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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 197 (1963), S. 1224-1225 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Rana grisea van Kampen (1 specimen infested) and Hyla angularis Loveridge (5 specimens) are ground-dwellers which rarely travel far from water. Hyla becki Loveridge (3 specimens) and Hyla n.sp. Tyler1 (6 specimens) are normally found among low vegetation which they occasionally climb. Nyctimystes ...
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Bulletin of environmental contamination and toxicology 53 (1994), S. 25-31 
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Hydrobiologia 299 (1995), S. 53-73 
    ISSN: 1573-5117
    Keywords: wet-dry tropics ; pond fauna ; pond chemistry ; invertebrates ; amphibians
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The results of preliminary investigations of ephemeral waters of the wet-dry tropics are reported. These poorly known but extensive habitats cover much of the seasonally inundated land of northern Australia. Brief descriptions of the physicochemical characteristics of four contrasting sites are given along with a listing of the non-benthic fauna that utilize them. Ninety-six invertebrate taxa and eighteen species of vertebrates were recorded. Anuran amphibians were particularly abundant in these systems and their patterns of utilization of these temporary waters is described. Because of their seasonal abundance, tadpoles and young frogs are likely to be important prey for a suite of both invertebrate and vertebrate predators.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-0878
    Keywords: Smooth muscle ; Anura ; Stomach ; Electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The young of the aquatic Australian frog, Rheobatrachus silus (Leptodactylidae) develop from eggs to juvenile frogs in the mother's stomach. During brooding the stomach expands greatly and becomes very thin walled. Transmission electron microscopy showed that the distension of the stomach was accompanied by a severe disruption of the smooth muscle layers. Many of the smooth muscle cells seemed to be highly contracted and resembled smooth muscle cells contracted in the absence of an intact connective tissue matrix. Eight days after the birth of the juveniles through the mouth of the female, the stomach muscle cells had returned to a normal appearance. It is suggested that during gastric incubation of the young, smooth muscle cells become at least partially dissociated from their surrounding connective tissue matrix, allowing maximal distension of the stomach wall.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Peptide Science 2 (1996), S. 117-124 
    ISSN: 1075-2617
    Keywords: peptides ; neuropeptide ; antimicrobial agent ; skin secretion ; frogs ; Chemistry ; Biochemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The granular dorsal glands of the giant tree frog Litoria infrafrenata contain five peptides including caerulein (a known neuropeptide), and four new peptides named frenatins 1 (MH+ = 1140 Da), 2 (1423), 3 (2180) and 4 (2493). The amino acid sequences of the frenatins are detailed: their structures do not correspond to those of peptides isolated from other amphibians or animals. Frenatin 3, Gly-Leu-Met-Ser-Val-Leu-Gly-His-Ala-Val-Gly-Asn-Val-Leu-Gly- Gly-Leu-Phe-Lys-Pro-Lys-Ser-(OH), has wide spectrum antimicrobial properties.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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