Dataset from : Browsing is a strong filter for savanna tree seedlings in their first growing season

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dataset.nrf.grantSupport was provided from National Research Foundation grants ACYS (114695), SASSCAL (11858 ) and (N00665/116333).
dc.contributor.authorArchibald, Sally
dc.contributor.authorTwine, Wayne
dc.contributor.authorMthabini, Craddock
dc.contributor.authorStevens, Nicola
dc.date.accessioned2021-06-11T11:02:40Z
dc.date.available2021-06-11T11:02:40Z
dc.date.issued2021-06-15
dc.descriptionDescription: The paper is prepublication, details of the paper will be added once published. Sally Archibald: sally.archibald@wits.ac.za. Centre for African Ecology, School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, Johannesburg, Private Bag X3,WITS, 2050, South Africa.en_ZA
dc.description.abstract1: Newly germinated seedlings are vulnerable to biomass removal but usually have at least six months to grow before they are exposed to dry-season fires, a major disturbance in savannas. In contrast, plants are exposed to browsers from the time they germinate, making browsing potentially a very powerful bottleneck for establishing seedlings. 2: Here we assess the resilience of seedlings of 10 savanna tree species to top-kill during the first 6 months of growth. Newly-germinated seeds from four dominant African genera from across the rainfall gradient were planted in a common garden experiment at the Wits Rural Facility and clipped at 1 cm when they were ~2, 3, 4, and 5 months old. Survival, growth, and key plant traits were monitored for the following 2.5 years. 3: Seedlings from environments with high herbivory pressure survived top-kill at a younger age than those from low-herbivore environments, and more palatable genera had higher herbivore-tolerance. Most individuals that survived were able to recover lost biomass within 12 months, but the clipping treatment affected root mass fraction and branching patterns. 4: Synthesis: The impact of early browsing as a demographic bottleneck can be predicted by integrating information on the probability of being browsed and the probability of surviving a browse event. Establishment limitation through early-browsing is an under-recognised constraint on savanna tree species distributions. Data may be used without requesting permission after the J Ecology paper is published and in the public domain (estimated after October 2021).
dc.description.additionalThe data represent monthly survival and growth data for ~740 seedlings from 10 species under various levels of clipping. Total data rows : 3287. These were from four common savanna tree clades: Combretum, Vachellia, Senegalia, and Detarioideae. The species were: Vachelia erioloba, Vachelia exuvialis, Vachellia sieberiana, Senegalia mellifera, Senegalia nigrescens, Senegalia caffra, Combretum collinum, Combretum heroense, Combretum molle, Colophospermum mopane, Burkea africana, Brachystegia spiciformis. The study was carried out at the Wits Rural Facility (WRF), a 350 ha research station of the University of the Witwatersrand, in the central savanna Lowveld area of Limpopo Province, South Africa (∼31° 06E, 24°30 S) between (September 2016) and July 2019 approximately. Data was collected by Sally Archibald, Nicola Stevens, Craddock Mthabini. Frank Nyathi and Elizabeth Telford did excavating and weighing the below-ground biomass. Stephen Young, Zemijo Kimmie, Benko Kimmie, and Zaid Kimmie did observational data collection, measuring seedlings and watching impala. Funded by NRF/SASSCAL Grant number 118588 Mechanisms Controlling Species Limits in a Changing World, ACCESS grant number ACYS (114695) and and N00665/116333.
dc.description.librarianNLen_ZA
dc.description.sponsorshipSouth Africa Mechanisms Controlling Species Limits in a Changing World. NRF/SASSCAL Grant number 118588en_ZA
dc.facultyScienceen_ZA
dc.funderNational Research Foundation;en_ZA
dc.funderFunded by NRF/SASSCAL Grant number 118588 Mechanisms Controlling Species Limits in a Changing World, ACCESS grant number ACYS (114695) and and N00665/116333.
dc.identifier.urihttps://hdl.handle.net/10539/31391
dc.journal.linkhttps://besjournals.onlinelibrary.wiley.com/journal/13652745en_ZA
dc.language.isoenen_ZA
dc.orcid.id0000-0003-2786-3976en_ZA
dc.orcid.id0000-0002-0693-8409en_ZA
dc.orcid.id0000-0002-4163-198Xen_ZA
dc.publisherARCHIBALD ECOLOGY LABen_ZA
dc.rightsopen access,remain the intellectual property of the original collectors of the data. Any re-use of archived data must be referenced appropriately.en_ZA
dc.schoolAnimal, Plant and Environmental Sciencesen_ZA
dc.subjectbrowse-trapen_ZA
dc.subjectdemographic bottlenecksen_ZA
dc.subjectdistribution limiten_ZA
dc.subjecttoleranceen_ZA
dc.subjectsurvivalen_ZA
dc.subjectseedling establishmenten_ZA
dc.subjectresproutingen_ZA
dc.subjectherbivoryen_ZA
dc.subjectsavanna tree speciesen_ZA
dc.subjectconsequences of global climate changeen_ZA
dc.subjectResearch Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNINGen_ZA
dc.subjectResearch Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING::Plant production::Plant and forest protectionen_ZA
dc.titleDataset from : Browsing is a strong filter for savanna tree seedlings in their first growing seasonen_ZA
dc.title.alternativeSeedlingsen_ZA
dc.typeDataseten_ZA
dcterms.extentTaxonomic coverage of the dataset. Species Code Seed origin Vachelia erioloba vaceri Upington, South Africa Vachelia exuvialis vacexu Local Vachellia sieberiana vacsie Pietermaritzburg, South Africa Senegalia mellifera senmel Etosha, Namibia Senegalia nigrescens sennig Local Senegalia caffra sencaf N Kwa-Zulu Natal, South Africa Combretum collinum comcol Local Combretum heroense comher Local Combretum molle commol N Kwa-Zulu Natal, South Africa Colophospermum mopane colmop Venetia, South Africa Burkea africana burafr Nylsvley, South Africa Brachystegia spiciformis braspi Copperbelt, Zambia
ddi.colldateFrom August 2016 to July 2019
ddi.collmodePlease see Archibald et al J. Ecology Browsing is a strong filter for savanna tree seedlings in their first growing season
ddi.dataaccsData may be used without requesting permission after the J Ecology paper is published and in the public domain (estimated after October 2021).
ddi.datacollectorData provider: Sally Archibald and Nicola Stevens sally.archibald@wits.ac.za
ddi.geogcoverThe Wits Rural Facility (-24.566483, 31.098518)
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