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  1. Watson, P.J. and Vasquez, M. 1981. Comparative ecology of Woodsia scopulina sporophytes and gametophytes. American Fern Journal 71, 3-9. (Thanks to the amazing Dr. Herb Wagner for helping me perform my first published research.) get PDF

  2. Watson, P.J. 1986. Transmission of a female sex pheromone thwarted by males in the spider Linyphia litigiosa(Linyphiidae). Science 233, 219-221. get PDF ; also see this.

  3. Watson, P.J. 1988. The adaptive function of sequential polyandry in the spider Linyphia litigiosa(Linyphiidae). Ph.D. Thesis. Ithaca, New York: Cornell University.

  4. Watson, P.J. 1990. Female-enhanced male competition determines the first mate and principal sire in the spider Linyphia litigiosa (Linyphiidae). Behavioral Ecology and Sociobiology 26,77-90. get PDF

  5. Watson, P.J. 1991. Multiple paternity and first mate sperm precedence in the sierra dome spider, Linyphia litigiosa. Animal Behaviour 41, 135-148. get PDF

  6. Watson, P.J. 1991. Multiple paternity as genetic bet-hedging in female sierra dome spiders (Linyphia litigiosa: Linyphiidae). Animal Behaviour 41, 343-360. get PDF

  7. Watson, P.J. 1993. Foraging advantage of polyandry for female sierra dome spiders (Linyphia litigiosa: Linyphiidae) and assessment of alternative direct benefit hypotheses. American Naturalist 141, 440-465. get PDF

  8. Watson, P.J. and Thornhill, R. 1994. Fluctuating asymmetry and sexual selection. Trends in Ecology and Evolution 9, 21-25. get PDF 

  9. Watson, P.J. and Lighton, J.R.B. 1994. Sexual selection and the energetics of copulatory courtship in the sierra dome spider, Linyphia litigiosa. Animal Behaviour 48, 615-626. get PDF

  10. Watson, P.J. 1995. Dancing in the dome. Natural History 104(3), 40-43. link to full article or get quality PDF

  11. Watson, P.J. 1998. Nonrandom multi-male mating by females increases offspring growth rates in the spider Neriene litigiosa (Linyphiidae). Animal Behaviour 55, 387-403. get PDF 

  12. Watson, P.J., Arnqvist, G. and Stallman, R.R. 1998. Sexual conflict and the energetic costs of mating and mate choice in water striders. American Naturalist 151, 46-58. get PDF​

  13. Watson, P.J. and Andrews, P.W. 2002. Toward a revised evolutionary adaptationist analysis of depression: the social navigation hypothesis. Journal of Affective Disorders 72, 1-14. get PDF

  14. Radwan, J., Watson, P.J., Farslow, J., and Thornhill, R. 2003. Procrustean analysis of fluctuating asymmetry in the bulb mite, Rhizoglyphus robiniClaparede (Astigmata: Acaridae). Biological Journal of the Linnean Society 80, 499-505. get PDF

  15. deCarvalho, T.N., Watson, P.J., and Field, S. 2004. Costs increase as ritualized fighting progresses within and between phases in the sierra dome spider, Neriene litigiosa. Animal Behaviour 68, 473-482. get PDF​

  16. Cline-Brown, K., and Watson, P.J. 2005. Investigating major depressive disorder from an evolutionary adaptationist perspective: fitness hindrances and the social navigation hypothesis. In: Focus on Depression Research. Devito, J.T., editor. Nova Science Publishers, Inc. Hauppauge, NY.

  17. Hagen, E.H., Watson, P.J. and Hammerstein, P. 2008. Gestures of Despair and Hope: A View on Deliberate Self-harm From Economics and Evolutionary Biology. Biological Theory 3, 123-138. get PDF

  18. Keil P.L., and Watson, P.J. 2010. Assessment of self, opponent, and resource assessment during male-male contests in the sierra dome spider, Neriene litigiosa: Linyphiidae. Animal Behaviour 80, 809-820. get PDF See note on silly misrepresentation of sierra dome contests in Elwood and Arnott (2012) "Understanding how animals fight..." Anim. Behav. 84, 1095-1102.

  • Watson, P.J. The Informational Boundaries Hypothesis of Religiosity (IBH): An Expanded Honest Signaling Framework for Understanding Ingroup and Outgroup Religious Diversity as an Evolutionary Adaptation.

  • For additional results concerning decision-making processes during male-male fights in sierra dome spiders, see the doctoral dissertation of my graduate student Pamela L. Keil.

  • Watson, P.J., Submitted, under revision. Contingent behavioral incitation of male-male fighting by penultimate female sierra dome spiders. Animal Behaviour. See Carleton College press release.

  • Hagen, E., Watson, P.J., and Thomson, J.A. Submitted. Loves Labours Lost: Major depression as an evolutionary adaptation to obtain help from those with whom one is in conflict. Lancet.

  • deCarvalho, T.N., and Watson, P.J. Energetic consequences for soapberry bugs of feeding on preferred versus non-preferred chemically protected seeds. In Prep.

  • Watson, P.J. The energetic costs of copulatory courtship in the sierra dome spider and female choice for metabolic power. In Prep.

  • Watson, P.J. A genetic trade-off faced by females between sexually competitive and rapidly ageing sires in the sierra dome spider. In Prep.

  • Watson, P.J., Fagerlund, R., Willingham, M., Polinsky, K, Kang, J. and Kayser, A. Submitted, extended MS In Prep. Evidence of injurious male-male aggression and female chemical incitation in the lek mating system of a new species of fairy moth (Incurvariidae; Lepidoptera). view abstract

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