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Staver, Charles; Guharay, Falguni; Monterroso, D.; Muschler, Reinhold

doi:10.1023/a:1013372403359

Cited by 182 publications

(46 citation statements)

References 21 publications

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“…Trees in AFS increase the biodiversity that enhances biological control of P&D (Staver et al 2001;Bos et al 2007;Perfecto et al 2007;Tscharntke et al 2011). The role of companion trees in climate change adaptation and mitigation needs to be better documented and compared to monocropping systems (Cerdán et al 2012;Harvey et al 2014;Rahn et al 2013;Vaast et al 2005Vaast et al , 2006.…”

Section: Introductionmentioning

confidence: 99%

Local tree knowledge can fast-track agroforestry recommendations for coffee smallholders along a climate gradient in Mount Elgon, Uganda

et al. 2017

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Arabica coffee (Coffea arabica) is economically important for many smallholder farmers in the Mount Elgon region of East Uganda, but its production is increasingly threatened by climate change. However, ecosystem services (ES) provided by companion trees in coffee agroforestry systems (AFS) can help farmers adapt to climate change. The objectives of this research were to develop agroforestry species recommendations and tailor these to the farmers' needs and local context, taking into consideration gender. Local knowledge of agroforestry species and ES preferences was collected through farmer interviews and rankings. Using the Bradley-Terry approach, analysis was done along an altitudinal gradient in order to study different climate change scenarios for coffee suitability. Farmers had different needs in terms of ES and tree species at different altitudes, e.g. at low altitude they need a relatively larger set of ES to sustain their coffee production and livelihood. Local knowledge is found to be gender blind as no differences were observed in the rankings of species and ES by men and women. Ranking species by ES and ranking ES by preference is a useful method to help scientists and extension agents to use local knowledge for the development of recommendations on companion trees in AFS for smallholder farmers.

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Section: Introductionmentioning

confidence: 99%

Local tree knowledge can fast-track agroforestry recommendations for coffee smallholders along a climate gradient in Mount Elgon, Uganda

et al. 2017

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“…Insect and fungal pests are the most important factors that limit coffee production in Latin America and the Caribbean (Staver et al 2001;Soto-Pinto et al 2000. Since the 1970s, coffee production has intensified on many farms with the reduction or elimination of shade trees, increased application of agrochemicals, and the use of cultivars tolerant of full sun (Perfecto et al 1996).…”

Section: Introductionmentioning

confidence: 99%

“…Since the 1970s, coffee production has intensified on many farms with the reduction or elimination of shade trees, increased application of agrochemicals, and the use of cultivars tolerant of full sun (Perfecto et al 1996). Intensification was initially intended to enhance crop production while minimizing damage caused by pests (Staver et al 2001). However, current understanding of the relationships between overstory shade and pest damage is incomplete and contradictory.…”

Section: Introductionmentioning

confidence: 99%

“…However, current understanding of the relationships between overstory shade and pest damage is incomplete and contradictory. Some authors have reported increased pest damage with reduced shade and farm vegetative complexity (Wrigley 1988), while others have documented no significant difference (Soto-Pinto et al 2000, or reduced pests with increasing shade (Eskes 1982;Staver et al 2001;Soto-Pinto et al 2000. These patterns combine with non-linear trends in fruit set over varying tree canopy cover, yielding complex region-specific relationships between shade and coffee farm production (Beer et al 1998;Perfecto et al 2005).…”

Section: Introductionmentioning

confidence: 99%

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Effects of shade and bird exclusion on arthropods and leaf damage on coffee farms in Jamaica’s Blue Mountains

et al. 2009

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Abstracts The effects of overstory trees and birds on coffee pests are poorly understood. This study documents (a) the effect of bird exclusion on foliagedwelling arthropod abundance and insect-caused leaf damage, and (b) the relationships between vegetation complexity and insect abundance, leaf damage, and prevalence of fungal leaf symptoms on coffee farms in the Blue Mountains of Jamaica, West Indies. Overall arthropod abundance was reduced inside bird-proof exclosures, and this corresponded to reduced insect-caused leaf damage. The reduction in leaf damage increased with greater shade, but fungal leaf symptoms increased with greater shade and proximity to non-coffee habitat patches. There appears to be a trade-off for coffee farmers in our study region: vegetation complexity may attract beneficial insect-eating birds that can reduce insect damage, but it is also associated with the prevalence of fungal leaf symptoms.

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“…Also, by regulating light transmission to coffee plants -which regulates coffee yields -shade trees can also extend the life of the coffee plantation (Beer, 1987). Staver et al (2001) found that in a low-elevation, dry coffee zone, the use of 35 to 65% shade promoted leaf retention in coffee plants during the dry season and reduced the incidence of disease-causing fungi such as Cercospora coffeicola and Planococcus citri, without reducing yields or increasing the incidence of coffee rust disease, Hemileia vastatrix.…”

Section: Roles Of Avocado In Coffee Ecosystemmentioning

confidence: 99%