X hits on this document

40 views

0 shares

0 downloads

0 comments

12 / 12

Island Biogeography

Applications of Equilibrium Theory of Island Biogeography

  • design of nature preserves - the SLOSS

debate (single large or several small): sum of species in series of small areas does not sum to list of one large area!

  • circular vs. ‘peninsular’

  • clumped vs. spread out

  • corridors vs. unconnected

Island Biogeography

Applications of Equilibrium Theory of Island Biogeography

  • 54 prairie patches undergoing ‘relaxation’ or species loss

since mid-1800s

  • resampled 50 years after the mid-1900’s

    • 1.

      size of patch determined rate of species loss

    • 2.

      number of species originally determined rate of species loss

    • 3.

      correlated species features to species loss

Science 1996

Island Biogeography

Applications of Equilibrium Theory of Island Biogeography

  • Oceanic islands

  • Sky islands (mountain tops)

  • Forest fragments

  • Prairie potholes

  • Prairie remnants

Science 1996

Island Biogeography

Applications of Equilibrium Theory of Island Biogeography

Platanthera leucophaea - prairie finged orchid

  • loss of herbs with small seeds, N2 fixers,

and sphingid moth-pollinated

Document info
Document views40
Page views48
Page last viewedThu Dec 08 20:16:59 UTC 2016
Pages12
Paragraphs376
Words1504

Comments