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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
2005-12-16
pubmed:abstractText
The silken girdles of pupae of the swallowtail butterfly Atrophaneura alcinous show black and white color diphenism. Field observations revealed that all pupae observed on non-food plants and the leaves and stems of the larval food plant Aristolochia debilis were classified as a silken girdle of a black type, while a large portion of pupae pupating on the twigs and trunks of cherry trees in close proximity to A. debilis were classified as a silken girdle of a black type. Additionally, all pupae observed on the surfaces of artificial objects in areas where there are no surrounding plants or trees were classified as a silken girdle of a white type. We demonstrated the effect of day length and the texture, light, plant odor and humidity of pupation sites on the coloration of the silken girdle in A. alcinous. Regardless of long-day or short-day day length conditions, light conditions of constant light or dark, or the presence of a plant odor of A. debilis as environmental cues, all larvae placed at over 80% relative humidity (R.H.) developed into pupae with a silken girdle of a black type. However, all larvae developed into pupae with a silken girdle of a white type when R.H. was below 75%. Furthermore, when pupae with a silken girdle of a white type were transferred to conditions of 90% R.H. within 24 hr of pupation, the white color of the silken girdle changed into a black type within 24 hr of the transfer. The present data suggest that the induction of a black coloration of the silken girdle in A. alcinous requires a R.H. of approximately 80% or more as an environmental factor.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0289-0003
pubmed:author
pubmed:issnType
Print
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1259-63
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Environmental factors affecting black/white coloration of the silken girdle in the swallowtail butterfly, Atrophaneura alcinous (Lepidoptera: Papilionidae).
pubmed:affiliation
Department of Physics, Biology and Informatics, Faculty of Science, Yamaguchi University, Yamaguchi 753-8512, Japan.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't