Different species of forest trees exhibited great diversity in seed features, and rodents might take different tactics to handle and disperse them. In September 2011, to understand the discriminatory handling by rodents on sympatric seeds, seeds of four plant species, Quercus variabilis, Prunus armeniaca, P. davidiana, and P. persica, were released and tracked in a temperate forest in Yugong area of Jiyuan, Henan, north China. Results showed that: (1) seed removal rates of acorn (Q. variabilis), wild apricot (P. armeniaca) and wild peach (P. davidiana) differed significantly, while almost all (99%) peach seeds (P. persica) remained in situ; (2) acorns (55%) were eaten more than wild apricot (4%) and wild peach (0%), whereas seeds of wild apricot (62%) were scattered-hoarded more than wild peach (13%) and acorns (36%); hull thickness exerted a nonlinear influence on eating and scatter-hoarding; (3) rodents transported wild peach seeds farther (3.81 m ± 2.44 SE) than wild apricot seeds (3.41 m ± 2.05) and acorns (2.49 m ± 2.37); (4) rodents buried multiple wild apricot seeds in some caches, but seeds of wild peach and acorn were stored singly. Results indicated that, for sympatric seeds, rodents would adopt discriminatory processing and storing strategies in eating, burying, dispersal and cache size. Seeds with medium hull thickness were more likely to be dispersed and survived, and consequently have higher probability of future germination and seedling establishment.
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Citation
Zhang Y-F, Wang C, Tian S-L, Lu J-Q (2014). Dispersal and hoarding of sympatric forest seeds by rodents in a temperate forest from northern China. iForest 7: 70-74. - doi: 10.3832/ifor1032-007
Academic Editor
Massimo Faccoli
Paper history
Received: May 01, 2013
Accepted: Sep 07, 2013
First online: Nov 18, 2013
Publication Date: Apr 02, 2014
Publication Time: 2.40 months
© SISEF - The Italian Society of Silviculture and Forest Ecology 2014
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