Facilitation of the non-native annual plant Mesembryanthemum crystallinum (Aizoaceae) by the endemic cactus Eulychnia acida (Cactaceae) in the Atacama Desert

Madrigal‐González, Jaime; Alex, P.; Sánchez-Fernández, Leticia A.; Martínez-Tilleria, Karina; Calderón, Jaime

doi:10.1007/s10530-012-0382-y

Cited by 12 publications

(10 citation statements)

References 38 publications

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“…Facilitation can be important among invasive species (i.e. invasional meltdown; Flory and Bauer ), but can also occur between invasive and native species, where the invader may act as either the facilitated (Becerra and Bustamante , Wundrow et al , Madrigal‐González et al ) or even the facilitating species (Sun et al , Traveset and Richardson ). Moreover the relative importance of competition and facilitation for invasion is likely to vary along gradients as well.…”

Section: ) Integrating Facilitation Mechanisms In Invasion Communitymentioning

confidence: 99%

The community ecology of invasive species: where are we and what's next?

2016

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Alien species are continually introduced in most regions of the world, but not all survive and coexist with the resident native species. Approaches analyzing the functional (or phylogenetic) similarity between invasive species and native communities are increasingly employed to infer the processes underlying successful invasions and to predict future invaders. The relatively simple conceptual foundations have made these approaches very appealing and therefore widely used, often leading to confusion and hampering generalizations. We undertook a comprehensive review and synthesis of the functional similarity approach in invasion community ecology to clarify its advantages and limitations, to summarize what has been learned thus far, and to suggest avenues for future improvement. We first present the methodological state of the art and provide general guidelines. Second, by organizing the published literature around seven key questions in invasion ecology we found cumulative evidence that: at large spatial scales phylogenetic relatedness of invasive and native species is a good predictor of invasion success, but a poor predictor of invasion impacts; at fine spatial scales, community resistance to invasion tends to increase with native species diversity and with similarity to the invaders, consistent with patterns emerging from biotic interactions. In general, the processes filtering invaders appear to vary across species’ invasion stage and along environmental gradients. Nonetheless, we found conflicting evidence for differences in community assembly processes between invasive and native species, and between the invader's native and adventive ranges. Finally, we propose four important avenues for overcoming some of the identified methodological and conceptual limitations of the approach, in particular by integrating observational and experimental analyses and by explicitly considering species’ demographic rates and complex biotic interactions. Although the functional similarity approach bears intrinsic limitations, it still offers many opportunities in invasion community ecology at large spatial scales.

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Section: ) Integrating Facilitation Mechanisms In Invasion Communitymentioning

confidence: 99%

The community ecology of invasive species: where are we and what's next?

2016

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“…Based on biomass production, M. nodiflorum , L. mucronata , M. crystallinum , S. glaucus , and R. pictus received facilitation from the C. polygonoides shrubs. The aboveground biomass of M. crystallinum was reported to be 4-fold higher under the influence of Eulychnia acida in the Atacama Desert [ 46 ], and this facilitation was explained by direct and/or indirect positive effects. In agreement with the results obtained in this study, the E. acida retained more water and nutrients which provided more benefits to M. crystallinum [ 46 ].…”

Section: Discussionmentioning

confidence: 99%

“…The aboveground biomass of M. crystallinum was reported to be 4-fold higher under the influence of Eulychnia acida in the Atacama Desert [ 46 ], and this facilitation was explained by direct and/or indirect positive effects. In agreement with the results obtained in this study, the E. acida retained more water and nutrients which provided more benefits to M. crystallinum [ 46 ]. Mesembryanthemum crystallinum performs as C 3 plant in mesic environments but switched to CAM metabolism under drought stress.…”

Section: Discussionmentioning

confidence: 99%

Calligonum polygonoides L. Shrubs Provide Species-Specific Facilitation for the Understory Plants in Coastal Ecosystem

Abd‐ElGawad

Rashad

Abdel-Azeem

et al. 2020

Biology

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Plant facilitation has a pivotal role in regulating species coexistence, particularly under arid environments. The present study aimed to evaluate the facilitative effect of Calligonum polygonoides L. on its understory plants in coastal habitat. Forty Calligonum shrubs were investigated and the environmental data (soil temperature, moisture, pH, salinity, carbon and nitrogen content, and light intensity), vegetation composition, and diversity of associated species were recorded under- and outside canopies. Eight of the most frequent understory species were selected for evaluating their response to the facilitative effect of C. polygonoides. Bioactive ingredients of Calligonum roots were analyzed using gas chromatography-mass spectrometry (GC-MS), and mycorrhizal biodiversity in their rhizosphere soil was also assessed. The effect of Calligonum on understory plants ranged between facilitation and inhibition in an age-dependent manner. Old shrubs facilitated 18 and inhibited 18 associated species, while young shrubs facilitated 13 and inhibited 9 species. Calligonum ameliorated solar radiation and high-temperature stresses for the under canopy plants. Moreover, soil moisture was increased by 509.52% and 85.71%, while salinity was reduced by 47.62% and 23.81% under old and young shrubs, respectively. Soil contents of C and N were increased under canopy. This change in the microenvironment led to photosynthetic pigments induction in the majority of understory species. However, anthocyanin, proline contents, and antioxidant enzyme activities were reduced in plants under canopy. Thirteen mycorrhizal fungal species were identified in the rhizospheric soil of Calligonum with the predominance of Funneliformis mosseae. Thirty-one compounds were identified in Calligonum root extract in which pyrogallol and palmitic acid, which have antimicrobial and allelopathic activities, were the major components. The obtained results demonstrated that facilitation provided by Calligonum is mediated with multiple mechanisms and included a set of interrelated scenarios that took place in a species-specific manner.

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“…The model only considers an environmental severity gradient for one non-resource condition (minimum temperature in mountains) and its direct and indirect effects on competition and facilitation. It could be recalculated, however, for other types of facilitation on other stress gradients, such as attracting nutrients or cooling by providing shade, which are likely to be important in respectively nutrient poor and hot environments, also occurring in mountains ( Callaway and Walker 1997 ; Holmgren and Scheffer 2010 ; Madrigal-González et al . 2013 ; Michalet et al .…”

Section: Discussionmentioning

confidence: 99%

Trade-off between competition and facilitation defines gap colonization in mountains

2015

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Environmental conditions within a disturbance event are often regarded as uniform. There is however large variation in conditions for plant colonisers within one disturbance event, drastically affecting coloniser survival on a scale of centimeters. We provide a model that combines the effect of the surrounding vegetation (negative through competition and positive through facilitation) with environmental conditions along a mountain gradient. Colonisers will be forced to grow closer to the gap edge when environmental conditions (e.g. freezing temperatures) get worse. The model helps predict the distribution of plant invaders and the effect of climate warming on colonisation in mountains.

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Facilitation of the non-native annual plant Mesembryanthemum crystallinum (Aizoaceae) by the endemic cactus Eulychnia acida (Cactaceae) in the Atacama Desert

Cited by 12 publications

References 38 publications

The community ecology of invasive species: where are we and what's next?

The community ecology of invasive species: where are we and what's next?

Calligonum polygonoides L. Shrubs Provide Species-Specific Facilitation for the Understory Plants in Coastal Ecosystem

Trade-off between competition and facilitation defines gap colonization in mountains

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