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
  • Intraspecific competition  (1)
  • Rectum, abnormalities  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Width of the presacral space in nigerian adults (1986)
    Springer
    Abdominal imaging 11 (1986), S. 370-371 
    Details
    ISSN: 1432-0509
    Keywords: Presacral space, radiography ; Rectum, abnormalities
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The width of the presacral space and the thickness of the rectal valve were measured on lateral radiographs obtained during barium enema examinations performed on 182 Nigerian adult patients over a 5-year period (1980–1984). The mean width of the presacral space was 0.78 cm, the value in men being significantly higher than in women (p〈0.01). Although these values are similar to those reported among Caucasians, a wider range of normal values was obtained in this study. There is also no significant difference between the mean value of the rectal valve thickness of 4.3 mm obtained in this study and that obtained from previous studies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02035113
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Density- and size-dependent spacing of ant nests: evidence for intraspecific competition (1988)
    Springer
    Oecologia 77 (1988), S. 522-525 
    Details
    ISSN: 1432-1939
    Keywords: Formica altipetens ; Intraspecific competition ; Nearest-neighbor analysis ; Nest size and density
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We present three lines of evidence which each suggest that intraspecific competition has significantly influenced the spacing patterns of Formica altipetens colonies. First, nearest-neighbor analysis of nest spacing patterns detected significant uniformity in six of eight plots. Second, there was a signifcant increase in the distance separating nearest neighbors as ant nest diameters increased. Third, ant nest density predicted substantial variation in the colony dispersion index, indicating the existence of a dispersion continuum at our study site.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00377268
    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...