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This video was filmed on Wednesday, June 13th at the 2012 National Geographic Explorers Symposium at National Geographic Society headquarters in Washington, D.C.
National Geographic Emerging Explorer and behavioral ecologist Iain Couzin shares lessons from a cannibalistic locust plague. Whether looking at what causes locusts to swarm, or how people function as a society, Couzin is finding fascinating ways to explain how organisms accomplish things in groups that they never could as individuals.
- Why do locusts undergo mass migrations? (start-2:04 min.)
- A cannibalistic discovery: studying locust hopper bands with motion-tracking software (2:05-3:15 min.)
- A perilous field study in Mauritania (3:16-5:08 min.)
- Another cannibalistic discovery: reviewing data from the Mauritania field study (5:09-6:35 min.)
- Why locusts and crickets swarm (6:36-7:10 min.)
- How non-cannibalistic animals make group decisions (7:11-10:08 min.)
- The influence of networks, opinions, and non-informed individuals (10:09-13:38 min.)
- Using fish to test a prediction about group decision making (13:39-15:31 min.)
- Future studies: contagious behavior (15:32-16:29 min.)
Strategies for Using Video in a Variety of Learning Environments
- Have students preview several of the videos and choose the one they find most inspiring. Have students describe in writing a conversation they might have with the speaker(s).
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Term Part of Speech Definition Encyclopedic Entry animal migration Noun
process where a community of animals leaves a habitat for part of the year or part of their lives, and moves to habitats that are more hospitable.
anything an organism does involving action or response to stimulation.
chirping, leaping insect.
Emerging Explorer Noun
an adventurer, scientist, innovator, or storyteller recognized by National Geographic for their visionary work while still early in their careers.
field work Noun
scientific studies done outside of a lab, classroom, or office.
Encyclopedic Entry: field work locust Noun
type of small grasshopper that often travels in huge swarms. Also called the short-horned grasshopper.