Results 51 to 60 of about 4,216 (252)

a low-activity cold seep in the Larsen B area, western Weddell Sea, Antarctica [PDF]

, 2008
First videographic indication of an Antarctic cold seep ecosystem was recently obtained from the collapsed Larsen B ice shelf, western Weddell Sea (Domack et al., 2005).
G. Bohrmann, Kasten, S., Fischer, David, Pape, T., K. Knittel, Graffe, Dorothea, Nöthen, K., Fischer, D., Niemann, H., Nöthen, Kerstin, Graffe, D., D. Fischer, D. Graffe, O. Heilmayer, Heilmayer, Olaf, K. Nöthen, Montiel, A., H. Niemann, Gutt, Julian, S. Kasten, A. Montiel, Kasten, Sabine, Heilmayer, O., Gutt, J., Boetius, Antje, Heilmeyer, O., Boetius, A., Pfeifer, Kerstin, A. Boetius, J. Gutt, Knittel, K., Bohrmann, G., T. Pape   +32 more
core  

Interactions between maternal provisioning and natural selection on seed mass fluctuate across heat waves

American Journal of Botany, EarlyView.
Abstract Premise Changing climates are leading to more frequent and severe heat waves, potentially threatening plant populations. Both acclimation to stress and selection for heat‐escape or heat‐resistance phenotypes occur during heat waves. However, plastic responses and selection do not necessarily interact cohesively—even producing trait responses ...
Lana F. Gaspard, Elissa Harb, Stacy D. Holt Jr., Courtney M. Patterson, Nicholas J. Kooyers   +4 more
wiley   +1 more source

New nematode species and genera (Nematoda: Chromadorea) from cold seeps on Hikurangi Margin, New Zealand

European Journal of Taxonomy, 2023
Relatively little is known about the taxonomy and ecology of deep-sea nematode species inhabiting cold seep habitats. The available data show that cold seep nematode communities are typically characterized by low diversity and are often dominated by a ...
Daniel Leduc
doaj   +1 more source

Cold Seeps in a Warming Arctic: Insights for Benthic Ecology [PDF]

Frontiers in Marine Science, 2020
Cold-seep benthic communities in the Arctic exist at the nexus of two extreme environments; one reflecting the harsh physical extremes of the Arctic environment and another reflecting the chemical extremes and strong environmental gradients associated with seafloor seepage of methane and toxic sulfide-enriched sediments.
Emmelie K. L. Åström, Arunima Sen, Michael L. Carroll, JoLynn Carroll, JoLynn Carroll   +4 more
openaire   +3 more sources

The 9+ month marathon: How pregnancy may have shaped human endurance capacities

The Anatomical Record, EarlyView.
Abstract Anthropology has long considered the evolution of our uniquely human endurance capacities to be the result of selection upon anatomical and physiological features imposed by the demands of thermoregulation and resource acquisition, particularly during the demands of persistence hunting. Research has focused on the anatomical changes present in
Cara Ocobock
wiley   +1 more source

Characterisation of the nematode community of a low-activity cold seep in the recently ice-shelf free Larsen B area, Eastern Antarctic Peninsula. [PDF]

PLoS ONE, 2011
BACKGROUND: Recent climate-induced ice-shelf disintegration in the Larsen A (1995) and B (2002) areas along the Eastern Antarctic Peninsula formed a unique opportunity to assess sub-ice-shelf benthic community structure and led to the discovery of ...
Freija Hauquier, Jeroen Ingels, Julian Gutt, Maarten Raes, Ann Vanreusel   +4 more
doaj   +1 more source

The fossil record stays silent: Confusions and conundrums for hominin pelvis evolution

The Anatomical Record, EarlyView.
Abstract The evolution of the hominin pelvis is commonly modeled as a series of stages driven largely by the requirements of bipedal locomotion, reproduction, thermoregulation, and pelvic floor muscular support. These patterns are complicated by variation in canal dimensions in relationship with different changes in overall pelvic breadths. To quantify
Helen K. Kurki, Cara M. Wall‐Scheffler
wiley   +1 more source

Seismic monitoring of sub-seafloor fluid processes in the Haima cold seep area using an Ocean Bottom Seismometer (OBS)

Earth and Planetary Physics, 2023
The use of ocean bottom seismometers provides an effective means of studying the process and the dynamic of cold seeps by continuously recording micro-events produced by sub-seafloor fluid migration. We deployed a four-component Ocean Bottom Seismometer (
Bin Liu, JianYu Huang, WenBin Jiang, WeiWei Wang, Li Yang   +4 more
doaj   +1 more source

Clathrate hydrate crystallization

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications.
Peter Englezos
wiley   +1 more source

Methane seep carbonates yield clumped isotope signatures out of equilibrium with formation temperatures

Nature Communications, 2016
The geochemistry of methane cold seep carbonates is often used to reconstruct environmental conditions. Loyd et al. find disequilibrium clumped isotope compositions in modern seep carbonates that suggest temperatures up to 50°C too high, raising doubt on
S. J. Loyd, J. Sample, R. E. Tripati, W. F. Defliese, K. Brooks, M. Hovland, M. Torres, J. Marlow, L. G. Hancock, R. Martin, T. Lyons, A. E. Tripati   +11 more
doaj   +1 more source