Stress, health

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Stress, health reproduction

• WFSC 422 Ethology
• Presentation 6.3

Dr. Jane M. Packard, WFSC TAMU j-packard_at_tamu.edu
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Example- Dwarf mongoose
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Reproductive suppression?

• Stressful- unstable groups
• delay maturity- hormones turned off
• injury or starvation- poor health
• chronic adrenal response (long-term)
• not stressful- stable relations
• deferred reproduction
• breed better at a later age
• positive effect of appeasement grooming on
  serotonin system (reduces adrenal response)

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Example- wolves (social)
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Example- ocelot (solitary)
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SUMMARY

• continuum of more to less social dwarf
  mongoose, wolves, ocelot
• social stressors more likely in unstable groups
  behavioral mechanisms in stable groups
• resistance to social stressors in asocial species
• applied management consider social structure in
  housing groups (e.g. socialasocial,
  stableinstable)

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Action Items

• Do answers for Q6.5, Q6.6
• Search Web of Science for Sapolsky, R.M., Asa
  C, Sunquist M
• Search Google Scholar for reproductive
  suppression social stress
• Post examples and sources on WebCT Discussion for
  Unit 6