Temperature effects on the development and multiple generations in the alkali bee, nomia melanderi cockerell1. Stephen, W. P. Entomologia Experimentalis et Applicata, 8(3):228–240, September, 1965.
Paper doi abstract bibtex The range for development of post-diapausing prepupae of the alkali bee lies between 17 and 35°. Peak developmental temperature is approximately 29°. Although temperatures above 33° are outside of the favorable range of development and induce an obligatory “aestivation”, they are effective in causing a very rapid diapause breakage. Prepupae held at 35° for 110 days underwent no development, yet when removed to 29° they pupated in half of the time required by the controls at that temperature. Voltinism in the alkali bee is temperature dependent, and apparently the physiological system that triggers diapause is not activated unless the developing larvae or prepupae are subjected to temperatures below 27°. Males continue to emerge throughout the season, but a small percentage of the male population appears before any females to effect the phenomenon of proterandry.
@article{stephen_temperature_1965,
title = {Temperature effects on the development and multiple generations in the alkali bee, nomia melanderi cockerell1},
volume = {8},
issn = {00138703},
url = {http://doi.wiley.com/10.1111/j.1570-7458.1965.tb00856.x},
doi = {10.1111/j.1570-7458.1965.tb00856.x},
abstract = {The range for development of post-diapausing prepupae of the alkali bee lies between 17 and 35°. Peak developmental temperature is approximately 29°. Although temperatures above 33° are outside of the favorable range of development and induce an obligatory “aestivation”, they are effective in causing a very rapid diapause breakage. Prepupae held at 35° for 110 days underwent no development, yet when removed to 29° they pupated in half of the time required by the controls at that temperature. Voltinism in the alkali bee is temperature dependent, and apparently the physiological system that triggers diapause is not activated unless the developing larvae or prepupae are subjected to temperatures below 27°. Males continue to emerge throughout the season, but a small percentage of the male population appears before any females to effect the phenomenon of proterandry.},
language = {en},
number = {3},
urldate = {2017-08-31},
journal = {Entomologia Experimentalis et Applicata},
author = {Stephen, W. P.},
month = sep,
year = {1965},
pages = {228--240}
}
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