[ "Center for Urban and Structural Entomology, Department of Entomology Texas A&M University, College Station, TX 77843-2143"]; [ "Department of Entomology, University of Arkansas, Fayetteville, AR 72701"]; [ "Department of Entomology, University of Florida-Ft. Lauderdale Research and Education Center 3205 College Avenue, Ft. Lauderdale, FL 33314"]; [ "Dow AgroSciences LLC, 9330 Zionsville Road, Indianapolis, IN 46268"]
Florida Entomologist (Impact Factor: 1.06). 09/2009; DOI: 10.1653/0015-4040(2006)89[183:GEFTIO]2.0.CO;2

ABSTRACT Las introducciones exóticas de la termita subterránea de Formosa (TSF) de Asia a los Estados Unidos han tenido consecuencias económicas significativas. Introducciones multiples por medio del transporte marino han sido propuestas, pero la identificación de estas rutas todavia no ha revelada mas que un linaje en los Estados Unidos continental. La secuenciación de un marcador de 640-bp del citocromo-c-oxidasa II de ADN mitochondrial (mtADN) a 60 poblaciones separadas, revelo dos linajes independientes atravesando los Estados Unidos continental, Hawaii, Japan y China. El marcador mostró una variación genética limitada. El grupo I constituye un clado principalmente asiático, mientras el grupo II consiste de poblaciones asiáticas y del sur de los Estados Unidos. Este es el primer estudio que documenta los dos linajes distintas en los Estados Unidos y Hawaii.

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    ABSTRACT: The Formosan subterranean termite, Coptotermes formosanus Shiraki (Isoptera: Rhinotermitidae), is primarily reported from subtropical and warm temperate regions, whereas Coptotermes gestroi (Wasmann) is reported from many areas of the tropics. Taiwan is one of a few areas where the distributions of the two species overlap. By analyzing partial mitochondrial sequences of COII, 12S rRNA, and 16S rRNA, we found that most Taiwanese C. formosanus populations were closely related to Japanese and some Chinese populations and that Taiwanese C. gestroi populations were most closely related to those from the Philippines and Hawaii rather than populations from Thailand, Malaysia, Singapore, and Indonesia. The intraspecific variation of C. formosanus was 0.7–0.8% for three genes among seven Taiwanese populations, whereas all Taiwanese C. gestroi populations had identical sequences. The results support that Taiwan may be a center of origin for C. formosanus, but a recent introduction site for C. gestroi.
    Annals of the Entomological Society of America 06/2009; · 1.17 Impact Factor
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    ABSTRACT: The number of recognized invasive termite species has increased from 17 in 1969 to 28 today. Fourteen species have been added to the list in the past 44 years; 10 have larger distributions and 4 have no reported change in distribution, and 3 species are no longer considered invasive. Although most research has focused on invasive termites in urban areas, molecular identification methods have answered questions about certain species and found that at least six species have invaded natural forest habitats. All invasive species share three characteristics that together increase the probability of creating viable propagules: they eat wood, nest in food, and easily generate secondary reproductives. These characteristics are most common in two families, the Kalotermitidae and Rhinotermitidae (which make up 21 species on the invasive termite list), particularly in three genera Cryptotermes, Heterotermes, and Coptotermes (which together make up 16 species). Although it is the largest termite family, the Termitidae (comprise 70% of all termite species) have only two invasive species, because relatively few species have these characteristics. Islands have double the number of invasive species than continents, with islands in the South Pacific the most invaded geographical region. Most invasive species originate from Southeast Asia. The standard control methods normally used against native pest termites are also employed against invasive termites; only two eradication attempts, in South Africa and New Zealand, appear to have been successful, both against Coptotermes species. Expected final online publication date for the Annual Review of Entomology Volume 58 is December 03, 2013. Please see for revised estimates.
    Annual Review of Entomology 09/2012; · 13.02 Impact Factor
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    ABSTRACT: Understanding the population structure of species that disperse primarily by human transport is essential to predicting and controlling human-mediated spread of invasive species. The German cockroach (Blattella germanica) is a widespread urban invader that can actively disperse within buildings but is spread solely by human-mediated dispersal over longer distances; however, its population structure is poorly understood. Using microsatellite markers we investigated population structure at several spatial scales, from populations within single apartment buildings to populations from several cities across the U.S. and Eurasia. Both traditional measures of genetic differentiation and Bayesian clustering methods revealed increasing levels of genetic differentiation at greater geographic scales. Our results are consistent with active dispersal of cockroaches largely limited to movement within a building. Their low levels of genetic differentiation, yet limited active spread between buildings, suggests a greater likelihood of human-mediated dispersal at more local scales (within a city) than at larger spatial scales (within and between continents). About half the populations from across the U.S. clustered together with other U.S. populations, and isolation by distance was evident across the U.S. Levels of genetic differentiation among Eurasian cities were greater than those in the U.S. and greater than those between the U.S. and Eurasia, but no clear pattern of structure at the continent level was detected. MtDNA sequence variation was low and failed to reveal any geographical structure. The weak genetic structure detected here is likely due to a combination of historical admixture among populations and periodic population bottlenecks and founder events, but more extensive studies are needed to determine whether signatures of global movement may be present in this species.
    PLoS ONE 07/2014; 9(7):e102321. · 3.53 Impact Factor

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