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After a mature apple orchard had been removed by grubbing the trees various experimental treatments (different systems of manuring and ploughing at tw...Read more
The numbers and distribution of lesser snow-geese (Chen caerulescens) and their effects on plant communities were studied in a 40 × 200 km area roughl...Read more
Grazing can significantly impact spatial heterogeneity and conservation value of ecosystems. Earlier work revealed that overgrazing may stimulate pers...Read more