Results 101 to 110 of about 71,720 (316)
, 2000 The 1996 Chagos Expedition provided the first opportunity to study the archipelago’s lichen flora. Seventeen of the 55 islands were ecologically investigated, some in more detail than others, and lists and representative collections of lichens have been ...
Aptroot, André, Seaward, Mark R. D.
core
Symbiosis constraints: Strong mycobiont control limits nutrient response in lichens
Ecology and Evolution, 2017 Symbioses such as lichens are potentially threatened by drastic environmental changes. We used the lichen Peltigera aphthosa—a symbiosis between a fungus (mycobiont), a green alga (Coccomyxa sp.), and N2‐fixing cyanobacteria (Nostoc sp.)—as a model ...
Kristin Palmqvist +2 more
doaj +1 more source
Head‐to‐Head Comparison of Four Ultrasound Elastography Techniques in Detecting Advanced Fibrosis
Portal Hypertension &Cirrhosis, EarlyView.Elastography is an important noninvasive method for diagnosing advanced fibrosis (AF); however, evidence remains insufficient, particularly regarding acoustic radiation force impulse (ARFI) techniques. This prospective mulitcenter study concludes that vibration controlled transient elastography (VCTE) demonstrates superior diagnostic performance to ...
Jiahao Han +8 more
wiley +1 more source
Frontiers in Plant Science, 2017 Lichens and free-living terrestrial algae are widespread across many habitats and develop successfully in ecosystems where a cold winter limits survival.
Fátima Míguez +4 more
doaj +1 more source
, 1998 A total of 233 foliicolous lichen species and 18 lichenicolous fungi are reported from Guyana as a result of the Smithsonian „International Cryptogamic Expedition to Guyana“ 1996.
Lücking, Robert
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Cicatricial keratoconjunctivitis associated with lichen planus
, 2015 Purpose: To describe a case of cicatricial keratoconjunctivitis associated with lichen planus.Methods: Case report.Results: To our knowledge, this is the sixth reported case of cicatricial keratoconjunctivitis associated with lichen planus. A 73-year-old
Channa, Prabjot +3 more
core +1 more source
Permafrost Distribution in the Canadian Rockies: Key Variables Influencing Patch‐Scale Variability
Permafrost and Periglacial Processes, EarlyView.ABSTRACT The spatial distribution of permafrost in mountainous regions is influenced by various factors such as topography, climate, vegetation, and substrate. Despite the existence of comprehensive permafrost maps at national and global levels, they fail to accurately represent the patch‐scale (e.g., < 25 m) permafrost distribution in characteristic ...
Gerardo Zegers +2 more
wiley +1 more source
Lichens of the surrounding areas of Termas of Chillán and Las Trancas, Bío-Bío Region, Chile
Gayana: Botanica, 2016 The aim of this study was to contribute to the knowledge of the richness and distribution of the lichens in the Bío-Bío Region. A total of 120 samples were collected in the surroundings of Termas de Chillán and Las Trancas, Bio-Bio region.
Iris Pereira +4 more
doaj
Population Genetics and Photobiont Selectivity in Antarctic Lichens
, 2013 This thesis examines population genetic structure and migration indices of an Antarctic endemic lichen Buellia frigida as well as algal selectivity of the lichens Buellia frigida, Umbilicaria aprina and Umbilicaria decussata in the Ross Sea Region of ...
Burgess-Jones, Tracey
core
Permafrost and Periglacial Processes, EarlyView.ABSTRACT Under continued climate warming, understanding present‐day permafrost distribution and the controls on ground thaw are critical for predicting permafrost thaw trajectories and associated implications. This study presents a high‐resolution investigation of permafrost extent and active layer thickness (ALT) across a coniferous forested hillslope
Alana Muenchrath +2 more
wiley +1 more source