Photoperiodic Induction of Adult Diapause in North American Populations of the Convergent Lady Beetle (Coleoptera: Coccinellidae)

John J. Obrycki; Joshua S. McCord; Nathan H. Mercer; Jennifer A. White

doi:10.1093/ee/nvy128

Photoperiodic Induction of Adult Diapause in North American Populations of the Convergent Lady Beetle (Coleoptera: Coccinellidae)

John J. Obrycki, Joshua S. McCord, Nathan H. Mercer, Jennifer A. White

Entomology

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Characterization of intraspecific variation is required to assess the potential nontarget effects of augmentative releases of Hippodamia convergens (Guerin) (Coleoptera: Coccinellidae) from the Western United States on local populations of this species in the Eastern United States. Adults of this predatory lady beetle species overwinter in adult reproductive diapause, thus examining responses to photoperiods can characterize geographic variation influencing their seasonal biology. This laboratory study quantified the induction and duration of adult reproductive diapause in five North American populations of H. convergens in response to four constant photoperiods (16:8, 14:10, 12:12, and 10:14 [L:D] h) at 22C. Three populations were collected over a range of latitudes (31 N to 42 N) in the central portion of the United States (Texas, Kansas, and Iowa); two populations were purchased from commercial sources in the Western United States. All populations exhibited a long-day response to photoperiods: =17% of females reared at 16:8 (L:D) h entered diapause, whereas shorter photoperiods (12:12 and 10:14 [L:D] h) induced diapause in 82 to 100% of females. The response to 14:10 (L:D) h showed significant variation among the populations, ranging from 0 to 89% of females in reproductive diapause. Both the phenotypic variation in response to diapause inducing photoperiods and the genetic variation in North American populations of H. convergens document the geographic variability in this widely distributed predatory species.

Original language	English
Pages (from-to)	1596-1600
Number of pages	5
Journal	Environmental Entomology
Volume	47
Issue number	6
DOIs	https://doi.org/10.1093/ee/nvy128
State	Published - Dec 7 2018

Bibliographical note

Funding Information:
This is publication no. 18-08-042 of the Kentucky Agricultural Experiment Station and is published with the approval of the Director. This work is supported by the National Institute of Food and Agriculture, U.S. Department of Agriculture, Hatch project accession number 1008480. Data are deposited at UKnowledge: https://doi.org/10.13023/K22Q0W. We thank the following for collecting H. convergens: James Nechols, Kansas State University and Laura Weiser-Erlandson, Texas A&M University Central Texas. We thank Catherine A. Tauber, Cornell University, for her review and constructive suggestions of this manuscript.

Publisher Copyright:
© 2018. Published by Oxford University Press on behalf of Entomological Society of America.

Keywords

geographic variation
ladybird beetle
phenology
reproductive diapause
seasonal development

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Ecology
Insect Science

Access to Document

10.1093/ee/nvy128

Cite this

@article{735b720bc3354aa3bce1f7c11ebc76aa,

title = "Photoperiodic Induction of Adult Diapause in North American Populations of the Convergent Lady Beetle (Coleoptera: Coccinellidae)",

abstract = "Characterization of intraspecific variation is required to assess the potential nontarget effects of augmentative releases of Hippodamia convergens (Guerin) (Coleoptera: Coccinellidae) from the Western United States on local populations of this species in the Eastern United States. Adults of this predatory lady beetle species overwinter in adult reproductive diapause, thus examining responses to photoperiods can characterize geographic variation influencing their seasonal biology. This laboratory study quantified the induction and duration of adult reproductive diapause in five North American populations of H. convergens in response to four constant photoperiods (16:8, 14:10, 12:12, and 10:14 [L:D] h) at 22C. Three populations were collected over a range of latitudes (31 N to 42 N) in the central portion of the United States (Texas, Kansas, and Iowa); two populations were purchased from commercial sources in the Western United States. All populations exhibited a long-day response to photoperiods: =17% of females reared at 16:8 (L:D) h entered diapause, whereas shorter photoperiods (12:12 and 10:14 [L:D] h) induced diapause in 82 to 100% of females. The response to 14:10 (L:D) h showed significant variation among the populations, ranging from 0 to 89% of females in reproductive diapause. Both the phenotypic variation in response to diapause inducing photoperiods and the genetic variation in North American populations of H. convergens document the geographic variability in this widely distributed predatory species.",

keywords = "geographic variation, ladybird beetle, phenology, reproductive diapause, seasonal development",

author = "Obrycki, {John J.} and McCord, {Joshua S.} and Mercer, {Nathan H.} and White, {Jennifer A.}",

note = "Funding Information: This is publication no. 18-08-042 of the Kentucky Agricultural Experiment Station and is published with the approval of the Director. This work is supported by the National Institute of Food and Agriculture, U.S. Department of Agriculture, Hatch project accession number 1008480. Data are deposited at UKnowledge: https://doi.org/10.13023/K22Q0W. We thank the following for collecting H. convergens: James Nechols, Kansas State University and Laura Weiser-Erlandson, Texas A&M University Central Texas. We thank Catherine A. Tauber, Cornell University, for her review and constructive suggestions of this manuscript. Publisher Copyright: {\textcopyright} 2018. Published by Oxford University Press on behalf of Entomological Society of America.",

year = "2018",

month = dec,

day = "7",

doi = "10.1093/ee/nvy128",

language = "English",

volume = "47",

pages = "1596--1600",

number = "6",

}

TY - JOUR

T1 - Photoperiodic Induction of Adult Diapause in North American Populations of the Convergent Lady Beetle (Coleoptera: Coccinellidae)

AU - Obrycki, John J.

AU - McCord, Joshua S.

AU - Mercer, Nathan H.

AU - White, Jennifer A.

N1 - Funding Information: This is publication no. 18-08-042 of the Kentucky Agricultural Experiment Station and is published with the approval of the Director. This work is supported by the National Institute of Food and Agriculture, U.S. Department of Agriculture, Hatch project accession number 1008480. Data are deposited at UKnowledge: https://doi.org/10.13023/K22Q0W. We thank the following for collecting H. convergens: James Nechols, Kansas State University and Laura Weiser-Erlandson, Texas A&M University Central Texas. We thank Catherine A. Tauber, Cornell University, for her review and constructive suggestions of this manuscript. Publisher Copyright: © 2018. Published by Oxford University Press on behalf of Entomological Society of America.

PY - 2018/12/7

Y1 - 2018/12/7

N2 - Characterization of intraspecific variation is required to assess the potential nontarget effects of augmentative releases of Hippodamia convergens (Guerin) (Coleoptera: Coccinellidae) from the Western United States on local populations of this species in the Eastern United States. Adults of this predatory lady beetle species overwinter in adult reproductive diapause, thus examining responses to photoperiods can characterize geographic variation influencing their seasonal biology. This laboratory study quantified the induction and duration of adult reproductive diapause in five North American populations of H. convergens in response to four constant photoperiods (16:8, 14:10, 12:12, and 10:14 [L:D] h) at 22C. Three populations were collected over a range of latitudes (31 N to 42 N) in the central portion of the United States (Texas, Kansas, and Iowa); two populations were purchased from commercial sources in the Western United States. All populations exhibited a long-day response to photoperiods: =17% of females reared at 16:8 (L:D) h entered diapause, whereas shorter photoperiods (12:12 and 10:14 [L:D] h) induced diapause in 82 to 100% of females. The response to 14:10 (L:D) h showed significant variation among the populations, ranging from 0 to 89% of females in reproductive diapause. Both the phenotypic variation in response to diapause inducing photoperiods and the genetic variation in North American populations of H. convergens document the geographic variability in this widely distributed predatory species.

AB - Characterization of intraspecific variation is required to assess the potential nontarget effects of augmentative releases of Hippodamia convergens (Guerin) (Coleoptera: Coccinellidae) from the Western United States on local populations of this species in the Eastern United States. Adults of this predatory lady beetle species overwinter in adult reproductive diapause, thus examining responses to photoperiods can characterize geographic variation influencing their seasonal biology. This laboratory study quantified the induction and duration of adult reproductive diapause in five North American populations of H. convergens in response to four constant photoperiods (16:8, 14:10, 12:12, and 10:14 [L:D] h) at 22C. Three populations were collected over a range of latitudes (31 N to 42 N) in the central portion of the United States (Texas, Kansas, and Iowa); two populations were purchased from commercial sources in the Western United States. All populations exhibited a long-day response to photoperiods: =17% of females reared at 16:8 (L:D) h entered diapause, whereas shorter photoperiods (12:12 and 10:14 [L:D] h) induced diapause in 82 to 100% of females. The response to 14:10 (L:D) h showed significant variation among the populations, ranging from 0 to 89% of females in reproductive diapause. Both the phenotypic variation in response to diapause inducing photoperiods and the genetic variation in North American populations of H. convergens document the geographic variability in this widely distributed predatory species.

KW - geographic variation

KW - ladybird beetle

KW - phenology

KW - reproductive diapause

KW - seasonal development

UR - http://www.scopus.com/inward/record.url?scp=85054811369&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85054811369&partnerID=8YFLogxK

U2 - 10.1093/ee/nvy128

DO - 10.1093/ee/nvy128

M3 - Article

C2 - 30165434

AN - SCOPUS:85054811369

SN - 0046-225X

VL - 47

SP - 1596

EP - 1600

JO - Environmental Entomology

JF - Environmental Entomology

IS - 6

ER -

Photoperiodic Induction of Adult Diapause in North American Populations of the Convergent Lady Beetle (Coleoptera: Coccinellidae)

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this