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Alexander Pulgarin Diaz

Alexander Pulgarin Diaz

Doctoral Researcher

Data-driven research supporting strategic decisions

School of Forest Sciences, Faculty of Science, Forestry and Technology

[email protected] | +358 50 471 8055

Information Publications

Unlocking Insights from Complex Data. I am a researcher who moves beyond the data, transforming complex information into strategic solutions that drive evidence-based decisions. With a strong background in analytical methods and developing predictive models, I focus on optimizing outcomes and creating impactful, data-driven solutions for real-world challenges.

Research groups

Other published papers

• LÓPEZ-GALÉ, Y., CARRASCAL-PÉREZ, F., PULGARÍN D., J.A., BURBANO-FIGUEROA, O., ARCILA C., A.M. 2022. Phytophagous insects associated with avocado orchards (Persea americana Mill.) in the Colombian Caribbean. Revista Colombiana De Entomología: Vol. 48 No. 2.
https://doi.org/10.25100/socolen.v48i2

• OROZCO O., L.F., GIRALDO S., C.E., PULGARÍN D., J.A., GRISALES V. N.Y. 2021. First record of Phidotricha erigens (Lepidoptera: Pyralidae) feeding on Furcraea spp. in Colombia. Rev. Ceres 68(6): 624-627.
https://www.scielo.br/j/rceres/a/GdVhqzX4YZb764z6VgfsyVr/

• PULGARÍN D., J.A, GALLEGO, L.E., HERRERA-FLOREZ, A.F., & QUIROZ, J.A. 2018. First report of Zethus schadei (Hymenoptera: Vespidae) as natural enemy of Hypsipyla grandella Zeller (Lepidoptera: Pyralidae) from Colombia. Acta Zoológica Mexicana (NS), 34(1), 1-3.
http://www.scielo.org.mx/scielo.php?pid=S0065-17372018000100216&script=sci_arttext

• BURBANO-FIGUEROA, O., ARCILA, A., VASQUEZ, A. M., CARRASCAL, F., SALAZAR PERTUZ, K., MORENO-MORAN, M., ROMERO-FERRER, J., & PULGARÍN D., J.A. 2018. First report of Bionectria pseudochroleuca causing dieback and wilting on avocado in the Serrania de Perijá, Colombia. Plant Dis, 102, 238.
https://apsjournals.apsnet.org/doi/full/10.1094/PDIS-01-17-0010-PDN

• HERRERA-FLOREZ, A.F., PULGARÍN D., J.A. & QUIROZ-GAMBOA, J. A. 2017. A new species of Mesostenus Gravenhorst (Hymenoptera: Ichneumonidae: Cryptinae) from Colombia. Zootaxa, 4306(4), 593-600.
https://www.biotaxa.org/Zootaxa/article/view/zootaxa.4306.4.9

• PULGARÍN D., J.A. 2012. Scolytinae (Coleoptera: Curculionidae) associated to two woods in a premountain very humid forest (Antioquia, Colombia). Revista Facultad Nacional de Agronomía Medellín, 65(1), 6459-6466.
http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0304-28472012000100016

• PULGARÍN D., J.A. 2009. Damaging insects of the thirteen more commercialized woods in the Aburra’s Valley. Revista Colombia Forestal 12: 51-62.
http://www.scielo.org.co/pdf/cofo/v12n1/v12n1a05.pdf

• PULGARÍN D., J.A. 2004. Some observations on the nest structure and colony composition of Pseudomyrmex termitarius (Hymenoptera: Formicidae) in a locality in Bello (Antioquia, Colombia). Revista de la Facultad Nacional de Agronomía, Medellín, 57 (1): 2161-2175.
http://www.scielo.org.co/scielo.php?script=sci_abstract&pid=S0304-28472004000100002&lng=en&nrm=iso

Recent presentations

  • Pulgarín Díaz, J. A., Melin, M., Lyytikäinen‑Saarenmaa, P., Peltola, H. & Tikkanen, O.-P.  Characterization of the stands damaged by Ips typographus in Finland. The International Boreal Forest Research Association. IBFRA Conference 28-31 August 2023. 
  • Tikkanen, O.-P., Pulgarín, J. A., & Melin, M.  Spread of Panolis flammea, Lymantria monacha and L. dispar in Far North of Europe: old maps and new trapping results. IUFRO Conference Division 7 – Forest Health Pathology and Entomology. September 2022.
  • Pulgarín D., J. A., Melin, M., Peltola, H. & Tikkanen, O.-P. Ips typographus damages nationwide patterns and causes in Finland. IUFRO Conference Division 7 – Forest Health Pathology and Entomology. September 2022.
  • Pulgarín D., J. A., Melin, M., Peltola, H. & Tikkanen, O.-P. Characterization of the stands damaged by Ips typographus in Finland. Presentation in the Webinar UNITE WP2 cruise. February 2022.

In the media

Map of probability of SBB damage in Southern Finland during 2022.

Predicted probability of SBB damage in Southern Finland during 2022. Most stands had low risk. The top 1% of stands with higher probabilities are presented in dark red. John Alexander Pulgarín Díaz*, Markus Melin, Lauri Mehtätalo, Suraj Polade, Juha Aalto, Heli Peltola, Olli-Pekka Tikkanen. 2025. “Stand, landscape and climatic attributes contributing to the probability of Ips typographus (SBB) damage in Finland”. Forests´ Future 2025. Bark Beetle Outbreak in Central Europe – Consequences and Future Challenges. Průhonice (Prague), September 22nd – 25th .  The map

Keywords

forest ecology Forest insect pests spatial analysis tropical ecology tropical forestry

Publications

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