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Sources of variability in heterospecific social information use for breeding habitat selection: Role of genetics and personality in collared flycatchers
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Biologiska sektionen, Institutionen för ekologi och genetik, Zooekologi. University Claude Bernard Lyon 1.ORCID-id: 0000-0002-7905-9691
2018 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Fritextbeskrivning
Abstract [en]

All their life, individuals have to make decisions that may strongly affect their fitness. To optimize their decisions, they can use personally acquired information but also information obtained from observing other individuals (“social information”). The propensity to gather and use social information and the information meaning might depend on both individual and environmental factors. Studying what drives within- and between-individual differences in social information use should help us understand the evolutionary potential of this supposedly adaptive behaviour. The aim of my PhD was to empirically investigate sources of variability in heterospecific social information use for breeding habitat selection. I worked on a natural population of collared flycatchers (Ficedula albicollis, Gotland Island, Sweden), a passerine species shown to cue on the presence, density, reproductive investment and nest site preference of dominant titmice for settlement decisions. Using both long term and experimental data, I showed that the use of heterospecific social information, measured as the probability to copy tit nest preference, is not heritable but depends on male age and aggressiveness and on tit apparent breeding investment at the time of flycatcher settlement. Using a playback experiment, I also showed that female flycatchers can fine-tune nest site choice according to (i) song features supposedly reflecting great tit (Parus major) quality and (ii) their own aggressiveness level. This thesis highlights the importance of personality in the use of heterospecific social information for breeding site selection in this population, and broadens the traditionally known sources of heterospecific information to fine song characteristics reflecting heterospecifics’ quality. To fully understand the evolutionary mechanisms and consequences of heterospecific social information use, genetically based plasticity and fitness consequences remain to be explored.

Ort, förlag, år, upplaga, sidor
Uppsala: Acta Universitatis Upsaliensis, 2018. , s. 287
Serie
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1651-6214
Nyckelord [en]
Heterospecific social information, personality, aggressiveness, nest site choice, within- and between-individual variability, quantitative genetics, experimental approaches in the wild, collared flycatchers
Nationell ämneskategori
Evolutionsbiologi Ekologi Etologi
Identifikatorer
URN: urn:nbn:se:uu:diva-364214OAI: oai:DiVA.org:uu-364214DiVA, id: diva2:1258311
Disputation
2018-11-22, Fontannes Room, Building Darwin D, Université Claude Bernard Lyon 1, 43 boulevard du 11 novembre 1918, Villeurbanne, France, 14:00 (Engelska)
Opponent
Handledare
Anmärkning

The public defence will be video-linked to seminar room 1003, Evolutionary Biology Center (EBC), Norbyvägen 18D, Uppsala.

Tillgänglig från: 2018-11-01 Skapad: 2018-10-24 Senast uppdaterad: 2018-11-01Bibliografiskt granskad
Delarbeten
1. Heterospecific nest site copying behavior in a wild bird: assessing the influence of genetics and past experience on a joint breeding phenotype
Öppna denna publikation i ny flik eller fönster >>Heterospecific nest site copying behavior in a wild bird: assessing the influence of genetics and past experience on a joint breeding phenotype
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2018 (Engelska)Ingår i: Frontiers in Ecology and Evolution, E-ISSN 2296-701X, Vol. 5, nr 167Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Breeding site selection is often a joint decision of pair members in species with biparental care and the experience of both pair members may influence the use of information for site selection. Nevertheless, quantitative genetics of joint information use for site selection remains unexplored so far. We used an experimental approach to quantify the relative importance of genetics (heritability) and past experience (age, familiarity with the environment, previous breeding success, previous information use) in heterospecific social information use for nest site selection in wild collared flycatchers (Ficedula albicollis). Flycatchers collect social information from resident tits for nest site selection. We created an apparent preference of tits for a novel nest site feature and recorded choices of flycatchers (copying or rejecting the tit preference). Copying behavior was stronger for naive individuals but also differed between years, which could be explained by contrasting seasonality in the demonstrator species. Past experience as reflected by age affected subsequent use of social information: pairs with a yearling male were more likely to copy the heterospecific preference than pairs with older immigrant males. There was no general pattern in successive individual choices over the years. Accordingly, individual repeatability in copying tit preference was very low. At the pair level, we estimated sex-specific direct and indirect genetic effects on the joint nest site decision and found no sex-specific heritability and no cross-sex genetic correlation. Our results confirm the importance of past experience for social information use and suggest that social information use is highly plastic and most likely not genetically inherited in collared flycatchers. Whether individuals use social information should be related to environmentally-induced changes in the quality of information and thus be context-dependent. Selection may therefore act on the ability to optimally use social information in varying environments and on the processes underlying such adjustment, such as learning, rather than the use of information itself.

Nationell ämneskategori
Evolutionsbiologi Genetik
Identifikatorer
urn:nbn:se:uu:diva-345984 (URN)10.3389/fevo.2017.00167 (DOI)000451611600001 ()
Forskningsfinansiär
Vetenskapsrådet
Anmärkning

Correction in: FRONTIERS IN ECOLOGY AND EVOLUTION, Volume: 6, Article Number: UNSP 80, DOI: 10.3389/fevo.2018.00080

Tillgänglig från: 2018-03-13 Skapad: 2018-03-13 Senast uppdaterad: 2019-01-24Bibliografiskt granskad
2. No evidence for behavioural syndrome and genetic basis for three personality traits in a wild bird population
Öppna denna publikation i ny flik eller fönster >>No evidence for behavioural syndrome and genetic basis for three personality traits in a wild bird population
(Engelska)Ingår i: Animal BehaviourArtikel i tidskrift (Refereegranskat) Submitted
Nationell ämneskategori
Ekologi
Identifikatorer
urn:nbn:se:uu:diva-364210 (URN)
Tillgänglig från: 2018-10-24 Skapad: 2018-10-24 Senast uppdaterad: 2018-10-24
3. Male aggressiveness predicts heterospecific social information use for breeding site selection: experimental evidence from a wild bird population
Öppna denna publikation i ny flik eller fönster >>Male aggressiveness predicts heterospecific social information use for breeding site selection: experimental evidence from a wild bird population
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(Engelska)Manuskript (preprint) (Övrigt vetenskapligt)
Nyckelord
Ficedula albicollis, collared flycatcher, copying, personality, boldness, aggressiveness, neophobia
Nationell ämneskategori
Ekologi
Forskningsämne
Biofarmaci; Biologi med inriktning mot zooekologi
Identifikatorer
urn:nbn:se:uu:diva-364083 (URN)
Tillgänglig från: 2018-10-23 Skapad: 2018-10-23 Senast uppdaterad: 2018-10-24
4. Use of song traits associated to singer quality as heterospecific social information for nest site selection
Öppna denna publikation i ny flik eller fönster >>Use of song traits associated to singer quality as heterospecific social information for nest site selection
(Engelska)Manuskript (preprint) (Övrigt vetenskapligt)
Nyckelord
Ficedula albicollis, social information, signal, eavesdropping, bird song, heterospecific competition, individual quality, personality, personal information, Parus major
Nationell ämneskategori
Ekologi
Identifikatorer
urn:nbn:se:uu:diva-364084 (URN)
Tillgänglig från: 2018-10-23 Skapad: 2018-10-23 Senast uppdaterad: 2018-10-30

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