Agricultural and Biological Sciences Faculty & Staff


Dr. Drew Sieg
Agricultural & Biological Sciences Chair and Associate Professor of Biology

Open Office Hours Via Zoom or in person (MG 3054)

MWF 1:30-3, R 1-3

Other times by app't, send me an email!

Personal Pronouns: he/him


Dr. Brett Berke
Associate Professor of Biology (2015)

Spring 2026 (Zoom and F2F; https://truman-edu.zoom.us/j/3226642392)

Mon 230-420

Wed 1030-1120

Thurs 1030-1

Fri 230-330

Appointments can also be scheduled upon request

Personal Pronouns: he/him/his

Dr. Sarah Berke
Assistant Professor of Biology

Monday 11:30 am - 12:20 pm

Wednesday: 11:30 am - 12:30 pm and 2:30-2:30 pm

Friday 11:30 am - 12:30 pm and 1:30 - 3:30 pm

Or by appointment

Personal Pronouns: she/her

Ms. Emily Costello
Lecturer in Agricultural Science, Equestrian Show Team Coach

Spring 2026

9:30am-12:00 pm M-R and10am-12pm F in MG 3078, other times by appointment, office hours can be in person or over zoom (ecostello2020)

Personal Pronouns: She/Her

Dr. Maria Beatriz De Souza Cortez
Assistant Professor of Biology (2024)

Monday: 8:30am - 10:00am

Tuesday: 9:00am - 11:00am and 4:30pm - 5:30pm

Wednesday: 1:30pm - 3:00pm

Thursday: 11:30am - 1:30pm

Friday: 8:30am - 10:30am

For Office Hours by appointment, please email me at mbscortez@truman.edu

Personal Pronouns: she, her, hers

Dr. Joanna Hubbard
Associate Professor of Biology

Fall 2025 & Spring 2026: I am on sabbatical this year. If you need to contact me, please reach out via email.

Personal Pronouns: she, her, hers

Dr. Bob Johnson
Assistant Professor of Agricultural Science

MWF: 10:30 -12:20 and 1:30 - 2:20

Thursday: By appointment

Personal Pronouns: he/him/his

Dr. John Ma
Professor of Biology (2005)

Fall 2025 Office hours:

Tue/Wed 12:30 pm – 2:30 pm; Thu 12:30 pm – 1:30 pm

No office hours during the final’s week.

Dr. Stephanie Maiden
Associate Professor

Spring 2026
WRF 9-11am
(some Thursdays I have a meeting 9:30-10:20 am)

Personal Pronouns: She/Her/Hers

Dr. Hajeewaka Mendis
Assistant Professor of Biology (2021)

Office hours:

M - 2:30-3:30PM (By appointment only)

T - 11:30AM-12:00PM

W - 9:30AM-12:30PM, 1:30-3:00PM; 

R - 10:30AM-12:00PM, 

F - 9:30-11:00AM, 1:30-2:30PM

(MG3030)

 

Instr. Jeanne Mitchell
Instructor in Biology (1992)

Monday 11:30 - 12:20 and 1:30 to 2:20

Tuesday 9:00 - 11:00

Wednesday 8:30 - 10:20, 11:30 - 12:20, 1:30 - 2:20

Friday  11:30 - 12:20, 1:30 - 2:20

or by appointment. 

Zoom ID 614-047-3210 (zoom open by arrangement)

 

Personal Pronouns: she/her

Dr. Chad Montgomery
Professor of Biology (2007)

M 8:30-11:30, 1:30-4:30; W 11:30-1:30; T Th 12:00-1:00

And by appointment

Dr. Joyce Patrick
Associate Professor of Biology (2015)

My Office Hours for Spring 2026 are:

Mondays 1:30-3:20 PM

Tuesdays 9:30-10:20 AM and 12:30-1:20 PM

Thursdays 9:30-10:20 AM

Fridays 10:30 AM-12:20 PM

Other hours available by appointment.

Personal Pronouns: She/Her

Dr. Michael Seipel
Professor of Agricultural Science

Spring 2026:

M W F 10:30 – 11:30; 1:30-2:30

T & Th 10:00-12:00

I would recommend setting office hour appointments in advance by email.  I am available to meet in person in MG 3082 or via Zoom. Please email me for Zoom link.

Please schedule academic advising appointments via this link:
Michael Seipel Advising Appointments

Personal Pronouns: He/him/his

Dr. Anton Weisstein
Professor of Biology (2004)

For Spring 2026:

Tue: 10:30 a.m. – 12:30 p.m.

Wed: 2:30 p.m. – 3:30 p.m.

Thu: 10:30 a.m. – 12:30 p.m.

Fri: 2:30 p.m. – 3:30 p.m.

Appointments recommended, but drop-ins welcome.

Personal Pronouns: he/him/his