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article/chapitre/communication
article/chapitre/communication
F. Houllier | 1987article/chapitre/communication
H. Thompson | 1956article/chapitre/communication
article/chapitre/communication
R. Assuncao | 1994In this paper, a test is derived for the hypothesis of complete spatial randomness. Consider events occurring as points in a planar region. A sample of n locations is selected and the two nearest events to each of the sample points are found. Th[...]article/chapitre/communication
E. Heuvelink | 1995The influence of the distance (transport resistance) between source and sink on dry matter distribution between fruits and vegetative parts in tomato was studied. In two glasshouse experiments, a control treatment (single-shoot plants, no truss [...]article/chapitre/communication
J. Perry | 1998SADIE (Spatial Analysis by Distance Indices) is a new methodology to detect and measure the degree of nonrandomness in the two-dimensional spatial patterns of populations. It applies the same principles to data in the form of maps as to data in [...]article/chapitre/communication
L. Winder ; J. Perry ; J. Holland | 1999The spatial and temporal distribution of the grain aphid Sitobion avenae F. (Homoptera: Aphididae) was studied within a field of winter wheat during the summer of 1996. Sampling was done using four nested grids comprising 133 locations. Analysis[...]article/chapitre/communication
R. Engeman ; R. Sugihara | 1998An extensive simulation study was conducted to optimize the number, r, of population members to be encountered from each random starting point in variable area transect (VAT) sampling. The quality of estimation provided by the original calculati[...]article/chapitre/communication
article/chapitre/communication
B. Pintureau | 1980article/chapitre/communication
ouvrage
article/chapitre/communication
article/chapitre/communication
J. Perry ; L. Winder ; J. Holland ; R. Alston | 1999A new index and four new graphical displays, termed ''red-blue'' plots, are presented to study and measure clustering in spatially referenced count data. The index can detect clusters in the form of patches, comprising several nearby large count[...]