Landscape simplification promotes weed seed predation by carabid beetles (Coleoptera: Carabidae)

2013 ◽  
Vol 28 (3) ◽  
pp. 487-494 ◽  
Author(s):  
Dennis Jonason ◽  
Henrik G. Smith ◽  
Jan Bengtsson ◽  
Klaus Birkhofer
Keyword(s):  
Seed Predation ◽  
Carabid Beetles ◽  
Weed Seed

scholarly journals Toward a better understanding of in-field weed regulation by carabid beetles, and their functional characteristics, in European arable landscapes

2019 ◽  
Vol 2 ◽  
Author(s):  
Benjamin Carbonne ◽  
David Bohan ◽  
Sandrine Petit
Keyword(s):  
Seed Predation ◽  
Large Scale ◽  
Production Control ◽  
Carabid Beetles ◽  
Weed Seed ◽  
Weed Species ◽  
Functional Characteristics ◽  
Landscape Characteristics ◽  
Trophic Resources ◽  
Scale Design

For future arable agriculture, there is a need for more sustainable methods to manage weeds that are less reliant on herbicides and maintain food production. Control of weeds by natural enemies is an agro-ecological alternative to reduce the use of herbicides. While strong evidence points to carabid beetles exerting a regulatory effect on certain weed species, it is difficult to predict whether a particular assemblage of carabid species or functional groups will drive the function of weed seed predation in field conditions. There are also uncertainties about which key local and landscape-scale factors affect the function of weed seed predation, and the functional characteristics of carabid communities. In this presentation, we report on specific research actions being conducted within the wider C-IPM BioAWARE project that focuses on weed regulation by carabid biodiversity. We first briefly present statistical analyses aimed at identifying key assemblages of carabid taxa delivering high weed seed predation of Viola arvensis seeds during spring. We then present the principles and the implementation of the BioAWARE large-scale European survey currently in place. We explain how this large-scale design will be used to assess: (i) how landscape characteristics and infield trophic resources determine the functional characteristics and the diversity of carabid communities; and, (ii) key carabid assemblages delivering high seed predation of a large range of weeds through the evolution of the seedbank.

scholarly journals The resilience of weed seedbank regulation by carabid beetles, at continental scales, to alternative prey

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Benjamin Carbonne ◽  
Sandrine Petit ◽  
Veronika Neidel ◽  
Hana Foffova ◽  
Eirini Daouti ◽  
...  
Keyword(s):  
Seed Predation ◽  
Carabid Beetles ◽  
Generalist Predators ◽  
Alternative Prey ◽  
Weed Seed ◽  
Agricultural Ecosystem ◽  
Continental Scale ◽  
Activity Density ◽  
Soil Seedbank ◽  
Cereal Fields

Abstract Carabids are generalist predators that contribute to the agricultural ecosystem service of seedbank regulation via weed seed predation. To facilitate adoption of this ecosystem services by farmers, knowledge of weed seed predation and the resilience of seedbank regulation with co-varying availability of alternative prey is crucial. Using assessments of the seedbank and predation on seed cards in 57 cereal fields across Europe, we demonstrate a regulatory effect on the soil seedbank, at a continental scale, by groups formed of omnivore, seed-eating (granivore + omnivore) and all species of carabids just prior to the crop-harvest. Regulation was associated with a positive relationship between the activity-density of carabids and seed predation, as measured on seed cards. We found that per capita seed consumption on the cards co-varied negatively with the biomass of alternative prey, i.e. Aphididae, Collembola and total alternative prey biomass. Our results underline the importance of weed seedbank regulation by carabids, across geographically significant scales, and indicate that the effectiveness of this biocontrol may depend on the availability of alternative prey that disrupt the weed seed predation.

Post-dispersal weed seed predation in Michigan crop fields as a function of agricultural landscape structure

2000 ◽  
Vol 77 (3) ◽  
pp. 193-202 ◽  
Author(s):  
Fabián D Menalled ◽  
Paul C Marino ◽  
Karen A Renner ◽  
Douglas A Landis
Keyword(s):  
Seed Predation ◽  
Landscape Structure ◽  
Agricultural Landscape ◽  
Weed Seed ◽  
Crop Fields

Weed seed predation in organic and conventional fields

2009 ◽  
Vol 49 (1) ◽  
pp. 11-16 ◽  
Author(s):  
S. Navntoft ◽  
S.D. Wratten ◽  
K. Kristensen ◽  
P. Esbjerg
Keyword(s):  
Seed Predation ◽  
Weed Seed

scholarly journals Poecilus lucublandus (Coleoptera: Carabidae) and Pterostichus mutus Do Not Feed on Hair Fescue, Red Sorrel, and Poverty Oatgrass Seeds

2019 ◽  
Vol 19 (2) ◽  
Author(s):  
Alexandre M M C Loureiro ◽  
G Christopher Cutler ◽  
Vilis O Nams ◽  
Scott N White
Keyword(s):  
Seed Predation ◽  
Choice Test ◽  
Weed Seed ◽  
Weed Species ◽  
Vaccinium Angustifolium ◽  
Lowbush Blueberry ◽  
Rumex Acetosella ◽  
Weed Seeds ◽  
Poecilus Lucublandus ◽  
Danthonia Spicata

Abstract Poecilus lucublandus (Say), Pterostichus mutus (Say), and Harpalus rufipes (De Geer) are abundant Carabidae in lowbush blueberry fields and may contribute to weed seed predation. We used laboratory no-choice test experiments to determine if these beetles feed on seeds of hair fescue (Festuca filiformis Pourr., Poales: Poaceae), poverty oatgrass (Danthonia spicata L.), and red sorrel (Rumex acetosella L., Caryophyllales: Polygonaceae), which are common weeds in lowbush blueberry (Vaccinium angustifolium Ait., Ericales: Ericaceae) fields. Poecilus lucublandus and P. mutus did not feed on seeds of the test weed species, but H. rufipes consumed on average over 30 seeds of each species. There are other weed seeds in blueberry fields that could be palatable to P. lucublandus and P. mutus, which warrants further research on the granivory potential of these important carabid species.

scholarly journals Factors that influence the level of weed seed predation: A review

2019 ◽  
Vol 19 (3) ◽  
pp. 61-74 ◽  
Author(s):  
Vahid Sarabi
Keyword(s):  
Seed Predation ◽  
Weed Seed

scholarly journals Quantifying the ecosystem service of non-native weed seed predation provided by invertebrates and vertebrates in upland wheat fields converted from paddy fields

2011 ◽  
Vol 140 (1-2) ◽  
pp. 191-198 ◽  
Author(s):  
Minoru Ichihara ◽  
Keisuke Maruyama ◽  
Masayuki Yamashita ◽  
Hitoshi Sawada ◽  
Hidehiro Inagaki ◽  
...  
Keyword(s):  
Seed Predation ◽  
Ecosystem Service ◽  
Paddy Fields ◽  
Weed Seed

Relative importance of vertebrates and invertebrates in epigeaic weed seed predation in organic cereal fields

2003 ◽  
Vol 95 (2-3) ◽  
pp. 417-425 ◽  
Author(s):  
P.R Westerman ◽  
A Hofman ◽  
L.E.M Vet ◽  
W van der Werf
Keyword(s):  
Seed Predation ◽  
Relative Importance ◽  
Weed Seed ◽  
Cereal Fields

Weed seed predation increases with vegetation cover in perennial forage crops

2010 ◽  
Vol 138 (1-2) ◽  
pp. 10-16 ◽  
Author(s):  
Helmut Meiss ◽  
Lise Le Lagadec ◽  
Nicolas Munier-Jolain ◽  
Rainer Waldhardt ◽  
Sandrine Petit
Keyword(s):  
Seed Predation ◽  
Vegetation Cover ◽  
Weed Seed ◽  
Forage Crops

Crop and field border effects on weed seed predation in the southeastern U.S. coastal plain

2013 ◽  
Vol 177 ◽  
pp. 58-62 ◽  
Author(s):  
Aaron F. Fox ◽  
S. Chris Reberg-Horton ◽  
David B. Orr ◽  
Christopher E. Moorman ◽  
Steven D. Frank
Keyword(s):  
Seed Predation ◽  
Coastal Plain ◽  
Weed Seed ◽  
Border Effects
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