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Deserts are one of the least invaded ecosystems by plants, possibly due to naturally low levels of soil nitrogen. Increased levels of soil nitrogen ca...
Read moreH. rufa was the only herbaceous plant to prosper under annual burning in derived savana in N.W. Costa Rica. Under favourable conditions it could be &g...
Read moreThe 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...
Read moreThe number of migratory geese spending winter and early spring in the Netherlands increased from 100 000 in the early 1960s to almost 600 000 in the 1...
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