Reproductive Effort of Widowed Birds

Sasvári, Lajos

doi:10.2307/4738

Cited by 84 publications

(40 citation statements)

References 20 publications

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“…Also the amount of parental care may in uence sexual imprinting (ten Cate 1984). However, in great tits and blue tits, the presence of both parents is usually necessary for successful reproduction (Bjö rklund & Westman 1986;Sasvari 1986) and so both sexes would usually be available as role models. Birds may not only use parents but also brood mates as role models in mate choice (ten Cate & Vos 1999;Slagsvold & Hansen 2001).…”

Section: Discussionmentioning

confidence: 99%

Mate choice and imprinting in birds studied by cross-fostering in the wild

Slagsvold

Hansen

Johannessen

et al. 2002

Proc. R. Soc. Lond. B

136

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Sexual-selection theories generally assume that mating preferences are heritable traits. However, there is substantial evidence that the rearing environment may be important for the development of mating preferences, indicating that they may be learnt, or modi ed by experience. The relative importance of such sexual imprinting across species remains largely unexplored. Here, we report results of a large-scale crossfostering experiment in the wild in which nestling birds were raised by parents of a different species. We show that resulting sexual imprinting may have a negative effect on pairing success in one species (the great tit, Parus major), but not in two other species (the blue tit, P. caeruleus and the pied ycatcher, Ficedula hypoleuca). A remarkable variation thus seems to exist, even between species that are congeneric and have similar breeding ecologies. The cross-fostering resulted in heterospeci c pairings between the two tit species (female blue tit breeding with male great tit), which has never, to our knowledge, been previously documented. However, the chicks edging from these nests were all blue tit.

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Section: Discussionmentioning

confidence: 99%

Mate choice and imprinting in birds studied by cross-fostering in the wild

Slagsvold

Hansen

Johannessen

et al. 2002

Proc. R. Soc. Lond. B

136

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“…Investigators have also used data on weight losses by breeding females as a measure of reproductive effort (e.g., Howe, 1979;De Steven, 1980;Sasvari, 1986). Caution is necessary, however, in assessing these weight data; ovary regression is likely to be responsible for much of the decrease in weight of female birds as the breeding season progresses (Ricklefs, 1974;Ricklefs and Hussell, 1984).…”

Section: Weight Lossmentioning

confidence: 99%

Mortality Patterns, Sex Ratios, and Parental Investment in Monogamous Birds

Breitwisch

1989

Current Ornithology

149

123

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“…Guerra et al, 1995; Itzkowitz, 1984;Neil, 1984; Richter et al, 133 2010;Solomon, 1993). Nevertheless, in many species both partners can or do perform the 134 same behaviours (see Royle et al, 2014 for a review on the flexibility of parental care 135 behaviour), and at least partly compensate for their mates' tasks if needed (Itzkowitz, 1984; 136 Lavery et al, 2010;Sasvari, 1986;Storey et al, 1994) indicating that sex roles might be less 137 fixed. For the behavioural consistency, we followed up two possible mate choice scenarios: …”

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Different or alike? Female rainbow kribs choose males of similar consistency and dissimilar level of boldness

Scherer¹,

Kuhnhardt²,

Schuett³

2017

Animal Behaviour

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to different conditions. However, sheer costs of flexibility cannot explain the polymorphism 22 created by personality variation. In a correlative approach, we here tested whether mate 23 choice might act as a major driving force maintaining personality variation in the 24 monogamous, biparental rainbow krib, Pelvicachromis pulcher. We personality-typed all 25 males and females for their boldness (activity under simulated predation risk) and allowed 26 females to choose between two males that differed in their boldness (behavioural level and 27 consistency). Prior to the choice, females were allowed to observe both males, expressing 28 their natural boldness towards a video animated natural predator. Both sexes showed 29 personality differences in boldness over the short-and long-term. Furthermore, when 30 removing side-biased females, we found a dis-assortative mating preference for the 31 behavioural level and an assortative preference for behavioural consistency in boldness. 32Such preference patterns might facilitate effective parental role allocation during offspring 33 care and/or provide genetic benefits. Our results suggest that sexual selection plays an 34 important role in the evolution of personality differences. 35 36 Keywords: anti-predator behaviour, assortative, behavioural compatibility, cichlid, mate 37 choice, Pelvicachromis pulcher, personality, risk-taking, sexual selection, side bias 38 39 3 Individuals have to cope with a wide array of environmental challenges. Therefore, 40 flexibility in the expression of behavioural responses towards different and changing 41 conditions should be favoured by selection ). Yet, individuals often show 42 considerable consistent between-individual differences in behaviour over time and/or 43 contexts (Boissy, 1995). Such personality differences are common throughout the animal 44 kingdom (reviewed in Gosling, 2001; Kralj-Fišer et al., 2014) and have been shown for 45 various behavioural traits, such as activity pattern, aggressiveness, exploratory tendencies, 46 boldness and fearfulness (reviewed in Dall et al., 2004; Gosling, 2001;. 47Personality traits are moderately heritable (Ariyomo, Carter, et al., 2013; Patrick et al., 48 2013;Reif et al., 2003;van Oers et al., 2005) and have fitness consequences (e.g. Ariyomo et 49 al., 2012; Dingemanse et al., 2005;Smith et al., 2008), suggesting they are not merely non-50 adaptive noise that surrounds an adaptive optimum (Wilson, 1998). Nevertheless, 51 underlying mechanisms that generate and maintain behavioural polymorphism are largely 52 unclear and many aspects of the growing body of theoretical frameworks still remain to be 53 empirically tested (reviewed in e.g. Schuett et al., 2010;Wolf et al., 2010). 54 55 Recently, Schuett et al. (2010) pointed out that sexual selection may be important in 56 generating and maintaining personality variation though this possibility has rarely been 57 tested (but see e.g. Montiglio et al., 2016;. According to the proposed 58 framework , personalities are expected to p...

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Reproductive Effort of Widowed Birds

Cited by 84 publications

References 20 publications

Mate choice and imprinting in birds studied by cross-fostering in the wild

Mate choice and imprinting in birds studied by cross-fostering in the wild

Mortality Patterns, Sex Ratios, and Parental Investment in Monogamous Birds

Different or alike? Female rainbow kribs choose males of similar consistency and dissimilar level of boldness

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