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Factors affecting the production and survival of lambs, including vulnerability to predation, were studied in a flock of about 850 Blackface hill shee...
Read moreThis paper discusses the recognition, protection and utilization of the wild relatives of domesticated crops that naturally occur in Arizona (USA), wh...
Read moreA critical assessment was made of the use of hemispherical photography in fully-developed wheat and barley canopies. It is concluded that black-and-wh...
Read moreThe effects of temp. on seed dormancy and germination were studied in 11 populations of tetraploid F. pratensis var. apennina from the Italian Alps an...
Read moreSeedlings of cocksfoot populations from Norway and Portugal were planted-out 5 cm apart at the cotyledon stage into boxes equipped with partitions to ...
Read moreThe black-vented shearwater Puffinus opisthomelas is endemic to Mexico and is currently listed as Near Threatened by the IUCN Red List. Ninety-five pe...
Read moreThere is increased global awareness that the oceans are under threat. Marine megafauna such as seabirds, marine turtles, marine mammals, sharks and ra...
Read moreAn understanding of how farming practices in adjacent fields and the dimensions of the hedge and other boundary components affect birds is essential f...
Read moreCocksfoot from Norway and Portugal was grown in controlled environment at 5, 15 or 25°C with 8 h high-intensity light/day with or without a further 16...
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...
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