Results 81 to 90 of about 31,655 (250)

Dust and Snow Cover on Saturn's Icy Moons

, 2019
International audienceThe final analysis of the Cassini radar observations of Saturn's icy moons presented here shows that the exchange of material between the planet's dust rings and moons, which is specific to the Saturnian system, plays a key role in ...
A. Le Gall, West, Richard D., Le Gall, Alice, Bonnefoy, Léa, R. D. West, L. E. Bonnefoy   +5 more
core   +1 more source

Born to die: pack and population level estimates of wolf pup survival and recruitment in the Greater Voyageurs Ecosystem

Wildlife Biology, EarlyView.
Wolf pup Canis lupus survival is a key driver of wolf population dynamics that remains poorly understood, especially in forested systems, because wolf pups are difficult to monitor. We used a combination of pup counts at dens and remote camera observations to estimate annual survival and recruitment of wolf pups in the Greater Voyageurs Ecosystem, MN ...
Andrea Hynes, Thomas D. Gable, Austin T. Homkes, Joseph K. Bump, John G. Bruggink   +4 more
wiley   +1 more source

Lateral melt variations induce shift in Io’s peak tidal heating

Nature Communications
The innermost Galilean moon, Io, exhibits widespread tidally-driven volcanism. Monitoring of its volcanoes has revealed that they are not homogeneously distributed across its surface: volcanic activity is higher at low latitudes and peaks east of the sub-
Allard Veenstra, Marc Rovira-Navarro, Teresa Steinke, Ashley Gerard Davies, Wouter van der Wal   +4 more
doaj   +1 more source

Computational and experimental studies of solids in the ammonia-water system [PDF]

, 2004
This thesis reports the results of first-principles computational studies of thirteen crystalline structures in the H2O-NH3 system. This includes eight low- and highpressure polymorphs of pure water ice, two polymorphs of solid ammonia, and three low ...
Fortes, A, Fortes, Andrew, Fortes A D
core  

Critical constraints to ecological buffering in a rapidly changing Arctic: A long‐term seabird study

Journal of Animal Ecology, EarlyView.
Drawing on two decades of research in East Greenland, this study shows that little auks, key seabird indicators of Arctic ecosystem health, can adapt to rapid environmental change through behavioural flexibility. However, increasing storms and mercury pollution are pushing resilience to its limits, providing an early warning of broader Arctic ...
David Grémillet, Françoise Amélineau, Ann M. A. Harding, Jérôme Fort   +3 more
wiley   +1 more source

Mass-wasting Features on Galilean Icy Moons: Morphological Analysis and Implications

The Planetary Science Journal
This study investigates mass-wasting features on the icy Galilean satellites Europa, Ganymede, and Callisto. Through comparative morphological analysis, we identified and classified slides, slumps, and flow-like deposits as mass-wasting categories using ...
R. Parekh, O. White, J. E. C Scully, R. T. Pappalardo, J. M. Moore, M. E. Cameron, P. Schenk   +6 more
doaj   +1 more source

Reduced fertilization regimes could boost biocontrol service without reducing crop yield

Insect Science, EarlyView.
Fertilization level influences pest control effectiveness in tomato crops. High fertilization increases plant growth and aphid density but reduces the performance of the parasitoid Aphidius ervi. In contrast, the predator Adalia bipunctata maintains consistent aphid suppression regardless of fertilization regime.
Ruohan Ma, Maceo Valente, Roger Boll, Peng Han, Nicolas Desneux, Anne‐Violette Lavoir   +5 more
wiley   +1 more source

Probing the Oxidation State of Ocean Worlds with SUDA: Fe (ii) and Fe (iii) in Ice Grains

The Planetary Science Journal
Characterizing the geochemistry of Europa and Enceladus is a key step for astrobiology investigations looking for evidence of life in their subsurface oceans.
Maryse Napoleoni, Lucía Hortal Sánchez, Nozair Khawaja, Bernd Abel, Christopher R. Glein, Jon K. Hillier, Frank Postberg   +6 more
doaj   +1 more source

Submillimeter Wave Instrument radiometry of the Jovian icy moons

, 2020
Context. We address the issue of remote sensing of the surfaces of Galilean icy moons. We investigate the prospects for retrieval of the physical parameters of the surface of the Jovian icy moons from submillimeter wave radiometry data. Aims.
Y. A. Ilyushin, P. Hartogh, Hartogh, P., Ilyushin, Y.   +3 more
core   +1 more source

Warm Spring Weather Alters Calling Phenology of Four Sympatric Early‐Breeding Anurans

Integrative Zoology, EarlyView.
An unusually warm March in 2024 (“false spring”) followed by freezing temperatures allowed us to assess the impact of a weather event on an amphibian community. The calling activity of all four species was associated with increasing temperature, and the first date of calling was advanced by 11–18 days.
Jeffrey P. Ethier, Nionta Habib, Marc J. Mazerolle, Vance L. Trudeau   +3 more
wiley   +1 more source