2015
DOI: 10.1016/j.agee.2015.05.009
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Tree cover mediates the effect on rapeseed leaf damage of excluding predatory arthropods, but in an unexpected way

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Cited by 7 publications
(4 citation statements)
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References 61 publications
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“…Homegarden sites were preselected using satellite images in Google Earth (accessed 13 January 2012) and the final selection was done after a ground survey which included an agreement with the homegarden owners [ 19 , 21 ]. The sites were distributed over the landscape and selected to cover a gradient from low to high amount of forest cover in the surroundings ( table 1 and figure 1 a ).…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…Homegarden sites were preselected using satellite images in Google Earth (accessed 13 January 2012) and the final selection was done after a ground survey which included an agreement with the homegarden owners [ 19 , 21 ]. The sites were distributed over the landscape and selected to cover a gradient from low to high amount of forest cover in the surroundings ( table 1 and figure 1 a ).…”
Section: Methodsmentioning
confidence: 99%
“…In southwestern Ethiopia, landscapes are characterized by heterogeneous, traditionally managed, agricultural land interspersed with various types of forests. Here the external input of agro-chemicals is low and agricultural crops are grown in different landscape settings ranging from surroundings with low forest cover to places that are almost enclosed by forest [ 19 ]. The agriculture is small-scale subsistence farming, and crops for household consumption are grown in fields or in the compound of individual households, the homegarden.…”
Section: Introductionmentioning
confidence: 99%
“…Leaf damage was visually estimated as the percentage of leaf area damaged by herbivores, relative to the total leaf area (Morrison and Lindell 2012). We considered damage as perforated, skeletonised, curled or partly cut leaves (Lemessa et al 2015;Morrison and Lindell 2012;Van Bael et al 2003). To control for possible differences in leaf damage before the experiment began, we checked to see if there was any leaf damage following the sprouting of maize plants but found none.…”
Section: Map Of Nigeria and The Location Of The Experimental Site On Mambillamentioning
confidence: 99%
“…In Costa Rica, Karp et al [ 8 ] showed birds were directly responsible for an increase in coffee yield worth US$310 ha -1 through predating the coffee berry borer ( Hypothenemus hampei ). Tropical studies have repeatedly linked the success of birds as predators of insect pests in agricultural landscapes with native forest proximity [ 8 , 33 , 41 43 ]; birds use forest fragments as sites for breeding, hibernation and roosting [ 44 ]. Thus, maintaining forest fragments within an agricultural landscape may help improve insect pest control services by birds.…”
Section: Introductionmentioning
confidence: 99%