Effects of the invasive herb<i>Ageratina adenophora</i>on understory plant communities and tree seedling growth in<i>Pinus yunnanensis</i>forests in Yunnan, China

Fu, Denggao; Wu, Xiaoni; Huang, Ning; Duan, Changqun

doi:10.1080/13416979.2018.1429202

Cited by 32 publications

(23 citation statements)

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“…The results demonstrate that there were large differences in the effects of forest type and invasion on the understory vegetation composition and functional characteristics, indicating that the extent of the response of understory vegetation to invasion depends on land cover type. Similar to other studies on the effect of invasion on community composition [12,22,[37][38][39], we found that most of the analysed diversity indices, including S, FRic, FEve, and FDis, were altered by invasion. In subtropical regions of China, fast-growing species, such as coniferous species, are generally considered a pioneer stage of evergreen broadleaf climax forests that enhance the process of succession and improve the development of species diversity [40].…”

Section: Effects Of Invasion On the Understory Community Under Differsupporting

confidence: 90%

Effects of Ageratina adenophora Invasion on the Understory Community and Soil Phosphorus Characteristics of Different Forest Types in Southwest China

Duan

et al. 2020

Forests

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Understanding the influence of invasive species on community composition and ecosystem properties is necessary to maintain ecosystem functions. However, little is known about how understory plant communities and soil nutrients respond to invasion under different land cover types. Here, we investigated the effects of the invasive species Ageratina adenophora on the species and functional diversity of understory communities and on soil phosphorus (P) status in three forest types: CF, coniferous forest; MF, coniferous and broadleaf mixed forest; and EBF, evergreen broadleaf forest. We found that the species and functional diversity indices of the understory community significantly varied by forest type. Among the invaded plots, the greatest decrease in functional diversity (functional richness, functional divergence, and functional dispersion) and biotic homogenization were found in the CF rather than the MF or EBF. In addition, the invasion by A. adenophora significantly increased the soil NaHCO3-extractable inorganic P and organic P in the MF and EBF, respectively, while obviously decreasing the soil maximum P sorption capacity and maximum buffering capacity in the CF. However, the changes in the species and functional attributes of the understory communities were weakly associated with changes in the soil P status, probably because of the different response times to invasion in different forest types. The implication of these changes for ecosystem structure and function must be separately considered when predicting and managing invasion at a landscape scale.

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Section: Effects Of Invasion On the Understory Community Under Differsupporting

confidence: 90%

Effects of Ageratina adenophora Invasion on the Understory Community and Soil Phosphorus Characteristics of Different Forest Types in Southwest China

Duan

et al. 2020

Forests

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“…Biotic invaders resulted in the homogenization of biota at a global scale and thereby affected the environment and ecosystem services indirectly (Pejchar and Mooney, 2009;Shackleton et al, 2019;Bartz and Kowarik, 2019). Socio-economic impacts of invasion are mainly visualized through human health assessment (Rumlerová et al, 2016;Fu et al, 2018;Bartz and Kowarik, 2019). The IAPS, particularly 100 flora and fauna invaders as per GISD (2013), which affect the environment and economy of both terrestrial and aquatic ecosystems, are listed in Table 1.…”

Section: Impacts Of Plant Invasion On Environment Ecosystem Servicesmentioning

confidence: 99%

“…One well documented impact of IAPS is to reduce the biodiversity of native plants, which may have adverse implications for environment functioning, ecosystem services and global climate change (Richardson et al, 2000;Hulme, 2007;Winter et al, 2009;Vilà et al, 2009Vilà et al, , 2011Pysˇek and Richardson, 2010;Pysˇek et al 2012;Fu et al, 2018;Schindler et al, 2018;Heshmati et al, 2019). Interestingly, the role of IAPS, in native biodiversity loss is widely acknowledged.…”

Section: Environmental Impacts Of the Iapsmentioning

confidence: 99%

“…Physiognomy of IAPS and the intracellular elemental composition of their plant parts can remarkably alter the diversity attributes of native species (Fu et al, 2018). For example, herbs, like Ageratina adenophora and Eupatorium, tend to alter the species diversity of understorey vegetation of pine forests owing to their high specific leaf area and foliar phosphorus and nitrogen contents and thus may act as ecological indicators of species diversity loss (Fu et al, 2018). Fu et al (2018) further observed that native species with low leaf nitrogen concentration will disappear first from Ageratina adenophora invaded ecosystems.…”

Section: Ecological Indicator Perspectives Of the Iapsmentioning

confidence: 99%

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Invasive alien plant species: Their impact on environment, ecosystem services and human health

Kumar

Singh

2020

Ecological Indicators

276

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Ecological perturbations caused by biotic invasion have been identified as a growing threat to global sustainability. Invasive alien plants species (IAPS) are considered to be one of the major drivers of biodiversity loss and thereby altering the ecosystem services and socio-economic conditions through different mechanisms. Although the ecological impacts of IAPS are well documented, there is a dearth of studies regarding their economic quantification, livelihood considerations, biotechnological prospects (phytoremediation, bioenergy, phytosynthesis of nanoparticles, biomedical, industrial applications etc.) and human health risk assessments of IAPS. In this context, the current panoramic review aimed to investigate the environmental, socio-ecological and health risks posed by IAPS as well as the compounded impact of IAPS with habitat fragmentation, climate and land use changes. To this end, the need of an integrated trans-disciplinary research is emphasized for the sustainable management of IAPS. The management prospects can be further strengthened through their linkage with geo-spatial technologies (remote sensing and GIS) by mapping and monitoring the IAPS spread. Further, the horizon of IAPS management is expanded to ecological indicator perspectives of IAPS, biosecurity, and risk assessment protocols with critical discussion. Moreover, positive as well as negative implications of the IAPS on environment, health, ecosystem services and socio-economy (livelihood) are listed so that a judicious policy framework could be developed for the IAPS management in order to mitigate the human health implications.

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“…The weed has invaded forests, grasslands and wetlands where it forms mono‐dominant stands and reduces cover and diversity of native plant species (Ding et al ., ; Niu et al ., ; Gao et al ., ; Baral et al ., ). In forest understory, it suppresses growth of tree seedlings and displaces native plant species (Fu et al ., ). Due to its ability to suppress seedling establishment of tree species, it is commonly known as Banmara in Nepal that literally means ‘forest killer’ (Tiwari et al ., ).…”

Section: Impacts Of Invasionmentioning

confidence: 97%

Biology and management of the invasive weed Ageratina adenophora (Asteraceae): current state of knowledge and future research needs

et al. 2019

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Summary Biological invasion is increasing worldwide and the management of invasive species is becoming an important priority for vegetation managers. Success of invasive species management depends on a thorough understanding of the biology of the organism in question and the effectiveness of current management efforts, in order to identify the best practices for management improvement. In this review, we synthesised current biological knowledge of a noxious invasive weed Ageratina adenophora to identify knowledge gaps and assessed management efforts to identify best practices. Finally, we proposed some priority areas for future research to fill knowledge gaps and improve management. Our analysis showed that A. adenophora has already invaded 40 countries, mainly in Asia, Oceania, Africa and Europe. Phenotypic plasticity, allelopathic interference and invasion‐mediated changes in the soil microbial community are the proposed mechanisms that facilitate rapid spread of this weed. However, allelopathy as a mechanism of invasion success of this weed has not been supported by ecologically meaningful experiments. Though mechanical, chemical and biological control measures have been used, their success remains limited and the weed continues to spread in new regions. Among seven biological control agents examined to date, gall fly (Procecidochares utilis) and leaf spot fungus (Passalora ageratinae) have been effective in limited areas to suppress growth of this weed. Some perennial native grasses (e.g. Setaria sphacellata and Lolium perenne) have shown potential to competitively suppress A. adenophora. In conclusion, understanding the invasion mechanisms, exploring further to identify effective biological control agents, combined with approaches of ecological restoration, could help in the management of this weed.

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Effects of the invasive herbAgeratina adenophoraon understory plant communities and tree seedling growth inPinus yunnanensisforests in Yunnan, China

Cited by 32 publications

References 47 publications

Effects of Ageratina adenophora Invasion on the Understory Community and Soil Phosphorus Characteristics of Different Forest Types in Southwest China

Effects of Ageratina adenophora Invasion on the Understory Community and Soil Phosphorus Characteristics of Different Forest Types in Southwest China

Invasive alien plant species: Their impact on environment, ecosystem services and human health

Biology and management of the invasive weed Ageratina adenophora (Asteraceae): current state of knowledge and future research needs

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