Mixed Mating in a Multi-Origin Population Suggests High Potential for Genetic Rescue in North Island Brown Kiwi, Apteryx mantelli

Simple item page
dc.citation.volume2
dc.contributor.authorUndin M
dc.contributor.authorLockhart PJ
dc.contributor.authorHills SFK
dc.contributor.authorArmstrong DP
dc.contributor.authorCastro I
dc.contributor.editorBerger-Tal O
dc.date.accessioned2024-07-21T23:31:11Z
dc.date.available2024-07-21T23:31:11Z
dc.date.issued2021-08-10
dc.description.abstractReinforcement translocations are increasingly utilised in conservation with the goal of achieving genetic rescue. However, concerns regarding undesirable results, such as genetic homogenisation or replacement, are widespread. One factor influencing translocation outcomes is the rate at which the resident and the introduced individuals interbreed. Consequently, post-release mate choice is a key behaviour to consider in conservation planning. Here we studied mating, and its consequences for genomic admixture, in the North Island brown kiwi Apteryx mantelli population on Ponui Island which was founded by two translocation events over 50 years ago. The two source populations used are now recognised as belonging to two separate management units between which birds differ in size and are genetically differentiated. We examined the correlation between male and female morphometrics for 17 known pairs and quantified the relatedness of 20 pairs from this admixed population. In addition, we compared the genetic similarity and makeup of 106 Ponui Island birds, including 23 known pairs, to birds representing the source populations for the original translocations. We found no evidence for size-assortative mating. On the contrary, genomic SNP data suggested that kiwi of one feather did not flock together, meaning that mate choice resulted in pairing between individuals that were less related than expected by random chance. Furthermore, the birds in the current Ponui Island population were found to fall along a gradient of genomic composition consistent with non-clustered representation of the two parental genomes. These findings indicate potential for successful genetic rescue in future Apteryx reinforcement translocations, a potential that is currently under utilised due to restrictive translocation policies. In light of our findings, we suggest that reconsideration of these policies could render great benefits for the future diversity of this iconic genus in New Zealand.
dc.description.confidentialfalse
dc.edition.editionAugust 2021
dc.identifier.citationUndin M, Lockhart PJ, Hills SFK, Armstrong DP, Castro I. (2021). Mixed Mating in a Multi-Origin Population Suggests High Potential for Genetic Rescue in North Island Brown Kiwi, Apteryx mantelli. Frontiers in Conservation Science. 2.
dc.identifier.doi10.3389/fcosc.2021.702128
dc.identifier.eissn2673-611X
dc.identifier.elements-typejournal-article
dc.identifier.number702128
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/70252
dc.languageEnglish
dc.publisherFrontiers Media S.A.
dc.publisher.urihttps://www.frontiersin.org/journals/conservation-science/articles/10.3389/fcosc.2021.702128/full
dc.relation.isPartOfFrontiers in Conservation Science
dc.rights(c) 2021 The Author/s
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectaves
dc.subjectassortative mating
dc.subjectbreeding behaviour
dc.subjectconservation management
dc.subjecthybridisation
dc.subjectmate choice
dc.subjecttranslocation
dc.titleMixed Mating in a Multi-Origin Population Suggests High Potential for Genetic Rescue in North Island Brown Kiwi, Apteryx mantelli
dc.typeJournal article
pubs.elements-id460353
pubs.organisational-groupOther
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Published version.pdf
Size:
1.79 MB
Format:
Adobe Portable Document Format
Description:
460353 PDF.pdf
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
9.22 KB
Format:
Plain Text
Description:
Download
Collections
Journal Articles