Effects of the cultivation of genetically modified Bt crops on nontarget soil organisms - Microbial Ecology in Sustainable Agroecosystems - page 198

Table 8.8 Summary of the Effects of Cultivation with Bt Crops or Amendment with Bt Proteins on Microarthropods (continued)

Organism/activity
tested

Bt plant/experimental
variable Species Study location Protein Effect on organism(s) Source

Collembola Folsomia candida

Heteromurus
nitidus
Sinella coeca

Laboratory Fed dried leaves of Bt

and non- Bt maize

Cry1Ab No effect on survival;

species-specific effects
in distributions and
feeding preferences

Bakonyi et al.
(2006)

Collembola Folsomia candida Soil microcosm Fed leaves of Bt maize

(Events Bt 11 and
MON810) and non- Bt
isolines

Cry1Ab No significant effect on

survival and
reproduction

Clark and
Coats (2006)

Isopods Armadillidium

nasatum
Trachelipus rathkii

Laboratory Fed purified protein or

leaves of Bt (Events Bt
11 and MON810) and
non- Bt maize

Cry1Ab No adverse effects of

Bt on survival and
growth

Clark et al.
(2006)

Collembola
Mites

Natural
populations

Laboratory Cultivation of Bt and

non- Bt maize in pots

Cry1Ab Lower collembolan

abundance and
higher mite
populations under Bt
maize

Griffiths et
al. (2006)

Collembola Natural

populations

Field Cultivation of Bt and

non- Bt maize

Cry1Ab No differences in

population density

Lang et al.
(2006)

Collembola Protaphorura

armata

Laboratory Fed purified protein or

biomass of Bt and
non- Bt maize

Cry1Ab No effect of purified

protein or biomass of
Bt maize on growth
and reproduction

Heckmann et
al. (2006)

Field Cultivation of Bt and

non- Bt maize

Cry1Ab Minor negative effect

of Bt maize on
microarthropod
abundance in
high-clay soils

Cortet et al.
(2007)

Mites
Collembola

Mite suborder:
Actinedida,
Gamasida,
Oribatida,
Acaridida
Collembola not
identified to
species

(continued)