Search Results - "Heed, W. B."

Host-Plant Specificity in the Cactophilic Drosophila mulleri Species Complex by Ruiz, Alfredo, Heed, William B.

“…(1) Jaenike's model of optimal oviposition behaviour in phytophagous insects was tested in a guild of four closely-related cactophilic Drosophila species,…”
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Evolution of the mojavensis cluster of cactophilic Drosophila with descriptions of two new species by Ruiz, A, Heed, W B, Wasserman, M

“…The mojavensis cluster of the repleta species group of Drosophila (Drosophilidae: Diptera) consists of three species. One is newly described as D. navojoa. A…”
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Hierarchical structure in the Drosophila mojavensis cluster (Diptera: Drosophilidae) by Oliveira, D C S G, Wintermute, E H, Etges, W J, Heed, W B, O'Grady, P M, Desalle, R

“…Sequences from three gene regions from the nuclear and mitochondrial genomes were used to examine the extent and nature of hierarchical structure in the…”
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Ultrastructural examination of the insemination reaction in Drosophila by ALONSO-PIMENTEL, H, TOLBERT, L. P, HEED, W. B

“…The insemination reaction is a swelling of the female vagina caused by the male ejaculate. This postmating phenomenon is common among species in the genus…”
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Remating effects on the genetic structure of female life histories in populations of Drosophila mojavensis by Etges, W.J, Heed, W.B

“…A quantitative genetic analysis of nine adult fitness components was performed in two populations of cactophilic Drosophila mojavensis under natural conditions…”
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Sensitivity to larval density in populations of Drosophila mojavensis: influences of host plant variation on components of fitness by Etges, W.J, Heed, W.B

“…Chromosomally polymorphic populations of Drosophila mojavensis from Baja California feed and breed on agria cactus, Stenocereus gummosus; whereas, monomorphic…”
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Phylogenetic Analysis of the repleta Species Group of the Genus Drosophila Using Multiple Sources of Characters by Durando, Celeste M., Baker, Richard H., Etges, William J., Heed, William B., Wasserman, Marvin, DeSalle, Rob

“…The species in the repleta group of the genus Drosophila have been placed into five subgroups—the mulleri, hydei, mercatorum, repleta, and fasciola subgroups…”
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Extension of Longevity in Drosophila mojavensis by Environmental Ethanol: Differences between Subraces by Starmer, William T., Heed, William B., Rockwood-Sluss, E. S.

“…Drosophila mojavensis adults, which breed and feed on necrotic cacti, show an increase in longevity when exposed to atmospheric ethanol. The increase in…”
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Dispersal of Desert-Adapted Drosophila: The Saguaro-Breeding D. nigrospiracula by Johnston, J. Spencer, Heed, W. B.

“…Dispersal of Drosophila nigrospiracula on naturally occurring necrotic saguaro cacti occurs at rates up to three times higher than those observed for any other…”
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Unique Sterol in the Ecology and Nutrition of Drosophila pachea by Heed, William B., Kircher, Henry W.

“…Drosophila pachea, which breeds only in the stems of senita cactus (Lophocereus schottii) throughout the Sonoran Desert, requires the cactus as a dietary…”
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Reproductive Isolation in Sonoran Desert Drosophila by Markow, Therese A., Fogleman, James C., Heed, William B.

“…The literature contains numerous examples of sexual isolation between different populations of the same species. Certain species, such as D. immigrans and D…”
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Dispersal of Drosophila: the effect of baiting on the behavior and distribution of natural populations by Johnston, J.S, Heed, W.B

“…Estimated dispersal rate of baited Drosophila nigrospiracula was 4.8 m per day, which is consistent with previous dispersal estimates of baited Drosophila. The…”
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Genetic divergence within the Drosophila mayaguana subcluster, a closely related triad of Caribbean species in the repleta species group by O'Grady, P M, Durando, C M, Heed, W B, Wasserman, M, Etges, W, Desalle, R

“…The mayaguana triad of the Drosophila repleta species group includes D. mayaguana, D. straubae, and D. parisiena, the latter two of which are very similar when…”
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Studies of Oogenesis in Natural Populations of Drosophilidae. I. Relation of Ovarian Development and Ecological Habitats of the Hawaiian Species by Kambysellis, M. P., Heed, W. B.

“…The fecundity potential of Drosophila populations endemic to Hawaii has been investigated by analyzing the ovarian development of species in their natural…”
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Courtship sounds and behaviour of the two saguaro-breeding Drosophila and their relatives by Alonso-Pimentel, Henar, Spangler, Hayward G., Heed, William B.

“…The two saguaro-breeding Drosophila, D. nigrospiracula and D. mettleri, share striking morphological similarities even though they are not closely related…”
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ALLOZYME GENOTYPE-ENVIRONMENT RELATIONSHIPS. I. VARIATION IN NATURAL POPULATIONS OF DROSOPHILA PACHEA by Rockwood-Sluss, E. S, Johnston, J. S, Heed, W. B

“…Remarkable geographic and seasonal uniformities in gene and genotype frequencies were found for four enzyme loci. Principal component analysis revealed two…”
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The Correlation of Climate and Host Plant Morphology with a Geographic Gradient of an Inversion Polymorphism in Drosophila pachea by Ward, B. L., Starmer, W. T., Russell, J. S., Heed, W. B.

“…A latitudinal gradient in frequency of a single inversion in chromosome 7 of Drosophila pachea is described. Correlations were made with long-term monthly…”
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Niche separation in a pair of homosequential Drosophila species from the island of Hawaii by Kaneshiro, K.Y, Carson, H.L, Clayton, F.E, Heed, W.B

“…Two exceedingly closely related species of Drosophila coexist in a sparsely vegetated xeric area on the island of Hawaii. Of the two major trees in the area,…”
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A mitochondrial DNA analysis of vicariant speciation in two lineages in the Drosophila mulleri subgroup by Beckenbach, A T, Heed, W B, Etges, W J

“…Hypothesis: Biogeography and patterns of host cactus use in two ancestral-derived species pairs of cactophilic Drosophila suggest that recent divergence and…”
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Four decades of inversion polymorphism in Drosophila pseudoobscura by Anderson, W.W. (University of Georgia, Athens, GA), Arnold, J, Baldwin, D.G, Beckenbach, A.T, Brown, C.J, Bryant, S.H, Coyne, J.A, Harshman, L.G, Heed, W.B, Jeffery, D.E

“…We report data that continue the studies of Dobzhansky and others on the frequencies of third-chromosome inversions in natural populations of Drosophila…”
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