• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Fakultet for naturvitenskap (NV)
  • Institutt for biologi
  • View Item
  •   Home
  • Fakultet for naturvitenskap (NV)
  • Institutt for biologi
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Indirect social effects of the individual strategy in producer-scrounger foraging interactions

Pettersen, Nils Håkon
Master thesis
Thumbnail
View/Open
14370_FULLTEXT.pdf (2.154Mb)
14370_COVER.pdf (1.625Mb)
URI
http://hdl.handle.net/11250/2447281
Date
2017
Metadata
Show full item record
Collections
  • Institutt for biologi [1707]
Abstract
When animals interact socially they experience and react to phenotypes of their social partners. Such interactions can affect behaviours and fitness, and therefore opponent effects (i.e. indirect social effects) can maintain or prevent the existence of certain phenotypes in a population. In this study, I repeatedly assayed individual producer-scrounger behaviour in house sparrows (Passer domesticus) in both group- and pair-wise assays, to be able to assess indirect effects in whether different opponents affect the behaviour of focal individuals, and to what magnitude. I show repeatable individual differences in feeding behaviour, and that individuals behaved consistently across the group- and pair-wise contexts. However, I found no evidence for repeatable social environment effects, most likely due to high abundance and availability of food, causing scrounging rates to be low. This study therefore suggests that dividing naturally flock-feeding individuals into pairs is an effective way of assessing individual variation in social behavioural responses to individual partners, and the profitability of different foraging and social strategies.
Publisher
NTNU

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit