Landscape composition influences the activity density of Carabidae and Arachnida in soybean fields

Gardiner, Mary M.; Landis, Douglas A.; Gratton, Claudio; Schmidt, Nicholas P.; O’Neal, Matthew E.; Mueller, Emily E.; Chacón, Jeremy M.; Heimpel, George E.

doi:10.1016/j.biocontrol.2010.06.008

Cited by 82 publications

(54 citation statements)

References 32 publications

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“…With these observations, it is difficult to say which of the predators are having the greatest impact on aphid populations, but in numerical terms our work echoes previous studies that O. insidiosus and H. axyridis are likely important, and underscores that N. americoferus is on the list of potentially important biological control agents of soybean aphid. The soil surface in soybeans has a diverse community of predators throughout the soybean producing region, often reportedly dominated by spiders and carabid beetles (Rutledge et al, 2004;Gardiner et al, 2010). Our work suggests that this may be an artifact of the choice of sampling procedure.…”

Section: Speciesmentioning

confidence: 73%

Insect communities in soybeans of eastern South Dakota: The effects of vegetation management and pesticides on soybean aphids, bean leaf beetles, and their natural enemies

et al. 2013

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Section: Speciesmentioning

confidence: 73%

Insect communities in soybeans of eastern South Dakota: The effects of vegetation management and pesticides on soybean aphids, bean leaf beetles, and their natural enemies

et al. 2013

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“…Therefore, the abundance and richness of surface-dwelling predatory invertebrates in our study should be interpreted as showing no response to differences in grass basal cover or plant species composition rather than differences in plant richness per se. In addition, the abundance and richness of some invertebrates with large ranges such as spiders and ground beetles may be influenced more by factors that operate at larger spatial scales (e.g., land use and presence of corridors) rather than within plot factors (e.g., local habitat characteristics), and several studies have found spider and ground beetle communities to respond strongly to variables at landscape scales in the order of 200-500 m (Aviron et al, 2005;Dauber et al, 2005;Hendrickx et al, 2007;Gardiner et al, 2010;Maisonhaute et al, 2010). Ants have been found to respond more strongly to local microclimatic and soil characteristics (e.g., insolation and soil humidity) (Dauber et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

Responses of predatory invertebrates to seeding density and plant species richness in experimental tallgrass prairie restorations

Nemec

Allen

Danielson

et al. 2014

Agriculture, Ecosystems & Environment

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a b s t r a c tIn recent decades, agricultural producers and non-governmental organizations have restored thousands of hectares of former cropland in the central United States with native grasses and forbs. However, the ability of these grassland restorations to attract predatory invertebrates has not been well documented, even though predators provide an important ecosystem service to agricultural producers by naturally regulating herbivores. This study assessed the effects of plant richness and seeding density on the richness and abundance of surface-dwelling (ants, ground beetles, and spiders) and aboveground (ladybird beetles) predatory invertebrates. In the spring of 2006, twenty-four 55 m × 55 m-plots were planted to six replicates in each of four treatments: high richness (97 species typically planted by The Nature Conservancy), at low and high seeding densities, and low richness (15 species representing a typical Natural Resources Conservation Service Conservation Reserve Program mix, CP25), at low and high seeding densities. Ants, ground beetles, and spiders were sampled using pitfall traps and ladybird beetles were sampled using sweep netting in [2007][2008][2009]. The abundance of ants, ground beetles, and spiders showed no response to seed mix richness or seeding density but there was a significant positive effect of richness on ladybird beetle abundance. Seeding density had a significant positive effect on ground beetle and spider species richness and Shannon-Weaver diversity. These results may be related to differences in the plant species composition and relative amount of grass basal cover among the treatments rather than richness.Published by Elsevier B.V.

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“…The biodiversity of insects within soybean fields is influenced by the surrounding landscape, as species richness of some insect taxa increases when a field is surrounded by a greater diversity of land-use types (Gardiner et al 2009(Gardiner et al , 2010b. Fields within central Iowa were used in those studies, representing landscapes with limited diversity, primarily surrounded by other soybean and cornfields.…”

Section: Discussionmentioning

confidence: 99%

Survey of Soybean Insect Pollinators: Community Identification and Sampling Method Analysis

Gill

O’Neal

2015

Environmental Entomology

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Soybean, Glycine max (L.) Merrill, flowers can be a source of nectar and pollen for honey bees, Apis mellifera L. (Hymenoptera: Apidae), wild social and solitary bees (Hymenoptera: Apoidea), and flower-visiting flies (Diptera). Our objectives were to describe the pollinator community in soybean fields, determine which sampling method is most appropriate for characterizing their abundance and diversity, and gain insight into which pollinator taxa may contact soybean pollen. We compared modified pan traps (i.e., bee bowls), yellow sticky traps, and sweep nets for trapping pollinators in Iowa soybean fields when soybeans were blooming (i.e., reproductive stages R1-R6) during 2011 and 2012. When all trap type captures were combined, we collected 5,368 individuals and at least 50 species. Per trap type, the most pollinators were captured in bee bowls (3,644 individuals, 44 species), yellow sticky traps (1,652 individuals, 32 species), and sweep nets (66 individuals, 10 species). The most abundant species collected include Agapostemon virescens F. and Lasioglossum (Dialictus) species (Hymenoptera: Halictidae), Melissodes bimaculata Lepeletier (Hymenoptera: Apidae), and Toxomerus marginatus Say (Diptera: Syrphidae). To determine if these pollinators were foraging on soybean flowers, we looked for soybean pollen on the most abundant bee species collected that had visible pollen loads. We found soybean pollen alone or intermixed with pollen grains from other plant species on 29 and 38% of the bees examined in 2011 and 2012, respectively. Our data suggest a diverse community of pollinators-composed of mostly native, solitary bees-visit soybean fields and forage on their flowers within Iowa. RightsWorks produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted. ABSTRACT Soybean, Glycine max (L.) Merrill, flowers can be a source of nectar and pollen for honey bees, Apis mellifera L. (Hymenoptera: Apidae), wild social and solitary bees (Hymenoptera: Apoidea), and flower-visiting flies (Diptera). Our objectives were to describe the pollinator community in soybean fields, determine which sampling method is most appropriate for characterizing their abundance and diversity, and gain insight into which pollinator taxa may contact soybean pollen. We compared modified pan traps (i.e., bee bowls), yellow sticky traps, and sweep nets for trapping pollinators in Iowa soybean fields when soybeans were blooming (i.e., reproductive stages R1-R6) during 2011 and 2012. When all trap type captures were combined, we collected 5,368 individuals and at least 50 species. Per trap type, the most pollinators were captured in bee bowls (3,644 individuals, 44 species), yellow sticky traps (1,652 individuals, 32 species), and sweep nets (66 individuals, 10 species). The most abundant species collected include Agapostemon virescens F. and Lasioglossum (Dialictus) species (Hymenoptera: Halictidae), Melissodes bimaculata Lepeletier (Hymenopt...

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Landscape composition influences the activity density of Carabidae and Arachnida in soybean fields

Cited by 82 publications

References 32 publications

Insect communities in soybeans of eastern South Dakota: The effects of vegetation management and pesticides on soybean aphids, bean leaf beetles, and their natural enemies

Insect communities in soybeans of eastern South Dakota: The effects of vegetation management and pesticides on soybean aphids, bean leaf beetles, and their natural enemies

Responses of predatory invertebrates to seeding density and plant species richness in experimental tallgrass prairie restorations

Survey of Soybean Insect Pollinators: Community Identification and Sampling Method Analysis

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