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Speciation,
evolutionary biology, sexual selection theory, Hawaiian Drosophilids
The Hawaiian Drosophilidae has often been referred to as one of
the most outstanding examples of explosive adaptive radiation and
there is little reason to deny such claims. However, results from
mate preference experiments suggest that adaptive shifts into novel
environments may not be the primary mechanism by which speciation
occur in this group. Rather, it is suggested that shifts within
the sexual environment play a dominant role in the initial steps
of species formation. Thus, I have focused my research on understanding
the dynamics of sexual selection and the role it plays in the speciation
process.
I have also begun to investigate the biology of small populations
and the role of sexual selection in populations faced with extinction.
Shifts in the distribution of mating types in the population during
small population size can have a significant impact on the genetic
background of the population. Also, "leakage" of genetic
material from a related sympatric species may be permitted during
small population conditions to replenish some of the genetic variability
that may have been lost as a result of genetic drift. The results
of this research will increase our understanding of the biology
of rare and endangered species and provide information that may
help in mitigating the extinction of some of these species.
Representative
publications
Kaneshiro, K.Y. 2004. Sex, flies, and the genetic consequences of
small population size. In D. Elmo Hardy Memorial Volume: Contributions
to the Systematics and Evolution of Diptera, N. Evenhuis and K.Y.
Kaneshiro Eds. Bishop Museum Bulletin in Entomology. 12: 43-51.
Kaneshiro, K.Y.,
P. Chinn, K.N. Duin, A.P. Hood, K. Maly, and B. Wilcox. 2005. Hawaii's
mountain-to-sea ecosystems: Social-ecological microcosms for sustainability
science and practice. EcoHealth 2:1-12.
Kaneshiro, K.Y.
2006. Dynamics of sexual selection in the Hawaiian Drosophilidae:
A paradigm for evolutionary change. Proc. Hawaiian Entomol. Soc.
(Invited Review) 38:1-19.
Edwards KA, Doescher
LT, Kaneshiro KY, Yamamoto D 2007 A database of wing diversity in
the Hawaiian Drosophila. PLoS ONE 2(5): e487. doi:10.1371/journal.pone.0000487
Handler, A.T.,
D.S. Gruner, W.P. Haines, M.W. Lange, and K.Y. Kaneshiro. 2007.
Arthropod surveys on Palmyra Atoll, Line Islands, and insights into
the decline of the native tree Pisonia grandis (Nyctaginaceae).
Pacific Science 61(4): 485-502.
Kido, M., C. Mundt,
K. Montgomery, A. Asquith, D. Goodale, and K.Y. Kaneshiro. 2008.
Integration of wireless sensor networks into cyberinfrastructure
for monitoring Hawaiian "mountain-to-sea" environmentsl.
Environmental Management 42(4):658-666.
Kaneshiro, K.Y.
and R. Lapointe. 2009. Sexual Selection. In R. Gillespie and D.
Clague (Eds.) Encyclopedia of Islands, University of California
Press pp.825-829.
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