The choice of seed tracking method influenced fate of beech seeds dispersed by rodents
Tóm tắt
We tracked seeds of European beech (Fagus sylvatica) dispersed by rodents in Gorzowska Forest (western Poland). We used two seed labeling methods, marking with UV-fluorescent powder and with plastic tags, to test whether using different marking methods influences results of seed tracking. The removal rates did not differ among seeds marked with UV-powder, seeds labeled with tags, and unmanipulated seeds. We found 78 % of removed seeds marked with tags, but only 25 % of UV-marked seeds. The consumption rates of tagged and UV-marked seeds were dramatically different: rodents ate 83 % of the former and 26 % of the later. The average dispersal distance was larger for seeds marked with UV-powder than for tagged seeds. Our findings suggest that the choice of seed tracking method might influence results of seed dispersal studies.
Tài liệu tham khảo
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