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  • Wiley-Blackwell  (62,949)
  • Blackwell Publishing Ltd  (24,931)
  • American Chemical Society (ACS)
  • 1975-1979  (51,668)
  • 1965-1969  (36,212)
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  • 1
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    Wiley-Blackwell
    In:  Oikos, 27 (3). pp. 367-376.
    Publication Date: 2017-03-31
    Description: Some of the basic assumptions implied in the theory of limiting similarity of coexisting competitors were investigated experimentally in the case of three congeneric, deposit feeding snails. The species show character displacement with respect to size when coexisting. In experimental containers with a natural substrate, interspecific, exploitative competition between snails of the same size range is as intense as intraspecific competition. Diatoms of a given size range, which constitute the most important food, show a "logistic" growth response to grazing, and individual growth of the snails is linearly related to diatom density. The previous observation that the snails show size dependent selection for ingested particle sizes is extended to show that this mechanism leads to a real resource partitioning between snails of different sizes. Size frequency distribution of diatoms in the sediment is a function of the sizes of grazing snails. Size selection of ingested sand grains may also be significant for resource partitioning since the migration rate of the attached microflora between sand grains seems to be slow relative to its growth on the individual sand grains.
    Type: Article , PeerReviewed
    Format: text
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  • 2
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    Wiley-Blackwell
    In:  Oikos, 33 (2). pp. 316-322.
    Publication Date: 2015-10-06
    Type: Article , PeerReviewed
    Format: text
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  • 3
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    Wiley-Blackwell
    In:  Journal of Fish Biology, 12 (4). pp. 311-323.
    Publication Date: 2017-07-11
    Description: In brackish water the variety of marine and freshwater parasite species is considerably reduced. The distribution in brackish water of most marine endoparasites is restricted by the salinity tolerance of their hosts, most of the parasite species are more tolerant than their hosts. The influence of salinity and temperature on nine species has been examined; first stage larvae of Contracaecum aduncum develop in 0-32‰ salinity; Cryptocotyle lingua proved to be infective at salinities down to 4‰. The greatest resistance was found in Anisakis larvae from herring Clupea harengus, which survived for more than half a year. Parasites in the fish intestines appear to be unaffected by changing water salinities, as the osmolarity in the intestines stays nearly constant. Marine ectoparasites (Acanthochondria depressa, Lepeophtheirus pectoralis) survive about three times longer than freshwater species (Piscicola geometra, Argulus foliaceus) when salinity is 16‰. High temperature increases the effects of adverse salinities on parasites. There is evidence that none of these ecto-parasitic species can develop within the range of 7-20‰ salinity.
    Type: Article , PeerReviewed
    Format: text
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  • 4
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    Wiley-Blackwell
    In:  Limnology and Oceanography, 23 (4). pp. 735-739.
    Publication Date: 2020-11-05
    Description: The effects of hydrostatic pressure and dissolved oxygen concentration on oxygen consumption rates were examined in the mesopelagic, vertically migrating squid Histioteuthis heteropsis from southern California offshore waters. Elevated hydrostatic pressure (to 136 atm) had no significant effects on oxygen consumption rates at 5°C. Lox oxygen concentrations (〈0.5 ml O2 liter -1) depressed rates of oxygen consumption. These findings suggest that biosis may be necessary to supply the total nergy needs of this species at daytime depths in the oxygen minumum layer off southern California.
    Type: Article , PeerReviewed
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 9 (1979), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: The development of the Analytical Photogrammetry Compiler (APC) is traced and a detailed description is given of the component parts of the AP/C-4.〈section xml:id="abs1-2"〉〈title type="main"〉RésuméOn retrace le developpement du restituteur analytique (APC) et on donne une description detaillée des composants du AP/C-4.〈section xml:id="abs1-3"〉〈title type="main"〉Zusammenfassung Skizzierung des Analytical Photogrammetry Compiler (APC) und detaillierte Beschreibung der Hauptbaugruppen der AP/C-4.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 9 (1979), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: The fifth biennial symposium of the Photogrammetric Society was held at the University of Birmingham on 6th to 8th April. It has been decided to perpetuate the memory of E. H. Thompson by giving his name to the series of symposia which originated at Birmingham in 1971 Eight papers were delivered to the 1979 symposium. They covered a wide variety of topics which included, in addition to a review of Thompson's own contribution to analytical photogrammetry, a modern approach to the handling of parallax measurements; aspects of digitising; low cost automatic contouring; high energy roentgen photogrammetry; applications in anatomy; the photogrammetric operator's point of view; and cadastral surveys. The majority of the papers are published in this issue of The Photogrammetric Record.〈section xml:id="abs1-2"〉〈title type="main"〉RésuméLe cinquième symposium biennal de la Société de Photogrammétrie s'est dérouléà l'université de Birmingham du 6 au 8 Avril. On décida de perpétuer le souvenir de E. H. Thompson en donnant son nom à la série de symposiums inaugurée à Birmingham en 1971 Huit communications ont été présentées au symposium de 1979. Elles concernaient une grande diversité de sujets qui comprenaient, en plus d'une revue de la contribution de Thompson à la photogrammétrie analytique, une methode moderne de mesure de parallaxe; des aspects de la transformation digitale; une visée automatique à bas prix; la photogrammétrie Roentgen à grande energie; des applications en anatomie; le point de vue de l'opérateur en photogrammétrie; et des cadastres. La majorité des communications sont publicées dans ce numéro de The Photogrammetric Record.〈section xml:id="abs1-3"〉〈title type="main"〉Zusammenfassung Das 5. im Abstand von zwei Jahren von der Photogrammetric Society veranstaltete Symposium fand vom 6. bis 8. April an der Universität Birmingham statt. Es wurde beschlossen, in ehrendem Gedenken Prof. Thompsons seinen Namen dieser Serie von Symposien, die 1971 in Birmingham begonnen hat, zu geben.Auf dem Symposium 1979 wurden 8 Vorträge gehalten. Sie beinhalten ein breites Themenspektrum, darunter ergänzend zu einem äberblick über den Beitrag Thompsons zur analytischen Photogrammetrie, eine moderne Lösung zur Verarbeitung von Parallaxenmessungen, Aspekte der Digital-isierung, eine kostengünstige automatische Höhenlinienentwicklung, Röntgen-photogrammetrie, Anwendungen in der Anatomie, der Standpunkt des photogrammetrischen Auswerters und Katastermessungen. Die Mehrzahl der Beiträge wird in dieser Ausgabe des Photogrammetric Record veröffentlicht.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 9 (1979), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: As part of his comprehensive analysis of cadastral surveys within the British Commonwealth (Dale, 1976), the author considered the contribution of aerial photography and photogrammetric surveys to this aspect of land administration. In this paper, he examines that contribution and underlines the limitations of photogrammetry as a cadastral survey method.〈section xml:id="abs1-2"〉〈title type="main"〉Résumé L'auteur extrait de l'étude exhaustive qu'il a faite du levé cadastral dans le Commonwealth (Dale, 1976) tout ce qui a rapport à la photogrammétrie: contribution et limitations.〈section xml:id="abs1-3"〉〈title type="main"〉ZusammenfassungIn seiner umfassenden Analyse von Katastermessungen (Dale, 1976) betrachtete der Autor den Beitrag der Aerophotogrammetrie und photo-grammetrischer Messungen für die Landeinrichtung. In der vorliegenden Arbeit werden diese Ausführungen überpruft und in diesem Zusammenhang die Grenzen der Photogrammetrie herausgearbeitet.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 9 (1979), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: A simple method is described for calibrating cameras at object distances of less than 0·5 m.〈section xml:id="abs1-2"〉〈title type="main"〉RésuméOn décrit une méthode simple pour calibrer les appareils de photographie pour des objets à des distances de moins de 0·5 m.〈section xml:id="abs1-3"〉〈title type="main"〉ZusammenfassungBeschreibung eines einfachen Verfahrens zur Kammerkalibrierung für Aufnahmeentfernungen von weniger als 0·5 m.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 9 (1979), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Book Reviewed in this article:CHARTERED LAND SURVEYOR/CHARTERED MINERALS SURVEYOR, Volume 1, Number 1, Spring 1979. Edited by M. Hanson.STUDENT MAP PACK. Dissected highland area: Maesteg, South Wales (Educational Map Series No. 10A). Industrial area: Washington New Town (Educational Map Series No. 11A).PHOTOGRAPHIC TECHNIQUES IN SCIENTIFIC RESEARCH, Volume 3. Edited by A. A. Newman.THE CAMERA AT WAR. By J. Lewinski.RECOGNITION OF TREE SPECIES ON AERIAL PHOTOGRAPHS. By L. Sayn-Wittgenstein.
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 9 (1979), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Type of Medium: Electronic Resource
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