Ecosystem Services Modeling as a Tool for Defining Priority Areas for Conservation.

Area of Science:

• Conservation Science
• Ecosystem Services
• Biodiversity Assessment

Background:

• Protected area support often hinges on demonstrating societal benefits.
• Ecosystem services quantification is vital for conservation justification.
• Integrating ecosystem services with biodiversity metrics enhances conservation planning.

Purpose of the Study:

• To quantify and spatialize ecosystem services (carbon stock, sediment retention) and habitat quality.
• To evaluate the overlap between these ecosystem services and biodiversity.
• To propose a replicable method for selecting priority conservation areas considering synergism.

Main Methods:

• Utilized InVEST software and GIS procedures for spatial analysis.
• Modeled carbon stock, considering tree mortality from edge effects.
• Incorporated topography parameters into habitat quality modeling.

Main Results:

• Identified priority areas (13% of study region) for ecosystem services and habitat quality.
• Found low spatial congruence among modeled services, particularly sediment retention.
• Determined that 30% of priority areas are in strictly protected zones and 12% in sustainable use areas.

Conclusions:

• The proposed method aids conservation planners in identifying areas with multiple benefits and trade-offs.
• Topography and edge effects are critical factors for accurate habitat quality and carbon stock modeling.
• Integrating ecosystem services and biodiversity metrics is essential for effective conservation in complex landscapes like the Iron Quadrangle.