F. S. Bodenheimer (auth.)'s Animal Ecology To-Day PDF

By F. S. Bodenheimer (auth.)

ISBN-10: 940175845X

ISBN-13: 9789401758451

ISBN-10: 9401763100

ISBN-13: 9789401763103

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I .. .. .. 1 1 .. .. ~I E~"'~ ~ ·~ <=: 1-<0.. .. , 0 1-< 21 I7 17 12 13 I .. .. .. .. 11 I5 18 17 16 I The climogram of Ceratitis at Tel-Aviv (Fig. 12) confirms this important fluctuation, which for Jerusalem is still more important (minimum 1 to maximum 8) whereas in ] ericho conditions are unfavourable (index: 0 to 2). ,. •c •c ,. r-----------------------, A. B. lS lO 25 IS lO 10 15 10 10 1() 20 a. PARIS b. CAIQO d. ANKARA f. H. H. Fig. 12. Climograms of Ceratitis capitata. A. in various regions: a.

A female lays about 400 eggs. From each 100 eggs there grow into adults in X VII VIII IX VI v 4 individuals. 11 25 18 23 55 In Scymnus quadripunctatus a continuous series of five annual generations is observed 14 • Beetles of the fourth, but mainly of the fifth generation, hibernate. This last generation develops in 217 days. Whereas winter is passed mainly in the adult stage, imaginal longevity, from spring to autumn, of the first to fourth generations, is rather short, and rarely surpasses four to six weeks.

II I .. 4 80 445 1 -1 1 1/3 0 1 1/3 .. 5 55 43 xii .. 2 1/3 .. 3 1/3 2 0 2 0 .. 2 0 .. 1 2 2 2 .. 6 80 1 2 .. 0 60 58 xi 3 1/3 .. 8 72 69 38 1 ix 3 0 .. 2 0 2 1/3 1 1/3 .. 1 .. 1 .. viii 1 .. vii 1 .. 1 1 1 1 -1 1 1/3 .. 2 67 96 .. 9 70 131 ii Table VIII. Complete Ceratitis-bonitatio n of an Orange Grove in the Neighbourhood of Tel Aviv in 1932 and 1934 § 61 In Tel Aviv climatic conditions are favourable to optimal all the year round. In 1932 they were favourable, except for December. The rain-factor is only slightly unfavourable in January.

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Animal Ecology To-Day by F. S. Bodenheimer (auth.)


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