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Updated: May 29, 2026

Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
Predictive model for sustaining biodiversity in tropical countryside
Chase D Mendenhall1, Cagan H Sekercioglu, Federico Oviedo Brenes
1Center for Conservation Biology, Department of Biology, Stanford University, Stanford, CA 94305-5020, USA. cdm@stanford.edu
Farmland can support native birds by preserving small forest elements, which are crucial for 80% of species. Managing these fine-scale habitats on farms significantly boosts biodiversity beyond protected areas.
Area of Science:
- Ecology
- Conservation Biology
- Agricultural Science
Background:
- Agricultural expansion displaces native habitats, raising concerns about biodiversity loss.
- Farmland can potentially support wildlife through landscape features, but the extent is unclear.
Purpose of the Study:
- To develop a model for quantifying farmland "wildlife-friendliness" for native birds.
- To assess the biodiversity support capacity of fine-scale forest elements within agricultural landscapes.
Main Methods:
- Empirically based modeling using data from a tropical ecosystem in Costa Rica.
- Mist-netting to identify bird species and correlating their presence with landscape features.
Main Results:
- 80% of 166 bird species depend on fine-scale forest elements (≤60m wide) within farmland.
- A predictive model accurately estimates bird community composition (∼75% accuracy).
- Small tree clusters (≤20m) and forest remnants (≤60m) provide significant conservation value.
Conclusions:
- Fine-scale forest elements on farms are vital for sustaining bird biodiversity.
- Managing these elements can enhance the effective size of protected areas and inform land-use strategies.
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