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River assessments are predominantly based on biological metrics and indices selected or designed to integrate the impact of multiple causes of deterio...

Monocultures of Grevillea robusta, a non-gregarious species, grow poorly in South Queensland where the tree occurs naturally. In G. robusta plantation...

Monocultures of G. robusta, a non-gregarious timber species of subtropical rain forest, grow poorly in S. Queensland, where the tree occurs naturally....

Changes in the floristic composition of ungrazed chalk grassland on Foxhole Heath, Breckland, between 1938 and 1971 were considered in relation to cha...

Shallow lakes are important components of the biosphere, but they are also highly vulnerable to damage from human activities in their catchments, such...

Field-grown soyabeans were exposed to 3 levels of SO2 to determine the effects of the exposure upon photosynthesis and stomatal resistance. In plots w...

The following is based largely on the authors' summary. The ecology of Aphis craccivora Koch and subterranean-clover stunt virus [cf. RAE A 58 646] wa...

The serpentine tailings from asbestos mines in southeastern Quebec cover 5.5 km2 and are largely devoid of vegetation. The tailings have a high pH, ve...

Plant virus diseases severely constrain agricultural production world-wide, especially in less developed countries. The use of resistant cultivars may...

A computer model is described which simulates the spread of barley yellow dwarf luteovirus (BYDV) by aphids in winter cereals in SW England. The model...