Contact Us

A chipmunk looks back from a ledge, seeming to say "hello!".
A golden-mantled ground squirrel in Rocky Mountain National Park says "hello"!

NPS photo/M. Reed

Biological Resources Division
Natural Resources Stewardship and Science Directorate

1201 Oakridge Drive, Suite 200
Fort Collins, CO 80525

Phone: 970-225-3505
Fax: 970-225-3585

Office of the Division Chief


Wildlife Conservation Branch
Wildlife Health Branch
Landscape Restoration and Adaptation Branch
Biodiversity Discovery Program

Office of the Division Chief

Elaine Leslie
Biological Resources Division Chief
Expertise: terrestrial and marine biology, non-native plants and animals, landscape corridors and restoration, cultural resources, 18th century landscape ecology
Email Elaine

Kass (Hardy) Bissmeyer
Management Assistant
Expertise: large landscape conservation, landscape initiatives, corridors, pollinators, NP System Plan
Email Kass

Marie Felder
Administrative Support Assistant

Email Marie

Sarah Sparhawk
Visual Information Specialist
Expertise: science communication, graphic design, outreach materials
Email Sarah

Wildlife Conservation Branch

Mike Wrigley
Branch Chief

Email Mike

Amanda Hardy, PhD
Wildlife Biologist
Expertise: human-wildlife interactions, terrestrial mammal ecology, climate change adaptation, bison conservation, road ecology
Email Amanda

Nicole Brandt
Biological Science Technician
Expertise: marine wildlife, marine biologist, migratory wildlife, stranding programs
Email Nicole

Dave Trevino
Environmental Protection Specialist

Email Dave

Jennifer Williams
Partners in Amphibian and Reptile Conservation (PARC) National Federal Coordinator
Expertise: interagency actions for PARC-related initiatives, herpetology
Email Jennifer

William (Bill) Austin
Wildlife Biologist
Expertise: threatened and endangered/special status species
Email William

Jennifer Sieracki
Invasive Animal Coordinator
Expertise: invasive plants, data management, spatial modeling
Email Jennifer

Wildlife Health Branch

Jenny Powers
Acting Branch Chief
Expertise: wildlife anesthesia, wildlife fertility control, disease of ungulates
Email Jenny

Scott Ratchford
Wildlife Technician
Expertise: wildlife capture and handling, anesthesia, biological sampling, GIS, database management
Email Scott

LCDR Danielle Buttke, DVM, PhD, MPH, DACVPM
One Health Coordinator
Expertise: public health, zoonotic disease, environmental health
Email Danielle

Elizabeth Wheeler
Veterinary Technician

Email Elizabeth

Nathan Galloway
Disease Ecologist
Expertise: wildlife disease, population ecology, statistical models
Email Nathan

Tracy Thompson
Veterinary Medical Officer
Expertise: animal welfare veterinarian, herpetological health specialist
Email Tracy

Michelle Verant
Wildlife Veterinarian
Expertise: veterinary assistance and consultation, wildlife mortality investigation, One Health, science communication
Email Michelle

Allie Petersen
IACUC Admistrative Assistant
Geoscientists-In-The-Parks Guest Scientist
Colorado State Univeristy Contractor
Expertise: animal welfare, wildlife health, IACUC
Email Allie

Landscape Restoration and Adaptation Branch

Lori Makarick
Branch Chief
Expertise: native plant conservation, invasive plant management, forest health, ecological restoration, pollinator habitat protection
Email Lori

Terri Hogan
Invasive Plant Program Manager
Expertise: plant ecology, invasive plant management, rare, threatened and endangered plant species, plant community ecology
Email Terri

Greg Eckert

Email Greg

James C Howard IV
IPM Physical Scientist
Expertise: pesticides, integrated pest management, pollinators, forest health
Email James

Jordan Spaak
Expertise: livestock/grazing management, rangeland/grassland management, domestic stock and wildlife interactions
Email Jordan

Biodiversity Discovery Program

Kris Barnes
Biodiversity Discovery Program Lead

Email Kris

Kiersten Jarvis
Project Manager
Expertise: community engagement, citizen science, stewardship projects, diversity in parks, youth
Email Kiersten

Last updated: December 17, 2018