hkr.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Wild mallards have more "goose-like" bills than their ancestors
Kristianstad University, Research environment Man & Biosphere Health (MABH). Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
Kristianstad University.
Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
Frankrike.
Show others and affiliations
2015 (English)In: 4th Pan-European Duck Symposium, Hangö, Finland, 7-11/4, 2015, 2015, 38- p.Conference paper, Abstract (Refereed)
Abstract [en]

Wild populations of the world’s most common dabbling duck, the Mallard (Anas platyrhynchos), run the risk of genetic introgression by farmed conspecifics released for hunting purposes. We tested whether bill morphology of free-living birds has changed since large-scale releases of farmed Mallards started. Three groups of Mallards from Sweden, Norway and Finland were compared: historical wild (before large-scale releases started), present-day wild, and present-day farmed. Higher density of bill lamellae was observed in historical wild Mallards (only males). Farmed Mallards had wider bills than present-day and historical wild ones. Present-day wild and farmed Mallards also had higher and shorter bills than historical wild Mallards. Present-day Mallards thus tend to have more ‘‘goose-like’’ bills (wider, higher, and shorter) than their ancestors. Our study suggests that surviving released Mallards affect morphological traits in wild population by introgression. We discuss how such anthropogenic impact may lead to a maladapted and genetically compromised wild Mallard population. Our study system has bearing on other taxa where large-scale releases of conspecifics with ‘alien genes’ may cause a cryptic invasive process that nevertheless has fitness consequences for individual birds.

Place, publisher, year, edition, pages
2015. 38- p.
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:hkr:diva-16072OAI: oai:DiVA.org:hkr-16072DiVA: diva2:974262
Conference
4th Pan-European Duck Symposium, Hangö, Finland, 7-11/4, 2015
Available from: 2016-09-26 Created: 2016-09-26 Last updated: 2017-05-08Bibliographically approved

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Söderquist, PärElmberg, JohanGunnarsson, Gunnar
By organisation
Research environment Man & Biosphere Health (MABH)Avdelningen för NaturvetenskapKristianstad University
Biological Sciences

Search outside of DiVA

GoogleGoogle Scholar

Total: 1 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf