Results 171 to 180 of about 232,018 (415)

Phylogenomics, historical biogeography, and diversification of leaf traits in the Malagasy‐endemic genus Uncarina (Pedaliaceae)

American Journal of Botany, EarlyView.
Abstract Premise Uncarina contains 14 species of woody plants endemic to Madagascar. Its occurrence across dryland biomes on the island make it an interesting system to study the diversification of the flora. Methods Using samples of all species and 512 nuclear loci, we reconstructed phylogenetic trees to examine species relationships and assess their ...
Jeffrey P. Rose, John G. Zaborsky, Nisa Karimi, Kenneth J. Sytsma   +3 more
wiley   +1 more source

Informing adaptive management to reduce ungulate aggregations: A case study involving winter feeding of elk

Wildlife Society Bulletin
In the United States, wildlife managers are entrusted with preserving culturally and economically important ungulate populations in the face of the ongoing spread of chronic wasting disease (CWD). The U.S.
William M. Janousek, Eric K. Cole, Sarah R. Dewey, Tabitha A. Graves   +3 more
doaj   +1 more source

Retreat of Barry Glacier, Port Wells, Prince William Sound, Alaska, between 1910 and 1914 [PDF]

, 1917
Bertrand L. Johnson
openalex   +1 more source

Glaciers and Glaciation

Bulletin of the American Geographical Society, 1904
Mode of access: Internet.
A. B. P., Grove Karl Gilbert
openaire   +2 more sources

Prediction of alpine glacier sliding instabilities: a new hope [PDF]

arXiv, 2011
Mechanical and sliding instabilities are the two processes which may lead to breaking off events of large ice masses. Mechanical instabilities mainly affect unbalanced cold hanging glaciers. For the latter case, a prediction could be achieved based on data of surface velocities and seismic activity. The case of sliding instabilities is more problematic.
arxiv  

Modelling PolSAR Scattering Signatures at Long Wavelengths of Glacier Ice Volumes [PDF]

, 2012
The crucial role of cryosphere for understanding the global climate change has been widely recognized in recent decades [1]. Glaciers and ice sheets are the main components of the cryosphere and constitute the basic reservoir of fresh water for high ...
Al-Kahachi, Noora, Hajnsek, Irena, Jagdhuber, Thomas, Papathanassiou, Kostantinos, Parrella, Giuseppe   +4 more
core  

Rate-and-state friction explains glacier surge propagation

Nature Communications, 2019
The incomplete understanding of glacier dynamics is a major source of uncertainty in assessments of sea-level rise from land-based ice. Through increased ice discharge into the oceans, accelerating glacier flow has the potential to considerably enhance ...
K. Thøgersen, A. Gilbert, T. Schuler, A. Malthe‐Sørenssen   +3 more
semanticscholar   +1 more source

Clay minerals and elemental composition of smectites in the marine sediment from the southwest Ross Sea and implication for their provenance and sediment input changes after the last glacial period

Geoscience Letters
Smectite in detrital sediments can be composed of various proportions of Al, Mg, and Fe, indicating the sediment sources derived from the bedrock or from the sedimentary strata. Comparing the elemental composition of smectites can help to define sediment
Young Kyu Park, Jae Il Lee, Kyu-Cheul Yoo, Hanbeom Park, Jaewoo Jung   +4 more
doaj   +1 more source

A Description of the Iceberg Aircraft Carrier and the Bearing of the Mechanical Properties of Frozen Wood Pulp Upon Some Problems of Glacier Flow [PDF]

, 1948
M. F. Perutz
openalex   +1 more source

Glacier Dammed Lakes in Norway [PDF]

, 1956
Olav Liestöl
openalex   +1 more source