Sam Swenson Rasheda Vereen. Considerable uncertainty about the future Uncertainty about effects on...
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Transcript of Sam Swenson Rasheda Vereen. Considerable uncertainty about the future Uncertainty about effects on...
Sam Swenson Rasheda Vereen
Considerable uncertainty about the future
Uncertainty about effects on ecosystems
Climate Change Impacts (J.A. Harris): ◦ Increases in mean temperatures◦ Increases in precipitation◦ Unpredictable weather patterns
Sage bush, Cottonwood, Aspen: ◦ Grows in desert◦ Abundant along rivers and other wet areas
“Native species become less viable under future climate conditions” B. Bradley, Climate Change and plant invasions, p. 1511
Some native species already threatened by local vegetation
Highly efficient in water absorption Long life span (100+ years) Ability to tolerate extreme drought stress Established ecological community dependent on creosote for
shelter/protection Native plants considerably less prepared to tolerate drought
(Domino effect) Bees depend on nectar