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Use of exotic plants to control Spartina alterniflora invasion and promote mangrove restoration.

Zhou T, Liu S, Feng Z, Liu G, Gan Q, Peng S - Sci Rep (2015)

Bottom Line: I: In a mangrove area invaded by S. alterniflora, exotic S. apetala and S. caseolaris grew rapidly due to their relatively fast-growing character and an allelopathic effect.III: The growth of native mangrove was promoted because exotic plant seedlings cannot regenerate in the understory shade, whereas native mesophytic mangrove plants seedlings can grow; when the area experiences extreme low temperatures in winter or at other times, S. apetala dies, and native mangrove species grow to restore the communities.This model has important implications for addressing the worldwide problems of "how to implement the ecological control of invasion using exotic species" and "how to concurrently promote native community restoration during the control of exotic invasion".

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275.

ABSTRACT
In coastal China, the exotic invasive Spartina alterniflora is preventing the establishment of native mangroves. The use of exotic species, control of exotic plant invasion, and restoration of native plant communities are timely research issues. We used exotic Sonneratia apetala Buch.-Ham and S. caseolaris (L.) Engl. to control invasive Spartina alterniflora Loisel through replacement control for five years, which concurrently promoted the restoration of native mangroves. This process includes three stages. I: In a mangrove area invaded by S. alterniflora, exotic S. apetala and S. caseolaris grew rapidly due to their relatively fast-growing character and an allelopathic effect. II: Fast-growing S. apetala and S. caseolaris eradicate S. alterniflora through shading and allelopathy. III: The growth of native mangrove was promoted because exotic plant seedlings cannot regenerate in the understory shade, whereas native mesophytic mangrove plants seedlings can grow; when the area experiences extreme low temperatures in winter or at other times, S. apetala dies, and native mangrove species grow to restore the communities. This model has important implications for addressing the worldwide problems of "how to implement the ecological control of invasion using exotic species" and "how to concurrently promote native community restoration during the control of exotic invasion".

No MeSH data available.


Understory plant density of native mangrove species in different types of plots (plants/m2, mean ± S.E.):(I) Spartina alterniflora; (II) Sonneratia apetala controls S. alterniflora; (III) S. apetala + S. caseolaris control S. alterniflora; and (IV) 6–8-year-old mature S. apetala plot.
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f8: Understory plant density of native mangrove species in different types of plots (plants/m2, mean ± S.E.):(I) Spartina alterniflora; (II) Sonneratia apetala controls S. alterniflora; (III) S. apetala + S. caseolaris control S. alterniflora; and (IV) 6–8-year-old mature S. apetala plot.

Mentions: Four native mangrove species, including Acanthus ilicifolius, Kandelia candel, Aegiceras corniculatum, and Derris trifoliata, were found in the plots (Fig. 8). In particular, the types and numbers of native mangrove species in plot III were higher than those in plots I and II, indicating that the mixed-species planting of S. caseolaris and S. apetala can effectively restore native mangrove. In addition, native mangrove plants were found in plot IV, showing that S. apetala will not occupy the habitat forever.


Use of exotic plants to control Spartina alterniflora invasion and promote mangrove restoration.

Zhou T, Liu S, Feng Z, Liu G, Gan Q, Peng S - Sci Rep (2015)

Understory plant density of native mangrove species in different types of plots (plants/m2, mean ± S.E.):(I) Spartina alterniflora; (II) Sonneratia apetala controls S. alterniflora; (III) S. apetala + S. caseolaris control S. alterniflora; and (IV) 6–8-year-old mature S. apetala plot.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4542654&req=5

f8: Understory plant density of native mangrove species in different types of plots (plants/m2, mean ± S.E.):(I) Spartina alterniflora; (II) Sonneratia apetala controls S. alterniflora; (III) S. apetala + S. caseolaris control S. alterniflora; and (IV) 6–8-year-old mature S. apetala plot.
Mentions: Four native mangrove species, including Acanthus ilicifolius, Kandelia candel, Aegiceras corniculatum, and Derris trifoliata, were found in the plots (Fig. 8). In particular, the types and numbers of native mangrove species in plot III were higher than those in plots I and II, indicating that the mixed-species planting of S. caseolaris and S. apetala can effectively restore native mangrove. In addition, native mangrove plants were found in plot IV, showing that S. apetala will not occupy the habitat forever.

Bottom Line: I: In a mangrove area invaded by S. alterniflora, exotic S. apetala and S. caseolaris grew rapidly due to their relatively fast-growing character and an allelopathic effect.III: The growth of native mangrove was promoted because exotic plant seedlings cannot regenerate in the understory shade, whereas native mesophytic mangrove plants seedlings can grow; when the area experiences extreme low temperatures in winter or at other times, S. apetala dies, and native mangrove species grow to restore the communities.This model has important implications for addressing the worldwide problems of "how to implement the ecological control of invasion using exotic species" and "how to concurrently promote native community restoration during the control of exotic invasion".

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275.

ABSTRACT
In coastal China, the exotic invasive Spartina alterniflora is preventing the establishment of native mangroves. The use of exotic species, control of exotic plant invasion, and restoration of native plant communities are timely research issues. We used exotic Sonneratia apetala Buch.-Ham and S. caseolaris (L.) Engl. to control invasive Spartina alterniflora Loisel through replacement control for five years, which concurrently promoted the restoration of native mangroves. This process includes three stages. I: In a mangrove area invaded by S. alterniflora, exotic S. apetala and S. caseolaris grew rapidly due to their relatively fast-growing character and an allelopathic effect. II: Fast-growing S. apetala and S. caseolaris eradicate S. alterniflora through shading and allelopathy. III: The growth of native mangrove was promoted because exotic plant seedlings cannot regenerate in the understory shade, whereas native mesophytic mangrove plants seedlings can grow; when the area experiences extreme low temperatures in winter or at other times, S. apetala dies, and native mangrove species grow to restore the communities. This model has important implications for addressing the worldwide problems of "how to implement the ecological control of invasion using exotic species" and "how to concurrently promote native community restoration during the control of exotic invasion".

No MeSH data available.