Economic Effect of Leafy Spurge in the Upper Great Plains: Methods, Models, and Results

Leitch, Jay A.; Leistritz, F. Larry; Bangsund, Dean A.

doi:10.1080/07349165.1996.9725915

Cited by 59 publications

(58 citation statements)

References 2 publications

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“…Dispersal was characterized by a probabilistic dispersal kernel. We calculated the number of propagules (seeds) that arrived at uninfested cells as a propagule's probability of dispersal from an infested cell to an uninfested cell multiplied by the number of propagules in the infested cell: http://www.ecologyandsociety.org/vol13/iss2/art12/ Note: Data were obtained from Leistritz et al (1992), Lym et al (1993), Leitch et al (1994), andBangsund et al (1997). ‡Time since leafy spurge is thought to have entered North Dakota rangeland.…”

Section: Biological Model For Leafy Spurge (Euphorbia Esula)mentioning

confidence: 99%

Integrating Data, Biology, and Decision Models for Invasive Species Management: Application to Leafy Spurge (Euphorbia esula)

Hyder¹,

Leung²,

Miao³

2008

E&S

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ABSTRACT. Invasive species are a major cause of environmental change and are often costly to control. Decision theory should offer managers guidance to formulate the optimal allocation of resources. Unfortunately, current decision theory models typically do not consider invasion dynamics and do not make full use of the best models of biological spread and best biological data from theoretical models. We developed a decision theory model that integrated population dynamics, spread, uncertainty, and changes in management policies. We applied this model to leafy spurge (Euphorbia esula), a high-priority invasive weed in North America. We used field data to construct a biological model that included stochastic population dynamics and spatial spread and integrated it with decision theory using stochastic dynamic programming (SDP). The SDP model considered three control strategies: no control, biological control, and herbicide control. Solutions from the SDP model determined the optimal strategy to apply at a given state for any time horizon. The optimal strategy depended on the area and density of leafy spurge and varied with the time horizon; therefore, dynamic control is important in management programs. Biological control was consistently indicated as the optimal strategy for all time horizons. Herbicide control was the optimal strategy for small areas with high-density infestation for long time horizons. We conclude that dynamic control, forecasting, and the time horizon are important considerations for invasive species managers who are under financial, logistical, and time constraints.

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Section: Biological Model For Leafy Spurge (Euphorbia Esula)mentioning

confidence: 99%

Integrating Data, Biology, and Decision Models for Invasive Species Management: Application to Leafy Spurge (Euphorbia esula)

Hyder¹,

Leung²,

Miao³

2008

E&S

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“…Economic losses are estimated to be US$130 million annually in the Northern Great Plains and $86 million in North Dakota alone. 5,6 In some states, noxious weed laws require that landowners control leafy spurge on their property. Management of leafy spurge using herbicides co-occurred with an impressive growth in the Aphthona populations at these sites.…”

Section: Why Control Leafy Spurge?mentioning

confidence: 99%

Revisiting Leafy Spurge Biocontrol: A Case Study: Cost free management for 16 years!

Joshi¹,

Olson²

2009

Rangelands

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“…Following the method of Thompson (Leitch et al 1994), the value of forage was used to estimate the potential reduction in stock growers' net incomes resulting from reduced forage output in infested post-CRP used for grazing land. We assumed neither demand nor supply of forage or livestock were affected by these changes.…”

Section: Value Of Lost Foragementioning

confidence: 99%

“…Econ., N.D. State Univ., Fargo, N.D. 1995). Leafy spurge can withstand all but the most intensive eradication attempts and spreads easily through grazing land, doubling the size of an infestation every 10 years when left uncontrolled (Leitch et al 1994). The state's grazing lands are not the only lands impacted by the expansion of leafy spurge.…”

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confidence: 99%

Impact of Leafy Spurge on Post-Conservation Reserve Program Land

Hirsch¹,

Leitch²

1998

Journal of Range Management

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Abstract:Leafy spurge (Euphorbia esula L.), a noxious weed infests some of the 1.2 million hectares of Conservation Reserve Program (CRP) land in North Dakota. Once established a leafy spurge monoculture will reduce expected CRP benefits and impact returns to some post-CRP land uses. The study estimated statewide direct economic impacts of about $351,000 on post-CRP land maintained in vegetative cover, $1.118 million on post-CRP grazing land, and negligible (assumed $0) on post-CRP cropland, for a total of $1.469 million. Total annual direct and secondary economic impacts to North Dakota's economy were estimated to be $4.665 million, which would support about 57 jobs.

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Economic Effect of Leafy Spurge in the Upper Great Plains: Methods, Models, and Results

Abstract: Research was initiated in 1989 to develop a bioeconomic model of leafy spurge in the upper Great Plains. The study resulted in two M.S. theses, several monographs, and nu-1 .

Cited by 59 publications

References 2 publications

Integrating Data, Biology, and Decision Models for Invasive Species Management: Application to Leafy Spurge (Euphorbia esula)

Integrating Data, Biology, and Decision Models for Invasive Species Management: Application to Leafy Spurge (Euphorbia esula)

Revisiting Leafy Spurge Biocontrol: A Case Study: Cost free management for 16 years!

Impact of Leafy Spurge on Post-Conservation Reserve Program Land

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