Accession Number : AD0715799

Title :   Orientation Ability in the Green Sea Turtle.

Descriptive Note : Final rept. Oct 60-Oct 70,

Corporate Author : SENSORY SYSTEMS LAB TUCSON ARIZ

Personal Author(s) : Baldwin,Howard A.

Report Date : DEC 1970

Pagination or Media Count : 37

Abstract : The objective of Modification 9 of this contract was to investigate the ability of the green sea turtle (Chelonia mydas) to (a) maintain heading orientation after being displaced at sea, and (b) to investigate whether seismic vibrations along the nesting beach were of significance as a means of recognizing the nesting locality. A telemetry technique for recording and reconstructing the oceanic movement path for marine turtles was developed and employed. These initial experiments are too few in number to substantiate or negate the various orientation hypotheses, but they do suggest that the green turtle is sensitive to the earth's magnetic field in water beyond the 100 fathom line. (Author)

Descriptors :   (*REPTILES, SPACE PERCEPTION), (*AQUATIC ANIMALS, SPACE PERCEPTION), GEOMAGNETISM, SENSITIVITY, ANIMALS, BEHAVIOR

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE