Related Experiment Video
Updated: Dec 26, 2025
11:53
Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm
Published on: December 9, 2012
13.3K
Allocating resources for land protection using continuous optimization: biodiversity conservation in the United
Paul R Armsworth1, Amy E Benefield2, Bistra Dilkina3
1Department of Ecology and Evolutionary Biology and National Institute for Mathematical and Biological Synthesis, University of Tennessee, 569 Dabney Hall, 1416 Circle Dr, Knoxville, Tennessee, 37996, USA.
Summary
Large-scale conservation planning needs better models. Our approach optimizes funding allocation for habitat protection, showing priorities shift based on species focus and local assumptions.
Area of Science:
- Conservation Science
- Spatial Optimization
- Resource Allocation
Background:
- Spatial optimization, initially for small scales, is now used for global conservation priority setting.
- Large-scale resource allocation involves complex decision contexts often overlooked in current models.
Purpose of the Study:
- To present a continuous optimization approach for allocating conservation funding across regional offices.
- To examine how priorities for land acquisition change based on different conservation goals and assumptions about local processes.
Main Methods:
- Developed a continuous optimization framework for hierarchical funding allocation (funder to local offices).
- Applied the model to prioritize U.S. counties for new protected area establishment.
- Analyzed sensitivity of priorities to assumptions about species weighting and local decision-making efficacy.
Main Results:
- Priorities for protection vary significantly based on whether all species are weighted equally or only species of conservation concern are prioritized.
- When weighting all species equally, cost-effective areas in the Southwest are prioritized.
- Focusing on species of concern shifts priorities to areas rich in these species, especially near exurban development (e.g., Texas).
Conclusions:
- Conservation priorities are sensitive to assumptions about local ecological and decision-making processes.
- Decision-makers' beliefs about the efficacy of local efforts influence optimal funding distribution (concentrated vs. dispersed).
- Large-scale conservation planning must better reflect real-world decision-making challenges and report sensitivity to underlying assumptions.
Related Concept Videos
02:04Conservation of Small Populations
16.5K
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
16.5K
02:07Conservation of Declining Populations
12.4K
Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.
12.4K
01:57What is Conservation Biology?
23.9K
Conservation biology is a scientific field that focuses on the preservation of biodiversity in order to protect ecosystems while meeting the needs of the human population. Humans require properly functioning ecosystems to maintain our supply of natural resources, including food, medicines, and building materials.
23.9K
02:31Habitat Fragmentation
20.8K
Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
20.8K
02:02Ecological Niches
25.9K
All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.
25.9K
00:48Optimal Foraging
13.2K
How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
13.2K