The individual is the target of natural selection but The population is the target of evolution

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The individual is the target of natural
selectionbutThe population is the target of
evolution
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Populations
In time
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and space
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Distribution of organisms in populations and
populations in space

• Random
• Regular ( overdispersed)
• Clumped ( underdispersed)

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On the wings of checkerspots. . .
How we know what we know about metapopulations
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Serpentine outcrops havens for native species
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Plantago
Owls clover
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Population of male checkerspots and precipitation
at Jasper Ridge
Variance in rainfall during growing season
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Link to report by Ehrlich et al. that
checkerspot extinction at Jasper Ridge due in
part to global climate change
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Palos Verdes Blue
The worlds rarest butterfly?
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Clausen, Keck, and Hiesey (ca. 1954)
Flamboyant fathers of the common garden a way to
study phenotypic vs. genotypic differences
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Potentilla glandulosa (sticky cinquefoil)
Stanford (30 m)
Mather (1400 m)
Timberline (3050 m)
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Chuckwalla (Sauromalus obesus) Photo by Evan
Baker
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Chuckwalla size in common garden