The bioeconomics of tritrophic systems: applications to invasive species

Gutiérrez, A. P.; Regev, Uri

doi:10.1016/j.ecolecon.2004.05.007

Cited by 35 publications

(38 citation statements)

References 31 publications

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“…In contrast, M 2,c on the abscissa and points along the trace from it (λ 1 = 0, M 2 , θ 2 ) is the path of the competitive solution. Point M 2,e on the abscissa is a hypothetical level where the system collapses (17,18). As δ tryp decreases from an initial high level (Fig.…”

Section: Bioeconomic Effects Of Reducing Trypanosomiasis Riskmentioning

confidence: 99%

“…It is difficult to introduce the contribution of other sources of risk into the bioeconomic model and to separate their contribution to total risk (δ total = δ tryp + δ tbd + δ malaria + · · · ) (18).…”

Section: Adding Other Disease Constraintsmentioning

confidence: 99%

“…In economics, consumption is the hedonistic use of revenues in ways that do not contribute to firm growth, whereas in nature, consumption is the use of energy in a manner that, on average, does not contribute to growth (e.g., excess reproductive capacity in r-selected species and parental care in K-selected species) (18) but does contribute to adaptedness. A full suite of economic analogies for resource acquisition and allocation at all levels of natural and human economies, including the conflicting notions of biological and economic demand, consumption, and risk, has been proposed (17)(18)(19)). …”

mentioning

confidence: 99%

“…We propose 2 general modeling approaches to resolve some of these issues: Weather-driven physiologically based ecosystem models of energy/mass flow in trophic chains and webs including the economic consumer (12)(13)(14) and bioeconomic models that includes dynamics of the renewable resource to be managed and the resource manager, i.e., as dynamic constraints in the objective function (15,16) that maximizes the utility of consumption by individuals under different levels of risk (17,18). In economics, consumption is the hedonistic use of revenues in ways that do not contribute to firm growth, whereas in nature, consumption is the use of energy in a manner that, on average, does not contribute to growth (e.g., excess reproductive capacity in r-selected species and parental care in K-selected species) (18) but does contribute to adaptedness.…”

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confidence: 99%

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Ecosocial consequences and policy implications of disease management in East African agropastoral systems

Gutiérrez¹,

Gilioli²,

Baumgärtner³

2009

Proc. Natl. Acad. Sci. U.S.A.

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International research and development efforts in Africa have brought ecological and social change, but analyzing the consequences of this change and developing policy to manage it for sustainable development has been difficult. This has been largely due to a lack of conceptual and analytical models to access the interacting dynamics of the different components of ecosocial systems. Here, we examine the ecological and social changes resulting from an ongoing suppression of trypanosomiasis disease in cattle in an agropastoral community in southwest Ethiopia to illustrate how such problems may be addressed. The analysis combines physiologically based demographic models of pasture, cattle, and pastoralists and a bioeconomic model that includes the demographic models as dynamic constraints in the economic objective function that maximizes the utility of individual consumption under different level of disease risk in cattle. Field data and model analysis show that suppression of trypanosomiasis leads to increased cattle and human populations and to increased agricultural development. However, in the absence of sound management, these changes will lead to a decline in pasture quality and increase the risk from tick-borne diseases in cattle and malaria in humans that would threaten system sustainability and resilience. The analysis of these conflicting outcomes of trypanosomiasis suppression is used to illustrate the need for and utility of conceptual bioeconomic models to serve as a basis for developing policy for sustainable agropastoral resource management in sub-Saharan Africa.bioeconomics | meta-tools | physiologically based models | cattle trypanosomiasis | tick-borne diseases | malaria

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Section: Bioeconomic Effects Of Reducing Trypanosomiasis Riskmentioning

confidence: 99%

Section: Adding Other Disease Constraintsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Ecosocial consequences and policy implications of disease management in East African agropastoral systems

Gutiérrez¹,

Gilioli²,

Baumgärtner³

2009

Proc. Natl. Acad. Sci. U.S.A.

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“…Such bioeconomic modelling helps to identify the optimal control technique (Baker et al, 2005), and to define the conditions under which it is still economic to eradicate a species (Regan et al, 2006) or the optimal threshold population density of a species that is contained (Anderson et al, 2003). Bioeconomic models are often based on sophisticated biological models, that include, for instance, multitrophic biotic interactions (Gutierrez and Regev, 2005) or spatially explicit spread modelling (Olson, 2007). Similarly, the economic models may vary from simple economic to complex socioeconomic valuation of management strategies (see above).…”

Section: Planningmentioning

confidence: 99%

How to Achieve Effectiveness in Problem-Oriented Landscape Research: The Example of Research on Biotic Invasions

Kueffer¹,

Hadorn²

2008

Living Rev. Landscape Res.

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It is increasingly expected from environmental research such as landscape research that science directly contributes to the solving of pressing societal problems. However, despite increased efforts to direct research towards societal problems, it is not obvious if science has become more effective in supporting environmental problem-solving. We present in this article a framework that facilitates the analysis and design of problem-orientation in research fields. We then apply the proposed framework to a concrete example of a problem-oriented landscape research field -namely research on biotic invasions. Invasion research addresses the problem that some organisms, that have been introduced by humans to a new geographic area where they were previously not present, spread in the landscape and pose negative impacts.We argue that problem-oriented research is more than applied research. Besides research on specific questions it also encompasses boundary management, i.e., deliberations among experts and stakeholders on the framing of adequate research questions about processes, values and practices for effective problem-solving. We postulate that such research may assist problem-solving in three ways, by analysing causal relationships (systems knowledge), clarifying conflicts of interests and values (target knowledge), or contributing to the development of appropriate means for action (transformation knowledge).We show that over the past decades a broad range of different research approaches has emerged in the young field of invasion research in order to produce systems, target and transformation knowledge for invasive species management. Early research in the field was dominated by the development of systems knowledge, but increasingly the three knowledge forms are Boundary management in invasion research is mainly restricted to informal networks (communities of practice), while formal processes such as transdisciplinary research are scarce. We suggest that the paucity of structured and explicit boundary management processes will limit the future development of a more effective science for invasive species management. In particular, we envisage three obstacles that can only be removed through explicit boundary management. First, the existing theoretical frameworks are currently only partly able to integrate natural and social sciences research on the processes underlying invasions. Second, a clarification of the normative thinking about alien plant invasions is needed. Third, research on transformation knowledge has so far not fundamentally challenged the existing conceptual framing and institutional setup of invasive species management.

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Tritrophic analysis of the prospective biological control of brown marmorated stink bug, Halyomorpha halys, under extant weather and climate change

et al. 2023

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The highly destructive Asian brown marmorated stink bug (Halyomorpha halys, BMSB) invaded Europe, Caucasus region, and North and South America. Efforts to control it are ongoing in the Palearctic European-Mediterranean Basin and North America by introducing and redistributing two Asian stenophagous scelionid egg parasitoids (Trissolcus japonicus and T. mitsukurii) that are attacked by an adventive oligophagous pteromalid Asian hyperparasitoid (Acroclisoides sinicus). Large BMSB nymphs and adults may be parasitized by new associations of oligophagous tachinid flies and immature stages by egg parasitoids and predators. The terms stenophagous and oligophagous are commonly used to define narrow and wider ranges, respectively, of food eaten, but here they refer to the range of hosts attacked by adult female parasitoids. A holistic weather-driven physiologically based demographic model (PBDM) of the tritrophic interactions was developed to evaluate prospectively the impact of natural enemies on the biological control of BMSB under current and climate change weather. Our study focuses on the European-Mediterranean region, with the results for the USA, Mexico, and Central America reported as supplementary information. The PBDM analysis suggests that biotypes of the egg parasitoids T. japonicus and T. mitsukurii with high search capacity could suppress BMSB regionally, but the requisite levels of parasitism by these parasitoids for economic control are not observed in their native range nor in invaded areas. The model suggests that the action of T. japonicus is greater than that of T. mitsukurii, but that joint interactions of the two egg parasitoids would provide higher mortality of BMSB. Field data and model results suggest that the egg hyperparasitoid A. sinicus has a modest negative impact on the suppression of BMSB. Moreover, tachinid parasitoids of adults could have an important supplemental role in suppressing BMSB densities. Analysis suggests that new biotypes of egg parasitoids and species of tachinid parasitoids of large nymphs and adults be sought.

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The bioeconomics of tritrophic systems: applications to invasive species

Cited by 35 publications

References 31 publications

Ecosocial consequences and policy implications of disease management in East African agropastoral systems

Ecosocial consequences and policy implications of disease management in East African agropastoral systems

How to Achieve Effectiveness in Problem-Oriented Landscape Research: The Example of Research on Biotic Invasions

Tritrophic analysis of the prospective biological control of brown marmorated stink bug, Halyomorpha halys, under extant weather and climate change

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