1 / 39

Society for Conservation Biology

Society for Conservation Biology. Auburn University Chapter. Guest Speaker: Dr. David Steen “ Road mortality and freshwater turtle conservation in North America ”. WHERE? 112 Rouse Life Sciences. WHEN? TUESDAY Mar. 3 6:00-7:00 PM. Check us out on Facebook.

albinam
Download Presentation

Society for Conservation Biology

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Society for Conservation Biology Auburn University Chapter • Guest Speaker: Dr. David Steen • “Road mortality and freshwater turtle conservation in North America” WHERE? 112 Rouse Life Sciences WHEN? TUESDAY Mar. 3 6:00-7:00 PM Check us out on Facebook Also: Info on Tigers 4 Tigers plans for spring semester!

  2. Biotic Pollination • Plant-animal interactions, often mutualisms Mystery slide…..

  3. Outcrossing • Favor outcrossing?

  4. Outcrossing • Favor outcrossing: • 4) Self-incompatibility: stop

  5. Pollination syndromes • Pollination Syndrome: flower & pollinator • Disclaimer: We make broad generalizations and exceptions exist to most statements!

  6. Pollination syndromes • Bee pollination • Bees: • intelligent, agile • Good sight (incl. European honeybee Halictid bee Leafcutter bee Bumble bee

  7. Pollination syndromes • Flowers: • Colorful (not red) • Landing platform: • Mildly fragrant • Often nectar guides: Orchid flower with nectar guides (lines) on petals Petals in visible light (top) and UV (bottom)

  8. Pollination syndromes • Fremontodendron decumbens (endangered chaparral shrub) flowers • UV reflectance photo (right) Tony Danza??

  9. Pollination syndromes • Beetle pollination • Beetles: • Clumsy, dumb • Poor vision,

  10. Pollination syndromes • Bird pollination: • Flower-visiting birds: • Agile, long beak • visual: see red • poor “smell”

  11. Pollination syndromes ??? • Flowers: • red/orange • Nectar (m Aloe

  12. Pollination syndromes • Butterfly pollination • Butterflies: good vision/smell, long tongue • Don’t hover well coiled tongue tongue extended

  13. Pollination syndromes • Flowers: • Color varies (blue, yellow, orange) Phlox pilosa

  14. Pollination syndromes • Bat pollination • Nocturnal: sight good (

  15. Pollination syndromes • Flowers • Open night: light color • Lots • May be pendant (). Parkia flowers

  16. Pollination syndromes • Bat pollination: Mainly tropical • In U.S., saguaro Saguaro cactus Saguaro flowers

  17. Pollination syndromes • Moth pollination • Moths: • Sight good (but

  18. Pollination syndromes • Flowers: • Open night • Sweet Night blooming jasmine

  19. Pollination syndromes • Moth story: nectar spur • Nectar spur: long pouch (nectar @ bottom) Nectar spurs on columbine

  20. Pollination syndromes • Moth story: nectar spur • Nectar spur: long pouch (nectar @ bottom) • Selection for

  21. Pollination syndromes • Angraecum orchid (Madagascar) Nectar spur almost 1 ft. long!

  22. Pollination syndromes Asimina triloba • Flesh fly pollination • Fly: Good smell • Flowers Stapelia flower

  23. Tony Danza? 2014 Fly flower: Rafflesia • Ex, Rafflesia • Root parasite • Largest flower Some tourist guy….

  24. Pollination syndromes spadix and spathe • Largest inflorescence • Corpse-flower (titan arum) Inside view

  25. Sexual Mimics • Fls. look/smell like female bee/wasp • Study: Sexual mimic orchids Male “mating” with flower!

  26. Pollination syndromes • Grass pink orchid (Calopogon): • Fake stamens (on labellum) • No reward Most orchids…… Calopogon orchid (fl. upside down!)

  27. Biotic Pollination • Mutualism: (+,+) interaction • Do animal cheaters prosper?? Floral robbers! Cool robbers…

  28. Biotic Pollination • Floral Larceny: Visitor • Ex, snapdragon: (nectar robbing) • Is robbing bad??

  29. Biotic Pollination • Neg. or pos.! • Pos.: “legitimate”

  30. Biotic Pollination • Cheaters prosper?? Animal cheaters. • Yucca moth story • Yucca filamentosa

  31. Biotic Pollination • Pollination: yucca moth • Behavior: female

  32. Biotic Pollination • Mutualism: plant pollinated, moth young eat seeds

  33. Biotic Pollination • Abort frs. w/ few seeds!

  34. Biotic Pollination Interesting plant-animal interactions, often mutualisms Fish affect pollination? Mystery slide…..

  35. Biotic Pollination • Fish affect pollination? • Peelbark St. John’s wort (Hypericum fasciculatum) • Pond margins

  36. Biotic Pollination • Trophic cascade: Effects

  37. Ch. 7: Plant Growth and Reproduction(Seed Dispersal)

  38. “Thinking” like a plant…. • Coast redwood • 2,000 yrs.: to • Safe site: location suitable

  39. Why disperse? • 1) Escape competition (parent/siblings) • Seed shadow: pattern Usually “acorn doesn’t fall far from tree” Bristlecone pine: lives up to 5000 years!

More Related