Übersichtsarbeit
Context-dependent response of crop pests to landscape composition
Yang, Long; Pan, Yunfei; Wyckhuys, Kris A.G.; Li, Minlong; Wang, Kaitao; Liu, Bing; Liu, Yangtian; Jia, Shuangshuang; Li, Qian; Li, Yan; Desneux, Nicolas; Lu, Yanhui
Entomologia Generalis Volume 45 Number 2 (2025), p. 339 - 350
veröffentlicht: May 22, 2025
Online veröffentlicht: Feb 19, 2025
Manuskript akzeptiert: Jan 23, 2025
Manuskript-Revision erhalten: Dec 13, 2024
Manuskript-Revision angefordert: Nov 27, 2024
Manuskript erhalten: Sep 12, 2024
DOI: 10.1127/entomologia/2025/3010
Open Access (Arbeit kann kostenlos heruntergeladen werden)
Abstract
Landscape composition affects the performance and pest status of insect herbivores in farmland, though these interactions are mediated by population-level processes and agroecological context. These context-dependent responses contribute to the variability of pest reactions to landscape composition across studies, which arise from a complex set of biotic or abiotic factors that are poorly understood. Here, we provide a systematic literature review on the key determinants of context-specificity and a hierarchical meta-analysis to quantitatively assess the organismal and habitat-related determinants of pest pressure in agricultural landscapes globally. We discussed the potential effects of pest species traits, population processes, habitat quality, and the spatiotemporal scale of research influence pest responses to landscape composition in landscape-level studies. The hierarchical meta-analysis of 227 effect sizes from 70 studies for 58 herbivorous pests showed that pest success in crop fields is greatly affected by feeding mode, the exact stage of its population dynamic and crop habitat quality. In general, landscapes with more semi-natural habitats tend to enhance the colonization level of specialist pests, while more crops land increase season-long population density of the generalist. Large areas of low-quality crop habitats within the landscape reduce pest abundance and these effects are clearer for season-long population density. By accounting for these parameters, landscape-level processes can be harnessed to strengthen the ecological regulation of pests and thereby advance the ecological intensification of agriculture.
Schlagworte
Agroecology • context dependency • ecological based pest management • ecological intensification • host quality