Results 121 to 130 of about 1,244,539 (310)

Habitat complexity and prey composition shape an apex predator's habitat use across contrasting landscapes

open access: yesEcography, Volume 2026, Issue 6, June 2026.
The spatial ecology of stalk‐and‐ambush predators like the Eurasian lynx Lynx lynx depends on prey availability and environmental features, yet the relative roles of these factors remain unclear at large spatial scales. In this study, we analysed lynx habitat use across central and southern Finland using snow‐track data from the Wildlife Triangle ...
Francesca Malcangi   +4 more
wiley   +1 more source

The application of ERTS imagery to mapping snow cover in the western United States [PDF]

open access: yes
The author has identified the following significant results. In much of the western United States a large part of the utilized water comes from accumulated mountain snowpacks; thus, accurate measurements of snow distributions are required for input to ...
Barnes, J. C.   +2 more
core   +1 more source

Acceptability of HIV self-testing to support pre-exposure prophylaxis among female sex workers in Uganda and Zambia: results from two randomized controlled trials

open access: yesBMC Infectious Diseases, 2018
Background HIV pre-exposure prophylaxis (PrEP) is highly effective for prevention of HIV acquisition, but requires HIV testing at regular intervals. Female sex workers (FSWs) are a priority population for HIV prevention interventions in many settings ...
Katrina F. Ortblad   +10 more
doaj   +1 more source

Warming summers limit reindeer grazing, weakening herbivory pressure in the mountain tundra

open access: yesEcography, Volume 2026, Issue 6, June 2026.
Climate change is predicted to alter species interactions by exposing ecosystems to increasingly frequent and intense warm spells. In the mountain tundra, grazing by large herbivores, particularly reindeer, can limit shrub expansion and preserve Arctic plant diversity.
Marianne Stoessel   +2 more
wiley   +1 more source

Red and near-infrared spectral reflectance of snow [PDF]

open access: yes
The spectral reflectance of snow in the range of 0.60 to 2.50 microns wavelengths was studied in a cold laboratory using natural snow and simulated preparations of snow. A white barium sulfate powder was used as the standard for comparison.
Munis, R. H., Obrien, H. W.
core   +1 more source

Vegetation on the move: elevational shifts and greening dynamics across the Himalayan alpine zone

open access: yesEcography, Volume 2026, Issue 6, June 2026.
This study investigates alpine ‘vegetation line' (the upper limit of continuous plant community) dynamics in the Himalayan alpine zone (HAZ) over a 24‐year timescale (1999–2022) using maximum NDVI products derived from Landsat series datasets, adjusted for sampling bias using phenological modelling.
Ruolin Leng   +5 more
wiley   +1 more source

Enablers and barriers to rotavirus vaccine coverage in Assam, India- A qualitative study

open access: yesVaccine: X
Background: Estimates suggest that 78,000 children died due to rotavirus gastroenteritis annually between 2011 and 2013 in India. The north eastern state of Assam reported 38.4% pediatric diarrheal admissions testing positive for rotavirus.
Rashmi Mehra   +9 more
doaj   +1 more source

Pre‐industrial land‐use limits contemporary shrub encroachment in the French Alps

open access: yesEcography, EarlyView.
Shrub encroachment has become a global phenomenon in recent decades. While global warming in the Arctic is often cited as the primary cause, human‐managed mountain regions have experienced intense historical land‐use that may also play a considerable role.
Baptiste Nicoud   +6 more
wiley   +1 more source

Application of LANDSAT imagery for snow mapping in Norway [PDF]

open access: yes
The author has identified the following significant results. It was shown that if the snow cover extent was determined from all four LANDSAT bands, there were significant differences in results.
Odegaard, H., Ostrem, G.
core   +4 more sources

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