Geostatistical characterization of the spatial distribution of adult corn rootworm (Coleoptera: Chrysomelidae) emergence

Geostatistical methods were used to characterize spatial variability in western (Diabrotica virgifera virgifera LeConte) and northern (Diabrotica barberi Smith and Lawrence) corn rootworm adult emergence patterns. Semivariograms were calculated for adult emergence density of corn rootworm population...

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Bibliographic Details
Published in:Environmental entomology 1998-08, Vol.27 (4), p.910-917
Main Authors: Ellsbury, M.M. (Northern Grain Insects Laboratory, USDA-ARS, Brookings, SD.), Woodson, W.D, Clay, S.A, Malo, D, Schumacher, J, Clay, D.E, Carlson, C.G
Format: Article
Language:English
Subjects:
Biological and medical sciences
BIOLOGICAL DIFFERENCES
CARTOGRAFIA
CARTOGRAPHIE
CARTOGRAPHY
Chrysomelidae
DAKOTA DEL SUR
DAKOTA DU SUD
DIABROTICA BARBERI
DIABROTICA VIRGIFERA
DIABROTICA VIRGIFERA VIRGIFERA
DIFERENCIAS BIOLOGICAS
DIFFERENCE BIOLOGIQUE
DISTRIBUCION ESPACIAL
DISTRIBUTION SPATIALE
ECLOSION
Fundamental and applied biological sciences. Psychology
GEOSTATISTICS SEMIVARIOGRAMS
GLYCINE MAX
KRIGING
MAPPING
METHODE STATISTIQUE
METODOS ESTADISTICOS
MODELE
MODELOS
Phytopathology. Animal pests. Plant and forest protection
Protozoa. Invertebrates
Records, symptoms, damages, economic importance, population surveys
SOUTH DAKOTA
SPATIAL DISTRIBUTION
SPATIAL VARIATION
SPECIES DIFFERENCES
STATISTICAL METHODS
ZEA MAYS
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Summary:Geostatistical methods were used to characterize spatial variability in western (Diabrotica virgifera virgifera LeConte) and northern (Diabrotica barberi Smith and Lawrence) corn rootworm adult emergence patterns. Semivariograms were calculated for adult emergence density of corn rootworm populations in fields of continuous corn and rotated (corn/soybean) corn. Adult emergence densities were generally greater for northern corn rootworms than for western corn rootworms. The spatial structures of the adult rootworm emergence were aggregated as described by spherical spatial models for western corn rootworm and exponential models for northern corn rootworm. Range of spatial dependence varied from 180 to 550 m for western corn rootworm and 172 to 281 m for northern corn rootworm. Semivariogram models were used to produce contour density maps of adult populations in the fields, based on grid sampling of actual emerging adult populations
ISSN:0046-225X
1938-2936
DOI:10.1093/ee/27.4.910