Forest degradation and inter-annual tree level Brazil Nut production in the Peruvian Amazon

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cg.authorship.typesCGIAR multi-centreen
cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationCenter for International Forestry Researchen
cg.contributor.affiliationETH Zürichen
cg.contributor.affiliationErasmus Universityen
cg.contributor.affiliationUniversidad Nacional Amazónica de Madre de Diosen
cg.contributor.affiliationInstituto de Investigaciones de la Amazonía Peruanaen
cg.contributor.affiliationBioversity Internationalen
cg.coverage.countryPeru
cg.coverage.iso3166-alpha2PE
cg.coverage.regionAmericas
cg.coverage.regionSouth America
cg.coverage.regionLatin America and the Caribbean
cg.identifier.doihttps://doi.org/10.3389/ffgc.2020.525533en
cg.isijournalISI Journalen
cg.issn2624-893Xen
cg.journalFrontiers in Forests and Global Changeen
cg.reviewStatusPeer Reviewen
cg.river.basinAMAZONen
cg.subject.ciforFOREST AND LANDSCAPE RESTORATIONen
cg.subject.impactAreaClimate adaptation and mitigation
cg.volume3en
dc.contributor.authorJensen, M.en
dc.contributor.authorGuariguata, Manuel R.en
dc.contributor.authorChiriboga-Arroyo, Fidelen
dc.contributor.authorQuaedvlieg, J.en
dc.contributor.authorVargas Quispe, F.M.en
dc.contributor.authorArroyo Quispe, E.en
dc.contributor.authorGarcía Roca, M.R.en
dc.contributor.authorCorvera Gomringer, Ronalden
dc.contributor.authorKettle, Christopher J.en
dc.date.accessioned2021-03-03T04:45:07Zen
dc.date.available2021-03-03T04:45:07Zen
dc.identifier.urihttps://hdl.handle.net/10568/111721
dc.titleForest degradation and inter-annual tree level Brazil Nut production in the Peruvian Amazonen
dcterms.abstractBrazil nuts are an economically important non-timber forest product throughout the Amazon Basin, but the forests in which they grow are under threat of severe degradation by logging, road building, agricultural expansion, and forest fires. As a result, many Brazil nut trees grow within a mosaic of young secondary forest, primary forest remnants and agricultural fields. Little is known about the reproductive ecology and fruit production of Brazil nut in such degraded landscapes. Previous studies on Brazil nut productivity did not explicitly address forest degradation as a factor. In this study, we analyzed the extent to which Brazil nut fruit production is affected by the level of forest degradation. We collected 3 years of fruit production data of 126 Brazil nut trees occurring in degraded forest (the above-mentioned mosaics) and closed canopy (i.e., undegraded) forest in and around the Tambopata National Reserve in Madre de Dios, Peru. We analyzed the effect of forest degradation at two different levels: at the site type (i.e., degraded vs. undegraded forest) and the individual tree level (quantified as stand basal area and stem density around the individual Brazil nut trees). Stand basal area around the individual Brazil nut trees significantly positively influenced tree fruit production in all 3 years and stem density in year 2 and 3, with strongest effects in the 3rd year, and weakest effect in the 1st year, coinciding with an El Niño year. Trees in undegraded forest produced more fruits in the 2nd and 3rd year than trees in degraded forest (29.4% and 35.8% more, respectively), but not in the 1st year in which trees in undegraded forest produced 31.7% less fruits than trees in degraded forest. These within year effects were not significant, although the effects significantly differed between years. Our results show that forest degradation can affect Brazil nut fruit production, and suggest that the strength (and possibly the sign) of this effect might be different in (extreme) El Niño years. This illustrates the potential importance of restoring degraded forest to enhance resilience and protect the livelihoods of people depending on the Brazil nut trade.en
dcterms.accessRightsOpen Access
dcterms.audienceScientistsen
dcterms.audienceGeneral Publicen
dcterms.available2021-01-21
dcterms.bibliographicCitationJansen, M., Guariguata, M.R., Chiriboga-Arroyo, F., Quaedvlieg, J., Vargas Quispe, F.M., Arroyo Quispe, E., García Roca, M.R., Corvera-Gomringer, R., Kettle, C.J .2021. Forest Degradation and Inter-annual Tree Level Brazil Nut Production in the Peruvian Amazon. Frontiers in Forests and Global Change, 3:525533. https://doi.org/10.3389/ffgc.2020.525533en
dcterms.extent525533en
dcterms.issued2021-01-21
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherFrontiers Mediaen
dcterms.subjectdegradationen
dcterms.subjectnontimber forest productsen
dcterms.subjectfruit productionen
dcterms.typeJournal Article

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