Results 91 to 100 of about 89,021 (200)
Flow and structure in a dendritic glacier with bedrock steps
Journal of Glaciology, 2017 We analyse ice flow and structural glaciology of Shackleton Glacier, a dendritic glacier with multiple icefalls in the Canadian Rockies. A major tributary-trunk junction allows us to investigate the potential of tributaries to alter trunk flow and ...
HESTER JISKOOT +2 more
doaj +1 more source
Current observations on three surges in Glacier Bay, Alaska, 1965–1968
, 1969 Nine glaciers in Glacier Bay, in southeastern Alaska, and three others within a radius of 60 km have been known to surge in the last 60 years. Of these, seven have surged during the 1960's. The surges of three of them, the Tyeen, Rendu, and Carroll, are
William O. Field
core +1 more source
Pest‐preservation paradox among insects
Conservation Biology, EarlyView.The pest‐preservation paradox is a non‐binary perspective that insects range from those that are harmful and requiring management on the one side, to those requiring conservation intervention on the opposite end of the spectrum. Importantly, the vast majority of insects occur somewhere in the center of the two extremes, and their position along the ...
Michael J. Samways +3 more
wiley +1 more source
Propagating Strain Anomalies during Mini-Surges of Variegated Glacier, Alaska, U.S.A.
, 1986 Wire strain meters and seismometers spaced longitudinally along the upper part of Variegated Glacier, Alaska, showed quasi-periodic episodes of increased velocity (mini-surges), which lasted about 1 day and recurred at intervals of a few days to 2 weeks ...
Stephen Malone, Charles F. Raymond
core +2 more sources
Producing a Red List of Ecosystems for the Brazilian Cerrado
Conservation Science and Practice, EarlyView.Land clearance is a key driver of biodiversity loss. This is a particular issue in the Brazilian Cerrado, the world's most biodiverse savanna biome and a region experiencing the rapid expansion of agriculture. By using the Red List of Ecosystems as an international standard, we provide the first globally comparable analysis of the state of the Cerrado,
Juliana Ávila Martins, Robert J. Smith
wiley +1 more source
Seven decades of uninterrupted advance of Good Friday Glacier, Axel Heiberg Island, Arctic Canada
Journal of Glaciology, 2019 Previous studies reported that Good Friday Glacier had been actively surging in the 1950–60s, 1990s and again in 2000–15. Based on observations of terminus position change from air photos and satellite imagery, we fill the gaps between previous studies ...
DOROTA MEDRZYCKA +3 more
doaj +1 more source
Ibis, EarlyView.Global climate change is reshaping the schedules and routes of migratory birds, which can disrupt annual cycles, ecological interactions and the fitness trade‐offs of migrating or staying resident. In particular, climate change has led to advances in arrival at the breeding grounds and to shifts in the timing of post‐breeding migration, whereby both ...
Bashar Jarayseh +2 more
wiley +1 more source
Journal of GlaciologyGlacier surges can create ice-dammed lakes when the advancing terminus blocks drainage. Such lakes are inherently unstable and can drain abruptly as glacial lake outburst floods (GLOFs), presenting a hazard to downstream populations and infrastructure in
Harold Lovell, Sher Muhammad
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Intra-annual and intra-seasonal flow dynamics of a High Arctic polythermal valley glacier [PDF]
, 2002 Measurements of surface dynamics on polythermal John Evans Glacier, Nunavut, Canada, over two winter periods and every 7-10 days throughout two melt seasons (June-July 2000, 2001) provide new insight into spatio-temporal patterns of High Arctic glacier ...
Bingham, R.G. +9 more
core +1 more source
Journal of Phycology, EarlyView.Abstract The genus Merismopedia (Merismopediaceae, Chroococcales), characterized by rectangular colonies with cells arranged in regular perpendicular rows and columns, represents a challenging study system due to its limited cultivability. The genus recently underwent taxonomic revision using cultivation‐independent techniques and a polyphasic approach.
Jan Pokorný +2 more
wiley +1 more source