Fitness costs of female choosiness in a socially monogamous songbird DOI Creative Commons
Wolfgang Forstmeier, Daiping Wang, Katrin Martin

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2021, Volume and Issue: unknown

Published: May 4, 2021

Abstract Female mate choice is thought to be responsible for the evolution of many extravagant male ornaments and displays, but costs being too selective may hinder choosiness. Selection against choosiness should strongest in socially monogamous mating systems, because females end up without a partner forego reproduction, especially when prefer same few partners (frequency-dependent selection). Here we quantify fitness having preferences that are difficult satisfy. We capitalise on recent discovery female zebra finches ( Taeniopygia guttata ) males familiar song dialect. measured captive breeding colonies which one third were given ample opportunity choose their preferred dialect (two thirds all males; ‘relaxed competition’), while two had compete over limited pool mates they (one ‘high competition’). As expected, social pairings strongly assortative with regard In high-competition group, 26% remained unpaired, yet still obtained relatively high by using brood parasitism as an alternative reproductive tactic. Another 31% paired disassortatively These showed increased levels extra-pair paternity, mostly same-dialect sires, suggesting not abolished after pairing. However, did have lower success. Overall, group reached equal those experienced relaxed competition. Our study suggests tactics such egg dumping can help overcome frequency-dependent highly system, thereby facilitating

Language: Английский

Fitness costs of female choosiness are low in a socially monogamous songbird DOI Creative Commons
Wolfgang Forstmeier, Daiping Wang, Katrin Martin

et al.

PLoS Biology, Journal Year: 2021, Volume and Issue: 19(11), P. e3001257 - e3001257

Published: Nov. 4, 2021

Female mate choice is thought to be responsible for the evolution of many extravagant male ornaments and displays, but costs being too selective may hinder choosiness. Selection against choosiness particularly strong in socially monogamous mating systems, because females end up without a partner forego reproduction, especially when prefer same few partners (frequency-dependent selection). Here, we quantify fitness having preferences that are difficult satisfy, by manipulating availability preferred males. We capitalize on recent discovery female zebra finches ( Taeniopygia guttata ) males familiar song dialect. measured captive breeding colonies which one-third were given ample opportunity choose their dialect (two-thirds all males; “relaxed competition”), while two-thirds had compete over limited pool mates they (one-third “high competition”). As expected, social pairings strongly assortative with regard In high-competition group, 26% remained unpaired, yet still obtained relatively high using brood parasitism as an alternative reproductive tactic. Another 31% paired disassortatively These showed increased levels extra-pair paternity, mostly same-dialect sires, suggesting not abolished after pairing. However, did have lower success. Overall, group reached equal those experienced relaxed competition. Our study suggests tactics such egg dumping can help overcome frequency-dependent system, thereby facilitating

Language: Английский

Citations

5
Proximate causes of infertility and embryo mortality in captive zebra finches DOI Creative Commons
Yifan Pei, Wolfgang Forstmeier, Daiping Wang

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2019, Volume and Issue: unknown

Published: Nov. 20, 2019

Abstract Some species show high rates of reproductive failure, which is puzzling because natural selection works against such failure in every generation. Hatching common both captive and wild zebra finches ( Taeniopygia guttata ), yet little known about its proximate causes. Here we analyze data on performance (fate >23,000 eggs) based up to 14 years breeding four finch populations. We find that virtually all aspects are negatively affected by inbreeding (mean r = -0.117), an early-starting, age-related decline -0.132), poor early-life nutrition - 0.058). However, these effects together explain only 3% the variance infertility, offspring mortality, fecundity fitness. In contrast, individual repeatability different fitness components varied between 15% 50%. As expected, found relatively low heritability (median: 7% phenotypic, 29% individually repeatable variation). Yet, some heritable variation appears be maintained antagonistic pleiotropy (negative genetic correlations) male traits female traits. The large amount unexplained suggests a potentially important role local dominance epistasis, including possibility segregating incompatibilities.

Language: Английский

Citations

4
Manipulation of Color Patterns in Jumping Spiders for Use in Behavioral Experiments DOI Open Access
Malika Ihle, Lisa A. Taylor

Journal of Visualized Experiments, Journal Year: 2019, Volume and Issue: 147

Published: May 21, 2019

In the field of behavioral ecology, many experiments are designed to investigate evolutionary purposes colorful traits in context sexual selection and predation.Methods various but mostly consist modifying color patterns individuals with diverse colorants.Such techniques have been used across vertebrate taxa, particularly birds, remained underdeveloped for invertebrates because difficulty effectively manipulating small organisms.Instead, manipulate appearance invertebrates, scientists usually modified lighting environment filter out certain wavelengths.However, such a method affects not only phenotypic trait interest entire individual its surrounding.Here, scaling down previously on we present ways colors arthropods, using equally emblematic understudied species: jumping spiders. Video LinkThe video component this article can be found at https://www.jove.com/video/59824/ 1 , fighting ability as competitor 2 or palatability prey item 3 .To understand adaptive traits, researchers that involve ways.Some colored decoy stimuli models 4,5,6,7,8 photographs 9 videos 10,11,12 presented receivers experiments.Others, especially when manipulated affect live 13,14,15,16,17 .All these manipulations, while ingenious, disadvantage removing potentially important natural behavior and/or affecting much more than interest.In large vertebrates, very often directly animals (reviewed Hill McGraw, 2006 18 ).Individual feathers beaks markers 2,19,20,21,22,23,24 dyes containing hydrogen peroxide hair lighteners 25,26,27 paints including nail polish 28 Protocol 1. Equipment preparation

Language: Английский

Citations

3
Manipulation of Color Patterns in Jumping Spiders for Use in Behavioral Experiments DOI Open Access
Malika Ihle, Lisa A. Taylor

Journal of Visualized Experiments, Journal Year: 2019, Volume and Issue: 147

Published: May 21, 2019

In the field of behavioral ecology, many experiments are designed to investigate evolutionary purposes colorful traits in context sexual selection and predation. Methods various but mostly consist modifying color patterns individuals with diverse colorants. Such techniques have been used across vertebrate taxa, particularly birds, remained underdeveloped for invertebrates because difficulty effectively manipulating small organisms. Instead, manipulate appearance invertebrates, scientists usually modified lighting environment filter out certain wavelengths. However, such a method affects not only phenotypic trait interest entire individual its surrounding. Here, scaling down previously on we present ways colors arthropods, using equally emblematic understudied species: jumping spiders.

Language: Английский

Citations

2
Is female mate choice repeatable across males with nearly identical songs? DOI
Daiping Wang, Wolfgang Forstmeier, Pietro B. D’Amelio

et al.

Animal Behaviour, Journal Year: 2021, Volume and Issue: 181, P. 137 - 149

Published: Oct. 11, 2021

Language: Английский

Citations

2
Fitness costs of female choosiness in a socially monogamous songbird DOI Creative Commons
Wolfgang Forstmeier, Daiping Wang, Katrin Martin

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2021, Volume and Issue: unknown

Published: May 4, 2021

Abstract Female mate choice is thought to be responsible for the evolution of many extravagant male ornaments and displays, but costs being too selective may hinder choosiness. Selection against choosiness should strongest in socially monogamous mating systems, because females end up without a partner forego reproduction, especially when prefer same few partners (frequency-dependent selection). Here we quantify fitness having preferences that are difficult satisfy. We capitalise on recent discovery female zebra finches ( Taeniopygia guttata ) males familiar song dialect. measured captive breeding colonies which one third were given ample opportunity choose their preferred dialect (two thirds all males; ‘relaxed competition’), while two had compete over limited pool mates they (one ‘high competition’). As expected, social pairings strongly assortative with regard In high-competition group, 26% remained unpaired, yet still obtained relatively high by using brood parasitism as an alternative reproductive tactic. Another 31% paired disassortatively These showed increased levels extra-pair paternity, mostly same-dialect sires, suggesting not abolished after pairing. However, did have lower success. Overall, group reached equal those experienced relaxed competition. Our study suggests tactics such egg dumping can help overcome frequency-dependent highly system, thereby facilitating

Language: Английский

Citations

1