A crowding-dependent population model for woody weeds – Where size does matter

Zull, Andrew F.; Lawes, Roger; Cacho, Oscar J.

doi:10.1016/j.envsoft.2015.10.026

Cited by 1 publication

(2 citation statements)

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“…In Australia, the estimated annual cost of woody weeds to the grazing industry is in the vicinity of AUD 12.3 billion [68]. Although a "trade-off" exists, the management of Z. mauritiana is largely very costly relative to the annual returns of rangeland environments (Table 2) [69,70]. A study by Zull et al (2008) constructed an analytical framework for the optimal frequency of management by synthesising the complex relationships between population dynamics, direct weed costs, and the cost-benefit of different control methods [70].…”

Section: Manual and Mechanical Control Methodsmentioning

confidence: 99%

“…Although a "trade-off" exists, the management of Z. mauritiana is largely very costly relative to the annual returns of rangeland environments (Table 2) [69,70]. A study by Zull et al (2008) constructed an analytical framework for the optimal frequency of management by synthesising the complex relationships between population dynamics, direct weed costs, and the cost-benefit of different control methods [70]. This model suggested that mechanical means of management were largely uneconomic for Z. mauritiana, particularly in upland zones [70].…”

Section: Manual and Mechanical Control Methodsmentioning

confidence: 99%

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Chinee Apple (Ziziphus mauritiana): A Comprehensive Review of Its Weediness, Ecological Impacts and Management Approaches

O’Brien,

Campbell,

Young

et al. 2023

Plants

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Ziziphus mauritiana Lam. (Rhamnaceae) (Chinee Apple, Indian Jujube, or Ber) is a significant woody weed in the drier tropics of northern Queensland, Western Australia, and the Northern Territory. Throughout these regions, its densely formed thickets influence the structure, function, and composition of rangeland ecosystems by outcompeting native pasture species. Despite this, the recent literature is heavily focused on the horticultural value of domesticated Ziziphus species in South Asia (China, India, and Pakistan), particularly its potential for poverty alleviation in arid or semi-arid areas. In fact, there has been comparatively little research undertaken on its invasiveness or associated ecological factors in pastoral contexts. Currently, the management of Z. mauritiana is limited to the application of synthetic herbicides or mechanical clearing operations. There is also considerable interest in the exploitation of host-specific, natural enemies (biological control agents, herbivorous insects, fungi, bacteria, or viruses) for limiting the vigour, competitiveness, or reproductive capacity of Z. mauritiana in northern Australia. The development of a “bioherbicide” in lieu of synthetic counterparts may foster a more resilient coexistence between agricultural systems and the natural environment owing to its reduced environmental persistence and increased target specificity. This review summarises the current literature on the weediness, ecological impacts, and current management of this problematic weed, thereby identifying (i) opportunities for further research and (ii) recommendations for improved management within its invasive range.

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Section: Manual and Mechanical Control Methodsmentioning

confidence: 99%