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Related Experiment Video

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A Simple Flight Mill for the Study of Tethered Flight in Insects
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Insect behaviour: migratory bands give crickets protection.

Gregory A Sword1, Patrick D Lorch, Darryl T Gwynne

  • 1Northern Plains Agricultural Research Laboratory, US Department of Agriculture, Agricultural Research Service, Sidney, Montana 59270, USA. gsword@sidney.ars.usda.gov

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|February 18, 2005
PubMed
Summary
This summary is machine-generated.

Migratory bands of Mormon crickets and locusts offer safety in numbers. Joining these massive insect groups significantly lowers an individual's risk of predation, suggesting this behavior evolved for group protection.

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Area of Science:

  • Ecology
  • Behavioral Ecology
  • Entomology

Background:

  • Mormon crickets and juvenile locusts form massive migratory bands.
  • These bands can devastate agricultural areas.
  • The reasons behind band formation are not well understood.

Purpose of the Study:

  • To investigate the ecological and evolutionary advantages of migratory band formation in Mormon crickets and locusts.
  • To determine if band membership provides benefits to individual insects.

Main Methods:

  • Radiotelemetry was employed to track individual insects within migratory bands.
  • The study focused on Mormon crickets and juvenile locusts.

Main Results:

  • Band membership was found to significantly reduce the likelihood of individual insects being preyed upon.
  • The collective movement and large numbers within bands appear to offer substantial protection.

Conclusions:

  • Migratory banding in these insects likely evolved as a strategy for predator avoidance.
  • Group living provides a survival advantage for individuals within these large aggregations.