5365 to 5376 of 13838 results
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Review of potential line-transect methodologies for estimating abundance of dolphin stocks in the eastern tropical Pacific
Read more of: Review of potential line-transect methodologies for estimating abundance of dolphin stocks in the eastern tropical PacificA twelve-year hiatus in fishery-independent marine mammal surveys in the eastern tropical Pacific Ocean (ETP), combined with a mandate to monitor dolphin stock status under international agreements and the need […]
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A horizon scan of emerging issues for global conservation in 2019
Read more of: A horizon scan of emerging issues for global conservation in 2019We present the results of our tenth annual horizon scan. We identified 15 emerging priority topics that may have major positive or negative effects on the future conservation of global […]
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Segregation in space and time explains the coexistence of two sympatric sub-Antarctic petrels
Read more of: Segregation in space and time explains the coexistence of two sympatric sub-Antarctic petrelsBiological communities are shaped by competition between and within species. Competition is often reduced by inter- and intraspecific specialization on resources, such as differencet foraging areas or time, allowing similar […]
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ESD Ideas: Photoelectrochemical carbon removal as negative emission technology
Read more of: ESD Ideas: Photoelectrochemical carbon removal as negative emission technologyThe pace of the transition to a low-carbon economy – especially in the fuels sector – is not high enough to achieve the 2 ∘C target limit for global warming by […]
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Prototype wireless sensors for monitoring subsurface processes in snow and firn
Read more of: Prototype wireless sensors for monitoring subsurface processes in snow and firnThe detection and monitoring of meltwater within firn presents a significant monitoring challenge. We explore the potential of small wireless sensors (ETracer+, ET+) to measure temperature, pressure, electrical conductivity and […]
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Refraction angle calculation in multi-layered ice for wide-beam airborne radar
Read more of: Refraction angle calculation in multi-layered ice for wide-beam airborne radarWe propose an algorithm to calculate the refraction path travelled by a signal from a source to a remote scatterer, through a horizontally parallel multilayer medium with vertical-varying refractive index. […]
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Oil slick detection in the offshore domain: evaluation of polarization-dependent SAR parameters
Read more of: Oil slick detection in the offshore domain: evaluation of polarization-dependent SAR parametersRemote sensing technology is an essential link in the global monitoring of the ocean surface and radars are efficient sensors for detecting marine pollution. When used operationally, a tradeoff must […]
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Sounding the Antarctic ice sheet from space: a feasibility study based on airborne P-band radar data
Read more of: Sounding the Antarctic ice sheet from space: a feasibility study based on airborne P-band radar dataSpace-based radio echo sounding of the continental ice sheets can potentially provide full coverage with uniform sampling and data quality as well as detection of change in environmentally sensitive areas. […]
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Patchy lakes and topographic origin for fast flow in the Recovery Glacier system, East Antarctica
Read more of: Patchy lakes and topographic origin for fast flow in the Recovery Glacier system, East AntarcticaThe Recovery subglacial basin, with its largest glacier Recovery Glacier, has been identified as potentially the biggest contributor to future sea level rise from East Antarctica. Subglacial lakes along the […]
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A comparative study of phycobilliprotein production in two strains of Pseudanabaena isolated from Arctic and tropical regions in relation to different light wavelengths and photoperiods
Read more of: A comparative study of phycobilliprotein production in two strains of Pseudanabaena isolated from Arctic and tropical regions in relation to different light wavelengths and photoperiodsPhycobiliproteins, which include phycocyanin, allophycocyanin and phycoerythrin, are the group of coloured accessory photosynthetic pigments present in cyanobacteria (blue-green algae). Pseudanabaena is a genus of microscopic cyanobacteria, cosmopolitan in distribution […]
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Endemic and cosmopolitan fungal taxa exhibit differential abundances in total and active communities of Antarctic soils
Read more of: Endemic and cosmopolitan fungal taxa exhibit differential abundances in total and active communities of Antarctic soilsOur understanding of the diversity and community dynamics of soil fungi has increased greatly through the use of DNA‐based identification. Community characterisation of metabolically active communities via RNA sequencing has […]