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  • 1
    Electronic Resource
    Electronic Resource
    METHODS FOR MARKING INSECTS: Current Techniques and Future Prospects (2001)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Entomology 46 (2001), S. 511-543 
    Details
    ISSN: 0066-4170
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Notes: Abstract Tracking the movement of insects in their natural habitat is essential for understanding their basic biology, demography, and ethology. A wide variety of markers have been used to assess insect population dynamics, dispersal, territoriality, feeding behavior, trophic-level interactions, and other ecological interactions. The ideal marker should persist without inhibiting the insect's "normal" biology. Furthermore, the marker should be environmentally safe, cost-effective, and easy to use. In this article, we review the current state of knowledge regarding insect marking, document the advantages and limitations of each marking technique, and discuss advances made in marking insects over the past decade.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.ento.46.1.511
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Development of a monoclonal antibody to detect predation of the sweetpotato whitefly,Bemisia tabaci (1993)
    Springer
    Entomologia experimentalis et applicata 68 (1993), S. 231-236 
    Details
    ISSN: 1570-7458
    Keywords: Aleyrodidae ; predation ; biological control ; serology ; ELISA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We have developed an enzyme-linked immunosorbent assay (ELISA) for detection of whitefly antigen in the guts of predaceous arthropods based on a monoclonal antibody (MAb) produced in response toBemisia tabaci (Gennadius) (Homoptera: Aleyrodidae) egg antigen. We observed positive antigen-antibody reactions with the egg and the adult female stages of certain whitefly species and not with others. This MAb did not cross-react with any of the whitefly nymphs or adult males we tested. Moreover, this MAb did not cross-react with the various life stages of other insect species we examined. This immunologically-based technique to identify whitefly egg facilitates examinations of predator gut contents in the field. Such a specific and sensitive whitefly egg immunoassay will expedite the characterization of theB. tabaci predator complex in the southwestern United States.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02380775
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Determining the frequency of heteropteran predation on sweetpotato whitefly and pink bollworm using multiple ELISAs (1994)
    Springer
    Entomologia experimentalis et applicata 72 (1994), S. 59-66 
    Details
    ISSN: 1570-7458
    Keywords: insecta ; predation ; ELISA ; gut contents
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The gut contents of field-collected, predaceous Heteroptera were assayed for the presence of eggs of the sweetpotato whitefly,Bemisia tabaci Gennadius (Homoptera: Aleyrodidae) and the pink bollworm,Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae) using multiple enzyme-linked immunosorbent assays (ELISAs). Of seven species examined,Geocoris species andOrius tristicolor (Say) were the most frequent predators of sweetpotato whitefly with 32–39% of the individuals tested over the whole season scoring positive for whitefly antigens. With the exception ofLygus hesperus Knight, a major insect pest as well as a predator, the frequency of predation on pink bollworm eggs was much lower (0.7–14.3% positive over the season). Relatively few predators tested positive for both antigens (0.3–12.5%).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02382415
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    Paper (German National Licenses)
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