A subset of 76 MSTs that showed changes in abundance in field plants only, or between field and cabinet stress treatment samples, were subjected to HCA.
Differences in predator-days were not related to densities of greenhouse whitefly-days but to predator abundance in field surroundings.
Increasing flower abundance in field margins tended to decrease aphid densities and significantly increased densities of natural enemies, especially of lady beetles, parasitoids, lacewings and aphid gall midges.
The most parsimonious models of both measurements of species richness and organism abundance at field level were full models without the fixed term β2 and without random terms b2 and b3.The most parsimonious model of species richness and organism abundance at farm level was the full model without random terms b1, b3 and b4.
An intensive study of hares, rabbits and the dynamics of pastures over two grazing seasons was undertaken, in order to understand the environmental factors associated with hare and rabbit abundance at field level.
To confirm the identity of the end-members we also investigated relationships between their abundance and field cover data collected at 54 sample sites using a step-point technique.
The presence of complex edge habitat (presence of at least two trees >1.5 m) led to higher avian abundance within fields, which in turn led to reduced pest insect populations at sampling points close to the field edge.
Six mRNAs (encoding a germin-like protein, mannose-binding lectin, two lipoxygenases, xyloglucan endotransglycosylase and peroxidase) were verified to be preferentially present in roots by analyzing in detail their abundance during field-grown plant and fruit development.
Geographical information systems and logistic regression analysis were used to study the distribution of infected human cases and their proximity to water bodies, vegetation abundance, agricultural fields and housing density classified as high/low density urban constructions.
For example, P. pipistrellus activity decreased with increasing insect abundance above fields with a high proportion of woody vegetation cover and built-up area (Fig. 3a, b).
