Winnie Hallwachs
| Winnie Hallwachs | |
|---|---|
| Born | 1954 United States |
| 🏳️ Nationality |  United States Costa Rica (Honorary) |
| 💼 Occupation | |
| Known for | DNA Barcoding of tropical insects Co-founder of Área de Conservación Guanacaste |
Winifred "Winnie" Hallwachs (born 1954) is a tropical ecologist and entomologist. Along with her husband Daniel Janzen, she is a co-founder of the Guanacaste Dry Forest Conservation Fund (GDFCF) and a technical advisor to the Costa Rican government on biodiversity management.
While Janzen is often the public face of their work, Hallwachs is credited as the "architect" behind the logistics of the **Caterpillar Inventory** and the massive DNA barcoding initiative that has identified thousands of "cryptic species" (species that look identical but are genetically distinct) in Costa Rica.[1]
Research
DNA Barcoding
Hallwachs is a leader in the integration of genetic technology with field ecology. She collaborates with the **Centre for Biodiversity Genomics** (University of Guelph) to manage the world's largest dataset of tropical insect barcodes. Her work demonstrated that tropical diversity is significantly higher than previously estimated due to the presence of cryptic species complexes.
The GDFCF
She serves as the Vice President of the **Guanacaste Dry Forest Conservation Fund**, a non-profit that raises millions of dollars to buy land for conservation in Guanacaste and to pay the salaries of local parataxonomists.
References
- ↑ Climate change doesn't spare the smallest. Penn Biology. Retrieved 2026-02-05.
