts on
Hanneloor Heynderickx, Ro Allen, Tina C. Summerfield, Kim Currie, Linn J. Hoffmann   +4 more
wiley   +1 more source

Geolocation reveals wintering sites of near‐extinct Caucasian breeding sea duck

Ibis, Volume 168, Issue 4, Page 1731-1738, October 2026.
We obtained 14 sets of full annual cycle geolocator tracks from 13 individual nesting female Velvet Scoter Melanitta fusca from the relict Caucasian population at their last remaining breeding site, Lake Tabatskuri, Georgia. Results showed that females wintered at widespread discrete localities in Ukraine, around the coasts of the Crimean Peninsula and
Nika Paposhvili, Heidi Maria Thomsen, Ib Krag Petersen, Anthony D. Fox   +3 more
wiley   +1 more source

Estimating the distribution of demand for Antarctic krill (Euphauisa superba) from land-based predators at South Georgia [PDF]

, 2007
South Georgia is renowned for the abundance of Antarctic krill (Euphausia superba) and a range of krill predators. Variability in krill availability at a range of scales, and the consequences of this for predator-prey interactions, mean that quantifying ...
Swarbrick, Matthew Lewis
core   +1 more source

A Time‐Calibrated Phylogeny and Historical Biogeography of Leptoceridae (Trichoptera): Diversification Shaped by Gondwanan Fragmentation and Conflicting Evidence for the Family's Origin

Journal of Biogeography, Volume 53, Issue 10, October 2026.
ABSTRACT Aim Leptoceridae is the second most diverse caddisfly family, spreading across all biogeographical regions but with a higher species richness in the Oriental region; nevertheless, the Afrotropical, Austral and Neotropical regions have greater genera diversity and endemicity.
Everton S. Dias, Albane Vilarino, Adolfo R. Calor, Pitágoras C. Bispo   +3 more
wiley   +1 more source

South American fire activity in spring is linked to Antarctic sea ice variability

Communications Earth & Environment
Fires in South America exert substantial social, economic, and environmental impacts, and are becoming more severe. While tropical oceanic variability is widely recognized as a key driver of fire-conducive conditions, potential influences from mid- and ...
Hongyi Hou, Li Zhang, Wenju Cai, Xuya Ren, Junkai Wang, Lixin Wu   +5 more
doaj   +1 more source

Global Kelp Biogeography: Past, Present and Future

Journal of Biogeography, Volume 53, Issue 10, October 2026.
ABSTRACT Aim We review the past, present and future biogeography of kelps (Order Laminariales), integrating recent advances in phylogeography, population genomics and species distribution modelling to outline the key patterns and processes relevant to kelp biogeography. Location Global. Taxa Kelp (Order Laminariales).
Samuel Starko, Eliza Fragkopoulou, Lianna Gendall, Trevor Bringloe, Arley Muth   +4 more
wiley   +1 more source

Radiocarbon reservoir ages from freshwater lakes, south Georgia, sub-Antarctic: Modern analogues from particulate organic matter and surface sediments [PDF]

, 2004
Lake sediments have the potential to preserve proxy records of past climate change. Organic material suitable for radiocarbon dating often provides age control of such proxy records.
Davies, S.J., Moreton, S.G., Rosqvist, G.C., Bentley, M.J.   +3 more
core   +1 more source