GLORIA

GEOMAR Library Ocean Research Information Access

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
  • 1985-1989  (2)
  • 1950-1954
  • 1988  (2)
Document type
Keywords
Publisher
Years
  • 1985-1989  (2)
  • 1950-1954
Year
  • 1
    Electronic Resource
    Electronic Resource
    Protein and collagen content of rat skeletal muscle following space flight (1988)
    Springer
    Cell & tissue research 254 (1988), S. 251-253 
    Details
    ISSN: 1432-0878
    Keywords: Space flight ; Skeletal muscle ; Collagen ; Protein ; Rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Biochemical determinations of non-collagenous protein and hydroxyproline were made on rat skeletal muscles following 7 days of space flight aboard the NASA space shuttle mission SL-3. Relative to ground-based controls, the wet weight of each experimental muscle was significantly reduced. This was concomitant with a reduction in noncollagenous protein in the muscles. Protein concentration, however, was reduced only in slow-twitch muscles. The effect of space flight on the concentration and hydroxyproline content was different among the muscles. As a result, the loss of muscle mass in some muscles was the consequence of a reduction in both collagenous and non-collagenous proteins, while in others it was primarily the result of a non-collagenous protein loss.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00220042
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Processes organizing open-nesting bird assemblages: competition or nest predation? (1988)
    Springer
    Evolutionary ecology 2 (1988), S. 37-50 
    Details
    ISSN: 1573-8477
    Keywords: Nest predation ; open nesting birds ; assemblage organization ; apparent competition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The addition of nest predation as a major process to current theories of space utilization and coexistence of open-nesting bird species adds predictive power to hypotheses of resource partitioning and organization of species assemblages. Nest predation can influence the organization of assemblages if predators respond to nests in a density-dependent manner and if predators specialize on nest types. Evidence shows that nest predation is commonly density-dependent and that predators can specialize on nest types. Consequently, nest predation can select for coexistence of bird species that nest at different heights and in different microhabitats (i.e. partitioning of nesting space) to minimize density-dependent responses of predators to the accumulating densities of species within similar nest sites. I establish a series of predicted patterns (1) to test whether predation is operating to influence partitioning of space and coexistence of species, (2) to distinguish effects of nest predation from competition, and (3) to determine the mechanism by which nest predation acts to organize assemblages. Using published and unpublished data to test the predictions, nest predation is seen as a process that we can no longer afford to ignore.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02071587
    Location Call Number Limitation 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...