Results 121 to 130 of about 2,121,328 (291)

Geographical Variation in Thermal Adaptation of the Asiatic Toad (Bufo gargarizans)

Integrative Zoology, EarlyView.
Northern and southern populations of Bufo gargarizans exhibit coordinated divergence in thermal preference, resting metabolic rate, and TRPM4 temperature sensitivity along a climatic gradient. ABSTRACT Thermal adaptation in animals can manifest in multiple dimensions, yet few studies have integrated behavioral, physiological, and molecular perspectives
Longcheng Fan, Yonghua Wu
wiley   +1 more source

Palaeoenvironmental and climatic changes from the lateglacial of the Saalian to the Late Weichselian in central Poland: a multiproxy study from Józefów

Boreas, EarlyView.
Józefów site is a case study which provides a detailed record of environmental and climate changes and confirms the main traces of the landscape morphogenesis of the Late Pleistocene established in central‐eastern Europe. This study presents a multiproxy reconstruction of palaeoenvironment under variable climatic conditions from the retreat of the ...
Aleksandra Majecka, Jacek Forysiak, Ryszard Borówka, Andreas Börner, Łukasz Bujak, Leszek Marks, Radosław Mieszkowski, Piotr Moska, Daniel Okupny, Małgorzata Pisarska‐Jamroży, Renata Stachowicz‐Rybka, Krzysztof Stachowicz   +11 more
wiley   +1 more source

Causes of the Abrupt and Sustained 2016–2023 Antarctic Sea‐Ice Decline: A Sea Ice–Ocean Model Perspective

Geophysical Research Letters
Antarctic sea ice, which undergoes large seasonal changes and plays a crucial role in the global climate system, showed a gradual increasing trend in its extent from the late 1970s to 2015 but experienced a sharp decline in 2016, followed by record lows ...
K. Kusahara, H. Tatebe
doaj   +1 more source

Impacts of Antarctic summer sea-ice extremes

PNAS Nexus
Abstract Antarctic sea ice plays many crucial roles in the physical environments and ecosystems of Antarctica and the Southern Ocean. In this study, we synthesize the physical, biogeochemical, ecosystem, and societal impacts of summers with extreme low Antarctic sea-ice coverage.
Edward W Doddridge, William R Hobbs, Matthis Auger, Philip W Boyd, Sean M T Chua, Sue Cook, Stuart Corney, Louise Emmerson, Alexander D Fraser, Petra Heil, Nat Kelly, Delphine Lannuzel, Xueke Li, Guillaume Liniger, Robert A Massom, Amelie Meyer, Phillip Reid, Colin Southwell, Paul Spence, Anton Steketee, Kerrie M Swadling, Nathan Teder, Barbara Wienecke, Pat Wongpan, Kaihe Yamazaki   +24 more
openaire   +2 more sources

A rapid transition from ice covered CO2–rich waters to a biologically mediated CO2 sink in the eastern Weddell Gyre [PDF]

, 2007
Circumpolar Deep Water (CDW), locally called Warm Deep Water (WDW), enters the Weddell Gyre in the southeast, roughly at 25° E to 30° E. In December 2002 and January 2003 we studied the effect of entrainment of WDW on the fugacity of carbon dioxide (fCO2)
Hoppema, Mario, Baar, H. J. W., Bakker, D. C. E., Schröder, M., Baar, H. J. W. de, Schroeder, M., Hoppema, M., Schröder, Michael, Geibert, W., de Baar, H. J. W.   +9 more
core   +2 more sources

Comprehensive and representative conservation planning for biodiversity of ice‐free Antarctica

Conservation Biology, EarlyView.
Abstract Antarctica is designated as a natural reserve devoted to peace and science, with Antarctic Specially Protected Areas (ASPAs) serving as the primary instrument for area‐based biodiversity protection. However, the existing ASPA network lacks the comprehensiveness and representativeness required under Annex V, Article 3(2), of the Madrid Protocol.
Wen Wen, Jasmine R. Lee, Justine D. Shaw, Kerrie A. Wilson   +3 more
wiley   +1 more source

Report on the geomorphological survey in the Soya Coast (JARE-61)

Antarctic Record, 2020
The Antarctic Ice Sheet is a major source of future sea-level rise due to global warming. Reconstruction of the past Antarctic Ice Sheet is essential to understand the mechanism of the Antarctic Ice Sheet response to global and regional climate changes ...
Takeshige Ishiwa, Yuki Tokuda, Takuya Itaki, Satoshi Sasaki   +3 more
doaj   +1 more source

Triple Oxygen Isotope Compositions of Isotopic Reference Waters: Implications for VSMOW‐Scale and VSMOW–SLAP‐Scale Δ′17O Calibration

Geostandards and Geoanalytical Research, EarlyView.
Key Points Triple oxygen isotope ratios of two primary (VSMOW, SLAP) and twelve secondary water isotopic reference materials were precisely measured using BrF5 fluorination‐IRMS. The measured Δ'17OVSMOW value for SLAP (34 ± 6 per meg) demonstrates that VSMOW‐SLAP normalisation ensures interlaboratory comparability, but introduces systematic offsets for
Ryoji Tanaka, Andreas Pack, Tyler B. Coplen   +2 more
wiley   +1 more source

Polar Summer Snow and Ice Albedo Feedbacks Assessed by Satellite Observations and Radiative Kernels

Remote Sensing
Snow and ice albedo feedback (SIAF) is a key process linking cryospheric changes to global warming. Satellite radiative kernels provide another choice for estimating radiative feedbacks, bypassing the complexity of climate model radiative transfer ...
Yulun Zhang, Yetang Wang, Xiaoqian Liu
doaj   +1 more source

Divergent exploratory‐avoidant behavioural strategies may drive niche differentiation in juvenile Antarctic fishes

Journal of Fish Biology, EarlyView.
Abstract We used an ecological niche theory framework integrating physiological and behavioural ecology to understand interspecific differentiation of juveniles of four Antarctic fishes: Trematomus bernacchii, Trematomus pennellii, Trematomus nicolai and Pagothenia borchgrevinki.
Amanda J. Frazier, Andrew W. Naslund, Milica Mandic, Kenneth W. Zillig, Bryant C. Siu, Anne E. Todgham   +5 more
wiley   +1 more source