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Endozoochorous seed dispersal by golden snub-nosed monkeys in a temperate forest 被引量:1
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作者 Hui YAO Yanpei BAI +4 位作者 Yuan CHEN Haochun CHEN Wanji YANG Xiangdong RUAN Zuofu XIANG 《Integrative Zoology》 SCIE CSCD 2021年第1期120-127,共8页
Seed dispersal is essential for plant recruitment and the maintenance of biodiversity.Colobine monkeys are primarily folivorous,but they also consume fruits and are often assumed to be seed predators.Although they are... Seed dispersal is essential for plant recruitment and the maintenance of biodiversity.Colobine monkeys are primarily folivorous,but they also consume fruits and are often assumed to be seed predators.Although they are known to be epizoochorous seed dispersers,their role as endozoochorous seed dispersers needs reassessment.We examined potential endozoochory in golden snub-nosed monkeys(Rhinopithecus roxellana)at Dalongtan in Shennongjia National Park,central China,by assessing potential germination of ingested seeds(n=1806,9 species)from fecal samples.Intact seeds were in almost all fecal samples(ranging from 5-130 seeds),and ingested seeds were from small seeded species(seed width<4.5 mm).The 2 most abundant species were Actinidia arguta(73%)and Rosa caudata(15%).The fruits of A.arguta were unripe when ingested(i.e.effective seed predation)and the ingested seeds did not germinate in the trials.Therefore,ingestion of unripe seeds does not lead to effective seed dispersal.However,germination rates of defecated R.caudata(9%)were greater than control seeds(6%and 0%),demon-strating potential endozoochorous seed dispersal.Thus,colobine monkeys do indeed disperse mainly small-seeded from multi-seeded fruits through potential endozoochory and this process enhances the recruitment of seedlings. 展开更多
关键词 ENDOZOOCHORY GERMINATION seed dispersal seed recruitment temperate forest
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