Excessive pruning and limited regeneration: are Faidherbia albida parklands heading for extinction in the Central Rift Valley of Ethiopia?

dc.creatorSida, T.S.
dc.creatorBaudron, F.
dc.creatorDejene Adugna Deme
dc.creatorMotuma Tolera
dc.creatorGiller, K.E.
dc.date2018-06-29T21:07:10Z
dc.date2018-06-29T21:07:10Z
dc.date2018
dc.date.accessioned2023-07-17T20:02:47Z
dc.date.available2023-07-17T20:02:47Z
dc.identifierhttps://hdl.handle.net/10883/19529
dc.identifier10.1002/ldr.2959
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7511419
dc.descriptionScattered Faidherbia albida trees provide multiple ecological and production benefits across the Sahel. The intensive management and use of this important tree may impede its regeneration. Regeneration bottlenecks were explored and population dynamics modelled. On experimental plots in which seed of F. albida was sown, exposure to the first 2 months of dry season resulted in a quarter of seedling mortality. Exposure to season-long free grazing and browsing caused significantly greater seedling mortality. Results from monitoring 100 permanent plots scattered over the landscape showed that adult population density was 4.2 ± 0.3 (mean ± SE) trees ha?1 and dominated by old age classes. Sixty percent of the total population were older than 30 years. The mean density for juveniles was 1.4 ± 0.2 (mean ± SE) individuals ha?1. The annual rates of decline were 1.2%, 51.3%, and 63.2% for adults, seedlings, and saplings, respectively. Our model predicted that the F. albida population will start to decline within 1?2 decades to eventually fall below 1 tree ha?1 within 60 years under current management. The model highlighted that the limited seed source, caused by excessive pruning, was the main constraint for recruitment. Appropriate land management policy to ensure adequate seed production would avert current trends in decline of F. albida population.
dc.description1623-1633
dc.formatPDF
dc.languageEnglish
dc.publisherJohn Wiley and Sons
dc.relationhttps://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fldr.2959&file=ldr2959-sup-0001-Sida+et.+al.+F.+albida+Degradation+LDD+Suppleme.docx
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dc.rightsOpen Access
dc.source6
dc.source29
dc.sourceLand Degradation and Development
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectAGROBIODIVERSITY
dc.subjectCLIMATE CHANGE
dc.subjectFAIDHERBIA ALBIDA
dc.titleExcessive pruning and limited regeneration: are Faidherbia albida parklands heading for extinction in the Central Rift Valley of Ethiopia?
dc.typeArticle
dc.coverageUnited Kingdom


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