A bugs life

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Seminar on research by my graduate students on plant-insect interactions.

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A bugs life

  1. 1. A bug’s life: trophic implications of plant invasions. Spafford, Reid, & Lortie
  2. 2. bugs have friends too
  3. 3. theory community invasion trophicmethods iPod dust buster contraststrophic implication research interactions pollinators drivers
  4. 4. integrated community concept
  5. 5. net interactionsThe sum of all direct and indirect, positive and negativeinfluences which change in a non-proportional manner along productivity gradients.
  6. 6. wave particle duality - +light community
  7. 7. keystone modulenon-keystone module
  8. 8. h diversityH L+ - predator
  9. 9. disturbanceEICAENERfacilitationfluctuating resource availabilitynovel weaponspropagule pressure
  10. 10. flip & extend thisto invertebrates
  11. 11. nano with camera
  12. 12. /"0"12%*3%()**%pans /"0"12%*%()**% !"#$%&%()**% !"+,%*.%()**% !"+,%-%()**% !"#$%(*%()**% /"0"12%*3%()**% /"0"12%*%()**% !"+,%*.%()**% !"+,%-%()**% sweeps !"#$%(*%()**% !"#$%&%()**%
  13. 13. iPod nanos anewpaired invasive-native
  14. 14. sweeps, pitfall, & pans
  15. 15. uninvadedsweeps, pitfall, & pans
  16. 16. indicator species analysissweeps, pitfall, & pans
  17. 17. &!!" 9 !"#$#"%#&()"*+"#$#,)-#"$+#.$/01/.)"10+&/..) %$" 8/*"1%5#"/.) 2&0(..13/,) $!" !"/,*#".) 4-&15#"/.) #$"sweeps, 6/"715#"/.)pitfall, & !" pans ; &!!" !"#$#"%#&()"*+"#$#,)7:&,&0/) %$" 8/*"1%5#"/.) 2&0(..13/,) $!" !"/,*#".) 4-&15#"/.) #$" 6/"715#"/.) !" ()(*+,-," ./0"" 1-,)23" 4)56" 789-(9"/:"!"#$%&(#)(*+;)/("
  18. 18. 7 6 5 invasivevisitation rate /hr 4 3 native 2 1 0 pre post invasive flowering peak
  19. 19. 600 500 invasivemean visit time (sec) 400 300 200 100 native 0 pre post invasive flowering peak
  20. 20. 4 3 invasivetaxa richness 2 1 native 0 pre post invasive flowering peak
  21. 21. entire arthropod communities shift – not just herbivoresnow, need to decouple effect & response
  22. 22. however, given wide shift in all arthropod guilds,subsequent community less resistant
  23. 23. www.ecoblender.org + =www.youtube.com/user/metachristopher

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