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Report on the phenological observations in the British isles from December 1932 to November 1933. No. 43.

✍ Scribed by J. Edmund Clark; Ivan D. Margary; C. J. P. Cave

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
263 KB
Volume
61
Category
Article
ISSN
0035-9009

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✦ Synopsis

Abstract

1933 was warm, dry and sunny to an exceptional degree. Warmth was +2Β°F., rain 87 per cent, and sunshine 109 per cent for the 12‐month period December to November. This was due chiefly to conditions in the summer, and therefore phenologically most effective, half year. Scotland, N. and E., and England, NE., were strikingly favoured. The difference in flowering period between England, S., and Scotland, N., was reduced from 20 to 10 days. The relative spacing of spring migrant isophenes tallied. Owing to the cold snap in the south at the end of April, they were decidedly close there, but broadened in the north, curiously giving a β€œnormal” year for all districts. The most striking insect phenomenon was the excessive invasion of migrant butterflies. Noteworthy was the record of 30 of the huge American β€œMilkweed” butterfly, Danaus plexippus, treble any previous record.

πŸ“œ SIMILAR VOLUMES

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