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Related Experiment Video

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Field Collection and Laboratory Maintenance of Canopy-Forming Giant Kelp to Facilitate Restoration

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Reallocating budgets among ongoing and emerging conservation projects.

Chung-Huey Wu¹, Aaron J Dodd^1,2, Cindy E Hauser¹

¹School of Biosciences, The University of Melbourne, Parkville, VIC, 3010, Australia.

Conservation Biology : the Journal of the Society for Conservation Biology

|July 11, 2020

Summary

This summary is machine-generated.

Resource reallocation in conservation projects can improve outcomes by adapting to changing priorities. An iterative approach using marginal return-on-investment and portfolio optimization enhances management efficacy, especially for dynamic ecological hazards.

Keywords:

asignación dinámica de recursos aves amenazadas dynamic resource allocation especies invasoras invasive species optimización optimization portafolio de proyecto prioritization priorización project portfolio rentabilidad return on investment threatened birds

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Area of Science:

Conservation science
Ecological economics
Environmental management

Background:

Effective biodiversity conservation requires cost-effective resource allocation among management projects.
Project priorities and social-ecological systems evolve, necessitating adaptive management strategies.
Reallocating investments can address emerging needs but involves transaction costs and constraints.

Purpose of the Study:

To propose and evaluate an iterative project prioritization approach for guiding resource reallocation.
To explore how this approach improves management efficacy under various reallocation conditions.
To identify specific scenarios where budget reallocation enhances or hinders conservation outcomes.

Main Methods:

Developed an iterative project prioritization approach based on marginal return-on-investment estimation.
Employed portfolio optimization to guide resource reallocation among ongoing and new projects.
Utilized simulation experiments across two case studies (invasive weeds, threatened birds) to test the approach under different constraints.

Main Results:

Periodic budget reallocation significantly reduced risk (up to 50%) for managing invasive weeds in Australia compared to static budgets.
Reallocation frequency and the rate of new weed incursions synergistically boosted conservation gains.
Reallocation did not improve the conservation status of threatened Australian birds and could increase extinction risk if reassessment is costly.

Conclusions:

An iterative, marginal return-on-investment-based approach can guide cost-effective resource reallocation in conservation.
Reallocation is most beneficial for dynamic ecological hazards like invasive species, contingent on reallocation costs and frequency.
Conservation agencies can use this structured approach to optimize budget allocation decisions for improved long-term effectiveness.