Download - Discovery Day Tarnita
Transcript
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TERMITE MOUNDS CAN PREVENT DESERTIFICATION
Corina E. Tarnita
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Desertification due to: overgrazing; climate change
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Sudden switch to desert; hard to recover
Decreasing rainfall
Increasing rainfall
Rainfall (mm day-1)
Veg
etat
ion
bio
mas
s (g
m-2)
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Termite mounds are islands of fertile vegetation
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In Laikipia: black cotton soil termites
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Termites:
Improve nutrients on mounds
Allow water to infiltrate better
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Decreasing rainfall
Increasing rainfall
Ve
ge
tati
on
bio
mas
s (
g m
-2)
Rainfall (mm day-1)
No mounds
With mounds
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Thank you!