Publications

Magdalena Herdegen, Heather J. Alexander, Wieslaw Babik, Jesús Mavárez, Felix Breden, Jacek Radwan. 2013. Population structure of guppies in north-eastern Venezuela, the area of putative incipient speciation. (submitted)

Alexander, H.J., J. Taylor, S. Wu, and F. Breden. 2006. Parallel evolution and vicariance in the guppy (Poecilia reticulata) over multiple spatial and temporal scales. Evolution 60:2352-2369. (PDF)

Lindholm, A.K., F. Breden, H.J. Alexander, W-K. Chan, S.G. Thakurta, and R. Brooks. 2005. Invasion success and genetic diversity of introduced populations of guppies Poecilia reticulata in Australia. Molecular Ecology 14: 3671-3682 (PDF)

Alexander, H.J. and F. Breden. 2004. Divergent sexual selection leads to incipient speciation in the Cumaná guppy. Journal of Evolutionary Biology 17: 1238-1254. (PDF)

Brook (Alexander), H.J., T.A. Rawlings and R.W. Davies. 1994. Protogyny in the Intertidal Isopod, Gnorimosphaeroma oregonense. Biological Bulletin 187: 99-111 (PDF)

In Prep:
Alexander, H.J., Richarson, J., and B. Anholt. 2013. Multi-generational response to artificial selection for biased clutch sex ratios among genetically divergent Tigriopus californicus populations.

Alexander, H.J., Richarson, J., Edmands, S, Foley, F., and B. Anholt. 2013. Sex without sex chromosomes: polygenic sex determination confirmed by a QTL study of Tigriopus californicus.

Alexander, H.J. & B. Anholt. 2013. The effect of space, time, and temperature on sex phenotype variation within and among intertidal copepod (Tigriopus californicus) populations.

Richarson, J., Alexander, H.J., and B. Anholt. 2013. Response to selection, heritability and maternal effects of sex phenotype; an estimate of genetic contributions to sex phenotype variation in a Tigriopus californicus.

Presentations & Talks:

H.J. Alexander, J. Richardson & B. Anholt, 2012. Extraordinary sex ratios in Tigriopus californicus; a QTL analysis. Society for the Study of Evolution meetings. Ottawa, ON (Talk)

Richardson, J., Alexander, H.J. & B. Anholt, 2012. Heritability and response to selection of brood sex ratio in the marine copepod Tigriopus californicus. Society for the Study of Evolution meetings. Ottawa, ON (Poster)

H.J. Alexander & B. Anholt, 2010. Extraordinary sex ratios in Tigriopus californicus. Bamfield Marine Sciences Centre (seminar)

H.J. Alexander & B. Anholt, 2010. Extraordinary sex ratios in Tigriopus californicus. Fall Program Seminar Series, Bamfield Marine Sciences Centre.

H.J. Alexander & B. Anholt, 2010. Implications of sex ratio variation among marine copepod (Tigriopus californicus) populations. Society for the Study of Evolution meetings. Portland, OR. (Talk)

H.J. Alexander, 2006. The Cumaná guppy: multiple lineages or introgression? Society for the Study of Evolution meetings. Stony Brook, NY. (Talk)

H.J. Alexander, 2004. Evolutionary history of Poecilia reticulata. Society for the Study of Evolution meetings. Colorado State University, Fort Collins, CO. (Poster)

H.J. Alexander, 2003. Pre-mating isolation between morphologically diverged guppy populations. Society for the Study of Evolution meetings. California State University, Chico, CA (Talk)

H.J. Alexander, 2002. Population divergence and reproductive isolation between Poecilia reticulata (the guppy) and “Endler’s Livebearer”. Society for the Study of Evolution meetings. University of Illinois at Urbana-Champaign, IL.
American Society of Naturalists meetings, Banff, Alberta – July 2002 (Talk)

H.J. Alexander, and F. Breden, 2002. Population divergence and reproductive isolation between Poecilia reticulata (the guppy) and “Endler’s Livebearer”. Pacific Ecology and Evolution Retreat, Brackendale, BC. (Poster)

H.J. Alexander. 1999. Pre-existing bias; a model for sexual selection? Simon Fraser University (Talk)

H.J. Brook and R.W. Davies. 1993. Implications of Sex Change for the Population Ecology of Gnorimosphaeroma luteum. American Zoologist 33(5): 299 (Abstract). American Society of Zoologists Annual Meeting, Los Angeles, CA. - December 1993 (Talk)

H.J. Brook, T.A. Rawlings and R.W. Davies. Protogyny in the Intertidal Isopod Gnorimosphaeroma oregonense and G. luteum. Pacific Ecology Conference, Bamfield Marine Station, Bamfield, B.C. - March 1993 (Talk)

H.J. Brook (Alexander), T.A. Rawlings and R.W. Davies. Protogyny in the Intertidal Isopod Gnorimosphaeroma oregonense. Western Society of Naturalists, Newport, OR. - January 1993. (received honourable mention for Best Student Paper Award) American Society of Zoologists, Vancouver, B.C. - December 1992 (Talk)

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