Following the introduction of new host plants, rapid evolutionary changes in invasive
phytophagous insects can sometimes result in sympatric speciation. The underlying …

Only recently has it been formally acknowledged that native species can occasionally reach
the status of 'pest'or 'invasive species' within their own native range. The study of such …

Occasionally, exotic plant introductions lead to the emergence of an invasive insect within its
native geographical range. Such emergence could be explained by a pre-adaptation of the …

The ability of disease-causing bacteria to synergise infection by the entomopathogen
Metarhizium of larvae of Costelytra giveni, a New Zealand native scarab, has been …

In the field of invasion ecology, the determination of a species' environmental tolerance, is a
key parameter in the prediction of its potential distribution, particularly in the context of global …

Predicting the spread and potential impacts of biological invasions is vital to management
and policy decision-making. For much of North America, cold temperatures dictate portions …

New Zealand has several insect pasture pests which cause economic losses of between
$1.7 B and $2.3 B annually in the dairy, and 'sheep and beef'industries. Research on grass …

Grass grub (Costelytra giveni)(Coleoptera: Scarabaeidae), an endemic pest of improved
pasture in New Zealand, is a damaging root herbivore which lives in soils for most of its life …