Identifying the Research Requirements for the Control of Silver Wattle (<i>Acacia dealbata</i>) in Natal

Campbell, P. L.; Bell, R. S.; Kluge, R. L.

doi:10.1080/00382167.1990.9629070

Cited by 4 publications

(5 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The best method, apart from the removal of these plants whenever possible, is to prevent their invasion in places still free of the influence of these weeds, conserving the forests and other native habitats. The more natural and stable a habitat, the less chance of invasion occurring, as invasive plants have more difficulty in finding resources not yet used by native species [84].…”

Section: Acaciasmentioning

confidence: 99%

Historical Development of the Portuguese Forest: The Introduction of Invasive Species

Nunes

Meireles

Gomes

et al. 2019

Forests

View full text Add to dashboard Cite

Portugal is a country with a territorial dimension of approximately 90,000 km2. However, the forest occupies a prominent position, since it represents about 35% of the total area of the country. Portuguese people always had a very close connection with the forest, which has provided the necessary resources for the development of its communities. The geological substratum of continental Portugal is very old and may therefore have witnessed the evolution of its plants, from the early beginning to the present time, as well as all sort of historical and environmental landmarks such as glacial periods or mass extinctions. Also, from the perspective of human occupation, Portuguese territory was crossed by hunter-gatherer populations who, initially, were constantly moving and looking for sustenance, but at a later stage, chose to settle. This relationship between human populations and the forest is, thus, very old and demonstrates the interdependence between the subsistence of the populations and the resources exploitation. Currently, the main national economic groups are based on forest industries, which depend directly on the exploitation of the three dominant species, Eucalyptus globulus Labill., Pinus pinaster Aiton and Quercus suber L., demonstrating the human role in the development of the forest, motivated by the satisfaction of its needs. This work reviews the historical development of the forest in mainland Portugal, from geological times to the present, including the arrival of exotic species that later acquired invasive behaviors and now occupy significant areas of the national territory.

show abstract

Section: Acaciasmentioning

confidence: 99%

Historical Development of the Portuguese Forest: The Introduction of Invasive Species

Nunes

Meireles

Gomes

et al. 2019

Forests

View full text Add to dashboard Cite

show abstract

“…Hand pulling Seedlings and small plants are manually removed [35,36] Cutting Small germinating plants are cut with a brush cutter or other cutting tool [36] Ringbarking Continuous rings are cut around the tree trunk with smooth intact bark, and all the bark and vascular cambium are removed until the ground surface [37,38] Chemical control…”

Section: Mechanical Controlmentioning

confidence: 99%

“…Herbicide spraying is sprayed on recent sprouts or in areas with high germination rates [35,36] Stem injection Herbicide is applied directly to the vascular system of the adult plants [39] Biological control…”

Section: Foliar Application Of Herbicidementioning

confidence: 99%

“…Due to the abundant acacia seeds in the soil, the emergence of new shoots requires repeated control treatments for these plants and those that survived the previous control [43]. Respondents also recognize this challenge when assessing the sustainability of the different methods [35][36][37][38][39][40][41][42][43][44][45] and when referring to the need to increase the timespan for the funded projects.…”

Section: Increased Knowledge Of Acacia Controlmentioning

confidence: 99%

See 1 more Smart Citation

Genus Acacia in Mainland Portugal: Knowledge and Experience of Stakeholders in Their Management

Colaço,

Sequeira,

Skulska

2023

Land

View full text Add to dashboard Cite

The global rise in issues related to the invasion of alien tree species is becoming increasingly prominent. Genus Acacia is one of the most pervasive invaders among the non-native flora introduced to Portugal over the centuries. This research aimed to pinpoint the key players engaged in its management, their expertise, and the methodologies applied to control acacias or decrease affected regions. Data were gathered via an online survey and subjected to diverse statistical analyses. Numerous stakeholders have emerged in recent decades, employing various methods to fight acacia invasion. Mechanical, chemical, and combined methods are the most frequently applied. The findings highlight the need for continued funding for long-term acacia control in the same invaded areas, increased training actions and best practices demonstration in the field and increased public awareness and engagement in local communities and the general public.

show abstract

“…However, the forms of control employed so far have not shown to be efficient and have not been able to prevent the advance of the species [14]. These control processes focused mainly on chemical and mechanical processes, as indicated by Campbell et al (1990), who also described the use of controlled fire. This seems, however, not to contribute to the elimination of plants but rather to their recurrence with greater intensity in burnt areas, especially when there were previously adult stands with the capacity to create seed banks in the soil that germinate with great intensity after the use of fire, since A. dealbata is a pyrophyte species [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Acacia dealbata Link. Aboveground Biomass Assessment: Sustainability of Control and Eradication Actions to Reduce Rural Fires Risk

Nunes

Meireles

Gomes

et al. 2022

Fire

View full text Add to dashboard Cite

Invasive species are an environmental problem affecting worldwide ecosystems. In the case of Acacia dealbata Link., the negative impacts affect the productivity of the forests due to the competition established with native species while contributing to a significant increment in the available fuel load, increasing the risk of fire. In Portugal, chemical and mechanical methods are mostly used in the control of these species. However, the costs are often unsustainable in the medium term, being abandoned before completing the tasks, allowing the recovery of the invasive species. The establishment of value chains for the biomass resulting from these actions was pointed out by several authors as a solution for the sustainability of the control process, as it contributes to reducing costs. However, the problems in quantifying the biomass availability make it challenging to organize and optimize these actions. This work, which started from a dendrometrical analysis carried out in stands of A. dealbata, created a model to assess woody biomass availability. The model proved to be statistically significant for stands with trees younger than 20 years old. However, the amount of data collected and the configuration of the settlements analyzed do not allow extrapolation of the model presented to older settlements.

show abstract

Identifying the Research Requirements for the Control of Silver Wattle (Acacia dealbata) in Natal

Cited by 4 publications

References 7 publications

Historical Development of the Portuguese Forest: The Introduction of Invasive Species

Historical Development of the Portuguese Forest: The Introduction of Invasive Species

Genus Acacia in Mainland Portugal: Knowledge and Experience of Stakeholders in Their Management

Acacia dealbata Link. Aboveground Biomass Assessment: Sustainability of Control and Eradication Actions to Reduce Rural Fires Risk

Contact Info

Product

Resources

About