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Weinkauf, Manuel F G; Moller, Tobias F; Koch, Mirjam C; Kucera, Michal (2014): Regression of Globorotalia scitula of sediment core M51/3_567_SL104. PANGAEA,, In supplement to: Weinkauf, MFG et al. (2014): Disruptive selection and bet-hedging in planktonic Foraminifera: shell morphology as predictor of extinctions. Frontiers in Ecology and Evolution, 2,

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Latitude: 34.814830 * Longitude: 27.282660
Date/Time Start: 2011-11-21T00:00:00 * Date/Time End: 2011-11-21T00:00:00
Minimum DEPTH, sediment/rock: 4.468 m * Maximum DEPTH, sediment/rock: 4.552 m
M51/3_567_SL104 (567) * Latitude: 34.814830 * Longitude: 27.282660 * Date/Time: 2011-11-21T00:00:00 * Elevation: -2155.0 m * Recovery: 4.8 m * Campaign: M51/3 * Basis: Meteor (1986) * Method/Device: Gravity corer (Kiel type) (SL)
The table provides parameters (dip, intercept, and adjusted R2) of a linear regression of the coordinates of suture points in shells of G. scitula in relation to the shell centre of spiralization. For this, the xy-coordinates were transformed into polar coordinates with the parameters theta (angle between suture point and spiralization centre) and t (distance between suture point and spiralization centre), normalized for a unity maximum diameter of t=1 per specimen. This coordinate notation allowed to describe a spiral (i.e. periodic function) more efficiently. The coordinates could then be logarithmically plotted as theta over t, and subjected to a linear regression to determine the dip (theta/t) and intercept (theta) as well as the adjusted R2 of the resulting line of regression.
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Sample code/labelSample labelWeinkauf, Manuel F G
2DEPTH, sediment/rockDepthmGeocode
3AGEAgeka BPGeocode
4Regression dipRegression diptheta/tWeinkauf, Manuel F G
5Regression interceptRegression intthetaWeinkauf, Manuel F G
6Coefficient of determinationR**2Weinkauf, Manuel F GAdjusted R2
2568 data points

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