BIOL 1902 Lecture Notes - Lecture 8: Gray Tree Frog, Chorus Frog, Goldenrod

• School: Carleton University
• Department: Biology
• Course: BIOL 1902
• Professor: Michael Runtz

Document Summary

Lecture 8: gall= s(cid:449)elli(cid:374)g a(cid:374)d a lot of the(cid:373) are (cid:272)aused (cid:271)(cid:455) i(cid:374)se(cid:272)ts a(cid:374)d there"s a to(cid:374) of i(cid:374)se(cid:272)ts i(cid:374)side. It"s a (cid:449)a(cid:455) to survive winter: goldenrod gall fly grab= able to survive subzero temperatures by doing two things, 1) glycerol cryoprotectant, 2) have proteins between the cells so ice will form there. Those sites are called ice nucleating sites: so they have freeze tolerance. This is called dormancy: eggs lay their eggs in late spring and they hatch in late september, some hatchling painted turtles sta(cid:455) i(cid:374) the grou(cid:374)d a(cid:374)d freeze (cid:271)ut do(cid:374)"t die! So hatchling painted turtles are freeze tolerant: freeze tolerant= golden rod gall fly, painted turtles (hatchlings) wood frogs, spring peepers and chorus frog, endotherms, are different because they can"t freeze the(cid:455) die. The(cid:455) go dor(cid:373)a(cid:374)t: ra(cid:272)(cid:272)oo(cid:374)s do(cid:374)"t go i(cid:374)to hi(cid:271)er(cid:374)atio(cid:374). I(cid:374) true hi(cid:271)er(cid:374)atio(cid:374) heart rate a(cid:374)d (cid:271)od(cid:455) te(cid:373)perature is al(cid:373)ost at 0.