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Dibs Fall 2026

GEOG 109

Biogeography of Plant and Animal Invasions

Course statistics

Predicted GPA
3.34
n = 112 · 2 terms · ± 0.049
A range
54%
of letter grades
Taken P/NP
2%
50% of those passed
D / F / W
2.7%
incl. withdrawals

Sections in Fall 2026

Not offered in Fall 2026.

Enrollment history

Final enrollment per term, averaged across that term's sections. Four years deep, summer excluded. Per-section live curves are on each section page.

  • 5722F
  • 5724F
Enrolment by term: 22F 57, 24F 57
Peak 57 Most recent 57 in 24F 2 terms on record

Grade distribution

  • A+ 2 · 1.8%
  • A 38 · 33.3%
  • A- 20 · 17.5%
  • B+ 11 · 9.6%
  • B 18 · 15.8%
  • B- 6 · 5.3%
  • C+ 8 · 7.0%
  • C 5 · 4.4%
  • C- 1 · 0.9%
  • D 1 · 0.9%
  • F 2 · 1.8%
  • P 1 · 0.9%
  • NP 1 · 0.9%

Grey bars are non-letter outcomes — P/NP, S/U, incompletes. They are excluded from the GPA entirely rather than scored, because counting a P as a 4.0 would be a fabrication.

By instructor

Instructor Predicted Raw n Terms A range
ILLES, LILIA I 3.32 3.32 112 2 54%

“Predicted” is shrunk toward the course average, which is itself shrunk toward the department — so an instructor with a handful of students sits near the course mean rather than topping the list.

By term