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Learning ObjectVan Buskirk, CherylThe animated song and screencast videos are intended to be used together to give students an introduction to the processes that lead to speciation. It is intended for non-biology majors (eg. CSUN BIOL100) but may serve as a fun review for majors as we . . .
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ArticleGray, David A.Reproductive behavior influences gene flow within and among species; thus, sexual selection may be a major contributor to the maintenance of species, and possibly their formation. Here I experimentally manipulate the courtship interactions of the fiel . . . -
ArticleIzzo, Amanda S.Abstract Previous work with the cryptic sister species pair of field crickets, Gryllus texensis Cade & Otte and Gryllus rubens Scudder, has implicated sexual selection in the speciation process. That study examined reproductive character displacement . . .
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ThesisGutierrez, NicholasMating signals play an important role in both mate selection and species recognition. Acoustic mating signals have been shaped under various evolutionary constraints with remarkable malleability in response to variable conditions. These same traits ha . . .
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ArticleWilson, Paul S.Speciation involves the formation of reproductive isolating mechanisms such as a difference in pollinators, incompatibility between pollen tubes and stylar tissue, hybrid seed abortion, or poor growth of hybrid seedlings. We studied reproductive isola . . .
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ArticleGutierrez, Nicholas J.Studies that simultaneously estimate levels of species divergence in genetics, reproductive and ecological traits, and pre- and postzygotic isolation are relatively rare. Here we compare levels of divergence in three allopatric sister species of field . . .
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ArticleMurray, Anne-MarieFighting is often composed of discrete agonistic displays. Few studies have partitioned fighting behavior into its component agonistic displays and evaluated the relationships between the frequency of the displays and the potential benefits of fightin . . .
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Graduate projectFeliciano, KendallMicromelo undatus (Bruguière, 1792), represents the only species in the genus Micromelo (Family Aplustridae). This species of "bubble snail" is generally found in warm, tropical and subtropical waters across the globe. Recent work on other globally di . . .
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ArticleFreeman, John L.Selenium (Se) hyperaccumulator plants can concentrate the toxic element Se up to 1% of shoot (DW) which is known to protect hyperaccumulator plants from generalist herbivores. There is evidence for Se-resistant insect herbivores capable of feeding upo . . .
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ArticleHaldorson, Lewis