Francisco Castellanos

I'm interested in

About

Born in the resplendent city of Riobamba and raised in Quito, I lived two decades of my life amongst the amazing Ecuadorian mountainous landscapes. From an early age, I was ingrained with understanding the importance of protecting life in all of its forms. Quickly my love for animals, Biology and Ecology grew and eventually led me to Argentina, where I pursued a Bachelor of Sciences in Genetics.

B.S, M.S & PhD Student.


While pursuing my undergraduate degree at Universidad Nacional de Misiones, I ventured into studying chromosomal features in the elusive Myotis bat genus. Unsolved questions from this work woke in me a particular interest in Transposable Elements and in their potential to be used as molecular markers to solve intricate phylogenetic relationships in this group.

As part of my Master of Science projects at the Ray Lab, my research on immune response of bats enabled me to infer the evolution of gene families related to antimicrobial peptides in this remarkable group of mammals. Additionally, I laid the groundwork to characterize a specific type of Transposable Element to construct homoplasy-free phylogenies in Chiroptera. Currently, as a PhD student, one of my projects focuses on optimizing this pipeline with the aim of expanding its applicability to other taxa. While my primary research interests revolve around taxonomy, I also explore other adaptive traits that make bats unique among mammals, with metabolism being a key focus.

As a member of the Fundación Oso Andino, my involvement extends beyond Genetics and bat research. I lead projects that seek to study the behavior of large mammals by means of analyzing GPS tracking data. Using novel bioinformatic non-parametric methods, I am looking to understand how Andean bears, Andean foxes and tapirs, make use of their natural habitat and what resources and environmental variables may have an impact on how they move across their utilization distributions.

Professional Experience

2022

Bat1K Regional Chair

Bat1K Consortium - Regional Chair for Ecuador
2021

Research Collaborator

The Ray Lab, Texas Tech University, USA

Ecuadorian bats: A key to investigating aging and metabolic trade‑offs based on feeding habits and transposable element evolution

RAPID: Collaborative Research: Immunological adaptations in bats to moderate the effect of coronavirus infection

2020

Scientific Director

Fundación Oso Andino, Ecuador

Space use and movement Ecology of large mammals in the Ecuadorian Andes.

2021

Teaching Assistant

Texas Tech University, USA
  • Biology I. BIOL1403. Fall 2021/2022
  • Biology II. BIOL1404. Spring 2022/2023
  • Genetics. BIOL3416. Summer 2022
  • Genomes and Genome Evolution. BIOL4340. Fall 2023

Educational Background

2024

Biology PhD student

The Ray Lab, Texas Tech University, USA.
2023

Master of Science in Biology

The Ray Lab, Texas Tech University, USA.

A Comparative Genomics Approach to Unravel the Evolutionary Dynamics of Transposable Elements and Innate Immune Genes in Chiroptera.

2020

Bachelor of Sciences in Genetics

Universidad Nacional de Misiones, Argentina.

Cytogenetic and molecular studies in species of the Genus Myotis in Northern Argentina.

Publications

2025

New altitudinal record of Myotis moratellii

Check List

Castellanos, F.X., Simba, L., Brito, J. New altitudinal record of Myotis moratellii Novaes et al., 2021 (Chiroptera, Vespertilionidae) in the northwestern foothills of Ecuador. Check List 21(2).

2023

The evolution of antimicrobial peptides in Chiroptera

Frontiers in Immunology

Castellanos, F.X., Moreno-Santillan, D., Hughes, G.M., ..., Corthals, A.P., Ray, D.A. and Dávalos, L.M. The evolution of antimicrobial peptides in Chiroptera. Frontiers in Immunology 14.

2021

Andean Fox movement patterns in Cotopaxi National Park

Mammalia

Castellanos, A., Castellanos, F. X., Kays, R. and Brito, J. A pilot study on the home range and movement patterns of the Andean Fox Lycalopex culpaeus (Molina, 1782) in Cotopaxi National Park, Ecuador. Mammalia 86(1), 22-26.

Conferences

2024

A SINE-based method to reconstruct concordant phylogenies across Chiroptera

52nd North American Bat Research Conference, Guadalajara, México

Oral Presentation. Karl Koopman Award for Best Student Presentation.

2024

New insights into Andean bear movement ecology across the Ecuadorian Andes

28th North American Association for Bear Research and Management Conference, Edmonton, Canada

Oral Presentation.

2023

deAMPlifying the Immune Response? Antimicrobial Peptides Evolution in Chiroptera

Evolution 2023, Albuquerque, USA

Oral Presentation

2018

Chromosomal studies in some species of the genus Myotis

XXXI Argentine Conference of Mastozoology, La Rioja, Argentina

Castellanos, F.X., Labaroni C.A., Ferro, J.M., Taffarel, A., Baldo, D.J, and Sánchez, M.S. Chromosomal studies in some species of the genus Myotis (Chiroptera: Vespertilionidae) from Northern Argentina. Poster Presentation.

Awards & Honors

2025

J. Knox Jones, Jr., Memorial Endowed Scholarship

Award to graduate students at TTU with research interests in mammalian systematics and natural history.

2023

Bat Biology Foundation Award

Granted to undertake field campaigns in several Reserves and National Parks in Ecuador and to sequence the genomes of several native and endemic bat species.

2022

General Fellowships for New and Continuing Graduate Students

Fellowship granted by Texas Tech University covered tuition costs over the summer period plus research funds.

Skills

My current bioinformatics projects demand some skills on programming languages, I've listed the ones I use and understand the most. I supplement my coding skills with some knowledge on design software since I enjoy preparing or polishing figures for presentations and/or posters.

R 90%
Bash 80%
Python 50%
Photoshop 90%
Illustrator 70%

Portfolio

This is some of the visual work I have created by merging the results of software for phylogenetic reconstruction as IQ-TREE and Mega, and the R programming language, with Adobe Illustrator and Photoshop. Most of my plots are heavily coded in R with the packages: tidyverse, movevis, rayshader, elevatr,

  • All
  • GIF
  • R
  • QUARTO
  • ADOBE
  • POSTER
Cotopaxi Volcano 3D animation

Cotopaxi Volcano

A 3D animation of the Cotopaxi volcano

Fox movements visualization in Cotopaxi

Fox Movements

Movements of a fox in Cotopaxi

Cuicocha Lake 3D render

Cuicocha Lake

A 3D render of the Cuicocha lake

Telemetry online book cover

Telemetry Book

Online book: Introduction to telemetry

Myotis moratellii phylogenetic tree

Myotis moratellii

Myotis moratellii in Northwestern Ecuador

Thomasomys species multivariate analysis

Thomasomys

A new species of Thomasomys rodent

Antimicrobial Peptides research poster

Antimicrobial Peptides

Diversity of antimicrobial peptides in bats

Contact

Location:

Department of Biological Sciences,
Texas Tech University.
2901 Main St, Lubbock, TX 79409

Loading
Your message has been sent. Thank you!