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Chris Anderson |
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B.S. Biology
Denison University 2002
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3205
Life Science Building |
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(310)
206-6599 |
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mailto:cna1980@ucla.edu
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Dissertation Research |
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The
frequency that character displacement
patterns result as a consequence of interference competition, where
species
compete through direct interactions with each other, has rarely been
examined. We have
termed this process
agonistic character displacement.
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My dissertation research
has used the mating territories of
species in the damselfly genus Hetaerina as a model system to investigate agonistic
character displacement.
We have documented agonistic character displacement in the response of H.
americana
males and H.
occisa males to the presence of the extremely variable
secondary sexual
traits of H. titia.
Sympatric
populations have a reduced response to territorial intrusions by H.
titia
and H. titia models compared to conspecific
controls, whereas allopatric
populations respond equally to conspecific and heterospecific intruders.
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Recent
Publications and Presentations |
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Cordoba-Aguilar, A; Lesher-Trevino, AC; Anderson,
CN. 2007. Sexual selection in Hetaerina titia males: a possible key
species to understand the evolution of pigmentation in calopterygid
damselflies (Odonata : Zygoptera). Behavior, 144,931-952. |
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Schultz, TD; Anderson, CN; Symes, LB. 2008. The
conspicuousness of colour cues in male pond damselflies depends on
ambient light and visual system. Animal Behaviour, 76, 1357-1364.
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