FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3000043248> ?p ?o ?g. }

• W3000043248 endingPage "29" @default.
• W3000043248 startingPage "25" @default.
• W3000043248 abstract "• This is the first report of thousands of circular bare patches (sand circles) in stony landscapes of Namibia. • NMR analysis demonstrated that the sand circles in southern Namibia are sites formerly occupied by Euphorbia gregaria. • It is proposed that these sand circles could be used to study population numbers and changes in relation to climate. Thousands of nearly stone-free, sandy, circular patches that lack vegetation (sand circles) are found in stony landscapes (including desert pavement areas) of Namibia and adjacent northwestern South Africa. Their distribution is very similar to that of Euphorbia gregaria, E. gummifera and E. damarana . The aim of this study was to determine if these sand circles represent sites of former occupancy by shrubby euphorbia species in the stony landscapes. Extracts of the soil from within and between sand circles (matrix), as well as from beneath dead E. gregaria plants were compared to an extract of a living E. gregaria with 1 H-NMR and PCA multivariate statistical analysis. The results clearly showed that compounds characteristic of E. gregaria were present inside the sand circles and soil collected from beneath the dead plants but were not in extracts from the matrix soil. Diameters of living aerial parts of E. gregaria plants and sand circles measured in Google Earth™ satellite imagery showed that the average diameter of the sand circles and euphorbias were not statistically different. The aerial parts of Euphorbia gregaria are very dense and accumulate wind-blown sand particles. The accumulated sand buries the original stony surface beneath the aerial parts. When the plants die, a nearly circular sandy patch remains in these otherwise rocky areas. Many dying euphorbias have been observed in these areas and the healthy population seems to be declining. Previous reports on declining numbers of quiver trees ( Aloe dichotoma ) in Namibia were linked to climate change and the same might apply to succulent euphorbias. Since the shrubby euphorbias leave a sandy circle ‘footprint’ in the stony landscapes after they die, these features could potentially be used to estimate former population sizes and distributions and serve as a possible indicator of climate change." @default.
• W3000043248 created "2020-01-23" @default.
• W3000043248 creator A5001519152 @default.
• W3000043248 creator A5066547874 @default.
• W3000043248 creator A5084032323 @default.
• W3000043248 date "2020-05-01" @default.
• W3000043248 modified "2023-09-26" @default.
• W3000043248 title "Sand circles in stony landscapes of Namibia are caused by large Euphorbia shrubs" @default.
• W3000043248 cites W2004148107 @default.
• W3000043248 cites W2007738092 @default.
• W3000043248 cites W2022203023 @default.
• W3000043248 cites W2026001451 @default.
• W3000043248 cites W2068641397 @default.
• W3000043248 cites W2080819842 @default.
• W3000043248 cites W2138605014 @default.
• W3000043248 cites W2180703618 @default.
• W3000043248 cites W2944502744 @default.
• W3000043248 doi "https://doi.org/10.1016/j.sajb.2019.11.009" @default.
• W3000043248 hasPublicationYear "2020" @default.
• W3000043248 type Work @default.
• W3000043248 sameAs 3000043248 @default.
• W3000043248 citedByCount "1" @default.
• W3000043248 countsByYear W30000432482020 @default.
• W3000043248 crossrefType "journal-article" @default.
• W3000043248 hasAuthorship W3000043248A5001519152 @default.
• W3000043248 hasAuthorship W3000043248A5066547874 @default.
• W3000043248 hasAuthorship W3000043248A5084032323 @default.
• W3000043248 hasBestOaLocation W30000432481 @default.
• W3000043248 hasConcept C142724271 @default.
• W3000043248 hasConcept C144024400 @default.
• W3000043248 hasConcept C149923435 @default.
• W3000043248 hasConcept C167110946 @default.
• W3000043248 hasConcept C18903297 @default.
• W3000043248 hasConcept C205649164 @default.
• W3000043248 hasConcept C2776133958 @default.
• W3000043248 hasConcept C2779880300 @default.
• W3000043248 hasConcept C2908647359 @default.
• W3000043248 hasConcept C59822182 @default.
• W3000043248 hasConcept C71924100 @default.
• W3000043248 hasConcept C86803240 @default.
• W3000043248 hasConceptScore W3000043248C142724271 @default.
• W3000043248 hasConceptScore W3000043248C144024400 @default.
• W3000043248 hasConceptScore W3000043248C149923435 @default.
• W3000043248 hasConceptScore W3000043248C167110946 @default.
• W3000043248 hasConceptScore W3000043248C18903297 @default.
• W3000043248 hasConceptScore W3000043248C205649164 @default.
• W3000043248 hasConceptScore W3000043248C2776133958 @default.
• W3000043248 hasConceptScore W3000043248C2779880300 @default.
• W3000043248 hasConceptScore W3000043248C2908647359 @default.
• W3000043248 hasConceptScore W3000043248C59822182 @default.
• W3000043248 hasConceptScore W3000043248C71924100 @default.
• W3000043248 hasConceptScore W3000043248C86803240 @default.
• W3000043248 hasLocation W30000432481 @default.
• W3000043248 hasOpenAccess W3000043248 @default.
• W3000043248 hasPrimaryLocation W30000432481 @default.
• W3000043248 hasRelatedWork W1499959 @default.
• W3000043248 hasRelatedWork W15306260 @default.
• W3000043248 hasRelatedWork W16174390 @default.
• W3000043248 hasRelatedWork W17213815 @default.
• W3000043248 hasRelatedWork W19251638 @default.
• W3000043248 hasRelatedWork W6746887 @default.
• W3000043248 hasRelatedWork W8153663 @default.
• W3000043248 hasRelatedWork W8161733 @default.
• W3000043248 hasRelatedWork W8590275 @default.
• W3000043248 hasRelatedWork W913238 @default.
• W3000043248 hasVolume "130" @default.
• W3000043248 isParatext "false" @default.
• W3000043248 isRetracted "false" @default.
• W3000043248 magId "3000043248" @default.
• W3000043248 workType "article" @default.