Genetic effects of historical anthropogenic disturbance on a long-lived endangered tropical tree Vatica mangachapoi

The endangered Vatica mangachapoi , a long-lived, tropical tree with economic and ecological importance found in Hainan, China, was used to assess the hypothesis that historical human activities in Hainan’s tropical rain forest could have negative effects on the genetic diversity of V. mangachapoi ....

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Bibliographic Details
Published in:Journal of forestry research 2018-03, Vol.29 (2), p.291-299
Main Authors: Dai, Zhicong, Si, Chuncan, Zhai, Deli, Huang, Ping, Qi, Shanshan, Lin, Ying, Wang, Ruiping, Zhong, Qiongxin, Du, Daolin
Format: Article
Language:English
Subjects:
Anthropogenic factors
Biodiversity
Biological diversity
Biomedical and Life Sciences
Differentiation
Disturbance
Ecological monitoring
Endangered plants
Forestry
Genetic diversity
Genetic effects
Human influences
Life Sciences
Natural populations
Original Paper
Plant diversity
Population genetics
Populations
Protection and preservation
Rain
Rain forests
Rainforests
Species diversity
Trees
Tropical forests
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Summary:The endangered Vatica mangachapoi , a long-lived, tropical tree with economic and ecological importance found in Hainan, China, was used to assess the hypothesis that historical human activities in Hainan’s tropical rain forest could have negative effects on the genetic diversity of V. mangachapoi . Three hundred and twenty individuals from 11 natural populations—which were classified into three groups according to levels of disturbance—were sampled and analyzed with ISSR markers. Although genetic diversity of V. mangachapoi is high at the species level, it is relatively low within populations. A significant genetic differentiation occurs among different disturbance levels. Significant isolation-by-distance indicated relevant historical anthropogenic changes. Our findings showed that historical human disturbances significantly increase the genetic differentiation and slightly decrease the genetic diversity of long-lived tree V. mangachapoi . Relevant targeting conservation actions were recommended.
ISSN:1007-662X
1993-0607
DOI:10.1007/s11676-017-0470-z