Results 101 to 110 of about 1,357,505 (322)

Evidence for adaptive explanations of semelparity in animals

open access: yesBiological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher   +1 more
wiley   +1 more source

Spatial and Temporal Variability of the Surface Mass Balance of Debris‐Covered Glacier Tongues

open access: yesJournal of Geophysical Research - Earth Surface
Himalayan glaciers often have a supraglacial debris layer that causes spatial heterogeneity in surface changes and mostly reduces melt. Despite this, debris‐covered glaciers lose mass at similar rates to debris‐free glaciers.
P. Kraaijenbrink, W. Immerzeel
semanticscholar   +1 more source

Monitoring ice-capped active Volćan Villarrica, southern Chile, using terrestrial photography combined with automatic weather stations and global positioning systems [PDF]

open access: yes, 2008
Volc´an Villarrica (39◦25'12" S, 71◦56'27"W; 2847ma.s.l.) is an active ice-capped volcano located in the Chilean lake district. The surface energy balance and glacier frontal variations have been monitored for several years, using automatic weather ...
Rivera, Andrés   +5 more
core   +1 more source

Land birds on atolls: diversity, origin, and function

open access: yesBiological Reviews, EarlyView.
ABSTRACT Oceanic islands are global hotspots of avian biodiversity and endemism. Their isolation and distinct environmental conditions have uniquely shaped the evolutionary trajectories of island birds, while, in turn, land bird communities have become critical providers of ecological functions to island ecosystems.
Sebastian Steibl   +6 more
wiley   +1 more source

Review of SAR imaging geodesy for glacier velocity monitoring

open access: yesGeodesy and Geodynamics
The surface velocity is one of the most important characteristics of glaciers. Monitoring and mapping glacier movements are of great significance for the studies of sea-level rise, glacier mass balance and dynamics, global warming, and the management of ...
Meiling Wen, Teng Wang
doaj   +1 more source

Hot and cold deserts as eco‐evolutionary arenas for understanding plant resistance to multiple abiotic stressors

open access: yesBiological Reviews, EarlyView.
ABSTRACT During their long evolutionary history, land plants have evolved a range of adaptations to different abiotic stressors. These help explain present‐day diversity and distribution patterns, as well as the potential resilience of natural and agricultural systems to a changing climate. Most previous research has focused on adaptation to individual
Marc Fradera‐Soler   +6 more
wiley   +1 more source

Linking glacier retreat with climate change on the Tibetan Plateau through satellite remote sensing

open access: yesThe Cryosphere
. Under global climate change, glaciers on the Tibetan Plateau are experiencing severe retreat, which significantly impacts the regional water cycle and the occurrence of natural hazards.
Fu-meng Zhao   +3 more
semanticscholar   +1 more source

Serious Hazards of Transfusion (SHOT) Annual Report 2003 [PDF]

open access: yes, 2023
SHOT is affiliated to the Royal College of PathologistsWith this 7th annual report, SHOT provides an increasingly authoritative analysis of serious transfusion hazards in the UK and an evidence base for blood safety initiatives, policies and guidelines ...
Serious Hazards of Transfusion (SHOT)
core  

Does Climate Risk Affect Employment Decisions? International Evidence

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study investigates the effect of climate risk on corporate employment decisions. Using a large sample from 41 countries, we find a positive association between climate risk and underinvestment in labor, notably manifesting as excessive employee layoffs.
Claude Francoeur   +3 more
wiley   +1 more source

Amplified Risks of the Yarlung Zangbo–Brahmaputra River to Glacier Hazard Chains due to Multi-Hazard Transformation

open access: yesEngineering
A glacier hazard chain can form a long-runout mass flow and generate a large flood, affecting downstream areas hundreds of kilometers away from the initiating hazard site. This study focuses on the Yarlung Zangbo Daxiagu.
Ruochen Jiang   +6 more
doaj   +1 more source

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