Restoration of invaded Cape Floristic Region riparian systems leads to a recovery in foliage-active arthropod alpha- and beta-diversity

Maoela, Malebajoa A.; Roets, Francois; Jacobs, Shayne M.; Esler, Karen J.

doi:10.1007/s10841-015-9842-x

Cited by 16 publications

(8 citation statements)

References 64 publications

(61 reference statements)

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“…Moreover, our results show that, in the Iberian Peninsula, the abundance and species richness of feeding guilds tended to be significantly reduced by the presence of C. edulis. These results agree with previous research which found that introduced plants can alter the trophic diversity in invaded areas (Procheş et al 2008;Moroń et al 2009;Maoela et al 2016;McCary et al 2016;Rodríguez et al 2020). The reduction in the abundance of herbivores, omnivores and predators in the areas invaded by C. edulis compared with those without C. edulis is striking.…”

Section: Trophic and Taxonomic Groupssupporting

confidence: 92%

“…However, in the Iberian Peninsula, we found that the presence of C. edulis significantly reduced only the abundance, while it increased the values of the Shannon, Simpson and Pielou evenness indices. Some authors have noted that introduced plants may induce a negative effect on the arthropod communities (Procheş et al 2008;Dibble et al 2013;Van der Colff et al 2015;Maoela et al 2016). However, this does not seem to be the case for C. edulis (Rodríguez et al 2019).…”

Section: Alpha-diversitymentioning

confidence: 99%

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Biogeographical comparison of terrestrial invertebrates and trophic feeding guilds in the native and invasive ranges of Carpobrotus edulis

Rodríguez¹,

Novoa²,

Cordero‐Rivera³

et al. 2020

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Plant invasions impact on biodiversity by altering the composition of native communities by disrupting taxonomic and functional diversity. Non-native plants are often released from their natural enemies, which might result in a reduction of the attack of primary consumers. However, they can also be exposed to the attack of new herbivores that they might not be able to tolerate. Hence, invertebrate communities can be influenced by invasive non-native plants, which in turn modify interactions and change environmental conditions. In this study, we examined the compositional and trophic diversity of invertebrate species, comparing ecosystems with and without the plant species Carpobrotus edulis in coastal areas in its native (South Africa) and introduced (Iberian Peninsula) ranges. Results show that C. edulis has a clear impact on invertebrate communities in its non-native range, reducing their abundance in invaded areas, and particularly affecting certain trophic groups. Invasive C. edulis also alters the invertebrate diversity by not only reducing abundance but also by altering species composition. Overall, the physical dominance of C. edulis modifies the co-occurrence of invertebrate assemblages, reducing the number of trophic groups and leading to substantial effects on primary consumers. Results suggest that the lack of natural enemies might be an important driver of the expansion of C. edulis in its introduced range. Further work is needed to examine long-term changes caused by non-native plants on invertebrate assemblages and the subsequent modification of biological interactions.

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Section: Trophic and Taxonomic Groupssupporting

confidence: 92%

Section: Alpha-diversitymentioning

confidence: 99%

Biogeographical comparison of terrestrial invertebrates and trophic feeding guilds in the native and invasive ranges of Carpobrotus edulis

Rodríguez¹,

Novoa²,

Cordero‐Rivera³

et al. 2020

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“…In this sense, leaf N content is an important driver of arthropod population dynamics in A. mearnsii stands (Maoela et al 2016a). Nevertheless, arthropod assemblages in the native community can be progressively recovered after the removal of the exotic (Maoela et al 2016b). On the other hand, Eichhorn et al (2011) indicated that the artificial damage induced to the leaves of A. dealbata activated the production of extra-floral nectaries.…”

Section: Macrofaunamentioning

confidence: 99%

Here to stay. Recent advances and perspectives about Acacia invasion in Mediterranean areas

Souza‐Alonso

Rodríguez

González

et al. 2017

Annals of Forest Science

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Key message The above-and belowground impacts due to Acacia invasions have been described in detail over the last 25 years. Future research should focus on the early detection and prevention of new Acacia introductions and on a cost-effective and sustainable management of the novel ecosystems resulting from invasions.• Context Invasive alien plants (IAPs) strongly alter ecosystems reducing biodiversity, modifying ecosystem services and increasing negative impacts at social and economic level. Among invasive taxa, Acacia is a highly problematic genus worldwide. In fact, almost 500 papers have been published on several aspects of Acacia invasions for the last 25 years.• Aims We aim at reviewing the current knowledge on the consequences of the invasion by Acacia genus in Mediterranean ecosystems. We also collect and propose different approaches for the management and recovery of invaded areas and suggest future perspectives on Acacia research. • Methods We compile, summarise and discuss recent findings on physicochemical, ecological, microbiological and socioeconomic aspects of invasion related to Australian acacias (Acacia dealbata, Acacia longifolia, Acacia mearnsii, Acacia saligna and Acacia melanoxylon) focusing on Mediterranean areas.• Results Acacia invasion generally entails soil physicochemical alterations and changes in microbial function and structure. Consequences such as the decreased biodiversity, altered ecosystem structure, larger seed banks dominated by invasive species, new biotrophic relationships or alterations in water availability and fire regimes suggest that acacias are locally creating novel ecosystems.• Conclusions Forecasting invasions, modelling and managing ecosystems dominated by acacias are challenging tasks that should be addressed in the future, since climatic conditions and intensification in land uses are increasing the likelihood of Acacia invasions in Mediterranean areas. Unsuccessful management actions suggest that restoration should be meticulously monitored, but the magnitude of invasion or the inconsistency of economic investment indicate that eradication is often unfeasible. Alternatively, novel integrative and cost-effective solutions including the collaboration of society, politicians and stakeholders are necessary to prevent new introductions and achieve sustainable control of acacias. There is a growing interest in applied research on the valorisation or novel uses for acacias and their residues that result in economic benefits.

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“…For example, in the hyperdiverse fynbos biome of South Africa, the removal of invasive A. mearnsii trees from riparian zones, and the subsequent recovery of native plant diversity, helped to recover both alpha and beta arthropod diversity (Maoela et al , 2016). However, as recently shown, pathogen accumulation on a highly invasive grass in the US may also help to significantly reduce the fitness of invasive populations in the future (Stricker et al , 2016).…”

Section: Implications For Biological Control Of Non-native Treesmentioning

confidence: 99%

“…The physical removal of invasive trees and the active rehabilitation of natural biotic communities have been suggested as a more effective invasion management strategy than relying on enemy accumulation over time ( Parker et al , 2006 ). For example, in the hyperdiverse fynbos biome of South Africa, the removal of invasive A. mearnsii trees from riparian zones, and the subsequent recovery of native plant diversity, helped to recover both alpha and beta arthropod diversity ( Maoela et al , 2016 ). However, as recently shown, pathogen accumulation on a highly invasive grass in the US may also help to significantly reduce the fitness of invasive populations in the future ( Stricker et al , 2016 ).…”

Section: Implications For Biological Control Of Non-native Treesmentioning

confidence: 99%

Ecological disequilibrium drives insect pest and pathogen accumulation in non-native trees

Crous¹,

Burgess²,

Roux³

et al. 2016

AoB PLANTS

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Non-native plant invasions represent ecological disequilibrium situations, that is, the immediate breakdown of historically co-evolved interactions once introduced into novel environments. Globalization has led to increased transfer in organisms between countries. Native enemies also undergo host expansions onto non-native plants. Ecological disequilibrium conditions can thus be expected to change unpredictably over time. By retrospectively analysing the insect pest and pathogen accumulation on established non-native trees in South Africa, we review the eco-evolutionary background that may help to explain and predict variation in ecological disequilibrium conditions in non-native trees.

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Restoration of invaded Cape Floristic Region riparian systems leads to a recovery in foliage-active arthropod alpha- and beta-diversity

Cited by 16 publications

References 64 publications

Biogeographical comparison of terrestrial invertebrates and trophic feeding guilds in the native and invasive ranges of Carpobrotus edulis

Biogeographical comparison of terrestrial invertebrates and trophic feeding guilds in the native and invasive ranges of Carpobrotus edulis

Here to stay. Recent advances and perspectives about Acacia invasion in Mediterranean areas

Ecological disequilibrium drives insect pest and pathogen accumulation in non-native trees

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