Early Acacia invasion in a sandy ecosystem enables shading mediated by soil, leaf nitrogen and facilitation

Meira‐Neto, João Augusto Alves; Silva, Maria Carolina Nunes Alves da; Tolentino, Gláucia Soares; Gastauer, Markus; Buttschardt, Tillmann K.; Ulm, Florian; Máguas, Cristina

doi:10.1007/s10530-017-1647-2

Cited by 20 publications

(17 citation statements)

References 43 publications

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“…Another Australian acacia, A. dealbata, established positive plant-soil feedbacks which are important mechanisms for its further invasion (Gaertner et al 2014), and showed a strong competitive ability relative to the native trees (Rodriguez-Echeverria et al 2013). A. mangium may have negative impacts on the concentrations of soil nutrients and neighbouring plants (Liu et al 2017;Meira-Neto et al 2018). In its early invasion stage, A. mangium is able to alter both soil and leaf nitrogen, increase shade and enable a wider range of light variation, which is facilitated by the nitrogen taken up and transferred to neighbouring plants (Meira-Neto et al 2018).…”

Section: Negative Impacts On Soilsmentioning

confidence: 99%

“…A. mangium may have negative impacts on the concentrations of soil nutrients and neighbouring plants (Liu et al 2017;Meira-Neto et al 2018). In its early invasion stage, A. mangium is able to alter both soil and leaf nitrogen, increase shade and enable a wider range of light variation, which is facilitated by the nitrogen taken up and transferred to neighbouring plants (Meira-Neto et al 2018). In plantations of acacia and eucalypt in the Congolese coastal plains, soil resin P availability decreased in the top soil in the mixed-species (50% acacia and 50% eucalypt) compared to pure eucalypt stands at the end of the first 7-year rotation (Koutika et al 2014).…”

Section: Negative Impacts On Soilsmentioning

confidence: 99%

“…Introduction of A. mangium to agricultural, agroforestry or large open areas is, however, increasingly being shown to trigger major biological invasions. The number of publications documenting the invasive spread of A. mangium from planting sites is increasing rapidly; the species is currently recorded as an invasive species in Asia, Indonesia, southern Africa and South America (Richardson and Rejmánek 2011;Ismael and Metali 2014;Aguiar et al 2014;Meira-Neto et al 2018;Souza et al 2018). Such invasions are reducing the overall benefit from using the species and is creating conflicts of interest between (agro) foresters on the one hand and conservationists and natural resource managers on the other.…”

Section: Introductionmentioning

confidence: 99%

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Acacia mangium Willd: benefits and threats associated with its increasing use around the world

Koutika¹,

Richardson

2019

For. Ecosyst.

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Background: Acacia mangium, a fast-growing tree native to parts of Indonesia, Papua New Guinea and Australia, has been cultivated outside its native environment and introduced into humid tropical lowland regions of Asia, South America and Africa over the last few decades. It is a multipurpose tree used in agroforestry, forestry and for restoration of degraded lands. It is also highly invasive in many regions where it has been introduced outside its native range. This paper reviews evidence of its obvious benefits and its negative impacts on biodiversity. Methods: A literature review on Australian acacias and especially on A. mangium was undertaken to highlight both benefits and threats associated with their increasing worldwide use outside their native ranges.Results: Through N 2 fixed from the atmosphere, A. mangium improves soil fertility, especially by increasing N status and soil C accretion when introduced to N-limited areas; it thus has the potential to restore nutrient cycling in degraded systems. No studies have, however, been done to assess the effectiveness of A. mangium in restoring biodiversity of degraded lands. Most Australian acacias have traits that facilitate invasiveness, and 23 species have been recorded as invasive to date. A. mangium has been reported as invasive in Asia, Indonesia, Pacific Islands, Indian Ocean Islands, southern Africa and Brazil. Research on other invasive Australian acacias in several parts of the world has elucidated the types of impacts that are likely in different types of ecosystems and key options for mitigating impacts. Conclusions:A. mangium has the potential to restore nutrient cycling in degraded systems, but is highly invasive wherever it is planted. Many parts of the world have a large invasion debt for this species. Experience with other invasive acacias around the world suggests a suite of interventions that could be used to reduce invasions and mitigate impacts. Careful risk assessments should be undertaken prior to any new plantings of this species.

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Section: Negative Impacts On Soilsmentioning

confidence: 99%

Section: Negative Impacts On Soilsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Acacia mangium Willd: benefits and threats associated with its increasing use around the world

Koutika¹,

Richardson

2019

For. Ecosyst.

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“…Le Maitre et al ., 2011; Gaertner et al ., 2014; Hellmann et al ., 2017; Koutika and Richardson, 2019). In oligotrophic ecosystems, characterized by low biomass production, nutrient ‐poor soils and light‐demanding species, invasive Acacia have caused soil enrichment, litter accumulation and shading (Marchante et al ., 2008; Rascher, Große‐Stoltenberg et al ., 2011; Meira‐Neto et al ., 2017). These changes could harm species adapted to oligotrophic conditions and benefit the establishment of Acacia seedlings (Le Maitre et al ., 2011; Rascher et al ., 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Considering the large area suitable for Acacia in the Brazilian Atlantic Forest, the ecosystem changes promoted by Acacia , and the potential synergy between land‐use change and biological invasion by Acacia in the Mussununga ecosystem, understanding how a landscape and its elements affect Acacia invasion is an essential step in establishing monitoring and eradication efforts (Lehmann et al ., 2017; Meira‐Neto et al ., 2017; Heringer et al ., 2019b). We hypothesized that the Mussununga ecosystem within degraded landscapes (i.e., with greater forest fragmentation and larger road networks) would have a higher risk of biological invasion by Acacia species.…”

Section: Introductionmentioning

confidence: 99%

Acacia invasion is facilitated by landscape permeability: The role of habitat degradation and road networks

Heringer

Thiele

Amaral

et al. 2020

Applied Vegetation Science

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Context: The sandy-savanna ecosystem "Mussununga", a natural ecosystem that occurs as patches throughout the Atlantic Forest domain, is threatened by anthropogenic factors and biological invasions of Australian Acacia species. Habitat degradation in the Atlantic Forest domain and extensive road networks could facilitate Acacia invasion into Mussununga. Objectives: We investigated whether: (a) landscape permeability (measured by effective conductance) facilitates Acacia invasion; (b) forest fragments are barriers, and roads and highways are corridors for invasive spread of Acacia; and (c) size and shape of Mussununga patches play a role in biological invasion. Methods: Acacia invasion was investigated in 32 Mussununga sites within the Atlantic Forest domain. We tested the effect of a set of landscape permeability scenarios based on circuit analysis and nine other metrics of landscape structure on Acacia occurrence using three buffer-zone sizes (0.5, 1, and 2 km). Results: The likelihood of Acacia invasion significantly increased with landscape permeability. The best-fitting landscape permeability scenario designated road networks as corridors, intact forests and water surfaces as barriers, and degraded habitats as non-barriers. We also found that Mussununga areas within a 0.5 km buffer negatively affected the biological invasion by Acacia. Conclusions: Extensive habitat degradation by deforestation and dense road networks facilitate Acacia invasion into sandy-savanna Mussununga ecosystems. Landscape permeability may be used as a risk-assessment tool for biological invasion by Acacia species. Mussununga patches can be protected from Acacia invasion | 599 Applied Vegetation Science HERINGER Et al.

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Biological invasion threatens the sandy-savanna Mussununga ecosystem in the Brazilian Atlantic Forest

et al. 2019

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Early Acacia invasion in a sandy ecosystem enables shading mediated by soil, leaf nitrogen and facilitation

Cited by 20 publications

References 43 publications

Acacia mangium Willd: benefits and threats associated with its increasing use around the world

Acacia mangium Willd: benefits and threats associated with its increasing use around the world

Acacia invasion is facilitated by landscape permeability: The role of habitat degradation and road networks

Biological invasion threatens the sandy-savanna Mussununga ecosystem in the Brazilian Atlantic Forest

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