Chapter 14 Invasive Plants in Tropical Human‐Dominated Landscapes: Need for an Inclusive Management Strategy

Shaanker, R. Uma; Joseph, Gladwin; Aravind, N. A.; Kannan, Ramesh; Ganeshaiah, K. N.

doi:10.1093/acprof:oso/9780199560158.003.0014

Cited by 9 publications

(13 citation statements)

References 34 publications

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“…Invasive plants often supply benefits to societies in their new ranges, but costs associated with these invasions often increase as the plants spread (Shackleton et al 2007a;Kull et al 2011). This typically results in the emergence of complex conflicts of interest, with some stakeholders calling for eradication or control of the invaders, while others promote their continued use (Shaanker et al 2010;Kannan et al 2014;Shackleton et al 2014;van Wilgen and Richardson 2014). Some invasive plant taxa (e.g., Acacia and Pinus species) are commercially important for forestry and agroforestry (Richardson 2011), while many others (e.g., Acacia mearnsii, Opuntia ficus-indica and Prosopis species) provide useful resources such as fuelwood, fodder and fruit, and are important for local livelihoods (Pasiecznik et al 2001;de Neergaard et al 2005;Shackleton et al 2007aShackleton et al , 2011Richardson et al 2015).…”

Section: General Introductionmentioning

confidence: 99%

Use of non-timber forest products from invasive alien Prosopis species (mesquite) and native trees in South Africa: implications for management

Shackleton

Maitre²,

Wilgen

et al. 2015

For. Ecosyst.

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Background: Prosopis species have been introduced to many areas outside their native range to provide benefits to local communities. Several Prosopis species and their hybrids (hereafter "mesquite") have, however, become naturalised and invasive and now generate substantial costs. Management options are limited because of the complex conflicts of interest regarding benefits and costs. Management policies and strategies must take account of such conflicts, but further insights are needed on the dimensions of uses and impacts before such information can be usefully applied. Current policy in South Africa allows for the growth and use of mesquite in one province, but not in others where its control is mandatory. We report on a study to quantify the direct use and perceptions of non-timber forest products (NTFPs) from mesquite and native trees in South Africa. Methods: Semi-structures household interviews were conducted with various stakeholder groups to identify what tree products are used, to ascertain amounts used as well as to gauge perceptions of natural resource use between different tree species and use over time.Results: The direct household use value of native trees was higher than that of mesquite, and local stakeholders attached greater value to products from native trees than from mesquite. Therefore, native trees are and will still be preferentially harvested, and mesquite is unlikely to offer protection to native species by providing an alternative source of products. Mesquite pods do, however, provide valuable additional resources (fodder and medicinal products). The use of both native trees and mesquite is decreasing as the incomes of poorer households rise and as alternative energy sources become available. The benefits and reliance on mesquite are not as high as previously assumed and the impacts from mesquite invasions create large problems for local communities. Conclusion: This study provides further evidence that the impacts of mesquite exceed the benefits, lending support for a policy to reduce negative impacts.

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Section: General Introductionmentioning

confidence: 99%

Use of non-timber forest products from invasive alien Prosopis species (mesquite) and native trees in South Africa: implications for management

Shackleton

Maitre²,

Wilgen

et al. 2015

For. Ecosyst.

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“…But the scale and intensity of disturbances in open rangelands need exhaustion after longterm studies in the varied habitats created by mega herbivorys and antecedent environmental factors. It makes sense to consider de-novo the top down and bottom up controls on the vegetation in the light of termite activity, fungal attack, LC invasions and the drought polycycle's in the prognosis of IPCC [41] for Southern Africa [42][43][44][45][46][47].…”

Section: Resultsmentioning

confidence: 99%

“…LC may be an agent of negative environmental change in view of its recorded impacts implicit in several studies [35,42,45]. …”

mentioning

confidence: 99%

Decline and Die-Back of Woody Plants in a Physiognomic and Floristically Complex Sebungwe Region and the Factors Modifying Mosaic Patch Landscapes at Sengwa Wildlife Area, Zimbabwe

Tafangenyasha¹,

Kavhu²,

Vingi³

2016

J Ecosyst Ecogr

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“…In the context of human-dominated landscapes, utilizing L. camara to enhance livelihoods and offset some of its costs may be one of the few viable options available (e.g. Uma Shaanker et al 2009). However, in the context of high conservation value landscapes, there is a strong case to be made for L. camara control.…”

Section: Conclusion and Implications For Managementmentioning

confidence: 99%

Invasive Plant Species in Indian Protected Areas: Conserving Biodiversity in Cultural Landscapes

Hiremath

Sundaram

2013

Plant Invasions in Protected Areas

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Invasive plant species in Indian protected areas have received relatively little attention until recently. This may partly be due to a historical emphasis on wildlife protection, rather than on a broader science-based approach to conservation of biodiversity and ecosystem functioning. A literature review of invasive plant species in India showed that nearly 60 % of all studies have been done since 2000, and only about 20 % of all studies are from protected areas. Studies from protected areas have largely focused on a small subset of invasive alien plants, and almost half these studies are on a single species, Lantana camara, probably reflecting the species' ubiquitous distribution. The spread of alien plants in India has been both ecologically and human mediated. Efforts to manage plant invasions have, in the past, been diluted by the ambivalence of managers attempting to find beneficial uses for these species. Despite growing knowledge about the harmful impacts of certain invasive plants on native species and ecosystems, their deliberate spread has continued, even till quite recently. And, despite the successful implementation of management initiatives in some protected areas, these efforts have not expanded to other areas. The lack of a national coordinated effort for invasive species monitoring, research, and management largely underlies this.

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Chapter 14 Invasive Plants in Tropical Human‐Dominated Landscapes: Need for an Inclusive Management Strategy

Cited by 9 publications

References 34 publications

Use of non-timber forest products from invasive alien Prosopis species (mesquite) and native trees in South Africa: implications for management

Use of non-timber forest products from invasive alien Prosopis species (mesquite) and native trees in South Africa: implications for management

Decline and Die-Back of Woody Plants in a Physiognomic and Floristically Complex Sebungwe Region and the Factors Modifying Mosaic Patch Landscapes at Sengwa Wildlife Area, Zimbabwe

Invasive Plant Species in Indian Protected Areas: Conserving Biodiversity in Cultural Landscapes

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