Monarch Butterflies Show Differential Utilization of Nine Midwestern Milkweed Species Hellmich, Richard Bradbury, Steven Pocius, Victoria Marie Pleasants, John Debinski, Diane Bidne, Keith Debinski, Diane Hellmich, Richard Bradbury, Steven Blodgett, Sue
dc.contributor.department Natural Resource Ecology and Management
dc.contributor.department Entomology
dc.contributor.department Ecology, Evolution and Organismal Biology 2019-06-23T16:05:27.000 2020-06-30T02:24:48Z 2020-06-30T02:24:48Z 2018-10-01
dc.description.abstract <p>Monarch butterfly overwintering numbers have declined over the past 20 years. Restoring habitat that includes milkweeds, the only host plants for larval monarch butterflies, is necessary to increase monarch numbers within the breeding range. The value of different milkweed species for restoration will depend, in part, on the extent to which they are utilized by ovipositing females. The number of eggs laid on different species over a season will be a function of plant size and phenology as well as female preference. We examined seasonal egg deposition and females' oviposition choices by comparing the number of eggs laid by free-flying wild monarchs on each of nine native milkweed species occurring in Iowa (<em>Asclepias syriaca, Asclepias tuberosa, Asclepias incarnata, Asclepias verticillata, Asclepias exaltata, Asclepias hirtella, Asclepias speciosa, Asclepias sullivantii</em>, and <em>Cynanchum laeve</em>). One plot, consisting of clusters of each of the nine species, was established at each of 14 sites across the state of Iowa. Eggs were counted weekly in June, July and August 2015–2017. The highest egg totals were recorded on <em>A. incarnata</em> and <em>A. syriaca</em> in all years. Fewer eggs were counted on <em>A. exaltata, A. hirtella, A. tuberosa, A. verticillata</em>, and <em>C. laeve</em>. Our results show that monarchs prefer some milkweed species over others, but that they can use all nine native milkweed species for oviposition.</p>
dc.description.comments <p>This article is published as Pocius, Victoria Marie, John Pleasants, Diane Debinski, Keith Bidne, Richard L. Hellmich, Steven Bradbury, and Sue Blodgett. "Monarch Butterflies Show Differential Utilization of Nine Midwestern Milkweed Species." <em>Frontiers in Ecology and Evolution</em> 6 (2018): 169. doi: <a href="">10.3389/fevo.2018.00169</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/
dc.identifier.articleid 1510
dc.identifier.contextkey 14358186
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ent_pubs/508
dc.language.iso en
dc.source.bitstream archive/|||Sat Jan 15 00:42:31 UTC 2022
dc.source.uri 10.3389/fevo.2018.00169
dc.subject.disciplines Ecology and Evolutionary Biology
dc.subject.disciplines Entomology
dc.subject.disciplines Natural Resources Management and Policy
dc.subject.disciplines Plant Sciences
dc.subject.disciplines Population Biology
dc.subject.keywords Danaus plexippus
dc.subject.keywords milkweed species (Asclepias spp)
dc.subject.keywords oviposition preference
dc.subject.keywords habitat restoration
dc.subject.keywords conservation
dc.title Monarch Butterflies Show Differential Utilization of Nine Midwestern Milkweed Species
dc.type article
dc.type.genre article
dspace.entity.type Publication
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