What question did this study set out to answer?

To evaluate how surrounding landscape characteristics and earthen field margins influence the abundance and diversity of beneficial insect predators in rice fields.

July 16, 2020BMC ZoologyOpen Access

Surrounding landscape influences the abundance of insect predators in rice field

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Authors

MAM. P. AliBangladesh Medical Research Council MKM. M. M. KabirBangladesh Rice Research Institute SHSheikh Shamiul HaqueBangladesh Rice Research Institute

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Implication

Field study reveals landscape heterogeneity and bund width dictate beneficial predator abundance in rice fields, highlighting the need for localized integrated pest management strategies.

Key Points

To evaluate how surrounding landscape characteristics and earthen field margins influence the abundance and diversity of beneficial insect predators in rice fields.
Surveyed predator abundance, predator diversity indices (Shannon diversity), and rice bund margin widths across three distinct landscapes in Bangladesh.
Assessed weed species richness on earthen field ridges and quantified populations of four major rice pest predators, including the green mirid bug.
Performed geospatial and variogram analyses using the red spectral band of December 2016 Landsat 8 satellite imagery to characterize local landscape heterogeneity.
Spider populations increased significantly with wider rice bund margins, while weed species richness on earthen ridges showed no relationship with predator abundance.
The green mirid bug was the most abundant predator across all surveyed landscapes, with overall predator diversity highest in landscape I, followed by landscape III and landscape II.
Variogram analyses demonstrated substantial landscape heterozygosity across study sites, confirming that predator community structure is driven by local landscape composition.

Cite This Study

Ali et al. (2020) studied this question.

synapsesocial.com/papers/6a98d067b0871bb756e10a1e https://doi.org/10.1186/s40850-020-00059-1

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Implication

Field study reveals landscape heterogeneity and bund width dictate beneficial predator abundance in rice fields, highlighting the need for localized integrated pest management strategies.

Surrounding landscape influences the abundance of insect predators in rice field

Discussion

Member takes

Implication

Key Points

Cite This Study

Surrounding landscape influences the abundance of insect predators in rice field

Discussion

Member takes

Implication

Key Points

Cite This Study

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