22 Result(s)

Article

First report of the Sub-Saharan Africa 2 species of the Bemisia tabaci complex in the Southern France

An extensive survey was conducted in the major crop producing regions of France, Spain, Greece, Tunisia and Morocco from 2003 to 2010, to determine the geographical distribution of the Bemisia tabaci Gennadius (H...

Margarita Hadjistylli, George K. Roderick, Nathalie Gauthier in Phytoparasitica (2015)

Article

Geology and climate drive diversification

Data from the Galapagos Islands exemplify how geology and climate can interact to cause episodes of isolation and fusion of the biota across a landscape. Different scales of such cycles dictate varying mechani...

Rosemary G. Gillespie, George K. Roderick in Nature (2014)

Article

Post-colonization temporal genetic variation of an introduced fly, Rhagoletis completa

Evolutionary biologists have been puzzled by the success of introduced species: despite founder effects that reduce genetic variability, invasive species are still successful at colonizing new environments. It...

Yolanda H. Chen, Stewart H. Berlocher, Susan B. Opp, George K. Roderick in Genetica (2010)

Chapter

Tools and Recent Progress in Studying Gene Flow and Population Genetics of the Bemisia tabaci Sibling Species Group

The use of molecular markers in the Bemisia tabaci complex has been a definitive step in identifying the enormous genetic diversity hidden behind the morphological likeness among its members (see Gill and Brown, ...

Margarita Hadjistylli, Judith K. Brown… in Bemisia: Bionomics and Management of a Glo… (2010)

Article

Successful spread of a biocontrol agent reveals a biosecurity failure: elucidating long distance invasion pathways for Gonatocerus ashmeadi in French Polynesia

Invasive species are generally detected in new ecosystems long after their first arrival, making it difficult to elucidate pathways leading to successful invasion. In this study, the dispersal of a classical b...

Jérôme N. Petit, Mark S. Hoddle, Julie Grandgirard, George K. Roderick… in BioControl (2009)

Article

Tracing the invasion history of mealy plum aphid, Hyalopterus pruni (Hemiptera: Aphididae), in North America: a population genetics approach

Biological invasions are typically the outcome of complex patterns of introduction, establishment, and spread, and genetic methods are excellent tools to resolve such histories for non-native organisms. The me...

Jeffrey D. Lozier, George K. Roderick, Nicholas J. Mills in Biological Invasions (2009)

Article

Invasion dynamics of the glassy-winged sharpshooter Homalodisca vitripennis (Germar) (Hemiptera: Cicadellidae) in French Polynesia

The glassy-winged sharpshooter, Homalodisca vitripennis (Germar) [formerly Homalodisca coagulata (Say)] (Hemiptera: Cicadellidae), has recently emerged as a serious invasive pest. From its natural range in the so...

Jérôme N. Petit, Mark S. Hoddle, Julie Grandgirard… in Biological Invasions (2008)

Article

Engineering an invasion: classical biological control of the glassy-winged sharpshooter, Homalodisca vitripennis, by the egg parasitoid Gonatocerus ashmeadi in Tahiti and Moorea, French Polynesia

The glassy-winged sharpshooter, Homalodisca vitripennis Germar (=H. coagulata Say) (Hemiptera: Cicadellidae), invaded Tahiti in 1999 and spread rapidly to the main island groups of French Polynesia becoming an im...

Julie Grandgirard, Mark S. Hoddle, Jerome N. Petit… in Biological Invasions (2008)

Article

Are bottlenecks associated with colonization? Genetic diversity and diapause variation of native and introduced Rhagoletis completa populations

The success of invasive species appears to be a paradox: despite experiencing strong population bottlenecks, invasive species are able to successfully establish in new environments. We studied how the walnut h...

Yolanda H. Chen, Susan B. Opp, Stewart H. Berlocher, George K. Roderick in Oecologia (2006)

Article

Genes in new environments: genetics and evolution in biological control

Article

Isolation and Characterization of Nine Microsatellite Loci from the Hawaiian Grouper Epinephelus Quernus (Serranidae) for Population Genetic Analyses

The availability of variable genetic markers for groupers (Serranidae) has generally been limited to mitochondrial DNA. For studies of population genetic structure, more loci are usually required; particularly...

Malia Ana J. Rivera, Glenn C. Graham, George K. Roderick in Marine Biotechnology (2003)

Article

Invasion Genetics of New World Medflies: Testing Alternative Colonization Scenarios

The Mediterranean fruit fly (Ceratitis capitata) is an invasive agricultural pest with a wide host range and a nearly global distribution. Efforts to forgo the medfly's spread into the United States are dependent...

Andrew J. Bohonak, Neil Davies, Francis X. Villablanca… in Biological Invasions (2001)