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Mean adult bee populations were 18 000 in late May, 37 000 in early June and 13 000 in late September, while mean brood populations were 15 000 in lat...
Read moreThe life cycle of A. sylvestris (which dominates disturbed grasslands on road verges and river dikes) was analysed to examine possible causes of its d...
Read moreRecent reports on bee health suggest that sublethal doses of pesticides have negative effects on wild bee reproduction and ultimately on their populat...
Read moreInterference between individuals was investigated in monocultures and mixtures of 3 weed species, Bidens chinensis, Eleutheranthera ruderalis and Trid...
Read moreThe signal crayfish Pacifastacus leniusculus is an invasive species in Sweden, threatening the red-listed nobel crayfish Astacus astacus through sprea...
Read moreTetranychus pacificus and Eotetranychus willamettei are herbivore pests of grapevines in California. The 2 pests share a common and often effective ph...
Read moreThe seasonal phenology of A. glycines was studied in soyabeans at 15 sites on Sumatra. A. glycines densities peaked in the vegetative plant stage and ...
Read moreA phycitid moth, Cactoblastis cactorum, was released in Kruger National Park (KNP), South Africa, during 1988 in an attempt to control O. stricta biol...
Read moreRestoration of degraded grasslands through active revegetation often involves re-establishing populations of native grasses, which must withstand incr...
Read moreSpiders form a major component of the generalist predator fauna, potentially able to restrict pest population growth, but their populations may be foo...
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