Introducing
Prezi AI.
Your new presentation assistant.
Refine, enhance, and tailor your content, source relevant images, and edit visuals quicker than ever before.
Trending searches
Loading…
Poikilothermic Invertebrates
9
Transcript
Defreezing of Wood Frog
- :34 seconds
Flight of the Monarch
Poikilothermic Invertebrates
And Vertebrates
References
By: Daniel Perris
- M F Holick, X Q Tian, and M Allen, (1995). Evolutionary importance for the membrane enhancement of the production of vitamin D3 in the skin of poikilothermic animals, 92
- SCOTT, R. W.; ACHTEMEIER, G. L, (1987). Estimating Pathways of Migrating Insects Carried in Atmospheric Winds, 16
- Robert E. Cone, John J. Marchalonis, (1992). Cellular and Humoral Aspects of the Influence of Environmental Temperature on the Immune Response of Poikilothermic Vertebrates, 108
- Sergio Polakofa, Thomas P. Mommsenc, José L. Soengasd, (2011). Glucosensing and glucose homeostasis: From fish to mammals, 160
How do they overcome this problem?
Freeze-Tolerance Maneuvers
Waiters
- Bask in the sun
Ice-Neutralizing Techniques
Migration
- Hibernation.
- Anti-freezing Enzymes and Proteins.
- Glucokinase; inhibits production.
- ATP.
- Glucose.
- Sulfonylurea.
- Wood Frog; Rana sylvatica
- Elastic walls
- Use of Glucose
- Muscular heating
- Use of warm surfaces
- Other techniques
- Burying
- Eating "spicy" insects (Robert and John, 1992)
- Large groupings
- Moving to warmer climates
- Travels in groups.
- Muscular heating.
- Moving from one place to another.
- Monarch Butterfly; Danaus plexippus
- Cryoprotectants; the use of glycerol molecules (Holick, Tian & Allen, 1995).
- Intracellular Freezing; lipid, protein and carbohydrate metabolism (Holick, Tian & Allen, 1995).
- Ice Nucleators; produce ice nucleating proteins; Octapeptide (Holick, Tian & Allen, 1995).
Vertebrates!
Goldenrod Gall Fly; Eurosta solidaginis
Invertebrates!
Who is Poikilothermic?
- Invertebrates (Porifera, Cnidaria, etc.)
- Arachnids
- Fish
- Amphibians (frogs, toads, newts)
- Reptiles (snakes, lizards, crocodiles)
- Crustaceans
What is a Poikilotherm?
- "Ectothermic"
- A cold-blooded animal.
- An unstable internal body temperature
- Generally only 1° or 2° higher or lower (Holick, Tian & Allen, 1995).
- Muscular work or the absorption of solar heat.
- Become torpid (inactive) or perish if optimal limit is reached.
What? & Who?
Choose a template
Presentations from around the world
Learn more about creating dynamic, engaging presentations with Prezi