Publications

character displacement for sexual isolation between drosophila mojavensis and drosophila arizonensis.		1977	28563708
selection for sexual isolation between geographic forms of drosophila mojavensis. i. interactions between the selected forms.	drosophila mojavensis comprises three geographic forms occurring in the united states, the baja california peninsula, and mainland mexico. peninsular and mainland forms were selected for increased sexual isolation from each other, while controls were maintained with maximum outbreeding. response to selection was highly asymmetrical in that isolation was very high between selected peninsular males and mainland females, but nonexistent between selected mainland males and peninsular females. the he ...	1987	28563762
sexual isolation among populations of drosophila mojavensis.		1991	28563820
courtship behavior and control of reproductive isolation in drosophila mojavensis.		1989	28564202
premating isolation is determined by larval substrates in cactophilic drosophila mojavensis.		1992	28567750
genetics of host-cactus response and life-history evolution among ancestral and derived populations of cactophilic drosophila mojavensis.	the extent of host-specific genetic variation for two life-history traits, egg to adult developmental time and viability, and one morphological trait closely tied to fitness, adult thorax size, was exposed by employing a nested half-sib/full-sib breeding design with baja and mainland populations of drosophila mojavensis recently extracted from nature. this study was motivated by the presence of substantial variation in life histories among populations of d. mojavensis that use the fermenting tis ...	1993	28567893
sexual isolation among populations of drosophila mojavensis: response to pressure from a related species.		1980	28568688
courtship behavior and control of reproductive isolation between drosophila mojavensis and drosophila arizonensis.		1981	28581052
male hybrid sterility in drosophila: interactions between autosomes and sex chromosomes in crosses of d. mojavensis and d. arizonensis.	by backcrossing hybrids from the cross drosophila mojavensis female × drosophila arizonensis male to both parental species we show that several interspecific combinations of autosomes with one or the other sex chromosome (x or y) result in sperm abnormalities. two of these incompatibilities will cause the same type of nonreciprocal f1 male sterility that is observed in this pair of species, but the possibility of an additional incompatibility that would have the same result, e.g., an incompatibi ...	1988	28581068
population differences in host plant preference and the importance of yeast and plant substrate to volatile composition.	divergent selection between environments can result in changes to the behavior of an organism. in many insects, volatile compounds are a primary means by which host plants are recognized and shifts in plant availability can result in changes to host preference. both the plant substrate and microorganisms can influence this behavior, and host plant choice can have an impact on the performance of the organism. in drosophila mojavensis, four geographically isolated populations each use different ca ...	2017	28616178
evolution of gstd1 in cactophilic drosophila.	gstd1 is an insect glutathione s-transferase that has received considerable attention because of its role in detoxification of xenobiotic compounds, specifically pesticides and plant allelochemicals involved in detoxification, or in the use of some substrates as a nutritional source. gstd1 has been implicated in the adaptation to a new cactus host in drosophila mojavensis and thus constitutes an interesting candidate to study ecological genetics of adaptation in drosophila. we conducted populati ...	2017	28660301
lipidomic profiles of drosophila melanogaster and cactophilic fly species: models of human metabolic diseases.	the metabolic syndrome (mets) is associated with serious diseases and represents an important threat for global public health. the common fruit fly (drosophila melanogaster) has served as a model organism to study physiological processes of the mets, because central metabolic pathways are conserved among species, and because the flies are easy to cultivate in a laboratory. in nature, d. melanogaster is a fruit generalist, feeding on diets rich in simple carbohydrates. other drosophilids, however ...	2017	29043354