Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
Filter
  • 2000-2004  (1)
  • 1955-1959  (1)
Source
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Introduction of a Grapsoid Crab, Brachynotus sexdentatus (Risso), into British Waters (1957)
    [s.l.] : Nature Publishing Group
    Nature 180 (1957), S. 616-617 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Queen's Dock is artificially warmed by sea water which passes through a nearby electrical power station, and the crab lives together with Carcinus maenas Leach among stones which are encrusted with such organisms as Balanus amphitrite Darwin, Hydroides norvegica (Gunnerus) and Mercierella ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/180616a0
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Ontogenetic differences in the circadian locomotor activity rhythm of the talitrid amphipod crustacean Orchestoidea tuberculata (2000)
    Springer
    Marine biology 137 (2000), S. 511-517 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Adult talitrid amphipods often display a nocturnal activity pattern, which has been shown in a number of cases to be partly controlled by an endogenous rhythm of circadian period. Juvenile talitrids have been little studied in the past, but evidence from field studies indicates that they may display a different diel pattern of locomotor activity from that of adults. This study presents evidence from the field in south–central Chile that juvenile Orchestoidea tuberculata Nicolet show crepuscular activity peaks, contrasting with the nocturnal peaks shown by adult conspecifics. Under constant conditions in the laboratory, both juveniles and adults exhibit endogenous rhythms of circadian periodicity. However, the phasing of activity differs in juveniles and adults, corresponding to the differences observed in the field. It is suggested that differing phasing of peak locomotor activity may be a mechanism to reduce contact between juvenile and adult talitrids. Experimental evidence indicates a significant negative influence on survival of juveniles in the presence of adult conspecifics by intraspecific predation. Other factors influencing the timing of surface activity are also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002270000358
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...