Diurnal periodicity of death-feigning in Cylas formicarius (Coleoptera: Brentidae)

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Diurnal periodicity of death-feigning behavior, or thanatosis, was found in adults of the sweet potato weevil, Cylas formicarius (Fabricius) (Coleoptera: Brentidae). The proportion of death-feigned weevils was significantly lower at night than in the daytime only in males. The duration of death-feint was shorter at night than in the daytime in both sexes. The influences of a weevil's behavior prior to being startled (prestimulus behavior) on the proportion of adults feigning death and on the duration of the death-feint were examined. Resting weevils feigned death more frequently and took a longer duration to recover compared to walking ones. The results suggest that, in general, death-feigning is less frequent in active weevils compared to inactive ones. A cost-benefit relationship of death-feigning behavior is discussed in relation to survival and reproduction of C. formicarius.

Original languageEnglish
Pages (from-to)421-432
Number of pages12
JournalJournal of Insect Behavior
Volume14
Issue number4
DOIs
Publication statusPublished - 2001

Fingerprint

Cylas formicarius
Brentidae
periodicity
Coleoptera
death
Curculionidae
walking
potato
duration
Cylas formicarius elegantulus

Keywords

  • Death feigning
  • Defense
  • Diurnal rhythm
  • Sweet potato weevil
  • Thanatosis.

ASJC Scopus subject areas

  • Insect Science
  • Ecology, Evolution, Behavior and Systematics

Cite this

Diurnal periodicity of death-feigning in Cylas formicarius (Coleoptera : Brentidae). / Miyatake, Takahisa.

In: Journal of Insect Behavior, Vol. 14, No. 4, 2001, p. 421-432.

Research output: Contribution to journalArticle

@article{ce0faa471199479cb30feebc1be24a72,
title = "Diurnal periodicity of death-feigning in Cylas formicarius (Coleoptera: Brentidae)",
abstract = "Diurnal periodicity of death-feigning behavior, or thanatosis, was found in adults of the sweet potato weevil, Cylas formicarius (Fabricius) (Coleoptera: Brentidae). The proportion of death-feigned weevils was significantly lower at night than in the daytime only in males. The duration of death-feint was shorter at night than in the daytime in both sexes. The influences of a weevil's behavior prior to being startled (prestimulus behavior) on the proportion of adults feigning death and on the duration of the death-feint were examined. Resting weevils feigned death more frequently and took a longer duration to recover compared to walking ones. The results suggest that, in general, death-feigning is less frequent in active weevils compared to inactive ones. A cost-benefit relationship of death-feigning behavior is discussed in relation to survival and reproduction of C. formicarius.",
keywords = "Death feigning, Defense, Diurnal rhythm, Sweet potato weevil, Thanatosis.",
author = "Takahisa Miyatake",
year = "2001",
doi = "10.1023/A:1011196420147",
language = "English",
volume = "14",
pages = "421--432",
journal = "Journal of Insect Behavior",
issn = "0892-7553",
publisher = "Springer New York",
number = "4",

}

TY - JOUR

T1 - Diurnal periodicity of death-feigning in Cylas formicarius (Coleoptera

T2 - Brentidae)

AU - Miyatake, Takahisa

PY - 2001

Y1 - 2001

N2 - Diurnal periodicity of death-feigning behavior, or thanatosis, was found in adults of the sweet potato weevil, Cylas formicarius (Fabricius) (Coleoptera: Brentidae). The proportion of death-feigned weevils was significantly lower at night than in the daytime only in males. The duration of death-feint was shorter at night than in the daytime in both sexes. The influences of a weevil's behavior prior to being startled (prestimulus behavior) on the proportion of adults feigning death and on the duration of the death-feint were examined. Resting weevils feigned death more frequently and took a longer duration to recover compared to walking ones. The results suggest that, in general, death-feigning is less frequent in active weevils compared to inactive ones. A cost-benefit relationship of death-feigning behavior is discussed in relation to survival and reproduction of C. formicarius.

AB - Diurnal periodicity of death-feigning behavior, or thanatosis, was found in adults of the sweet potato weevil, Cylas formicarius (Fabricius) (Coleoptera: Brentidae). The proportion of death-feigned weevils was significantly lower at night than in the daytime only in males. The duration of death-feint was shorter at night than in the daytime in both sexes. The influences of a weevil's behavior prior to being startled (prestimulus behavior) on the proportion of adults feigning death and on the duration of the death-feint were examined. Resting weevils feigned death more frequently and took a longer duration to recover compared to walking ones. The results suggest that, in general, death-feigning is less frequent in active weevils compared to inactive ones. A cost-benefit relationship of death-feigning behavior is discussed in relation to survival and reproduction of C. formicarius.

KW - Death feigning

KW - Defense

KW - Diurnal rhythm

KW - Sweet potato weevil

KW - Thanatosis.

UR - http://www.scopus.com/inward/record.url?scp=0034879270&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034879270&partnerID=8YFLogxK

U2 - 10.1023/A:1011196420147

DO - 10.1023/A:1011196420147

M3 - Article

AN - SCOPUS:0034879270

VL - 14

SP - 421

EP - 432

JO - Journal of Insect Behavior

JF - Journal of Insect Behavior

SN - 0892-7553

IS - 4

ER -