. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Q o9 Q. B FIGURE 4. Release (A) showing very little scatter of the vanishing bearings but a mean deviating appreciably from the home direction, contrasted with a release (B) with much more scattered bearings but a more homeward directed mean; A, Berry Hill Fire Tower, New York, miles from the loft, October 14, 1968, home bearing 258°, mean bearing 299° (nonrandom, P < ) ; B, near New Berlin, New York, miles, July 30, 1967, home bearing 257°, mean bearing 256° (nonrandom, P < ). Figure IB, the simi
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Q o9 Q. B FIGURE 4. Release (A) showing very little scatter of the vanishing bearings but a mean deviating appreciably from the home direction, contrasted with a release (B) with much more scattered bearings but a more homeward directed mean; A, Berry Hill Fire Tower, New York, miles from the loft, October 14, 1968, home bearing 258°, mean bearing 299° (nonrandom, P < ) ; B, near New Berlin, New York, miles, July 30, 1967, home bearing 257°, mean bearing 256° (nonrandom, P < ). Figure IB, the similar values for the homeward component at the release sites 61 km and 91 km from the loft obscure the fact that at the 61 km site the mean vector deviates considerably from the home direction (mean HDC — ) but the scatter of the bearings is minimal (mean LMV = ), whereas at the 91 km site the mean vector is oriented very accurately toward home (mean HDC = ) but the scatter of the bearings is greater (mean LMV = ) ; , the similar values for the homeward component at the two sites result from quite different behavior by the pigeons (Fig. 4). Similarly, a sharp drop in the value of the homeward component is seen at both the 143 km north site (Fig. 1A) and the 120 km west site (Fig. ID), but the behavior of the pigeons at the two sites is fundamentally different. At 120 km west (Fig. 5A), the birds vanish randomly or nearly ran- domly (mean LMV = ) but sometimes with a slight tendency to go in the opposite direction from home (mean HDC: ), whereas at 143 km north (Fig. 5B), the birds always vanish nonrandomly and consistently show very little. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Ho
Size: 1598px × 1564px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
