Arid
DOI10.1016/j.jaridenv.2016.04.007
Impact of two invasive succulents on native-seedling recruitment in Neotropical arid environments
Herrera, Ileana1,2; Ferrer-Paris, Jose R.3; Hernandez-Rosas, Jose I.2,4; Nassar, Jafet M.1
通讯作者Herrera, Ileana ; Nassar, Jafet M.
来源期刊JOURNAL OF ARID ENVIRONMENTS
ISSN0140-1963
EISSN1095-922X
出版年2016
卷号132页码:15-25
英文摘要

Kalanchoe daigremontiana and Stapelia gigantea are two succulent invasive species with potential impacts on recruitment of native vegetation in a protected area of importance for conservation of arid environments in northern South America. We hypothesized that while K. daigremontiana has the potential for inhibiting recruitment of native plants through allelopathic effects, S. gigantea could facilitate recruitment of nurse-dependent native taxa. To explore these contrasting impacts, we designed a comparative study and a transplant experiment. Density of native seedlings and species richness were significantly lower in patches invaded by K. daigremontiana when compared to patches with native vegetation or invaded by S. gigantea, suggesting that native-seedling recruitment is negatively affected by K. daigremontiana and not affected or facilitated by S. gigantea. The experiment did not generate results concordant with those obtained in the comparative study. Seedlings’ recruitment of two selected native species was facilitated by presence of nurse-plants (exotics and natives); however, the magnitude of this effect varied according to the type of nurse-plant, susceptibility to herbivory, and herbivory level. We identify K. daigremontiana as the invasive with top need for management actions, because it has the potential to alter composition and physiognomy of native-plant communities in tropical arid environments. (C) 2016 Elsevier Ltd. All rights reserved.


英文关键词Comparative study Exotic succulent species Field transplant experiment Herbivory Management priorities National park Nurse plants Plant invasion Understory seedling recruitment
类型Article
语种英语
国家Venezuela ; Ecuador
收录类别SCI-E
WOS记录号WOS:000377927600002
WOS关键词KALANCHOE-DAIGREMONTIANA ; PLANT INTERACTIONS ; COMMUNITIES ; FACILITATION ; RESTORATION ; COMPETITION ; ECOSYSTEMS
WOS类目Ecology ; Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/194143
作者单位1.Inst Venezolano Invest Cient, Ctr Ecol, AP 20632, Caracas 1020A, Venezuela;
2.Univ Agr Ecuador, Fac Ciencias Agr, AP 01-09-1248, Guayaquil, Ecuador;
3.Inst Venezolano Invest Cient, Ctr Estudios Bot & Agroforestales, AP 20632, Caracas 1020A, Venezuela;
4.Cent Univ Venezuela, Fac Ciencias, Escuela Biol, AP 47058, Caracas 1041A, Venezuela
推荐引用方式
GB/T 7714
Herrera, Ileana,Ferrer-Paris, Jose R.,Hernandez-Rosas, Jose I.,et al. Impact of two invasive succulents on native-seedling recruitment in Neotropical arid environments[J],2016,132:15-25.
APA Herrera, Ileana,Ferrer-Paris, Jose R.,Hernandez-Rosas, Jose I.,&Nassar, Jafet M..(2016).Impact of two invasive succulents on native-seedling recruitment in Neotropical arid environments.JOURNAL OF ARID ENVIRONMENTS,132,15-25.
MLA Herrera, Ileana,et al."Impact of two invasive succulents on native-seedling recruitment in Neotropical arid environments".JOURNAL OF ARID ENVIRONMENTS 132(2016):15-25.
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