Matches in SemOpenAlex for { <https://semopenalex.org/work/W4231700478> ?p ?o ?g. }
Showing items 1 to 72 of
72
with 100 items per page.
- W4231700478 endingPage "106" @default.
- W4231700478 startingPage "106" @default.
- W4231700478 abstract "We asked how historical and recent grazing intensity affect the patchy landscape of the heuweltjieveld in the semi-arid biodiversity hotspot Succulent Karoo. The study was carried out on a communal farmland 80 km south-west of Springbok, in Namaqualand. Heuweltjies are roughly circular earth mounds that are regularly distributed in this landscape. We sampled plant species and life-form composition, diversity measures, habitat and soil variables in 100 m2 plots, placed in three visually distinguishable heuweltjie zones (centre, fringe, and matrix) and distributed across grazing camps with different recent and historic grazing intensities. Differences between heuweltjie zones were assessed with ANOVAs and multiple linear regressions. The effect of past and recent grazing intensity on soil and plant variables was analysed by Generalized Linear Models for each heuweltjie zone separately. The three zones constituted clearly distinguishable units in terms of vegetation and soil characteristics. Soil pH and cover of annual plants increased from matrix to centres, while total vegetation cover, species richness and perennial plant cover decreased in the same direction. Historic (pre-2000) grazing patterns had the strongest effects on fringes, showing the strongest soil and vegetation-related signs of overutilization with increased stocking density. Centres showed signs of overutilization irrespective of the stocking density. The much shorter exposure to recent grazing pattern (post-2000), which was nearly inverse to the historic grazing pattern, showed increase of vegetation cover (centres) and species richness (matrix) with recent grazing intensity. We interpret these effects as still visible responses of the lower grazing intensity in these camps during the historic period. No recovery under recent grazing was observed at any of the zones. We conclude that irrespective of their conducive growing conditions, once transformed to a disturbed state, heuweltjie centres recover slowly, whereas the less impacted soil and vegetation of fringes are more responsive than centres and matrix." @default.
- W4231700478 created "2022-05-12" @default.
- W4231700478 date "1985-04-01" @default.
- W4231700478 modified "2023-09-25" @default.
- W4231700478 title "Trilex launches DOODLE" @default.
- W4231700478 doi "https://doi.org/10.1016/0141-1195(85)90040-3" @default.
- W4231700478 hasPublicationYear "1985" @default.
- W4231700478 type Work @default.
- W4231700478 citedByCount "0" @default.
- W4231700478 crossrefType "journal-article" @default.
- W4231700478 hasConcept C100970517 @default.
- W4231700478 hasConcept C104317684 @default.
- W4231700478 hasConcept C130217890 @default.
- W4231700478 hasConcept C142724271 @default.
- W4231700478 hasConcept C150772632 @default.
- W4231700478 hasConcept C151913843 @default.
- W4231700478 hasConcept C153279818 @default.
- W4231700478 hasConcept C185933670 @default.
- W4231700478 hasConcept C18903297 @default.
- W4231700478 hasConcept C201401522 @default.
- W4231700478 hasConcept C205649164 @default.
- W4231700478 hasConcept C24461792 @default.
- W4231700478 hasConcept C2775835988 @default.
- W4231700478 hasConcept C2776133958 @default.
- W4231700478 hasConcept C2777904157 @default.
- W4231700478 hasConcept C39432304 @default.
- W4231700478 hasConcept C53565203 @default.
- W4231700478 hasConcept C55493867 @default.
- W4231700478 hasConcept C71924100 @default.
- W4231700478 hasConcept C86803240 @default.
- W4231700478 hasConcept C97137747 @default.
- W4231700478 hasConceptScore W4231700478C100970517 @default.
- W4231700478 hasConceptScore W4231700478C104317684 @default.
- W4231700478 hasConceptScore W4231700478C130217890 @default.
- W4231700478 hasConceptScore W4231700478C142724271 @default.
- W4231700478 hasConceptScore W4231700478C150772632 @default.
- W4231700478 hasConceptScore W4231700478C151913843 @default.
- W4231700478 hasConceptScore W4231700478C153279818 @default.
- W4231700478 hasConceptScore W4231700478C185933670 @default.
- W4231700478 hasConceptScore W4231700478C18903297 @default.
- W4231700478 hasConceptScore W4231700478C201401522 @default.
- W4231700478 hasConceptScore W4231700478C205649164 @default.
- W4231700478 hasConceptScore W4231700478C24461792 @default.
- W4231700478 hasConceptScore W4231700478C2775835988 @default.
- W4231700478 hasConceptScore W4231700478C2776133958 @default.
- W4231700478 hasConceptScore W4231700478C2777904157 @default.
- W4231700478 hasConceptScore W4231700478C39432304 @default.
- W4231700478 hasConceptScore W4231700478C53565203 @default.
- W4231700478 hasConceptScore W4231700478C55493867 @default.
- W4231700478 hasConceptScore W4231700478C71924100 @default.
- W4231700478 hasConceptScore W4231700478C86803240 @default.
- W4231700478 hasConceptScore W4231700478C97137747 @default.
- W4231700478 hasIssue "2" @default.
- W4231700478 hasLocation W42317004781 @default.
- W4231700478 hasOpenAccess W4231700478 @default.
- W4231700478 hasPrimaryLocation W42317004781 @default.
- W4231700478 hasRelatedWork W1988650103 @default.
- W4231700478 hasRelatedWork W2027414980 @default.
- W4231700478 hasRelatedWork W2065862389 @default.
- W4231700478 hasRelatedWork W2071560933 @default.
- W4231700478 hasRelatedWork W2319485832 @default.
- W4231700478 hasRelatedWork W3081966285 @default.
- W4231700478 hasRelatedWork W3164046828 @default.
- W4231700478 hasRelatedWork W3203965533 @default.
- W4231700478 hasRelatedWork W4221083960 @default.
- W4231700478 hasRelatedWork W4244850388 @default.
- W4231700478 hasVolume "7" @default.
- W4231700478 isParatext "false" @default.
- W4231700478 isRetracted "false" @default.
- W4231700478 workType "article" @default.