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It is generally accepted that conservation of natural heritage is important to people, communities, and the environment. However, invertebrate species...
Read moreButterflies are one of the few insect groups that can be monitored effectively and have the potential to develop national and Europe-wide trends in ab...
Read moreThe native grass D. fusca has become an important weed in rice fields in temperate Australia since rice cultivation began there in 1922. Field and gla...
Read moreA study was conducted during 1990-96 to evaluate the reliability of aerial surveys to monitor trends in the breeding population density of ptarmigan L...
Read moreFlight phenologies of the migrant aphid Rhopalosiphum padi, as indicated by suction trap catches throughout France in 1978-88, were compared using mul...
Read moreIt is generally thought that the intensification of farming will result in higher disease prevalences, although there is little specific modelling tes...
Read moreThe population dynamics of the annual weed Emex australis are described for 3 sites in south-eastern Australia. A graphical test showed a random spati...
Read moreObservations were made in southern England in 1970-71 on aphid populations infesting the aerial shoots of spring cereals. Aphids mainly Acyrthosiphon ...
Read moreThe viable weed seed content of the surface soil at 78 sites in the upper Belize Valley, British Honduras, averaged 6488 seeds/m2 and included 54 spec...
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...
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