Show simple item record

dc.contributor.authorZalucki, MP
dc.contributor.authorParry, HR
dc.contributor.authorZalucki, JM
dc.date.accessioned2017-06-21T12:31:02Z
dc.date.available2017-06-21T12:31:02Z
dc.date.issued2016
dc.identifier.issn1442-9985
dc.identifier.doi10.1111/aec.12285
dc.identifier.urihttp://hdl.handle.net/10072/141184
dc.description.abstractMonarch butterfly (Danaus plexippus) populations are in decline in agricultural landscapes, in which genetically modified crops that are resistant to herbicides (‘Roundup Ready’) have resulted in the decimation of milkweed (Asclepias spp.) hosts over large areas due to the increased use of glyphosate. Movement is the key ecological process linking individual fitness traits to the utilization of sparse resources distributed across landscapes with emergent population level consequences. Often, movement ecology is highly simplified or even abstracted into a simple rate of flow between populations (i.e. a metapopulation) separated by a hostile ‘matrix’. Whereas, we can gain important insights into the population dynamic as a whole if we explore movement as an explicit, complex, behavioural process in which the matrix is not simply a void. We developed a spatially explicit individual-based model to describe host-seeking behaviour over the lifetime of a monarch butterfly, which utilizes hosts both aggregated in patches and scattered across the wider landscape as a substrate for laying eggs. We examine the simulated movement distances and spatial population distribution (eggs laid) as a result of different movement rules (directionality), perceptive distance (ability to find) and landscape configuration (how milkweed is distributed). This indicates the potential consequences of cleaning up the matrix (i.e. the obliteration of non-crop vegetation with Roundup) and changing habitat configurations at a landscape scale on individual movement behaviours and the emergent number of eggs laid, essentially the birth term in any population model. Our model generates movement distances of the order of 12 km commensurate with summer breeding monarchs and suggests that milkweed removal has reduced egg laying by up to 30%. We suggest possible amelioration strategies.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherWiley-Blackwell Publishing Asia
dc.relation.ispartofpagefrom154
dc.relation.ispartofpageto167
dc.relation.ispartofjournalAustral Ecology
dc.relation.ispartofvolume41
dc.subject.fieldofresearchEnvironmental sciences
dc.subject.fieldofresearchOther environmental sciences not elsewhere classified
dc.subject.fieldofresearchBiological sciences
dc.subject.fieldofresearchcode41
dc.subject.fieldofresearchcode419999
dc.subject.fieldofresearchcode31
dc.titleMovement and egg laying in Monarchs: To move or not to move, that is the equation
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dc.description.versionAccepted Manuscript (AM)
gro.rights.copyright© 2016 Ecological Society of Australia. This is the peer reviewed version of the following article: Movement and egg laying in Monarchs: To move or not to move that is the equation, Austral Ecology, Vol41, pp. 154–167, 2016 which has been published in final form at 10.1111/aec.12285. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving (http://olabout.wiley.com/WileyCDA/Section/id-828039.html)
gro.hasfulltextFull Text
gro.griffith.authorZalucki, Jacinta M.


Files in this item

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record