Different growth strategies to invade undisturbed plant communities by Acacia dealbata Link

Rodríguez, Jonatan; Lorenzo, Paula; González, Luís

doi:10.1016/j.foreco.2017.05.007

Cited by 23 publications

(17 citation statements)

References 36 publications

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“…In the center of each block we established a pair of study plots. Then, we established additional pairs of study plots along each of the four sides (N, S, E, and W) nearly outside the stand, at the invasion edge (the border between crowns of the invasive species monoculture and the surrounding trees; Rodríguez et al 2017). The next four pairs were located 30 m from the invasion edge.…”

Section: Methodsmentioning

confidence: 99%

Functional traits of acquisitive invasive woody species differ from conservative invasive and native species

Dyderski¹,

Jagodziński²

2019

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One of the most important sources of invasiveness is species’ functional traits and their variability. However there are still few studies on invasive tree species traits conducted along resource gradients that allow for a comparison of acquisitive and conservative strategies. We aimed to assess the differences in trait variation among native alien conservative and alien acquisitive tree species along resource availability gradients (soil fertility and light availability) and to assess the traits variability of the species studied along resources availability gradients. Our study compared invasive tree species in Europe (Prunusserotina Ehrh. Quercusrubra L. and Robiniapseudoacacia L.) with their native competitors (Acerpseudoplatanus L. A.platanoides L. Quercuspetraea (Matt.) Liebl. and Fagussylvatica L.). The study was conducted on 1329 seedlings and saplings collected in a system of 372 study plots in W Poland. For each individual we assessed leaf stem and root mass ratios total biomass leaf area ratio specific leaf area and projected leaf area. Two invasive species (P.serotina and R.pseudoacacia) represented a more acquisitive strategy than native species – along litter pH and light availability gradients these species had higher leaf mass fraction specific leaf area and leaf area ratio. In contrast Q.rubra had the highest total biomass and root mass fraction. Alien species usually had higher coefficients of variation of studied traits. This suggests that relatively high projected leaf area as a way of filling space and outcompeting native species may be reached in two ways – biomass allocation to leaves and control of leaf morphology or by overall growth rate. High variability of invasive species traits also suggests randomness in seedling survival which similarly to the neutral theory of invasion highlights the necessity of including randomness in modelling biological invasions.

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Section: Methodsmentioning

confidence: 99%

Functional traits of acquisitive invasive woody species differ from conservative invasive and native species

Dyderski¹,

Jagodziński²

2019

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“…Reproduction by sprouting facilitates the establishment of clonal populations (Lorenzo et al 2010a;Fuentes-Ramírez et al 2011;Rodríguez et al 2017). In fact, the proportion of sprouting species is higher among invasive than noninvasive acacias .…”

Section: Reproductive Featuresmentioning

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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100

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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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“…Disturbance dependency is an example of invasion ecology concepts merging these aspects (Hobbs and Huenneke 1992;Chabrerie et al 2008;Jeschke 2014;Rodríguez et al 2017). This concept assumes that invasive species reach higher ecological success in disturbed sites (habitat parameter).…”

Section: Introductionmentioning

confidence: 99%

Low impact of disturbance on ecological success of invasive tree and shrub species in temperate forests

Dyderski

Jagodziński

2018

Plant Ecol

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Disturbance is claimed to be one of the most important triggers of biological invasions. There is a lack of data about disturbance impacts on the youngest life stage of invasive trees and shrubs. Thus, we aimed to assess the role of disturbances in shaping responses of natural regeneration of three model invasive species-Prunus serotina Ehrh., Quercus rubra L., and Robinia pseudoacacia L.-to disturbances in forest plant communities. Our study was conducted over 3 years on 372 study plots (100 m 2), across nine types of temperate forests in Wielkopolski National Park (Poland). Disturbance was assessed using ecological indicator values for disturbance severity and frequency. Our study revealed the high importance of disturbance on species composition of understory vegetation. We also found relationships between ecological success (density and biomass of natural regeneration) of invaders and disturbance indices. These models were statistically significant but their effect sizes were low. Due to the low effect sizes, we can state only limited conclusions about impact of disturbance on ecological success of invasive species natural regeneration. The results suggest that for seedlings (up to 50 cm height-threshold between understory and shrub layer) disturbance, a leading factor in biological invasions of numerous taxa, has a small role in this case. Thus, we may assume that their ecological success is connected with stochastic processes in populations of the invader's seedlings, rather than with stochastic release from competition caused by disturbances. Keywords Black cherry Á Northern red oak Á Black locust Á Intermediate-disturbance hypothesis Á Saplings Communicated by Lesley Rigg.

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Different growth strategies to invade undisturbed plant communities by Acacia dealbata Link

Cited by 23 publications

References 36 publications

Functional traits of acquisitive invasive woody species differ from conservative invasive and native species

Functional traits of acquisitive invasive woody species differ from conservative invasive and native species

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

Low impact of disturbance on ecological success of invasive tree and shrub species in temperate forests

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