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Ecology

Preserving the planet’s most precious ecosystems.

Ecology Degree

If you’re passionate about wild animals, natural beauty and the great outdoors, if you’re fascinated by nature shows and podcasts, planet Earth needs you in ecology. Ecology is a branch of biology that examines how living creatures interact with each other and their environment. Join us and learn how to study, protect and restore natural habitats. It’s fun, fascinating and crucial to everyone’s future.

Have fun and fill your life with purpose. Go out and perform vital field work at our 87-acre field station right here near campus. Till and plant in the campus garden. Learn beekeeping and promote bee conservation. Work on lab or field projects side-by-side with your professors and your fellow environmentally conscientious classmates with fascinating life experiences and perspectives. Before you know it, you’ll become an expert in biology and environmental sciences. You’ll be an active part of the solution.

As you advance toward your degree, you’ll do a year-long collaborative research project and present your work at a scientific conference before a roomful of fellow professionals. You’ll take advantage of our internships, such as building nature trails with the Chesapeake Conservancy or conducting research for the Freshwater Institute and Laboratory. By the time you graduate, you can have real-world experience collaborating with government, nonprofit and academic institutions. Launch a life of passion and purpose by starting a career in ecology protecting, conserving, and restoring our natural environments.

HANDS-ON LEARNING IN SUSTAINABILITY

Get your hands dirty and help save the planet at Susquehanna’s Center for Environmental Education and Research (CEER). Home to honeybees, organic gardens and a flock of sweet sheep, CEER provides you a hands-on education like no other.

A greenhouse interior with various plants in pots and containers. Sunlight filters through the glass roof and walls, illuminating the greenery. In the background, gardening tools and equipment are visible.

More Than Metrics

100%

of students conduct yearlong research project with faculty

100%

of students present research at local, national or international conferences

99%

of students receive financial aid through academic merit scholarships and need-based grants

95%

of students study abroad

Straight from the Nest

Michaela Rolecki
Photo of Sam Silknetter

“Susquehanna’s focus on hands-on learning is important to me, because it allows you to practice skills you’ll use in future careers. The faculty is very engaged with students, teaching skills hands-on while you’re learning them. I was fortunate to travel to Costa Rica with the ecology faculty, learning specific field skills and having experiences I would not have had at another university.”

Michaela Rolecki ’25

“I didn’t realize how important undergraduate research is for students in STEM fields. But, having spent the last nine years in consulting work and graduate school, I now know how valuable my research training was at Susquehanna. I did research with faculty all three summers — an experience tough to replicate at larger universities where many more students vie for limited opportunities.”

Sam Silknetter ’14 M.S.

Explore Your Studies

Program Resources

ECOL 100
Introduction to the Science of Ecology
4
4
An introduction to ecology and its relationships with other disciplines of science. Emphasizes analysis of current problems in the ecological sciences, particularly as they relate to decisions that students will have to make as citizens of a scientific/technological society. 4 SH. 3 lecture hours, 3 laboratory hours. CC: Scientific Explanations.
ECOL 110
Biogeodiversity
4
4

Explores the influences of geology (abiotic factors) on the diversity of life. Students investigate multiple issues posed by the science and technology of the diversity of life on this planet. Particular issues range from how many species occur on earth to how to establish effective public policy guidelines for protection of life’s diversity. Pre-requisites: BIOL-101 or EENV-101 or ECOL-101 or BIOL-205. 4 SH. 3 lecture hours, 3 laboratory hours. CC: Team Intensive,Writing Intensive.

ECOL 113
Geology and the Environment
4
4

Fundamental concepts and principles of geology and the processes and materials that interact at the surface of the Earth. The course includes rocks and minerals, plate tectonic interactions, weathering and erosion, the cycling of materials through different environments, and how we use these resources. Same as EENV-113. 4 SH. 3 lecture hours, 3 laboratory/field hours.

ECOL 201
Community and Ecosystems Ecology
4
4

Ecosystem ecology addresses the interactions between organisms and their environment as an integrated system. The physical setting of an ecosystem—including its climate, geology and soils—interacts with water, nutrients and energy to control the organisms that thrive there. Prerequisite: BIOL-101 or ECOL-100 or EENV-101. 4 SH. 3 lecture hours, 3 laboratory/field hours.

ECOL 220
Biostatistics
4
4

Biostatistics will focus on the collection and analysis of biological data. The course is designed to introduce students to the fundamental concepts of experimental and sampling design, as well as quantitative hypothesis testing. Some equations will be covered in the course; however, the emphasis will be on interpretation and presentation of statistical results. These concepts will be reinforced in upper level biology/ecology/neuroscience courses taken by students to fulfill distribution requirements during their junior and senior years. Same as BIOL-220. Prerequisites: sophomore standing and either BIOL-101, BIOL-102 or ECOL-100. 4 SH. 4 lecture hours. CC: Analytical Thought.

ECOL 380
Wetlands Analysis
4
4

Wetlands are complex environments that are controlled by chemical, biological and physical interactions. The course explores the structure, function, management and jurisdictional delineation of non-tidal freshwater wetlands. Lecture material covers the history of wetlands use/abuse, current definitions and analysis of the common indicators of wetland function; hydrology, soils and vegetation. The laboratory consists of plant identification, techniques for hydric soil analysis, identification of wetland hydrology indicators using current methodologies for delineation of jurisdictional wetlands. Same as EENV-380. Prerequisite: CHEM-103-104 or CHEM-111-112. 4 SH. 3 lecture hours, 3 laboratory/field hours. CC: Writing Intensive.

ECOL 408
Aquatic Ecology
3
3

The ecology of freshwater ecosystems. Emphasizes biota of freshwater and their relationships with physical and chemical components of lakes, streams, and reservoirs. Same as BIOL-408. Prerequisite: BIOL-101 or ECOL-100. 3 SH.

ECOL 409
Aquatic Ecology Lab
1
1

Field laboratory in aquatic ecology techniques. Topics include physical and chemical measurements and the identification and enumeration of phytoplankton, zooplankton, aquatic plants and benthic organisms. Same as BIOL-409. Prerequisite: BIOL-101 or ECOL-100. 1 SH. 4 laboratory hours.

ECOL 501
Independent Study
1-4
1-4

Individual work on selected topics for qualified students under faculty direction. Requires approval of supervising professor and department head. 1-4 SH.

ECOL 509
Student Research I
2
2

Introduces students to methods and techniques of ecological research in the context of a collaborative research project. Prerequisite: Instructor’s permission. 2 SH. 8 contact hours.

ECOL 510
Student Research I
2-4
2-4

Introduces students to methods and techniques of ecological research in the context of a collaborative research project. Prerequisite: Instructor’s permission. 2 or 4 SH. 16 contact hours.

ECOL 511
Student Research II
1-4
1-4

Collaborative research with an emphasis on presentation of data and explanation of results. Prerequisite: Instructor’s permission. 4 SH. 16 contact hours. Capstone. CC: Writing Intensive.

ECOL 560
Interdisciplinary Explorations Biology
2-4
2-4

Explores salient issues in the biological sciences from an interdisciplinary perspective. Prerequisite: sophomore standing and BIOL-101, BIOL-102, ECOL-100 or instructor’s permission. CC: Interdisciplinary. 2-4 SH.

When you enroll at Susquehanna, you’ll be paired with an advisor and application tool to guide you in your course planning and scheduling. The following is an excerpt from the complete course catalog. Enrolled students follow the requirements of the course catalog for the academic year in which they declare each major and/or minor, consult with their advisor(s).


Ecology is an interdisciplinary program that draws on the strengths of the Biology Department and the Earth and Environmental Sciences Department and provides students the possibility of earning either a major or a minor in ecology.

Learning Goals

  • Ecology majors will learn to identify and describe the basic principles and theories of ecology and the related sciences (biology, environmental science and geology). 
  • Using these principles and theories, students will learn to construct and critique logical scientific arguments. 
  • Students will learn to use appropriate skills and techniques to acquire and evaluate scientific evidence. 
  • Students will recognize how basic ecological principles and theories are relevant to the broader university curriculum, as well as to their daily lives. 

Major in Ecology

The Bachelor of Science degree in ecology requires 56 semester hours in biology, earth & environmental sciences and chemistry with grades of C- or better in ecology, biology, and earth and environmental sciences courses. The Bachelor of Science in ecology includes a four-course introductory sequence and a year or more of student research. In addition, the 56 semester hours include 24 semester hours of elective courses with at least 12 drawn from each of Category 1 and Category 2. In cases where the lecture and laboratory components of courses are listed separately, students in the ecology program must take both lecture and laboratory.

16 Introductory Sequence (16 semester hours)

  • 4   ECOL-100 Introduction to the Science of Ecology
    (BIOL-101 Ecology and Evolution, EENV-101 Environmental Science, or EENV-103 Earth System History may substitute as an initial course in the introductory sequence)
  • 4   ECOL-110 Biogeodiversity
  • 4   ECOL-201 Community and Ecosystems Ecology
  • 4   BIOL-220 Biostatistics

24 Elective Courses:

24 semester hours chosen from the following, with at least 12 semester hours taken in Category 1 and 12 semester hours taken in Category 2.

Category 1: Biology Electives:
12 credits must be chosen from the following. The course must be accompanied with the laboratory when offered and at least two courses of the 12 credits must be lab-based.

  • 4   BIOL-312-313 Microbiology
  • 4   BIOL-324-325 Animal Behavior
  • 4   BIOL-326-327 Invertebrate Zoology
  • 4   BIOL-328-329 Natural History of Early Vertebrates
  • 4   BIOL-332-333 Population Biology
  • 4   BIOL-340-341 Marine Ecology
  • 4   BIOL-404-405 Plant Physiology
  • 4   BIOL-408-409 Aquatic Ecology
  • 4   BIOL-460-461 Winter Ecology of Vertebrates
  • 2   ECOL-560 Explorations in Ecology (e.g. Sustainable Food Systems, Biology of Invasive Species, Amphibian Population Declines, Vertebrate Ecology of Costa Rica, Human Evolution and Behavior, etc.)

Category 2: Environmental Science Electives:
12 credits must be chosen from the following:

  • 4   EENV-113 Geology and the Environment
  • 4   EENV-213 Oceanography
  • 4   EENV-220 Water Resources
  • 4   EENV-240 Introduction to Meteorology
  • 4   EENV-242 Climate and Global Change
  • 4   EENV-283 Sedimentology/Stratigraphy
  • 4   EENV-313 The Susquehanna River
  • 4   EENV-360 Geographic Information Systems
  • 4   EENV-380 Wetlands Analysis
  • 4   EENV-383 Soil Science
  • 4   EENV-420 Groundwater Hydrology
  • 4   EENV-430 Chemistry of Natural Waters

8 Student Research*

  • 2   ECOL-509 Student Research I
  • 2 or 4   ECOL-510 Student Research I
  • 4   ECOL-511 Student Research II

* ECOL-509 Student Research I may be taken during the third year for students that require more than one field season of research. ECOL-510 Student Research I may be taken as either 2 or 4 semester hours senior year. Students who have completed ECOL-509 must take no more than 2 semester hours of ECOL- 510.

8   Required Corollary Courses
Students must complete the following corollary chemistry courses:

  • 4  General Chemistry I – choose from: CHEM-103 or CHEM-111
  • 4  General Chemistry II – choose from: CHEM-104 or CHEM-232

Note: Additional corollary courses are strongly recommended for those intending to pursue graduate training. These recommended courses include:

  • CHEM-221 Organic Chemistry I
  • CHEM-222 Organic Chemistry II
  • CHEM-242 Methods of Chemical Analysis
  • Introductory Physics I (PHYS-202, or PHYS-204)
  • Introductory Physics II (PHYS-205 or PHYS-206)

Majors must also take a comprehensive ecology examination prior to graduation. Exam content will be drawn from introductory sequence courses. Students have multiple opportunities to take the comprehensive examination; only the highest score is recorded on the transcript. Performance on the comprehensive examination is reported on the transcript as high pass, pass or fail.

Honors in Ecology

The ecology program encourages and recognizes superior academic performance in ecology.

Candidates for academic honors must:

  • Maintain a cumulative GPA of 3.25 and a GPA of 3.50 in major courses to qualify for academic honors.
  • Successfully complete Student Research I and II (ECOL-510 and ECOL-511) and earn a grade of B- or better in these courses. 

Candidates for research honors must:

  • Be nominated by a member of the faculty who teaches within the ecology program by midterm of Student Research II (ECOL-511). 
  • Submit an acceptable research thesis based upon two semesters of Student Research (ECOL-510 and ECOL-511). 
  • Pass an oral comprehensive examination of their thesis in their final semester. The oral comprehensive examination is administered by faculty who teach within the ecology major. 

Ecology Research Facilities

The Center for Environmental Education and Research (CEER) is an 87-acre field station for observational and manipulative studies in ecology, and is home to the Freshwater Research Institute, a research laboratory and center for freshwater ecological research. Located adjacent to campus, the CEER also includes a research greenhouse, research plots and storage facilities for field equipment. In addition, the department operates the George A. Hepner Ecology Laboratory at Camp Karoondinha that provides a small research laboratory and a variety of habitats, offering students experience through short- and long-term experiments. The property features more than 600 acres from 600 to 1,800 feet above sea level. It includes both deciduous and mixed coniferous forests, an 8-acre lake, Penns Creek and small streams. 

When you enroll at Susquehanna, you’ll be paired with an advisor and application tool to guide you in your course planning and scheduling. The following is an excerpt from the complete course catalog. Enrolled students follow the requirements of the course catalog for the academic year in which they declare each major and/or minor and consult with their advisor(s).


Minor in Ecology

The minor in ecology requires 24 semester hours in ecology, biology, and earth and environmental sciences with grades of C- or better. The first course in the minor may be one of the following: ECOL-100, BIOL-101, EENV-101 or EENV-103. That introductory course should be followed by the sequence of ECOL-110/BIOL-204 and ECOL-201. Following the completion of the introductory sequence, the student will take at least four semester hours from Category 1 (biology) and four semester hours from Category 2 (earth and environmental sciences).

Double-counting restriction for interdisciplinary minors

Only 8 semester hours of this minor may be double-counted toward the student’s major.

Category 1: Biology Electives (must be taken with the laboratory)

  • 4 BIOL-312/313 Microbiology
  • 4 BIOL-324/325 Animal Behavior
  • 4 BIOL-326/327 Invertebrate Zoology
  • 4 BIOL-328/329 Natural History of Early Vertebrates
  • 4 BIOL-332/333 Population Biology
  • 4 BIOL-404/405 Plant Physiology
  • 4 BIOL-408/409 Aquatic Ecology
  • 4 BIOL-460/461 Winter Ecology of Vertebrates

Category 2: Environmental Science Electives

  • 4 EENV-213 Oceanography
  • 4 EENV-220 Water Resources
  • 4 EENV-240 Introduction to Meteorology
  • 4 EENV-242 Climate and Global Change
  • 4 EENV-283 Sedimentology/Stratigraphy
  • 4 EENV-313 The Susquehanna River
  • 4 EENV-360 Geographic Information Systems
  • 4 EENV-380 Wetlands Analysis
  • 4 EENV-383 Soil Science
  • 4 EENV-420 Groundwater Hydrology
  • 4 EENV-430 Chemistry of Natural Waters
  • Natural resources manager
  • Wildlife and fisheries officer
  • Environmental consultant
  • Field ecologist
  • Environmental protection specialist

DIVE INTO SUSQUEHANNA’S FRESHWATER RESEARCH INSTITUTE

The Susquehanna River is a hidden gem teeming with life where you can study the local ecology. Grab your specimen jar, lab notebook and become a part of a summer crew that ensures this valuable resource will always be protected.

A person wearing a red hat and glasses, smiling and holding a twig with a small insect. The focus is on the insect, with the person's face slightly blurred in the background.

Center for Environmental Education & REsearch

ECOLOGY at the Ceer

Susquehanna University’s state-of-the-art Center for Environmental Education and Research (CEER) is the nexus of Susquehanna’s research and conservation efforts.

Students pursuing an ecology degree will engage in multiple unique learning experiences at the CEER including:

  • Watching trail cameras for wildlife.
  • Collecting spiders in different environments.
  • Using plant plots they for succession.
  • Conducting diversity studies.
  • Participating in activities in the greenhouse.
  • Working with Freshwater Research Institute and Chesapeake Staff to develop environmental education.
  • Gain internship experience.
Aerial view of a rural landscape featuring a large red barn with a white roof, surrounded by lush green fields. A paved road runs alongside the barn. In the background, a field with rows of solar panels is visible. Trees and greenery are scattered throughout.

Contact Us

Ecology

514 University Ave.
Selinsgrove, Pa. 17870

Location

Natural Sciences Center

Start your journey.