Results 71 to 80 of about 1,499 (218)

Tracking extinct glaciers in GLIMS

Annals of Glaciology
Global Land Ice Measurements from Space (GLIMS), an initiative to build and distribute a database of global glacier data, has recently begun to track glaciers that have recently disappeared.
Bruce H. Raup, Liss Marie Andreassen, Dominic Boyer, Cymene Howe, Mauri Pelto, Antoine Rabatel   +5 more
doaj   +1 more source

Thorncliffe Formation: A proglacial to subglacial lacustrine basin sequence, Greater Toronto Region, Canada

Boreas, EarlyView.
Map of Lower sediment (LS) thickness is a surrogate for the distribution of Thorncliffe Formation (TF) and ~75% of TF thickness from the slope of Niagara Escarpment east to Brighton. Inset images show the LS sequence at the Don Valleys brickyards (DVBY) and undeformed TF sand and gravel (~15 m) below Newmarket Till (NT) at sites L and Co.
David R. Sharpe, Charles E. Logan, Ross D. Knight, Andre J.‐M. Pugin   +3 more
wiley   +1 more source

An experimental examination of dispersal decisions made by flight‐capable heteropteran insects in urban stormwater pond conditions

Ecological Entomology, EarlyView.
Salty conditions in urban stormwater ponds can influence dispersal timing in species‐specific ways for actively dispersing aquatic heteropteran insects. Assaying multiple aspects of dispersal propensity, Hesperocorixa obliqua emigrated earlier in stormwater pond conditions while overall probabilities remained unchanged; Notonecta undulata emigration ...
Ilia Maria C. Ferzoco, Shannon J. McCauley   +1 more
wiley   +1 more source

Hydrology of a Polythermal Glacier, Erikbreen, Northern Spitsbergen

Hydrology Research, 1995
Glacial and glaciohydrologic processes that control the glaciofluvial sediment delivery from Erikbreen, a polythermal glacier on the north coast of Spitsbergen (79°40'N, 12°30'E), were studied during the summer seasons of 1990,1991 and 1992. Erikbreen differs from most glaciers of similar size in Svalbard, by the high flow velocity and a heavily ...
R. Strand Ødegård, J. L. Sollid, B. Etzelmüller, G. Vatne   +3 more
openaire   +1 more source

Genetic and Ecological Management of Pacific Salmon Fisheries for the 21st Century

Fisheries Management and Ecology, EarlyView.
ABSTRACT Based on ecological adaptation theory, tremendous effort is being spent on measures that are eliminating salmon hatcheries and fishing opportunities with the intention of protecting wild runs deemed to be of particular genetic importance to the survival of the species.
Randall E. Brummett, Ian G. Cowx, Devin M. Bartley   +2 more
wiley   +1 more source

Improved representation of laminar and turbulent sheet flow in subglacial drainage models

Journal of Glaciology
Subglacial hydrology models struggle to reproduce seasonal drainage patterns that are consistent with observed subglacial water pressures and surface velocities. We modify the standard sheet-flow parameterization within a coupled sheet–channel subglacial
Tim Hill, Gwenn Elizabeth Flowers, Matthew James Hoffman, Derek Bingham, Mauro Angelo Werder   +4 more
doaj   +1 more source

Warm proglacial lake temperatures and thermal undercutting enhance rapid retreat of an Arctic glacier [PDF]

The Cryosphere
Determining the characteristics of Arctic proglacial lakes is essential for understanding their current and future influence on glacier mass loss, capacity as a carbon sink and the associated impacts for downstream hydrology and ecology.
A. Dye, A. Dye, R. Bryant, F. Falcini, J. Mallalieu, M. Dimbleby, M. Beckwith, D. Rippin, N. Kirchner   +8 more
doaj   +1 more source

Priority areas for arthropod conservation in the Iberian Peninsula and Balearic Islands: Insights from a multi‐taxon distributional database

Insect Conservation and Diversity, EarlyView.
Using over 416,000 occurrence records from 13 arthropod groups (6233 arthropod species), we mapped large‐scale richness patterns and identified biodiversity hotspots across the Iberian Peninsula and Balearic Islands. Hotspot congruence among arthropod groups was low, underscoring the importance of integrative, multi‐taxon approaches for conservation ...
David Sánchez‐Fernández, Saray Mañas‐Jordá, Antonio J. García‐Meseguer, Raúl Acosta, Arturo Ariño, Enrique Baquero, Ignasi Bartomeus, Gabriel de Biurrun, Núria Bonada, David Galicia, Enrique García‐Barros, Mario García‐París, Emilio García‐Roselló, Diego Gil‐Tapetado, Marcos González, Pilar Jurado‐Angulo, Manuel Jesús López‐Rodríguez, Jesús Martínez, Andrés Millán, Víctor J. Monserrat, Eduardo Morano, Miguel L. Munguira, Susana Pallarés, Félix Pina, Carlos E. Prieto, Helena Romo, Carlota Sánchez‐Campaña, Pol Sar, José Manuel Tierno de Figueroa, José Luis Yela, Jorge M. Lobo   +30 more
wiley   +1 more source

Cold comfort for change: Stream mats as biological indicators of ecosystem processes in the McMurdo Dry Valleys, Antarctica

Journal of Phycology, EarlyView.
Abstract Glacier‐fed streams (GFSs) make ideal systems for studying climate‐related changes. Some of the best‐studied GFSs are found in the McMurdo Dry Valleys (MDVs) of Antarctica, one of the Earth's coldest and driest deserts. Despite their harsh and isolated nature, MDV GFSs represent an oasis of life in a landscape visually devoid of it, with ...
Tyler J. Kohler, Ian Hawes, Adrian Howkins, Lydia H. Zeglin, Mike N. Gooseff, Diane M. McKnight   +5 more
wiley   +1 more source

Hydrology and Glaciers in the Upper Indus Basin [PDF]

, 2013
Examines the state of the science associated with the snow and ice hydrology in the Upper Indus Basin (IUB), reviewing the literature and data available on the present and projected role of glaciers, snow fields, and stream flow. Considerable speculation but little analysis exists concerning the importance of glaciers in the volume and timing of flow ...
Yu, Winston, Yang, Yi-Chen, Savitsky, Andre, Alford, Donald, Brown, Casey, Wescoat, James, Debowicz, Dario, Robinson, Sherman   +7 more
openaire   +3 more sources