Effects of Thinning on Seed Dispersal by Rodents in Secondary Forest

Autor: YF Zhang
Rok vydání: 2018
Předmět:
DOI: 10.6084/m9.figshare.6850016.v2
Popis: As a common management strategy in forestry production,thinning could have a significantimpact and interference on phytocoenosium and forest animals,and subsequently affect animal-mediatedseed dispersal and forest regeneration. To understand the potential influence of thinning on the process ofrodent-mediated seed dispersal,a study was conducted in April 2012. Seeds of Prunus armeniaca weremarked and tracked in un-thinning and thinning forest in Mt. Wangwu area. The results showed that: 1)the relative density of rodent population drastically reduced from 6. 7% in un-thinning forest to 2. 7% inthinning forest; 2) the density of tree and shrub in thinning forest decreases from 56. 3% to 72. 7% ; 3)seed dispersal rate in un-thinning forest ( half survival time: 2 days) was significantly higher than inthinning forest ( half survival time: 10 days) ; 4) the difference of burying depth between un-thinning for-est ( 4. 3 ± 0. 1) cm and thinning forest ( 3. 9 ± 0. 2) cm was significant; 5) more scatter-hoarded seedswere retrieved and buried again in un-thinning forest ( 20. 3% ) than in thinning forest ( 4. 4% ) . Theseresults suggested that thinning have inevitable influence on plant community structure and the seed dis-persal behavior of rodents,and finally affect the seed fate and seedling recruitment.
Databáze: OpenAIRE