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Can I read Meteorological Determinants of Spider Ballooning: the Roles of Thermals vs. the Vertical Windspeed Gradient in Becoming Airborne on EtoBox?
Meteorological Determinants of Spider Ballooning: the Roles of Thermals vs. the Vertical Windspeed Gradient in Becoming Airborne by M. H. Greenstone is a Environmental Science article available to read on EtoBox.
What is Meteorological Determinants of Spider Ballooning: the Roles of Thermals vs. the Vertical Windspeed Gradient in Becoming Airborne about?
Spiders disperse by ballooning, a form of aeronautic behavior which they initiate by launching themselves into thermals. An attempt was made to define meteorological variables related to production and maintenance of thermals and use them as predictors of the number of aeronauts. Ballooning spiders were collected throughout a full growing season at an agricultural site and a native tall grass prairie 25 km distant, and numbers of ballooners were regressed against variables derived from meteorological data taken at locations near each site. The variables were the proportions of cloud cover and of possible sunshine, differences between maximum and minimum daily temperature (DT), wind speed, and a modification of the aeronautic index of Vugts and van Wingerden (1976). Ballooner numbers and meteorological variables used in the regressions were all weekly means. Significant one-step models were derived for both sites, but the addition of a second variable did not significantly increase the proportion of variation explained in either model. The modified aeronautic index explained 23% of the variation in ballooner numbers at the prairie site, while the proportion of possible sunshine expl
Who reads Meteorological Determinants of Spider Ballooning: the Roles of Thermals vs. the Vertical Windspeed Gradient in Becoming Airborne?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- M. H. Greenstone
- Publisher
- Springer-Verlag; Springer Verlag; Springer Science and Business Media LLC (ISSN 0029-8549)
- Published
- 1990
- Language
- EN
- Field
- Environmental Science (Physical Sciences)