An Improved Backpack Motor Fan for Suction Sampling of Insect Populations1

Dietrick, E. J.

doi:10.1093/jee/54.2.394

Cited by 204 publications

(86 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…All seedlings that germinated during the studies were removed by hand from the plots. At approximately 2-week intervals in 1975, two 046 m2 sections of each plot were enclosed and all insects trapped within the fine mesh enclosures were removed by suction using a Dietrick sampler (Dietrick, 1961). Individual leaflets were sampled and scored according to the amount of feeding damage present on a scale of 0-6 (0 for no damage; 6, complete leaflet removal).…”

Section: Methodsmentioning

confidence: 99%

Herbivorous insects colonising cyanogenic and acyanogenic Trifolium repens

et al. 1979

View full text Add to dashboard Cite

SUMMARYInsect herbivores colonizing cyanogenic and acyanogenic white clover plants were investigated. With the exception of aphids, the herbivores studied were infrequent visitors and failed to discriminate between the two phenotypes. Aphids, however, were two to three times more abundant on acyanogenic than cyanogenic plants. Evidence of visible insect feeding damage was identical for both phenotypes. The evidence suggests that the trait of cyanogenesis confers protection against herbivory by aphids and, possibly, other insects. Such protection would be most important at the seedling stage, but feeding of the insects studied would not lead directly to seedling mortality of either phenotype. Instead, mortality of weakened seedlings may result from other causes later in the season.

show abstract

Section: Methodsmentioning

confidence: 99%

Herbivorous insects colonising cyanogenic and acyanogenic Trifolium repens

et al. 1979

View full text Add to dashboard Cite

show abstract

“…Samples were taken at three sites within each field. At each site, two 0.5-m 2 samples were taken using a D-vac insect suction sampler, 24 each sample comprising five subsamples of 0.1-m 2 and 10 s duration. Samples were then pooled by site.…”

Section: Nestling Dietmentioning

confidence: 99%

Breeding ecology of farmland YellowhammersEmberiza citrinella

Stoate¹,

Moreby²,

Szczur³

1998

Bird Study

View full text Add to dashboard Cite

“…While Brooks et al (2003) use pitfall trapping to sample the activity densities of these taxa, we adopt a suction-sampling approach to sample the arthropods that inhabit the plant surface, litter and soil surface (Stewart & Wright 1995). Suction sampling is a long-established method of directly estimating the densities of epigeal arthropods in grassland and arable crops (see, for example, Dietrick 1961;Thornhill 1978;Southwood & Henderson 2000). It is recognized, however, that, whereas smaller arthropods, such as Linyphiidae (Araneae), are sampled efficiently (Stewart & Wright 1995), larger arthropods, such as the larger Lycosidae (Araneae) (Mommertz et al 1996) and Carabidae, may be undersampled.…”

Section: Introductionmentioning

confidence: 99%

Invertebrate responses to the management of genetically modified herbicide–tolerant and conventional spring crops. II. Within-field epigeal and aerial arthropods

Haughton

Champion²,

Hawes

et al. 2003

Phil. Trans. R. Soc. Lond. B

133

108

View full text Add to dashboard Cite

The effects of the management of genetically modified herbicide-tolerant (GMHT) crops on the abundances of aerial and epigeal arthropods were assessed in 66 beet, 68 maize and 67 spring oilseed rape sites as part of the Farm Scale Evaluations of GMHT crops. Most higher taxa were insensitive to differences between GMHT and conventional weed management, but significant effects were found on the abundance of at least one group within each taxon studied. Numbers of butterflies in beet and spring oilseed rape and of Heteroptera and bees in beet were smaller under the relevant GMHT crop management, whereas the abundance of Collembola was consistently greater in all GMHT crops. Generally, these effects were specific to each crop type, reflected the phenology and ecology of the arthropod taxa, were indirect and related to herbicide management. These results apply generally to agriculture across Britain, and could be used in mathematical models to predict the possible long-term effects of the widespread adoption of GMHT technology. The results for bees and butterflies relate to foraging preferences and might or might not translate into effects on population densities, depending on whether adoption leads to forage reductions over large areas. These species, and the detritivore Collembola, may be useful indicator species for future studies of GMHT management.

show abstract

An Improved Backpack Motor Fan for Suction Sampling of Insect Populations1

Cited by 204 publications

References 0 publications

Herbivorous insects colonising cyanogenic and acyanogenic Trifolium repens

Herbivorous insects colonising cyanogenic and acyanogenic Trifolium repens

Breeding ecology of farmland YellowhammersEmberiza citrinella

Invertebrate responses to the management of genetically modified herbicide–tolerant and conventional spring crops. II. Within-field epigeal and aerial arthropods

Contact Info

Product

Resources

About