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  • 1
    Electronic Resource
    Electronic Resource
    Reexamination of the thermolytic rearrangement of 4-halophenyl azides to 2-aminophenols and other products (1993)
    Springer
    Monatshefte für Chemie 124 (1993), S. 367-379 
    Details
    ISSN: 1434-4475
    Keywords: Acetylated-2-amino-5-halophenols ; 2-Acetamido-5-haloanisoles ; 6-Halo-2-methylbenzoxazoles ; 6-Halobenzoxazolones ; 6-Halotriacetylaminophenols ; 1H-NMR spectra ; Fungicidal activity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es wurde die Halogenierung von 2-Aminophenol-Derivaten mit N-Chlor- und N-Bromsuccinimid bei Raumtemperatur in Essigsäure untersucht. Mit den zur Verfügung stehenden Verbindungen konnte eine Neuuntersuchung der thermolytischen Umlagerung von 4-Halogenphenylaziden zu 2-Aminophenolen und anderen Produkten unternommen werden. Diese Umlagerung findet sicherlich statt, allerdings differieren die dabei beobachteten Produkte signifikant von denen, die Suschitzky et al. 1963 und 1966 beschrieben.
    Notes: Summary The halogenation of derivatives of 2-aminophenol with N-chloro- and N-bromosuccinimides at ambient temperatures in acetic acid was studied. With the necessary compounds available, a reexamination of the thermolytic rearrangement of 2-halophenyl azides to 2-aminophenols and other products was undertaken. It is certain that the rearrangement of 4-halophenyl azides to 2-aminophenols occurs but the products identified in this study differ significantly from those reported previously by Suschitzky et al. (1963, 1966).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00814133
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  • 2
    Electronic Resource
    Electronic Resource
    The captive rearing of threatened Orthoptera: a comparison of the conservation potential and practical considerations of two species' breeding programmes at the Zoological Society of London (1998)
    Springer
    Journal of insect conservation 2 (1998), S. 201-210 
    Details
    ISSN: 1572-9753
    Keywords: conservation ; captive breeding ; reintroduction ; Gryllus campestris ; Decticus verrucivorus.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Nature of Science, Research, Systems of Higher Education, Museum Science
    Notes: Abstract The development of ex situ conservation work for Orthoptera is demonstrated by examples of two captive-breeding programmes at the Zoological Society of London. The field cricket Gryllus campestris and wart-biter bush cricket Decticus verrucivorus are both species that have been bred in captivity and reintroduced to field sites in attempts to strengthen dwindling wild populations. Despite a similar approach to both programmes, we have encountered significant differences in the practical applications of the captive management process for the two species. By reviewing these breeding programmes, we examine some of the practical considerations associated with ex situ orthopteran programmes and compare some of the different elements that can influence programme success.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009643729536
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  • 3
    Electronic Resource
    Electronic Resource
    The release of captive bred snails (Partula taeniata) into a semi-natural environment (1995)
    Springer
    Review of industrial organization 4 (1995), S. 645-663 
    Details
    ISSN: 1573-7160
    Keywords: captive breeding ; introduction ; Partula ; monitoring invertebrate conservation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Abstract A population of zoo bred Partula taeniata was released into a patch of native Polynesian plants in the Palm House at the Royal Botanic Gardens, Kew, London, UK. The released snails were from a colony established from wild-caught snails in 1982, which had been in captive conditions for up to six generations. Monitoring of the snails was continuous and intensive for the first 2 weeks, and at decreasing frequency over the next 15 months. There was high survivorship early on in the release, but once the intensive monitoring ended survivorship became hard to determine due to difficulties in locating snails in the large and complex habitat. However, snails are known to have persisted for at least 15 months, and new individuals have been noted maturing into all developmental stages. The snails exhibited patterns of feeding and microhabitat choice similar to those observed in the wild, despite being reared in a highly artificial environment. The methods and results provide some guidelines for future release trials for this highly endangered group of snails.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00222520
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