J. Bogaert [9]Jan Bogaert [2]
  1.  32
    The Fractal Dimension as a Measure of the Quality of Habitats.A. R. Imre & J. Bogaert - 2004 - Acta Biotheoretica 52 (1):41-56.
    Habitat fragmentation produces isolated patches characterized by increased edge effects from an originally continuous habitat. The shapes of these patches often show a high degree of irregularity: their shapes deviate significantly from regular geometrical shapes such as rectangular and elliptical ones. In fractal theory, the geometry of patches created by a common landscape transformation process should be statistically similar, i.e. their fractal dimensions and their form factors should be equal. In this paper, we analyze 49 woodlot fragments (Pinus sylvestris L.) (...)
    Direct download (2 more)  
    Export citation  
    Bookmark   2 citations  
  2.  23
    Towards a Quantification of Ecological Theory: The Importance of Multivariate Analysis and of an Accurate Diversity Measurement.J. Bogaert, R. Ceulemans, I. Impens & I. Nijs - 2002 - Acta Biotheoretica 50 (1):57-61.
  3.  33
    Mcgarigal, K., S. Cusham and S. Stafford (2000). Multivariate Statistics for Wildlife and Ecology Research.Jan Bogaert - 2001 - Acta Biotheoretica 49 (2):141-143.
  4.  25
    Sanderson, J. And L.D. Harris (Editors) (2000). Landscape Ecology — a Top-Down Approach.J. Bogaert - 2002 - Acta Biotheoretica 50 (2):129-131.
  5.  18
    Book Review: Denny, M. And S. Gaines (2000). Chance in Biology - Using Probability to Explore Nature. [REVIEW]J. Bogaert - 2003 - Acta Biotheoretica 51 (1):55-57.
  6.  19
    Land-Cover Change: Quantification Metrics for Perforation Using 2-D Gap Features.J. Bogaert, D. Salvador-Van Eysenrode, P. Van Hecke, I. Impens & R. Ceulemans - 2001 - Acta Biotheoretica 49 (3):161-169.
    Perforation or gap formation in a vegetation is a major process in landscape transformation. The occurrence of gaps profoundly alters the microclimatical conditions in a vegetation. A method is proposed to quantify perforation by using the three main 2-D characteristics of the gaps: area, number and boundary length. New measures are developed by normalizing the observed values to the reference status of minimum and maximum perforation. As minimum perforation status, the presence of one single gap with area equal to the (...)
    Direct download  
    Export citation  
  7.  26
    Size Dependence of Interior-to-Edge Ratios: Size Predominates Shape.J. Bogaert - 2001 - Acta Biotheoretica 49 (2):121-123.
    Direct download  
    Export citation  
    Bookmark   1 citation  
  8.  23
    A Reference Value for the Interior-to-Edge Ratio of Isolated Habitats.J. Bogaert, P. Van Hecke & I. Impens - 1999 - Acta Biotheoretica 47 (1):67-77.
    Isolated habitats, the consequence of the fragmentation process, are the object of external disturbance. This divides the patch area into two zones: interior and edge. The interior-to-edge ratio quantifies the potential disturbance impact. A method is presented to calculate a reference value for the interior-to-edge ratio, based upon the minimum edge for a given interior. The method is based on pixel geometry features and mathematical morphology. A corrected interior-to-edge ratio is defined using the reference value. The method is illustrated for (...)
    Direct download  
    Export citation  
    Bookmark   1 citation