ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-150
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 76 S. : Ill., graph. Darst., Kt.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 150
    Language: English
    Note: Zugl.: Kiel, Univ., Habil., 1993 u.d.T.: Energy requirements of the pygoscelid penguins
    Location: AWI Reading room
    Branch Library: AWI Library
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of ornithology 138 (1997), S. 325-330 
    ISSN: 1439-0361
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Während noch vor wenigen Jahrzehnten Millionen Humboldtpinguine die Küsten Perus und Chiles bevölkerten, wird die Art heute als gefährdet eingestuft. Die Fischerei stellt die größte Bedrohung für diese Tierart dar, deren Gesamtbestand sich nach letzten Schätzungen nur noch auf 10 000 Individuen beläuft. Wir setzten im Südherbst 1996 fünf Argos-Satellitensender ein, um festzustellen, ob Humboldtpinguine des Naturschutzgebietes „Pan de Azúcar“ (26°09′S) im Winter ortstreu bleiben oder saisonale Wanderungen durchführen. Während sich vier der Vögel im Untersuchungszeitraum (18–74 Tage) nicht weiter als 87 km von ihrer Brutinsel entfernten, wanderte ein Vogel im Juni 1996 nach Norden bis vor die Stadt Iquique (20° 12′S, 640 km vom Ausgangspunkt entfernt). Obwohl die in einer früheren Studie ermittelte Größe eines marinen Schutzgebietes von 35 km Durchmesser rund um die Brutinsel in den Sommermonaten ausreichend sein mag, belegen die neuen Ergebnisse, daß weitere Untersuchungen über das Wanderverhalten der Humboldtpinguine als Grundlage für einen effektiven Artenschutz unerläßlich sind.
    Notes: Abstract Until recently, the endangered Humboldt penguin was considered a sedentary bird, which remained near its breeding colonies throughout the year. In this pilot study we used five satellite transmitters on Humboldt penguins during the austral winter and were able to track one bird from Pan de Azúcar Island (26°09′S, 70°40′W), Northern Chile to Iquique (20°12′S, 70°07′W), a distance of 640 km, between May 24 and June 26, 1996. While a 35 km protection zone around breeding islands might be helpful to prevent competition of penguins with fisheries during the summer months, this might not improve the survival of migrating birds in the winter. Further studies are required to determine the extent of migration and to confirm the recorded travelling route and landing locations in order to detect possible threats to Humboldt penguins from fishing and other industries throughout the year.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 376 (1995), S. 301-302 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - Nimon et al1 found no differences in the heart rate of gentoo penguins (Pygoscelis papua), measured by using an artificial egg, in the absence and presence of one person. They concluded from this observation that our recorded increases in Adelie penguin (P adeliae) heart rate during human ...
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 1432-2056
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary In Antarctica, we investigated the energy consumption of Adélie (Pygoscelis adeliae), Gentoo (P. papua) and Chinstrap (P. antarctica) penguins while resting in the water (8.4 W-kg−1) and swimming underwater at various speeds, using a 21m long canal filled with sea-water at 4°C in conjunction with respirometry. The birds swam at will and consumed 15.7, 16.1 and 10 W·kg−1 at the speed where cost of transport was minimal (2.1, 2.3 and 2.5 m·s−1 in Adélie, Gentoo and Chinstrap penguins, respectively). Thermal conductance in pygoscelid penguins was 3.3 W·°C−1. m−2 and energy expenditure (Pi, W·kg−1) while resting in the water is given by Pj = -0.3 ta+9.6, where ta is water temperature in °C. During the breeding season, pygoscelid penguins spend 25–40% of their daily energy expenditure while foraging at sea. The importance of accurate estimates of at-sea activity and energy consumption is discussed.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    ISSN: 1432-2056
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The foraging ecology of rockhopper penguins was studied at Possession Island, southern Indian Ocean, by counting the number of birds departing from and arriving at colonies over the course of the day and by equipping three birds with time/depth loggers, one of which was recovered having recorded a total of 12 days foraging activity. Both the counts and the results from the diving behaviour showed that the birds foraged exclusively diurnally. Maximum dive depth was 66 m although most time was spent between 10 and 25 m, depths that did not accord with the published distribution of their principal prey as detected by nets and acoustics.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of ornithology 136 (1995), S. 471-472 
    ISSN: 1439-0361
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Pinguine haben eine Vielzahl von Feinden, sowohl im Wasser als auch an Land. Dies ist der erste Hinweis darauf, daß Vampirfledermäuse (Desmodus rotundus) sich vom Blut von Humboldtpinguinküken (Spheniscus humboldti) ernähren. Wegen der nächtlichen Blutverluste durch Vampirfledermäuse, und weil diese Blutsauger Krankheitserreger zwischen ihren Wirten übertragen können, könnte diese Form des Parasitismus einen wichtigen Mortalitätsfaktor darstellen.
    Notes: Abstract Penguins have a variety of ennemies both on on land and at sea. This is the first account of vampire bats (Desmodus rotundus) preying on juvenile Humboldt Penguins (Spheniscus humboldti). Because of the nightly drain of blood by vampires, and because vampires transmit diseases from one prey species to another, this form of predation may be an important mortality factor.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of comparative physiology 162 (1992), S. 567-573 
    ISSN: 1432-136X
    Keywords: Double-labelled water ; Water flux ; Antarctica ; Respirometry ; Penguin, Pygoscelis adeliae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Adélie penguins (Pygoscelis adeliae) carrying dummy instruments were used to determine field metabolic rates using double-labelled water. All penguins injected with double-labelled water showed a marked loss of body mass (-4.5%) during the period of the experiments (20–131 h), irrespective of the time of the breeding season. Total body water averaged 57.3% and water flux estimates of field metabolic rates correlated with double-labelled water estimates of field metabolic rate (r 2=0.68), indicating that Adélie penguins do not ingest significant amounts of sea water. Brooding Adélie penguins had a mean field metabolic rate of 10.1 W·kg-1 and at sea a field metabolic rate of 13.3 W·kg-1, both of which compare well with previously published estimates based on time/activity budgets and respirometry. Mean field metabolic rate in penguins with crèching chicks was 14.1 W·kg-1, and the birds spent 65 h absent from the nest as opposed to previous estimates of 7.1 W·kg-1 and 21 h. The effects of weather, disturbance and manipulation on the behaviour and field metabolic rate of penguins late in the breeding season are discussed. Adélie penguins (crèching chicks) equipped with externally attached instruments spent more time absent from the nest than noninstrumented controls (76 vs 54 h), but had a lower field metabolic rate.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Publication Date: 1997-04-01
    Print ISSN: 0722-4060
    Electronic ISSN: 1432-2056
    Topics: Biology
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Publication Date: 1998-04-01
    Description: A single chinstrap penguin (Pygoscelis antarctica), which had moulted at the South Shetland Islands, was subsequently tracked during 120 days at sea in the austral winter using a global location system (geolocation) based on light intensity. The bird moved east along the Scotia Ridge to a point approximately 300 km west of the South Sandwich Islands and approximately 1600 km away from the colony in which it had moulted. It spent more than 60% of its time in open water north of the edge of the pack ice.
    Print ISSN: 0032-2474
    Electronic ISSN: 1475-3057
    Topics: Ethnic Sciences , Geography
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Publication Date: 1993-06-01
    Print ISSN: 0012-9658
    Electronic ISSN: 1939-9170
    Topics: Biology
    Published by Wiley on behalf of Ecological Society of America.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...