Legacy of landscape crop diversity enhances carabid beetle species richness and promotes granivores

Raderschall, Chloé A.; Lundin, Ola; Aguilera, Guillermo; Lindström, Sandra; Bommarco, Riccardo

doi:10.1016/j.agee.2022.108191

Cited by 9 publications

(2 citation statements)

References 86 publications

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“…For carabids, the OSRs can also provide larger and bushy vegetated areas, which serve as ideal hunting grounds, containing plenty of eggs, larvae, and pupae of chrysomelids and dipterans [74,75]. However, we found two dominant carabids, Pterostichus melanarius (Illiger) and P. madidus (Fabricius), were negatively affected by the OSRs.…”

Section: Effect Of Habitat Types and Landscape Compositions On Spider...mentioning

confidence: 71%

Response of Spider and Epigaeic Beetle Assemblages to Overwinter Planting Regimes and Surrounding Landscape Compositions

Chong,

Zhu,

Lai

et al. 2023

Insects

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The rotation patterns of summer rice–winter oil seed rape and summer rice–winter fallow are the main planting regimes in the rice ecosystem in southern China. However, the impact of local rotation patterns and landscape factors on the overwintering conservation of predators in spider and epigaeic beetle assemblages remains poorly understood. Here, we investigate the diversity and density of spiders and beetles over two consecutive winters (2019/2020 and 2020/2021), focusing on the impact of two rotation patterns (rice–fallow and rice–oilseed rape) and surrounding landscape compositions on predator diversity. The main findings of our research were that spiders were more abundant and had a higher activity density in the fallow rice fields (FRs) compared to the oilseed rape fields (OSRs), whereas ground beetles exhibited the opposite pattern. Specifically, fallow rice fields supported small and ballooning spiders (e.g., dominant spider: Ummeliata insecticeps), while OSRs supported larger ground beetles (e.g., dominant beetles: Agonum chalcomus and Pterostichus liodactylus). Moreover, the composition of spider assemblages were impacted by semi-natural habitats (SNHs) during overwintering, while ground beetle assemblages were influenced by overwinter planting patterns. Overall, our results suggest that different planting regimes and preserving semi-natural habitats are a strategic way to enhance species diversity and functional diversity of ground predators. It is, therefore, recommended that to conserve and improve predator diversity during overwintering, land managers and farmers should aim to maintain diverse planting regimes and conserve local semi-natural habitats.

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Section: Effect Of Habitat Types and Landscape Compositions On Spider...mentioning

confidence: 71%

Response of Spider and Epigaeic Beetle Assemblages to Overwinter Planting Regimes and Surrounding Landscape Compositions

Chong,

Zhu,

Lai

et al. 2023

Insects

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“…At the same time, landscape diversity shapes farmland species diversity and provides guidance for arthropod diversity conservation (Van Schalkwyk et al 2021, Ali et al 2022). For example, increased landscape diversity increases correlates with greater beetle richness, which promotes the growth of predators (Massaloux et al 2020, Raderschall et al 2022, Deppe and Fischer 2023. Moreover, high landscape diversity had a positive effect on the richness of bee species and on successful bumblebee breeding (Carrie et al 2017, Schweiger et al 2022.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the effect of landscape component classification on landscape diversity index

Ma,

Li,

Mao

et al. 2024

Environ. Res. Commun.

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The landscape diversity index (LDI) is an important level in biodiversity conservation, and its scale dependence has an important role in regional landscape planning and biological conservation. The aim of this study is to analyze in depth the effects of spatial scale changes in the classification of different landscape components on landscape diversity and to explore the thresholds of landscape diversity. The classification of landscape components was accomplished in the ArcMap environment using fusion and merging tools, and the landscape diversity thresholds and scale changes were quantitatively assessed by LDI values. The results show that there are differences in LDI values for different classifications, and the threshold for landscape diversity without considering scale changes can be interpreted as: 0.4215 ≤ LDI ≤ 1.9754. The grain sizes suitable for landscape diversity analysis are 160m and 1280m, and the effective amplitude range of the Ⅰ, Ⅱ and Ⅲ land type is 9~31km, while the effective amplitude of three land use types is 20~31km, relatively lagging behind. However, when considering amplitude changes, the LDI threshold can be interpreted as 0.3027≤LDI≤2.0947, which is suitable for large-scale regional landscape diversity studies when the grain size is large. In conclusion, the essence of landscape diversity change with scale is caused by changes in the number and area of landscape components, and the threshold analysis should not only take into account the grain size and amplitude, but also consider the landscape background of the study area. Therefore, in-depth analysis of the mechanism of landscape diversity change from the perspective of landscape component classification is of guiding significance for biodiversity conservation.

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Consistency of landscape compositional effects on microclimate, arthropods and plant performance across different years and regions

Gerits,

Reubens,

Messely

et al. 2024

Landsc Ecol

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Context Reinforcement of agrobiodiversity in peri-urban areas requires a landscape lens. Relationships between land use composition and indicators of ecosystem services can depend on weather conditions and differ between regions. Objectives In this study we present new empirical data on relationships between landscape composition and indicators of regulating and provisioning agroecosystem services. Furthermore, we check if these data are consistent between two different ecoregions and different years. Methods We apply an innovative methodology in a research landscape in the province of Antwerp (Flanders, Belgium) in 2021 with 1 m²-garden as phytometers along a landscape compositional gradient. Landscape composition at different scales is used as explanatory variable for microclimate variation, arthropod activity, leaf herbivory and crop yield in the 1 m²-gardens. Results are compared to an identical experiment in another ecoregion in East Flanders in 2018, 2019. Results We found that the proportion of built-up areas is negatively related to local agroecosystem functioning. High-value herbaceous vegetation (e.g. extensive grasslands) promotes the activity of predators and high green vegetation buffers soil moisture and temperature variation, during dry and warm periods. Comparison between cases indicates that there is more consistency in the response of predatory invertebrates to the landscape composition than in the response of pollinators. The buffering effect of high green vegetation in the landscape increases when temperature and drought extremes occur. Conclusions The extent of high green vegetation can be enhanced at landscape level to maximise their ability to buffer extreme weather conditions. In peri-urban areas we should avoid further urban sprawl into the rural matrix and promote high-value herbaceous vegetation.

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Legacy of landscape crop diversity enhances carabid beetle species richness and promotes granivores

Cited by 9 publications

References 86 publications

Response of Spider and Epigaeic Beetle Assemblages to Overwinter Planting Regimes and Surrounding Landscape Compositions

Response of Spider and Epigaeic Beetle Assemblages to Overwinter Planting Regimes and Surrounding Landscape Compositions

Analysis of the effect of landscape component classification on landscape diversity index

Consistency of landscape compositional effects on microclimate, arthropods and plant performance across different years and regions

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