Bio 201 F09 True lect 13 (L13) v3r

Bio 201 F09 True lect 13 (L13) v3r - Todaysfactoid 'Climate...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Today’s factoid 'Climate Change and Conservation' in Biology in the News on BB Biologists are considering and in some cases using new, radical strategies to try to conserve endangered species in the face of rapidly changing climate one strategy is known as ‘assisted migration’ or ‘managed relocation’ many such methods are controversial and were not considered in the past because of potential problems such as species outcompeting native species in new habitats many species have dealt with past climate change by moving, but current climate change appears to be too rapid for many species Bay Checkerspot butterFy; http://www.nytimes.com/2007/01/23/science/ 23migrate.html
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
upcoming guest lectures • Wed. Oct. 7 – Mike McCann – Lophotrochozoans (especially Mollusks) • Fri. Oct. 16 – Melissa Mark – Birds
Background image of page 2
Animals share these synapomorphies multicellularity mobility heterotrophy
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Diversity of animal life: from unicellular life ~ 1200 – 900 mya Most phyla show up in fossil record ~ 570 mya (“Cambrian Explosion”)
Background image of page 4
Cambrian - frst appearance oF animals with hard skeletons Continent of Laurentia Note: this was beFore Pangaea (~250 mya)
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The Burgess shale: the frst menagerie oF the Cambrian Early-mid Cambrian animals of the Burgess shale, Canada All are marine forms.
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 29

Bio 201 F09 True lect 13 (L13) v3r - Todaysfactoid 'Climate...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online