University of Arizona

What you'll study

This programme provides intensive training across core areas of evolution and ecology, including population genetics, phylogenetics and systematics, evolutionary ecology, community and ecosystem ecology, and quantitative methods for analysing biological data. Students typically take a combination of core and elective modules and undertake an independent research thesis under faculty supervision.

• Core topics: population biology and demography, molecular evolution and phylogenetic methods, evolutionary theory, and statistical ecology.
• Quantitative and laboratory skills: statistical modelling, Bayesian and likelihood approaches, spatial analysis, population genetic lab techniques (e.g. sequencing workflows), and bioinformatics.
• Field and systematics training: field sampling design, natural history and taxonomic methods, community surveys, and experimental field ecology, often using Sonoran Desert and montane ecosystems as study systems.
• Research thesis: an independent, faculty-supervised research project that culminates in a written thesis and is often suitable for publication. Projects can span molecular to ecosystem scales and commonly integrate lab work, field data collection and quantitative analysis.

Students frequently complement their coursework with seminars, journal clubs and collaborative projects across departments such as the Department of Ecology and Evolutionary Biology, School of Natural Resources and the Environment, and neighbouring research units like Biosphere 2 and campus field stations.

Entry requirements

Applicants should hold an accredited bachelor’s degree in biology, ecology, evolutionary biology, zoology, environmental science or a closely related discipline with evidence of strong academic performance. Applicants without a directly comparable degree but with substantial relevant coursework and research experience may also be considered.

• Academic record: competitive undergraduate GPA and relevant coursework in genetics, ecology, evolution, statistics and field or laboratory methods.
• Research experience: prior laboratory or field research, demonstrated in a CV and described in the statement of purpose, strengthens an application; some applicants arrive having completed an undergraduate thesis or research internships.
• Supporting documents: statement of purpose outlining research interests and potential faculty mentors, academic transcripts, curriculum vitae, and at least two letters of recommendation from academic or research supervisors.
• Standardised tests and language: check the department for current policies on standardised tests; international applicants must demonstrate English proficiency via TOEFL, IELTS or equivalent unless exempt.
• Faculty match: because the programme is research-focused, successful applicants typically identify and contact potential faculty advisors whose research aligns with their interests prior to application.

Career prospects

Graduates move into a range of careers that apply training in evolution, systematics and population biology. Many continue to doctoral study and academic research; others take roles in applied science and policy.

• Academic and research careers: progression to PhD programmes, postdoctoral research positions, and university teaching roles.
• Conservation and natural resource management: positions with government agencies, conservation NGOs, and land-management organisations focusing on species conservation, habitat restoration and biodiversity monitoring.
• Environmental consulting and policy: ecological impact assessment, environmental compliance, and advising on conservation policy.
• Biotechnology and genomics: roles using molecular and bioinformatics skills in laboratories, start-ups and industry that require population-genetic and evolutionary expertise.
• Data science and applied quantitative roles: positions that leverage statistical and modelling skills for ecological forecasting, spatial analysis and biodiversity informatics.
• Science communication and outreach: museum, education and public engagement roles that translate research into public-facing programmes.

Why study at University of Arizona

The University of Arizona offers strong, interdisciplinary strengths in ecology and evolutionary biology with access to a wide range of ecosystems—from Sonoran Desert to sky-island mountains—providing exceptional opportunities for field research. The campus hosts specialised facilities and collaborative centres that support cutting-edge work, including well-equipped molecular and computational laboratories, long-term ecological study sites and Biosphere 2-based research platforms.

• Research-active faculty: faculty members work across diverse taxonomic groups and scales, enabling supervision for a broad array of thesis topics.
• Field opportunities: proximity to varied habitats and long-standing field stations facilitates hands-on training in sampling, experiments and long-term monitoring.
• Interdisciplinary collaboration: easy collaboration with departments and institutes in ecology, hydrology, genomics, and climate science expands methodological and thematic options for students.
• Professional development: seminars, workshops and networks on campus support grant writing, teaching experience and preparation for both academic and applied careers.