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An invasive plant provides refuge to native plant species in an intensely grazed ecosystem
Oduor, Ayub M. O.1,2; Long, Huaping2,3; Fandohan, A. Belarmain2,4; Liu, Jian2; Yu, Xiubo2,5
2018-10-01
Source PublicationBIOLOGICAL INVASIONS
ISSN1387-3547
Volume20Issue:10Pages:2745-2751
Corresponding AuthorOduor, Ayub M. O.(Ayub.Oduor@tukenya.ac.ke)
AbstractInvasion by exotic plant species and herbivory can individually alter native plant species diversity, but their interactive effects in structuring native plant communities remain little studied. Many exotic plant species escape from their co-evolved specialized herbivores in their native range (in accordance with the enemy release hypothesis). When these invasive plants are relatively unpalatable, they may act as nurse plants by reducing herbivore damage on co-occurring native plants, thereby structuring native plant communities. However, the potential for unpalatable invasive plants to structure native plant communities has been little investigated. Here, we tested whether presence of an unpalatable exotic invader Opuntia ficus-indica was associated with the structure of native plant communities in an ecosystem with a long history of grazing by ungulate herbivores. Along 17 transects (each 1000m long), we conducted a native vegetation survey in paired invaded and uninvaded plots. Plots that harboured O. ficus-indica had higher native plant species richness and Shannon-Wiener diversity H than uninvaded plots. However, mean species evenness J was similar between invaded and uninvaded plots. There was no significant correlation between native plant diversity and percentage plot cover by O. ficus-indica. Presence of O. ficus-indica was associated with a compositional change in native community assemblages between paired invaded and uninvaded plots. Although these results are only correlative, they suggest that unpalatable exotic plants may play an important ecological role as refugia for maintenance of native plant diversity in intensely grazed ecosystems.
KeywordFacilitation Native-exotic plant interactions Nurse plants Native species diversity Unpalatable exotic plants Nairobi National Park
DOI10.1007/s10530-018-1757-5
WOS KeywordNAIROBI NATIONAL-PARK ; DIVERSITY ; METAANALYSIS ; IMPACTS ; GROVES
Indexed BySCI
Language英语
Funding ProjectInternational Young Scientist Fellowship of the Chinese Academy of Sciences[2012Y1ZA0011] ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI)[2016PE016] ; National Natural Science Foundation of China[312111182]
Funding OrganizationInternational Young Scientist Fellowship of the Chinese Academy of Sciences ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) ; National Natural Science Foundation of China
WOS Research AreaBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS SubjectBiodiversity Conservation ; Ecology
WOS IDWOS:000445069800007
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/52916
Collection中国科学院地理科学与资源研究所
Corresponding AuthorOduor, Ayub M. O.
Affiliation1.Tech Univ Kenya, Dept Appl & Tech Biol, POB 52428-00200, Nairobi, Kenya
2.Int Ecosyst Management Partnership United Nation, 11A Datun Rd, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
4.Natl Univ Agr, Forestry Agroforestry & Biogeog Unit, BP 43, Ketou, Benin
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, 11A Datun Rd, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Oduor, Ayub M. O.,Long, Huaping,Fandohan, A. Belarmain,et al. An invasive plant provides refuge to native plant species in an intensely grazed ecosystem[J]. BIOLOGICAL INVASIONS,2018,20(10):2745-2751.
APA Oduor, Ayub M. O.,Long, Huaping,Fandohan, A. Belarmain,Liu, Jian,&Yu, Xiubo.(2018).An invasive plant provides refuge to native plant species in an intensely grazed ecosystem.BIOLOGICAL INVASIONS,20(10),2745-2751.
MLA Oduor, Ayub M. O.,et al."An invasive plant provides refuge to native plant species in an intensely grazed ecosystem".BIOLOGICAL INVASIONS 20.10(2018):2745-2751.
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