Current and Past

Dr. Dave Graymex

I have been at CSUN since 2001.  Before that I was a postdoc for four years with Bill Cade in Canada.  I earned my PhD in 1997 from the University of New Mexico, working with Astrid Kodric-Brown, and my BA in 1992 from the University of California Santa Cruz.

Other than evolutionary biology, I like hiking, camping, surfing….

 

Current Masters Students

ahaberkernAndrea Haberkern Ecomorphology of spiders in the Ecuadorean Amazon

 

 

Former Masters Students

nickfield2_0Nicholas Gutierrez (MS 2016)  Proximate causes of variation in signaling among three sister species of Gryllus Crickets

 

 

 

field picLauren Conroy (MS 2014) Leg Armaments and Alternative Mating Behavior in Pristoceuthophilus Camel Crickets. Lauren is now in the UC Riverside PhD program working with Derek Roff.

 

 

molivaMark Oliva (MS 2014) Vocal Repertoire and Calling Behavior of an Ecuadorian Treefrog, Dendropsophus carnifex. Mark is now a biology lab coordinator and instructor at the Santa Monica City College.

 

 

jpaurJen Paur (MS 2010) The role of acoustic experience in host song preference of the phonotactic parasitoid fly, Ormia ochracea (Diptera: Tachnidae). Jen now has high Darwinian fitness and is living in Seattle working at an insectarium.

 

 

ksaguchiKelly Sakaguchi (MS 2010) Host specialization and song selection by the parasitoid fly, Ormia ochracea. Kelly now works for US Customs and Border Patrol.

 

 

lhaleyLisseth Haley (MS 2010) Mating behavior in the camel cricket Pristoceuthophilus marmoratus Lisseth is now a community college biology instructor.

 

 

nosbornNikki Osborne (MS 2009) Barriers to movement and gene flow in mid-sized carnivores in the eastern Santa Monica Mountains. Nikki is now a community college biology instructor.

 

 

eanicetoEnrique Aniceto (MS 2006) Claw allometry and the effect of body size on fighting and mating in the crayfish Procambarus clarkii. Enrique is now a lab technician at LA Valley College.

 

 

mizzoAmanda Izzo (MS 2005) Mating behavior as a potential reproductive isolating mechanism in the field crickets, Gryllus rubens and Gryllus texensis (Orthoptera: Gryllidae).  Mandy continued on to earn a PhD with Elizabeth Tibbets at the University of Michigan, and is now a science writer.

 

 

FitzpatrickMark Fitzpatrick (MS 2000, Brock University) Attractive silences in cricket courtship song: mate choice using a short-range signal.  Mark earned a PhD at the University of Toronto, and is now an Assistant Professor at the University of Toronto-Scarborough.

 

 

Undergraduate Students

Mary Beth Adams, Independent Study, CSU Northridge, 2005. Project: Calling song variation among populations of crickets from SE Arizona.
Lena Agdere, Independent Study, CSU Northridge, 2008. Project: Pristoceuthophilus camel crickets.
Gohar Arzumanyan, Independent Study, CSU Northridge, 2005. Project: Molecular population genetics of bobcats.
Christina Banuelos (Miramontez), Independent Study, CSU Northridge, 2003. Project: Molecular variation in parasitoid flies, Ormia ochracea.  Portions published in Animal Behaviour (see pubs).
Carolyn Berlin, Independent Study, CSU Northridge, 2016. Project: Potential for hybridization between Gryllus n.sp. ‘navajo’ and Gryllus n. sp. ‘saxatilis’.
Arturo Castellano, Independent Study, CSU Northridge, 2005. Project: Developmental temperature effects on male song and female song recognition in Gryllus n.sp. ‘yucca’ and Gryllus n.sp. ‘AZ-stutter-trill’.
Adil Colawabala, Independent Study, CSU Northridge, 2003. Project: mtDNA variation in Gryllus rubens and Gryllus texensis.
Brenda Conley, Independent Study, Brock University, 2000. Project: Morphological variation in Gryllus texensis and G. rubens.  Portions published in Florida Entomologist (see pubs).
Esteban Cota, Independent Study, CSU Northridge, 2008. Project: Systematics and phylogenetics of Gryllus field crickets the using 16s rRNA gene.
Kamran Dastouri, Independent Study, CSU Northridge, 2004 and 2005. Project: Developmental plasticity in cricket acoustic communication.
Gillian Eckhardt, B.Sc., Honours, Brock University, 2000. Thesis: Dietary effects on male condition and courtship song in Gryllus texensis.  Portions published in Animal Behaviour (see pubs).
Jeffrey Esparza, Independent Study, CSU Northridge, 2015. Project: Spider ecomorphology in Ecuadorian Amazon.
Mark J. Fitzpatrick, B.Sc., Honours, Brock University, 1998. Thesis: Mate choice and sexual selection in the field cricket Gryllus bimaculatus at the level of courtship.
Jeanette Flores, Independent Study, CSU Northridge, 2005. Project: Field sampling of bobcat scat for population genetic analysis.
Tina Furness, B.Sc., Honours, Brock University, 1999. Thesis: Is allochronic speciation important in the evolution of cricket life cycles?
Jacqueline Ghaemmaghami, Lab Assistant, CSU Northridge, 2002. Project: Rearing and hybrid cross preparation.
Hector Godoy, Independent Study, CSU Northridge, 2004. Project: Dietary lipids and thermal preferences in Gryllus assimilis from Florida.
Christopher Gonzales, Independent Study, CSU Northridge, 2013, 2014. Project: Gryllus field cricket genetics.
Christopher A. Gonzales, Independent Study, CSU Northridge, 2015, 2016. Project: Running performance of spiders.
Cristina Goldy, Independent Study, CSU Northridge, 2015. Project: Gryllus field cricket genetics.
Jamille Heer, Independent Study, Univ. of Lethbridge, 2001. Project: Female mate choice and courtship song comparisons of the house cricket Acheta domesticus.
Francine Hoffman, Independent Study, CSU Northridge, 2003. Project: Phonotaxis of parasitoid flies under laboratory conditions.
Jacob Holmes, Independent Study, CSU Northridge, 2015. Project: Running performance in spider guilds.
Scherezade Hormozi, Independent Study, CSU Northridge, 2015, 2016. Project: Courtship (and calling?) behavior in Gryllus ovisopis.
Keyara Kaiser, Independent Study, CSU Northridge, 2005. Project: Field sampling of bobcat scat for population genetic analysis.
Angel Klock, Independent Study, CSU Northridge, 2002. Project: Assessing the potential for hybridization between Gryllus texensis and G. lineaticeps.
Nomiki Kolettis, Independent Study, CSU Northridge, 2003. Project: Dietary lipids and thermal preferences in crickets.
Marisa Korody, Independent Study, CSU Northridge, 2002. Project: Courtship song variation in trilling field crickets.
Jerilyn Joel, Independent Study, CSU Northridge, 2006. Project: Systematics and phylogenetics of Gryllus field crickets the using 16s rRNA gene.
Andrew Laleian, Independent Study, CSU Northridge, 2016. Project: sperm precedence patterns in P. marmoratus.
Andrew Lam, Independent Study, CSU Northridge, 2008. Project: Field collection and laboratory rearing of Ormia ochracea.
Leanne Lapaz, Independent Study, CSU Northridge, 2003. Project: Cuticular hydrocarbon profiles of Gryllus rubens and Gryllus texensis.
Peter Lee, Independent Study, CSU Northridge, 2003 and 2004. Projects: (1) mtDNA variation in Gryllus rubens and Gryllus texensis. (2) Systematics and phylogenetics of Gryllus field crickets using the mtDNA gene cytochrome oxidase I.
Donna Manglona, Independent Study, CSU Northridge, 2003. Project: mtDNA variation in Gryllus rubens and Gryllus texensis.
Alan Marsh, Independent Study, Univ. of Lethbridge, 2001. Project: Female field cricket (Gryllus texensis) response to conspecific vs. heterospecific courtship song.
Shannon Martin, B.Sc., Honours, Brock University, 1999. Thesis: The effects of temperature on the calling song in the field cricket, Gryllus integer.  Portions published in Canadian Journal of Zoology (see pubs).
Estenia Mendoza-Haley, Independent Study, CSU Northridge, 2003. Project: Field and laboratory phonotaxis of the parasitoid fly Ormia ochracea.
Daniel Nelson, Independent Study, CSU Northridge, 2003 and 2004. Project: mtDNA variation and utility of microsatellites in crickets.
Seamus Ohara, Independent Study, CSU Northridge, 2008. Project: Field ecology of Ormia ochracea.
Nikki Osborn, CSU Northridge, 2002. Project: mtDNA variation in Gryllus rubens and Gryllus texensis.
Jenevieve Polin, Independent Study, CSU Northridge, 2005 Project: Molecular genetic variation among populations of SE Arizona field crickets.
Dakota Pollack, Independent Study, CSU Northridge, 2015, 2016. Project: Oviposition and substrate preferences in Pristoceuthophilus camel crickets; sperm precedence patterns in P. marmoratus.
Heidi A. Poltl, B.Sc., Honours, Brock University, 1998. Thesis: Female response to male courtship song in Gryllus bimaculatus.
Michelle Rausch, Independent Study, CSU Northridge, 2003. Project: Dissection of field caught crickets to determine parasitism status and host range of Ormia ochracea.
Kiley Rodriguez, Independent Study, CSU Northridge, 2006. Project: Systematics and phylogenetics of Gryllus field crickets the using 16s rRNA gene.
Jonelle Saidy, Independent Study, CSU Northridge, 2001. Project: Acoustic behavior of Hoplosphyrum crickets. Portions published in Bulletin of the Southern California Academy of Sciences (see pubs).
Karine Shagoyan, Independent Study, CSU Northridge, 2006. Project: Molecular population genetics of Ormia ochracea.
Graeme Shennan, B.Sc., Honours, Brock University, 1999. Thesis: Female influences on the primary sex ratio in the field cricket, Gryllus bimaculatus.
Mandeep Sidhu, Independent Study, CSU Northridge, 2002. Project: mtDNA variation in Gryllus rubens and Gryllus texensis.
Nancy Silva, Independent Study, CSU Northridge, 2008. Project: Field collection and laboratory rearing of Ormia ochracea.
Juliana Simon, Independent Study, CSU Northridge, 2009. Project: Cytochrome b variation in western USA Gryllus crickets.
Amandeep Singh, Independent Study, CSU Northridge, 2004 and 2005. Project: Systematics and phylogenetics of Gryllus field crickets using the mtDNA gene cytochrome oxidase I.
Jagdeep Singh, Independent Study, CSU Northridge, 2004 and 2005. Project: Systematics and phylogenetics of Gryllus field crickets using the mtDNA gene cytochrome oxidase I.
Kabir Singh, B.Sc., Honours, Brock University, 2000. Thesis: Heritability of components of the courtship song of Gryllus texensis.
Melony Walsh, Independent Study, CSU Northridge, 2004. Project: Scanning Electron Microscopy of putative scent glands in the camel cricket Pristoceuthophilus marmoratus.
Dawn Weinstein, Independent Study, CSU Northridge, 2001. Project: Intraspecific variation in cricket calling song.
Kuaybe Yucebilgili, Independent Study, CSU Northridge, 2008. Project: Systematics and phylogenetics of Gryllus field crickets the using 16s rRNA gene.
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