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Peignier M, Araya-Ajoy YG, Ringler M, Ringler E. Personality traits differentially affect components of reproductive success in a Neotropical poison frog. Proc Biol Sci 2023; 290:20231551. [PMID: 37727087 PMCID: PMC10509575 DOI: 10.1098/rspb.2023.1551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 08/23/2023] [Indexed: 09/21/2023] Open
Abstract
Individual reproductive success has several components, including the acquisition of mating partners, offspring production, and offspring survival until adulthood. While the effects of certain personality traits-such as boldness or aggressiveness-on single components of reproductive success are well studied, we know little about the composite and multifaceted effects behavioural traits can have on all the aspects of reproductive success. Behavioural traits positively linked to one component of reproductive success might not be beneficial for other components, and these effects may differ between sexes. We investigated the influence of boldness, aggressiveness, and exploration on the number of mating partners, mating events, and offspring surviving until adulthood in males and females of the Neotropical poison frog Allobates femoralis. Behavioural traits had different-even opposite-effects on distinct components of reproductive success in both males and females. For example, males who displayed high levels of aggressiveness and exploration (or low levels of aggressiveness and exploration) managed to attract high number of mating partners, while males with low levels of boldness, low levels of aggressiveness, and high levels of exploration had the most offspring surviving until adulthood. Our results therefore suggest correlational selection favouring particular combinations of behavioural traits.
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Affiliation(s)
- Mélissa Peignier
- Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, 3032 Hinterkappelen, Switzerland
- Messerli Research Institute, University of Veterinary Medicine Vienna, 1210 Vienna, Austria
| | - Yimen G. Araya-Ajoy
- Centre for Biodiversity Dynamics, Department of Biology, Norwegian University of Science and Technology, 7034 Trondheim, Norway
| | - Max Ringler
- Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, 3032 Hinterkappelen, Switzerland
- Department of Behavioral and Cognitive Biology, University of Vienna, 1030 Vienna, Austria
- Department of Evolutionary Biology, University of Vienna, 1030 Vienna, Austria
- Institute of Electronic Music and Acoustics, University of Music and Performing Arts Graz, 8010 Graz, Austria
| | - Eva Ringler
- Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, 3032 Hinterkappelen, Switzerland
- Messerli Research Institute, University of Veterinary Medicine Vienna, 1210 Vienna, Austria
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2
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Gaona-Gordillo I, Holtmann B, Mouchet A, Hutfluss A, Sánchez-Tójar A, Dingemanse NJ. Are animal personality, body condition, physiology and structural size integrated? A comparison of species, populations and sexes, and the value of study replication. J Anim Ecol 2023; 92:1707-1718. [PMID: 37323075 DOI: 10.1111/1365-2656.13966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 05/23/2023] [Indexed: 06/17/2023]
Abstract
A major question in behavioural ecology is why behaviour, physiology and morphology are often integrated into syndromes. In great tits, Parus major, for example, explorative males are larger (vs. smaller) and leaner (vs. heavier) compared to less explorative individuals. Unfortunately, considerable debate exists on whether patterns found in specific studies are replicable. This debate calls for study replication among species, populations and sexes. We measured behavioural (exploration), physiological (breathing rate) and morphological traits (body mass, tarsus length, wing length, bill length) in two species (great vs. blue tits Cyanistes caeruleus), two populations (Forstenrieder Park vs. Starnberg) and two sexes (males vs. females). We then tested whether the same pattern of integration characterized all unique combinations of these three biological categories (hereafter called datasets). We used a multi-year repeated measures set-up to estimate among-individual trait correlation matrices for each dataset. We then used structural equation modelling to test for size-dependent behaviour and physiology, size-corrected (i.e. size-independent) behaviour-physiology correlations and size-corrected body mass-dependent behaviour and physiology. Finally, we used meta-analyses to test which structural paths were generally (vs. conditionally) supported (vs. unsupported). We found general and consistent support for size-dependent physiology and size-corrected body mass-dependent physiology across datasets: faster breathers were smaller but heavier for their size. Unexpectedly, condition-dependent behaviour was not supported: explorative birds were neither leaner, nor was this relationship heterogeneous across datasets. All other hypothesized patterns were dataset-specific: the covariance between size and behaviour, and between behaviour and physiology differed in sign between datasets, and both were, on average, not supported. This heterogeneity was not explained by any of our moderators: species, population or sex. The specific pattern of size- and condition-dependent physiology reported for a unique combination of species, population, and sex, thus generally predicted those in others. Patterns of size- or condition-dependent behaviour (i.e. 'personality'), or behaviour-physiology syndromes reported in specific datasets, by contrast, did not. These findings call for studies revealing the ecological background of this variation and highlight the value of study replication to help understand whether patterns of phenotypic integration reported in one study can be generalized.
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Affiliation(s)
- Irene Gaona-Gordillo
- Behavioural Ecology, Department of Biology, Ludwig Maximilians University of Munich, Planegg-Martinsried, Germany
| | - Benedikt Holtmann
- Behavioural Ecology, Department of Biology, Ludwig Maximilians University of Munich, Planegg-Martinsried, Germany
- Federal Maritime and Hydrographic Agency, Department Management of the Sea, Division Assessment and Monitoring, Section Environmental Assessment, Rostock, Germany
| | - Alexia Mouchet
- Behavioural Ecology, Department of Biology, Ludwig Maximilians University of Munich, Planegg-Martinsried, Germany
- IDEEV UMR EGCE, IRD, CNRS, Paris-Saclay University, Gif-sur-Yvette, France
| | - Alexander Hutfluss
- Behavioural Ecology, Department of Biology, Ludwig Maximilians University of Munich, Planegg-Martinsried, Germany
- Bayerisches Landesamt für Umwelt, Ref. 51 Fachgrundlagen Naturschutz, Augsburg, Germany
| | | | - Niels J Dingemanse
- Behavioural Ecology, Department of Biology, Ludwig Maximilians University of Munich, Planegg-Martinsried, Germany
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3
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Lou Y, Zhao Q, Hu Y, Chen L, Liu P, Fang Y, Lloyd H, Sun Y. Personality-dependent nest site selection and nest success during incubation in wild chestnut thrushes. iScience 2023; 26:107419. [PMID: 37575181 PMCID: PMC10415915 DOI: 10.1016/j.isci.2023.107419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/08/2023] [Accepted: 07/14/2023] [Indexed: 08/15/2023] Open
Abstract
In birds, little is known about how individuals choose nest sites based on their personality traits. Here, we investigate whether a female's personality (activity and breathing rate) can affect patterns of nest site selection at different spatial scales in a wild population of chestnut thrush (Turdus rubrocanus) and determine whether nest site characteristics and female personality traits affect clutch size and nest success during incubation. We found that neither activity nor breathing rate were associated with large-scale nesting habitat variables. At the fine-scale level, more active females chose nest sites with greater nest lateral concealment. Females with higher breathing rates laid smaller clutch sizes than individuals with lower breathing rates. Nests of females with lower breathing rate had higher nest success during incubation. This work highlights the relationships between personality and nest site selection in birds, and the important role of female personality traits in reproductive success.
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Affiliation(s)
- Yingqiang Lou
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Qingshan Zhao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yunbiao Hu
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Lijun Chen
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Pengfei Liu
- School of Life Sciences and Technology, Longdong University, Qingyang 745000, China
| | - Yun Fang
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Huw Lloyd
- Department of Natural Sciences, Manchester Metropolitan University. Manchester M15GD, UK
| | - Yuehua Sun
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
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4
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Roth AM, Kent SM, Hobson EA, Kritsky G, Nakagawa S. Personality-mediated speed-accuracy tradeoffs in mating in a 17-year periodical cicada. Behav Ecol 2022. [DOI: 10.1093/beheco/arac082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
There exists growing evidence that animal personality (consistent between individual differences in behavior) can influence an individual’s fitness. Furthermore, limitations in behavioral plasticity may cause personality-mediated tradeoffs to occur, for example, between speed and accuracy in decision making. We explored whether various measures of personality could predict speed-accuracy tradeoffs in mate selection using Pharaoh cicadas (Magicicada septendecim) and examined the phenotypic traits predicting male mating performance and advertisement rates. We assessed whether male exploration behavior, boldness, and weight could predict a male’s overall copulation attempt rate (the number of attempted copulations with conspecifics of either sex), the number of errors a male made when selecting a mate (the number of same-sex copulation attempts), and male reproductive performance (whether a male successfully copulated with a female). We also assessed whether personality-dependent variation in male advertisement rate (the number of calling song bouts) might underpin the correlation between exploration behavior and mating performance. Although male exploration behavior did not predict male advertisement rate, we found that faster-exploring males exhibited higher overall rates of attempted copulations while also attempting more same-sex copulations, compared to slower-exploring males, suggesting a personality-mediated speed-accuracy tradeoff. Despite making more mate choice errors, however, faster explorers were more likely to successfully copulate with females, compared to slower explorers, indicating that speed may be favored over accuracy in systems where heavily male-biased sex ratios lead to scramble competition. Overall, this work highlights the role of personality in sexual selection and demonstrates that personality can influence speed-accuracy trade-offs in mating.
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Affiliation(s)
- Allison M Roth
- Department of Biology, McGill University , 1205 Dr Penfield Ave Montréal, Québec, H3A 1B1 , Canada
| | - Sarah M Kent
- Winton Centre, Great Parks of Hamilton County , 10245 Winton Rd, Cincinnati, OH 45231 , USA
| | - Elizabeth A Hobson
- Department of Biological Sciences, University of Cincinnati , 318 College Drive, Cincinnati, OH 45221 , USA
| | - Gene Kritsky
- Department of Biology, Mount St. Joseph University , 5701 Delhi Rd, Cincinnati, OH 45233 , USA
| | - Shinichi Nakagawa
- Evolution and Ecology Research Centre and School of Biological and Environmental Sciences, University of New South Wales , Sydney, NSW 2052 , Australia
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5
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No reproductive fitness benefits of dear enemy behaviour in a territorial songbird. Behav Ecol Sociobiol 2022. [DOI: 10.1007/s00265-022-03199-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Hutfluss A, Bermúdez-Cuamatzin E, Mouchet A, Briffa M, Slabbekoorn H, Dingemanse NJ. Male song stability shows cross-year repeatability but does not affect reproductive success in a wild passerine bird. J Anim Ecol 2022; 91:1507-1520. [PMID: 35509187 DOI: 10.1111/1365-2656.13736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/18/2022] [Indexed: 12/01/2022]
Abstract
Predictable behaviour (or "behavioural stability") might be favoured in certain ecological contexts, e.g. when representing a quality signal. Costs associated with producing stable phenotypes imply selection should favour plasticity in stability when beneficial. Repeatable among-individual differences in degree of stability are simultaneously expected if individuals differ in ability to pay these costs, or in how they resolve cost-benefit trade-offs. Bird song represents a prime example, where stability may be costly yet beneficial when stable singing is a quality signal favoured by sexual selection. Assuming energetic costs, ecological variation (e.g. in food availability) should result in both within- and among-individual variation in stability. If song stability represents a quality signal, we expect directional selection favouring stable singers. For a three-year period, we monitored 12 nest box plots of great tits Parus major during breeding. We recorded male songs during simulated territory intrusions, twice during their mate's laying stage, and twice during incubation. Each preceding winter, we manipulated food availability. Assuming that stability is costly, we expected food-supplemented males to sing more stable songs. We also expected males to sing more stable songs early in the breeding season (when paternity is not decided), and stable singers to have increased reproductive success. We found strong support for plasticity in stability for two key song characteristics: minimum frequency and phrase length. Males were plastic because they became more stable over the season, contrary to expectations. Food-supplementation did not affect body condition but increased stability in minimum frequency. This treatment effect occurred only in one year, implying that food supplementation affected stability only in interaction with (unknown) year-specific ecological factors. We found no support for directional, correlational, or fluctuating selection on the stability in minimum frequency (i.e., the song trait whose stability exhibited cross-year repeatability): stable singers did not have higher reproductive success. Our findings imply that stability in minimum frequency is not a fitness quality indicator unless males enjoy fitness benefits via pathways not studied here. Future studies should thus address the mechanisms shaping and maintaining individual repeatability of song stability in the wild.
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Affiliation(s)
- Alexander Hutfluss
- Behavioural Ecology, Department of Biology, Ludwig Maximilian University of Munich (LMU), Martinsried, Germany
| | | | - Alexia Mouchet
- Behavioural Ecology, Department of Biology, Ludwig Maximilian University of Munich (LMU), Martinsried, Germany.,Laboratoire Evolution Génomes Comportement et Ecologie (EGCE), UMR Université Paris-Saclay-CNRS-IRD, Gif-sur-Yvette, France
| | - Mark Briffa
- School of Biological and Marine Sciences, Animal Behaviour Research Group, University of Plymouth, Plymouth, Devon, UK
| | - Hans Slabbekoorn
- Behavioural Biology, Institute of Biology, BE, Leiden, The Netherlands
| | - Niels J Dingemanse
- Behavioural Ecology, Department of Biology, Ludwig Maximilian University of Munich (LMU), Martinsried, Germany
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7
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Eccard JA, Herde A, Schuster AC, Liesenjohann T, Knopp T, Heckel G, Dammhahn M. Fitness, risk taking, and spatial behavior covary with boldness in experimental vole populations. Ecol Evol 2022; 12:e8521. [PMID: 35154645 PMCID: PMC8829380 DOI: 10.1002/ece3.8521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 10/12/2021] [Accepted: 10/21/2021] [Indexed: 11/17/2022] Open
Abstract
Individuals of a population may vary along a pace-of-life syndrome from highly fecund, short-lived, bold, dispersive "fast" types at one end of the spectrum to less fecund, long-lived, shy, plastic "slow" types at the other end. Risk-taking behavior might mediate the underlying life history trade-off, but empirical evidence supporting this hypothesis is still ambiguous. Using experimentally created populations of common voles (Microtus arvalis)-a species with distinct seasonal life history trajectories-we aimed to test whether individual differences in boldness behavior covary with risk taking, space use, and fitness. We quantified risk taking, space use (via automated tracking), survival, and reproductive success (via genetic parentage analysis) in 8 to 14 experimental, mixed-sex populations of 113 common voles of known boldness type in large grassland enclosures over a significant part of their adult life span and two reproductive events. Populations were assorted to contain extreme boldness types (bold or shy) of both sexes. Bolder individuals took more risks than shyer ones, which did not affect survival. Bolder males but not females produced more offspring than shy conspecifics. Daily home range and core area sizes, based on 95% and 50% Kernel density estimates (20 ± 10 per individual, n = 54 individuals), were highly repeatable over time. Individual space use unfolded differently for sex-boldness type combinations over the course of the experiment. While day ranges decreased for shy females, they increased for bold females and all males. Space use trajectories may, hence, indicate differences in coping styles when confronted with a novel social and physical environment. Thus, interindividual differences in boldness predict risk taking under near-natural conditions and have consequences for fitness in males, which have a higher reproductive potential than females. Given extreme inter- and intra-annual fluctuations in population density in the study species and its short life span, density-dependent fluctuating selection operating differently on the sexes might maintain (co)variation in boldness, risk taking, and pace-of-life.
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Affiliation(s)
- Jana A Eccard
- Animal Ecology Institute of Biochemistry and Biology University of Potsdam Potsdam Germany
| | - Antje Herde
- Animal Ecology Institute of Biochemistry and Biology University of Potsdam Potsdam Germany
- Animal Behaviour Faculty of Biology University of Bielefeld Bielefeld Germany
| | - Andrea C Schuster
- Animal Ecology Institute of Biochemistry and Biology University of Potsdam Potsdam Germany
- Institute of Ecology and Evolution University of Bern Bern Switzerland
| | - Thilo Liesenjohann
- Animal Ecology Institute of Biochemistry and Biology University of Potsdam Potsdam Germany
- BioConsult SH GmbH & Co. KG Husum Germany
| | - Tatjana Knopp
- Animal Ecology Institute of Biochemistry and Biology University of Potsdam Potsdam Germany
| | - Gerald Heckel
- Institute of Ecology and Evolution University of Bern Bern Switzerland
| | - Melanie Dammhahn
- Animal Ecology Institute of Biochemistry and Biology University of Potsdam Potsdam Germany
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8
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Tamin T, Doligez B. Assortative mating for between-patch dispersal status in a wild bird population: Exploring the role of direct and indirect underlying mechanisms. J Evol Biol 2021; 35:561-574. [PMID: 34480809 DOI: 10.1111/jeb.13925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 07/15/2021] [Accepted: 07/30/2021] [Indexed: 11/26/2022]
Abstract
Previous studies have reported functional integration between dispersal and other phenotypic traits allowing individuals to alleviate dispersal costs, and such associations can affect dispersal evolution in return. In sexually reproducing species, assortative mating according to dispersal can shape the maintenance of such trait associations. Despite the potentially crucial consequences of dispersal in natural populations, assortative mating for dispersal and its underlying mechanisms remain largely unexplored. Here, we assessed assortative mating for between-patch dispersal status in a fragmented population of a small passerine bird, the collared flycatcher, and explored whether such assortative mating could result from (i) direct mate choice based on dispersal-related behavioural (aggressiveness and boldness) and morphological traits (tarsus and wing length), (ii) biased mating due to spatio-temporal heterogeneity in the distribution of dispersal phenotypes and/or (iii) post-mating adjustment of dispersal phenotype or dispersal-related traits. We found intrinsic assortative mating (i.e. positive among-pair correlation) for current dispersal status (in the year of mating) but not for natal dispersal status, even though we could not exclude it due to limited power. We also found assortative mating for boldness and age category (yearlings vs. older adults), and the probability for pair members to be assorted for current dispersal status was higher when both pair members were of similar boldness score and of the same age compared with mixed-age pairs. Mate choice based on boldness and age thus appears as a possible mechanism underlying assortative mating for dispersal status. Our analyses however remained correlative, and only an experimental manipulation of these traits could allow inferring causal links. Non-random mating for dispersal-related traits may affect the evolution of dispersal syndromes in this population. More work is nevertheless needed to fully assess the evolutionary implications of age- and behaviour-based assortative mating for dispersal.
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Affiliation(s)
- Thibault Tamin
- Laboratoire de Biométrie et Biologie Evolutive, Université Lyon 1, UMR 5558, CNRS, Université de Lyon, Villeurbanne, France
| | - Blandine Doligez
- Laboratoire de Biométrie et Biologie Evolutive, Université Lyon 1, UMR 5558, CNRS, Université de Lyon, Villeurbanne, France.,Department of Ecology and Genetics, Animal Ecology, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden
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9
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Does song overlap signal aggressiveness? An experimental study with repeated measures in free-ranging great tits. Anim Behav 2021. [DOI: 10.1016/j.anbehav.2021.07.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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10
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Senécal S, Mouchet A, Dingemanse NJ. Life-history trade-offs, density, lay date—not personality—explain multibroodedness in great tits. Behav Ecol 2021. [DOI: 10.1093/beheco/arab068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
In various taxa, multibroodedness is a common breeding strategy. Life-history theory predicts that individuals can increase fitness by producing multiple broods within a season. Despite the apparent increase in the number of offspring parents might produce per season, not all individuals are multibrooded, suggesting a trade-off. We studied ecological and behavioral factors influencing the initiation of second clutches in great tits (Parus major), an optionally multibrooded bird species, by distinguishing two types of clutches: replacement versus true second clutches, produced after failure versus successful first breeding attempts, respectively. We predicted which lay date, density, and investment in first clutches would decrease the probability of initiating a second clutch, but which faster exploring behavioral types with a faster pace-of-life would be more likely to be multibrooded. The probability of initiating true second clutches varied negatively within-individuals with lay date and breeding density. The initiation of replacement clutches instead varied negatively among-individuals with lay date and density, suggesting nonrandom settlement of behavioral types across environments. Individuals were less likely to be multibrooded when producing many offspring from their first clutch, suggesting within-year reproductive trade-offs, similar to previous studies. No previous research has linked personality to multibroodedness; here we show which neither the repeatable nor the plastic part of an individual’s exploratory behavior predicted multibroodedness. We confirmed our prediction which the resolution of trade-offs may occur either at the within- or among-individual level. Our research contributes to the understanding of life-history evolution in the wild by studying the mechanisms shaping multibroodedness within seasons.
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Affiliation(s)
- Sarah Senécal
- Département de Biologie, Chimie et Géographie, Université du Québec à Rimouski, Rimouski G5L 3A1, Canada
- Centre d’études nordiques, Université Laval, Québec G1V 0A6, Canada
- Quebec Center for Biodiversity Science, McGill University, Montréal H3A 0G4, Canada
| | - Alexia Mouchet
- Behavioural Ecology, Department of Biology, Ludwig Maximilian University of Munich, Munich 80539, Germany
| | - Niels J Dingemanse
- Behavioural Ecology, Department of Biology, Ludwig Maximilian University of Munich, Munich 80539, Germany
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11
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Heterogeneous selection on exploration behavior within and among West European populations of a passerine bird. Proc Natl Acad Sci U S A 2021; 118:2024994118. [PMID: 34234017 DOI: 10.1073/pnas.2024994118] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Heterogeneous selection is often proposed as a key mechanism maintaining repeatable behavioral variation ("animal personality") in wild populations. Previous studies largely focused on temporal variation in selection within single populations. The relative importance of spatial versus temporal variation remains unexplored, despite these processes having distinct effects on local adaptation. Using data from >3,500 great tits (Parus major) and 35 nest box plots situated within five West-European populations monitored over 4 to 18 y, we show that selection on exploration behavior varies primarily spatially, across populations, and study plots within populations. Exploration was, simultaneously, selectively neutral in the average population and year. These findings imply that spatial variation in selection may represent a primary mechanism maintaining animal personalities, likely promoting the evolution of local adaptation, phenotype-dependent dispersal, and nonrandom settlement. Selection also varied within populations among years, which may counteract local adaptation. Our study underlines the importance of combining multiple spatiotemporal scales in the study of behavioral adaptation.
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12
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Male aggressiveness and risk-taking during reproduction are repeatable but not correlated in a wild bird population. Behav Ecol Sociobiol 2021. [DOI: 10.1007/s00265-021-03044-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Abstract
The existence of among-individual variation in behaviour within populations is poorly understood. Recent theory suggests that fine-scale individual differences in investment into current versus future reproduction may lead to a ‘slow-fast’-pace-of-life continuum, also referred to as the ‘pace-of-life-syndrome’ (POLS) hypothesis. According to this idea, individuals are predicted to differ in their level of risk-taking, which may drive among-individual variation and covariation of behaviours. Consistent individual differences in aggression, an ecologically relevant and potentially risky behaviour, have been reported across the animal kingdom. Here we test whether such individual differences in aggression are a manifestation of underlying differences in risk-taking. In a wild blue tit (Cyanistes caeruleus) population, we used standard behavioural tests to investigate if male territorial aggressiveness and risk-taking during breeding are positively related. At the start of breeding, we simulated conspecific territorial intrusions to obtain repeated measures of male aggressiveness. Subsequently, we measured male risk-taking as their latency to resume brood provisioning after presenting two different predators at their nest: human and sparrowhawk, a common predator of adult songbirds. First, we found substantial repeatability for male aggressiveness (R = 0.56 ± 0.08 SE). Second, while males took longer to resume provisioning after presentation of a sparrowhawk mount as compared to a human observer, risk-taking was repeatable across these two predator contexts (R = 0.51 ± 0.13 SE). Finally, we found no evidence for a correlation between male aggressiveness and risk-taking, thereby providing little support to a main prediction of the POLS hypothesis.
Significance statement
Consistent, and often correlated, individual differences in basal behaviours, such as aggression, exploration and sociability, are found across the animal kingdom. Why individuals consistently differ in their behaviour is poorly understood, as behavioural traits would seem inherently flexible. The ‘pace-of-life syndrome’ (POLS) hypothesis proposes observed behavioural variation to reflect differences in risk-taking associated with individual reproductive strategies. We tested this idea in a wild blue tit population by investigating whether individual males that were more aggressive toward territorial intruders also took more risk when provisioning their nestlings under a threat of predation. While we found consistent individual differences in both aggressiveness and risk-taking, these behaviours were not significantly correlated. Therefore, our study demonstrates among-individual variation in ecologically relevant behaviours in wild blue tits but provides little support for the POLS hypothesis.
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Mouchet A, Dingemanse NJ. A quantitative genetics approach to validate lab- versus field-based behavior in novel environments. Behav Ecol 2021. [DOI: 10.1093/beheco/arab059] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Conclusions about the adaptive nature of repeatable variation in behavior (i.e., “personality”) are often derived from laboratory-based assays. However, the expression of genetic variation differs between laboratory and field. Laboratory-based behavior might not predict field-based behavior thus, cross-context validation is required. We estimated the cross-context correlation between behavior expressed by wild great tits (Parus major) in established laboratory versus field novel environment assays. Both assays have been used as proxies for “exploration tendency.” Behavior in both contexts had similar repeatability (R = 0.35 vs. 0.37) but differed in heritability (h2 = 0.06 vs. 0.23), implying differences in selection pressures. Unexpectedly, there was no cross-context correlation. Laboratory- and field-based behavior thus reflected expressions of two distinct underlying characters. Post hoc simulations revealed that sampling bias did not explain the lack of correlation. Laboratory-based behavior may reflect fear and exploration, but field-based behavior may reflect escape behavior instead, though other functional interpretations cannot be excluded. Thus, in great tits, activity expressed in laboratory versus field novel environment assays is modulated by multiple quasi-independent characters. The lack of cross-context correlation shown here may also apply to other setups, other repeatable behaviors, and other taxa. Our study thus implies care should be taken in labeling behaviors prior to firm validation studies.
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Affiliation(s)
- Alexia Mouchet
- Behavioural Ecology, Department of Biology, Ludwig Maximilian University Munich, Großhaderner Straße, Planegg-Martinsried, Germany
| | - Niels J Dingemanse
- Behavioural Ecology, Department of Biology, Ludwig Maximilian University Munich, Großhaderner Straße, Planegg-Martinsried, Germany
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14
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Roth AM, Dingemanse NJ, Nakagawa S, McDonald GC, Løvlie H, Robledo-Ruiz DA, Pizzari T. Sexual selection and personality: Individual and group-level effects on mating behaviour in red junglefowl. J Anim Ecol 2021; 90:1288-1306. [PMID: 33630314 DOI: 10.1111/1365-2656.13454] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 02/01/2021] [Indexed: 11/28/2022]
Abstract
Despite increasing evidence of the importance of repeatable among-individual differences in behaviour (animal personality) in ecology and evolution, little remains known about the role of animal personalities in sexual selection. Here, we present an investigation of the hypothesis that the personalities of individuals and their sexual partners play a role in different episodes of sexual selection, and the extent to which these effects are modulated by the social environment. We first examined how two repeatable behaviours-exploration and boldness-are associated with pre- and postcopulatory sexual selection in male red junglefowl Gallus gallus, using replicate groups across three experimental sex ratio treatments. We further explored how the social environment modulates relationships between male personality and mating performance, and whether mating is assortative or disassortative with respect to exploration or boldness. Finally, we examined behavioural mechanisms linking personality with mating performance. Across all sex ratios, the fastest and slowest exploring males courted females proportionally less, and faster exploring males associated with females more and received more sexual solicitations. In female-biased groups, the fastest and slowest exploring males experienced the highest mating success and lowest sperm competition intensity. Faster exploring males also obtained more mates in female-biased groups when their competitors were, on average, slower exploring, and the proportion of matings obtained by fast-exploring males decreased with the proportion of fast-exploring males in a group, consistent with negative frequency-dependent sexual selection. While boldness did not predict mating performance, there was a tendency for individuals to mate disassortatively with respect to boldness. Collectively, our results suggest that male exploration can play a role in sexual selection, and that sexual selection on personality is complex and contingent on the social environment.
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Affiliation(s)
- Allison M Roth
- Edward Grey Institute, Department of Zoology, University of Oxford, Oxford, UK.,Department of Biology, University of Florida, Gainesville, FL, USA
| | - Niels J Dingemanse
- Behavioural Ecology, Department of Biology, Ludwig Maximilians University of Munich, Munich, Germany
| | - Shinichi Nakagawa
- Evolution and Ecology Research Centre and School of Biological and Environmental Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Grant C McDonald
- Edward Grey Institute, Department of Zoology, University of Oxford, Oxford, UK.,Department of Ecology, University of Veterinary Medicine Budapest, Budapest, Hungary
| | - Hanne Løvlie
- Department of Physics Chemistry and Biology, IFM Biology, Linköping University, Linköping, Sweden
| | | | - Tommaso Pizzari
- Edward Grey Institute, Department of Zoology, University of Oxford, Oxford, UK
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15
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Rollins RE, Mouchet A, Margos G, Chitimia-Dobler L, Fingerle V, Becker NS, Dingemanse NJ. Repeatable differences in exploratory behaviour predict tick infestation probability in wild great tits. Behav Ecol Sociobiol 2021. [DOI: 10.1007/s00265-021-02972-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Abstract
Ecological factors and individual-specific traits affect parasite infestation in wild animals. Ixodid ticks are important ectoparasites of various vertebrate hosts, which include passerine bird species such as the great tit (Parus major). We studied various key ecological variables (breeding density, human disturbance) and phenotypic traits (exploratory behaviour, body condition) proposed to predict tick infestation probability and burden in great tits. Our study spanned 3 years and 12 nest box plots located in southern Germany. Breeding, adult great tits were assessed for exploration behaviour, body condition, and tick burden. Plots were open to human recreation; human disturbance was quantified in each plot as a recreation pressure index from biweekly nest box inspections. Infested individuals were repeatable in tick burden across years. These repeatable among-individual differences in tick burden were not attributable to exploration behaviour. However, faster explorers did have a higher infestation probability. Furthermore, body condition was negatively correlated to tick burden. Recreation pressure was correlated to increased infestation probability, although this relationship was just above the threshold of statistical significance. Our study implies that avian infestation probability and tick burden are each determined by distinct phenotypic traits and ecological factors. Our findings highlight the importance of animal behaviour and human disturbance in understanding variation in tick burden among avian hosts.
Significance statement
Various abiotic and biotic factors, including personality type, influence tick parasitism in birds, but exactly how all these factors interplay remains unclear. We studied a wild population of great tits over a 3-year period and assessed birds for their exploration behaviour and tick infestation. We found that more explorative great tits were more likely to be infested with ticks. By contrast, faster explorers did not have higher tick burdens. Tick burden was nevertheless moderately repeatable among individuals. Our results imply that animal personality influences the probability of parasite infestation, and that infestation likelihood versus intensity are determined by distinct mechanisms. Our work highlights the importance of animal behaviour to understand parasite infestation in wild populations.
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16
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Strauß AFT, Hutfluss A, Dingemanse NJ. Great tits responding to territorial intrusions sing less but alarm more on colder days. Ethology 2019. [DOI: 10.1111/eth.12989] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Aurelia F. T. Strauß
- Department Biology II Behavioural Ecology Ludwig‐Maximilians‐Universität (LMU) Munich Planegg‐Martinsried Germany
| | - Alexander Hutfluss
- Department Biology II Behavioural Ecology Ludwig‐Maximilians‐Universität (LMU) Munich Planegg‐Martinsried Germany
| | - Niels J. Dingemanse
- Department Biology II Behavioural Ecology Ludwig‐Maximilians‐Universität (LMU) Munich Planegg‐Martinsried Germany
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17
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Dingemanse NJ, Moiron M, Araya-Ajoy YG, Mouchet A, Abbey-Lee RN. Individual variation in age-dependent reproduction: Fast explorers live fast but senesce young? J Anim Ecol 2019; 89:601-613. [PMID: 31618450 DOI: 10.1111/1365-2656.13122] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 09/21/2019] [Indexed: 01/01/2023]
Abstract
Adaptive integration of life history and behaviour is expected to result in variation in the pace-of-life. Previous work focused on whether 'risky' phenotypes live fast but die young, but reported conflicting support. We posit that individuals exhibiting risky phenotypes may alternatively invest heavily in early-life reproduction but consequently suffer greater reproductive senescence. We used a 7-year longitudinal dataset with >1,200 breeding records of >800 female great tits assayed annually for exploratory behaviour to test whether within-individual age dependency of reproduction varied with exploratory behaviour. We controlled for biasing effects of selective (dis)appearance and within-individual behavioural plasticity. Slower and faster explorers produced moderate-sized clutches when young; faster explorers subsequently showed an increase in clutch size that diminished with age (with moderate support for declines when old), whereas slower explorers produced moderate-sized clutches throughout their lives. There was some evidence that the same pattern characterized annual fledgling success, if so, unpredictable environmental effects diluted personality-related differences in this downstream reproductive trait. Support for age-related selective appearance was apparent, but only when failing to appreciate within-individual plasticity in reproduction and behaviour. Our study identifies within-individual age-dependent reproduction, and reproductive senescence, as key components of life-history strategies that vary between individuals differing in risky behaviour. Future research should thus incorporate age-dependent reproduction in pace-of-life studies.
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Affiliation(s)
- Niels J Dingemanse
- Behavioural Ecology, Department of Biology, Ludwig Maximilians University of Munich, Planegg-Martinsried, Germany
| | - Maria Moiron
- Research Group Evolutionary Ecology of Variation, Max Planck Institute for Ornithology, Seewiesen, Germany.,Centre d'Ecologie Fonctionnelle et Evolutive, UMR 5175 Campus CNRS, Montpellier, France
| | - Yimen G Araya-Ajoy
- Research Group Evolutionary Ecology of Variation, Max Planck Institute for Ornithology, Seewiesen, Germany.,Center for Biodiversity Dynamics, Norwegian University of Science and Technology, Trondheim, Norway
| | - Alexia Mouchet
- Behavioural Ecology, Department of Biology, Ludwig Maximilians University of Munich, Planegg-Martinsried, Germany.,Research Group Evolutionary Ecology of Variation, Max Planck Institute for Ornithology, Seewiesen, Germany
| | - Robin N Abbey-Lee
- Research Group Evolutionary Ecology of Variation, Max Planck Institute for Ornithology, Seewiesen, Germany.,IFM Biology, AVIAN Behavioural Genomics and Physiology Group, Linköping University, Linköping, Sweden
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18
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Roth AM, Firth JA, Patrick SC, Cole EF, Sheldon BC. Partner’s age, not social environment, predicts extrapair paternity in wild great tits (Parus major). Behav Ecol 2019. [DOI: 10.1093/beheco/arz151] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
An individual’s fitness is not only influenced by its own phenotype, but by the phenotypes of interacting conspecifics. This is likely to be particularly true when considering fitness gains and losses caused by extrapair matings, as they depend directly on the social environment. While previous work has explored effects of dyadic interactions, limited understanding exists regarding how group-level characteristics of the social environment affect extrapair paternity (EPP) and cuckoldry. We use a wild population of great tits (Parus major) to examine how, in addition to the phenotypes of focal parents, two neighborhood-level traits—age and personality composition—predict EPP and cuckoldry. We used the well-studied trait “exploration behavior” as a measure of the reactive-proactive personality axis. Because breeding pairs inhabit a continuous “social landscape,” we first established an ecologically relevant definition of a breeding “neighborhood” through genotyping parents and nestlings in a 51-ha patch of woodland and assessing the spatial predictors of EPP events. Using the observed decline in likelihood of EPP with increasing spatial separation between nests, we determined the relevant neighborhood boundaries, and thus the group phenotypic composition of an individual’s neighborhood, by calculating the point at which the likelihood of EPP became negligible. We found no evidence that “social environment” effects (i.e., neighborhood age or personality composition) influenced EPP or cuckoldry. We did, however, find that a female’s own age influenced the EPP of her social mate, with males paired to older females gaining more EPP, even when controlling for the social environment. These findings suggest that partner characteristics, rather than group phenotypic composition, influence mating activity patterns at the individual level.
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Affiliation(s)
- Allison M Roth
- Edward Grey Institute of Field Ornithology, Department of Zoology, University of Oxford, Zoology Research and Administration Building, Oxford, UK
- St. Catherine’s College, Department of Zoology, University of Oxford, Oxford, UK
| | - Josh A Firth
- Edward Grey Institute of Field Ornithology, Department of Zoology, University of Oxford, Zoology Research and Administration Building, Oxford, UK
- Merton College, Oxford, UK
| | - Samantha C Patrick
- School of Environmental Sciences, University of Liverpool, Liverpool, UK
| | - Ella F Cole
- Edward Grey Institute of Field Ornithology, Department of Zoology, University of Oxford, Zoology Research and Administration Building, Oxford, UK
| | - Ben C Sheldon
- Edward Grey Institute of Field Ornithology, Department of Zoology, University of Oxford, Zoology Research and Administration Building, Oxford, UK
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19
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Hutfluss A, Dingemanse NJ. Human recreation reduces clutch size in great tits Parus major regardless of risk-taking personality. Behav Ecol 2019. [DOI: 10.1093/beheco/arz145] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AbstractRecreation negatively affects wildlife by influencing animal behavior vital to reproduction and survival. Such nonconsumptive effects of perceived predation risk are mainly studied in ground-breeding birds. However, if antipredator responses characterize bird species generally, so should nonconsumptive effects of perceived predation associated with human recreation. Moreover, as individuals consistently differ in behaviors linked to antipredator responses, they should also differ in responses to recreation, with bolder birds being less affected. To test this key prediction, we quantified effects of human recreation pressure on a cavity-breeding passerine. We uniquely quantified human recreation pressure over a substantial (8-year) period within 12 nest box populations of the great tit Parus major, assayed annually for reproductive parameters. We detected considerable spatial variation in recreation pressure. In plots with high recreation pressure, we found strong support for birds breeding further away from highly frequented paths and birds producing smaller clutches; we also found moderate support for birds producing fewer fledglings. These detrimental effects did not vary with behavioral proxies of an individual’s risk-taking phenotype (exploratory activity). This implies that effects of recreation pressure apply to the average bird, and extend to species (like forest birds) not previously considered.
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Affiliation(s)
- A Hutfluss
- Behavioural Ecology Group, Department of Biology, Ludwig-Maximilians University of Munich, Planegg-Martinsried, Munich, Germany
| | - N J Dingemanse
- Behavioural Ecology Group, Department of Biology, Ludwig-Maximilians University of Munich, Planegg-Martinsried, Munich, Germany
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20
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Mutzel A, Olsen AL, Mathot KJ, Araya-Ajoy YG, Nicolaus M, Wijmenga JJ, Wright J, Kempenaers B, Dingemanse NJ. Effects of manipulated levels of predation threat on parental provisioning and nestling begging. Behav Ecol 2019; 30:1123-1135. [PMID: 31289429 PMCID: PMC6606999 DOI: 10.1093/beheco/arz060] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 03/19/2019] [Accepted: 04/10/2019] [Indexed: 11/24/2022] Open
Abstract
Parental provisioning behavior is a major determinant of offspring growth and survival, but high provisioning rates might come at the cost of increased predation threat. Parents should thus adjust provisioning activity according to current predation threat levels. Moreover, life-history theory predicts that response to predation threat should be correlated with investment in current reproduction. We experimentally manipulated perceived predation threat in free-living great tits (Parus major) by presenting parents with a nest predator model while monitoring different aspects of provisioning behavior and nestling begging. Experiments were conducted in 2 years differing greatly in ecological conditions, including food availability. We further quantified male territorial aggressiveness and male and female exploratory tendency. Parents adjusted provisioning according to current levels of threat in an apparently adaptive way. They delayed nest visits during periods of elevated perceived predation threat and subsequently compensated for lost feeding opportunities by increasing provisioning once the immediate threat had diminished. Nestling begging increased after elevated levels of predation threat, but returned to baseline levels by the end of the experiment, suggesting that parents had fully compensated for lost feeding opportunities. There was no evidence for a link between male exploration behavior or aggressiveness and provisioning behavior. In contrast, fast-exploring females provisioned at higher rates, but only in the year with poor environmental conditions, which might indicate a greater willingness to invest in current reproduction in general. Future work should assess whether these personality-related differences in delivery rates under harsher conditions came at a cost of reduced residual reproductive value.
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Affiliation(s)
- Ariane Mutzel
- Research Group Evolutionary Ecology of Variation, Max Planck Institute for Ornithology, Seewiesen, Germany
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Seewiesen, Germany
| | - Anne-Lise Olsen
- Department of Biology, Center for Biodiversity Dynamics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Kimberley J Mathot
- Research Group Evolutionary Ecology of Variation, Max Planck Institute for Ornithology, Seewiesen, Germany
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Seewiesen, Germany
| | - Yimen G Araya-Ajoy
- Research Group Evolutionary Ecology of Variation, Max Planck Institute for Ornithology, Seewiesen, Germany
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Seewiesen, Germany
- Department of Biology, Center for Biodiversity Dynamics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Marion Nicolaus
- Research Group Evolutionary Ecology of Variation, Max Planck Institute for Ornithology, Seewiesen, Germany
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Seewiesen, Germany
| | - Jan J Wijmenga
- Research Group Evolutionary Ecology of Variation, Max Planck Institute for Ornithology, Seewiesen, Germany
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Seewiesen, Germany
| | - Jonathan Wright
- Department of Biology, Center for Biodiversity Dynamics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Bart Kempenaers
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Seewiesen, Germany
| | - Niels J Dingemanse
- Research Group Evolutionary Ecology of Variation, Max Planck Institute for Ornithology, Seewiesen, Germany
- Department of Biology, Behavioural Ecology, Ludwig Maximilian University of Munich (LMU), Planegg-Martinsried, Germany
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21
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Mathot KJ, Kok EMA, Burant JB, Dekinga A, Manche P, Saintonge D, Piersma T. Evolutionary design of a flexible, seasonally migratory, avian phenotype: why trade gizzard mass against pectoral muscle mass? Proc Biol Sci 2019; 286:20190518. [PMID: 31113330 PMCID: PMC6545091 DOI: 10.1098/rspb.2019.0518] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 04/29/2019] [Indexed: 11/12/2022] Open
Abstract
Migratory birds undergo impressive body remodelling over the course of an annual cycle. Prior to long-distance flights, red knots ( Calidris canutus islandica) reduce gizzard mass while increasing body mass and pectoral muscle mass. Although body mass and pectoral muscle mass are functionally linked via their joint effects on flight performance, gizzard and pectoral muscle mass are thought to be independently regulated. Current hypotheses for observed negative within-individual covariation between gizzard and pectoral muscle mass in free-living knots are based on a common factor (e.g. migration) simultaneously affecting both traits, and/or protein limitation forcing allocation decisions. We used diet manipulations to generate within-individual variation in gizzard mass and test for independence between gizzard and pectoral muscle mass within individuals outside the period of migration and under conditions of high protein availability. Contrary to our prediction, we observed a negative within-individual covariation between gizzard and pectoral muscle mass. We discuss this result as a potential outcome of an evolved mechanism underlying body remodelling associated with migration. Although our proposed mechanism requires empirical testing, this study echoes earlier calls for greater integration of studies of function and mechanism, and in particular, the need for more explicit consideration of the evolution of mechanisms underlying phenotypic design.
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Affiliation(s)
- Kimberley J. Mathot
- NIOZ Royal Netherlands Institute for Sea Research, Department of Coastal Systems and Utrecht University, 1790 AB den Burg, Texel, The Netherlands
- Canada Research Chair in Integrative Ecology, Department of Biological Sciences, University of Alberta, Edmonton, Canada
| | - Eva M. A. Kok
- NIOZ Royal Netherlands Institute for Sea Research, Department of Coastal Systems and Utrecht University, 1790 AB den Burg, Texel, The Netherlands
| | - Joseph B. Burant
- NIOZ Royal Netherlands Institute for Sea Research, Department of Coastal Systems and Utrecht University, 1790 AB den Burg, Texel, The Netherlands
- Department of Integrative Biology, University of Guelph, Guelph, Ontario, CanadaN1G 2W1
| | - Anne Dekinga
- NIOZ Royal Netherlands Institute for Sea Research, Department of Coastal Systems and Utrecht University, 1790 AB den Burg, Texel, The Netherlands
| | - Petra Manche
- NIOZ Royal Netherlands Institute for Sea Research, Department of Coastal Systems and Utrecht University, 1790 AB den Burg, Texel, The Netherlands
- Conservation Ecology Group, Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, PO Box 11103, 9700 CC Groningen, The Netherlands
| | - Darren Saintonge
- NIOZ Royal Netherlands Institute for Sea Research, Department of Coastal Systems and Utrecht University, 1790 AB den Burg, Texel, The Netherlands
| | - Theunis Piersma
- NIOZ Royal Netherlands Institute for Sea Research, Department of Coastal Systems and Utrecht University, 1790 AB den Burg, Texel, The Netherlands
- Rudi Drent Chair in Global Flyway Ecology, Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, PO Box 11103, 9700 CC Groningen, The Netherlands
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22
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Abbey-Lee RN, Dingemanse NJ. Adaptive individual variation in phenological responses to perceived predation levels. Nat Commun 2019; 10:1601. [PMID: 30962485 PMCID: PMC6453887 DOI: 10.1038/s41467-019-09138-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 02/21/2019] [Indexed: 11/23/2022] Open
Abstract
The adaptive evolution of timing of breeding (a component of phenology) in response to environmental change requires individual variation in phenotypic plasticity for selection to act upon. A major question is what processes generate this variation. Here we apply multi-year manipulations of perceived predation levels (PPL) in an avian predator-prey system, identifying phenotypic plasticity in phenology as a key component of alternative behavioral strategies with equal fitness payoffs. We show that under low-PPL, faster (versus slower) exploring birds breed late (versus early); the pattern is reversed under high-PPL, with breeding synchrony decreasing in conjunction. Timing of breeding affects reproductive success, yet behavioral types have equal fitness. The existence of alternative behavioral strategies thus explains variation in phenology and plasticity in reproductive behavior, which has implications for evolution in response to anthropogenic change. For phenotypic plasticity to evolve to a changing world, there must be variation in plasticity. Here, the authors show that whether great tits advance or delay breeding in response to perceived predation risk depends on their personality, linking variation in plasticity with that in personality.
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Affiliation(s)
- Robin N Abbey-Lee
- Research Group Evolutionary Ecology of Variation, Max Planck Institute for Ornithology, Eberhard-Gwinner-Str., 82319, Seewiesen, Germany.,IFM Biology, AVIAN Behavioural Genomics and Physiology Group, Linköping University, 58183, Linköping, Sweden
| | - Niels J Dingemanse
- Behavioural Ecology, Department of Biology, Ludwig Maximilians University of Munich, Großhaderner Str. 2, 82152, Planegg-Martinsried, Germany.
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23
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Wang D, Forstmeier W, Valcu M, Dingemanse NJ, Bulla M, Both C, Duckworth RA, Kiere LM, Karell P, Albrecht T, Kempenaers B. Scrutinizing assortative mating in birds. PLoS Biol 2019; 17:e3000156. [PMID: 30789896 PMCID: PMC6400405 DOI: 10.1371/journal.pbio.3000156] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 03/05/2019] [Accepted: 02/05/2019] [Indexed: 11/18/2022] Open
Abstract
It is often claimed that pair bonds preferentially form between individuals that resemble one another. Such assortative mating appears to be widespread throughout the animal kingdom. Yet it is unclear whether the apparent ubiquity of assortative mating arises primarily from mate choice (“like attracts like”), which can be constrained by same-sex competition for mates; from spatial or temporal separation; or from observer, reporting, publication, or search bias. Here, based on a conventional literature search, we find compelling meta-analytical evidence for size-assortative mating in birds (r = 0.178, 95% CI 0.142–0.215, 83 species, 35,591 pairs). However, our analyses reveal that this effect vanishes gradually with increased control of confounding factors. Specifically, the effect size decreased by 42% when we used previously unpublished data from nine long-term field studies, i.e., data free of reporting and publication bias (r = 0.103, 95% CI 0.074–0.132, eight species, 16,611 pairs). Moreover, in those data, assortative mating effectively disappeared when both partners were measured by independent observers or separately in space and time (mean r = 0.018, 95% CI −0.016–0.057). Likewise, we also found no evidence for assortative mating in a direct experimental test for mutual mate choice in captive populations of Zebra finches (r = −0.020, 95% CI −0.148–0.107, 1,414 pairs). These results highlight the importance of unpublished data in generating unbiased meta-analytical conclusions and suggest that the apparent ubiquity of assortative mating reported in the literature is overestimated and may not be driven by mate choice or mating competition for preferred mates. Human mate choice is characterized by assortative mating (‘like attracts like’) and similarity of partners is also often reported for birds. A meta-analysis of published and previously unpublished datasets shows that the reported assortative mating in birds may mostly reflect biases in estimation rather than mate choice. Research on mate choice in birds has attracted much attention, partly because many birds form monogamous pair bonds like humans do. Human mate choice is characterized by the phenomenon of “like attracts like,” meaning that partners resemble each other in multiple ways (“assortative mating”). Assortative mating is also frequently reported for birds, but it is unclear whether this in turn implies that birds also have preferences for a similar partner. Here, we show that a range of methodological issues may provide a simpler and more accurate explanation for the frequent observation of assortative mating in birds. First, studies that report assortative mating may achieve greater visibility than studies that yield no such finding. Hence, the scientific literature may be biased toward positive results. Second, in field studies, it is logistically impossible to measure all birds accurately and under standardized conditions. Hence, fluctuations in, for instance, environmental conditions may induce a spurious similarity between partners when these are measured together in space or time. After accounting for such methodological issues, we conclude that mate preferences for a similar partner may be less common than previously thought.
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Affiliation(s)
- Daiping Wang
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Seewiesen, Germany
| | - Wolfgang Forstmeier
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Seewiesen, Germany
- * E-mail:
| | - Mihai Valcu
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Seewiesen, Germany
| | - Niels J. Dingemanse
- Behavioural Ecology, Department of Biology, Ludwig Maximilians University of Munich, Planegg-Martinsried, Germany
| | - Martin Bulla
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Seewiesen, Germany
- NIOZ Royal Netherlands Institute for Sea Research, Department of Coastal Systems and Utrecht University, Den Burg, the Netherlands
- Department of Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká, Prague, Czech Republic
| | - Christiaan Both
- Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, the Netherlands
| | - Renée A. Duckworth
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, Arizona, United States of America
| | - Lynna Marie Kiere
- Center for the Study of Biodiversity and Conservation (CIByC), Autonomous University of the State of Morelos, Cuernavaca Morelos, Mexico
- Institute of Ecology, Department of Evolutionary Ecology, Universidad Nacional Autónoma de México, Mexico City, Distrito Federal, Mexico
| | - Patrik Karell
- Bioeconomy Research Team, Novia University of Applied Sciences, Raseborgsvägen, Ekenäs, Finland
| | - Tomáš Albrecht
- Institute of Vertebrate Biology of the Czech Academy of Sciences, Brno, and Faculty of Science, Charles University, Prague, Czech Republic
| | - Bart Kempenaers
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Seewiesen, Germany
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24
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Wright J, Bolstad GH, Araya-Ajoy YG, Dingemanse NJ. Life-history evolution under fluctuating density-dependent selection and the adaptive alignment of pace-of-life syndromes. Biol Rev Camb Philos Soc 2019; 94:230-247. [PMID: 30019372 DOI: 10.1111/brv.12451] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 06/16/2018] [Accepted: 06/22/2018] [Indexed: 01/24/2023]
Abstract
We present a novel perspective on life-history evolution that combines recent theoretical advances in fluctuating density-dependent selection with the notion of pace-of-life syndromes (POLSs) in behavioural ecology. These ideas posit phenotypic co-variation in life-history, physiological, morphological and behavioural traits as a continuum from the highly fecund, short-lived, bold, aggressive and highly dispersive 'fast' types at one end of the POLS to the less fecund, long-lived, cautious, shy, plastic and socially responsive 'slow' types at the other. We propose that such variation in life histories and the associated individual differences in behaviour can be explained through their eco-evolutionary dynamics with population density - a single and ubiquitous selective factor that is present in all biological systems. Contrasting regimes of environmental stochasticity are expected to affect population density in time and space and create differing patterns of fluctuating density-dependent selection, which generates variation in fast versus slow life histories within and among populations. We therefore predict that a major axis of phenotypic co-variation in life-history, physiological, morphological and behavioural traits (i.e. the POLS) should align with these stochastic fluctuations in the multivariate fitness landscape created by variation in density-dependent selection. Phenotypic plasticity and/or genetic (co-)variation oriented along this major POLS axis are thus expected to facilitate rapid and adaptively integrated changes in various aspects of life histories within and among populations and/or species. The fluctuating density-dependent selection POLS framework presented here therefore provides a series of clear testable predictions, the investigation of which should further our fundamental understanding of life-history evolution and thus our ability to predict natural population dynamics.
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Affiliation(s)
- Jonathan Wright
- Department of Biology, Centre for Biodiversity Dynamics (CBD), Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
| | - Geir H Bolstad
- Norwegian Institute for Nature Research (NINA), N-7485 Trondheim, Norway
| | - Yimen G Araya-Ajoy
- Department of Biology, Centre for Biodiversity Dynamics (CBD), Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
| | - Niels J Dingemanse
- Behavioural Ecology, Department of Biology, Ludwig Maximilian University of Munich (LMU), 82152 Planegg-Martinsried, Germany
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Moiron M, Araya-Ajoy YG, Mathot KJ, Mouchet A, Dingemanse NJ. Functional relations between body mass and risk-taking behavior in wild great tits. Behav Ecol 2019. [DOI: 10.1093/beheco/ary199] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Maria Moiron
- Behavioural Ecology, Department of Biology, Ludwig Maximilians University of Munich, Großhaderner, Planegg-Martinsried, Germany
- Evolutionary Ecology of Variation Group, Max Planck Institute for Ornithology, Seewiesen, Germany
| | - Yimen G Araya-Ajoy
- Centre for Biodiversity Dynamics (CBD), Department of Biology, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Kimberley J Mathot
- Canada Research Chair in Integrative Ecology, Department of Biological Sciences, University of Alberta, Edmonton, Canada
| | - Alexia Mouchet
- Behavioural Ecology, Department of Biology, Ludwig Maximilians University of Munich, Großhaderner, Planegg-Martinsried, Germany
| | - Niels J Dingemanse
- Behavioural Ecology, Department of Biology, Ludwig Maximilians University of Munich, Großhaderner, Planegg-Martinsried, Germany
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Moiron M, Mathot KJ, Dingemanse NJ. To eat and not be eaten: diurnal mass gain and foraging strategies in wintering great tits. Proc Biol Sci 2019. [PMID: 29540518 DOI: 10.1098/rspb.2017.2868] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Adaptive theory predicts that the fundamental trade-off between starvation and predation risk shapes diurnal patterns in foraging activity and mass gain in wintering passerine birds. Foragers mitigating both types of risk should exhibit a bimodal distribution (increased foraging and mass gain early and late in the day), whereas both foraging and mass gains early (versus late) during the day are expected when the risk of starvation (versus predation) is greatest. Finally, relatively constant rates of foraging and mass gain should occur when the starvation-predation risk trade-off is independent of body mass. Using automated feeders with integrated digital balances, we estimated diurnal patterns in foraging and body mass gain to test which ecological scenario was best supported in wintering great tits Parus major Based on data of 40 consecutive winter days recording over 12 000 body masses of 28 individuals, we concluded that birds foraged and gained mass early during the day, as predicted by theory when the starvation-predation risk trade-off is mass-dependent and starvation risk outweighs predation risk. Slower explorers visited the feeders more often, and decreased their activity along the day more strongly, compared with faster explorers, thereby explaining a major portion of the individual differences in diurnal patterning of foraging activity detected using random regression analyses. Birds did not differ in body mass gain trajectories, implying both that individuals differed in the usage of feeders, and that unbiased conclusions regarding how birds resolve starvation-predation risk trade-off require the simultaneous recording of foraging activity and body mass gain trajectories. Our study thereby provides the first unambiguous demonstration that individual birds are capable of adjusting their diurnal foraging and mass gain trajectories in response to ecological predictors of starvation risk as predicted by starvation-predation risk trade-off theory.
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Affiliation(s)
- Maria Moiron
- Research Group Evolutionary Ecology of Variation, Max Planck Institute for Ornithology, Seewiesen, Germany .,Behavioural Ecology, Department of Biology, Ludwig-Maximilians University of Munich, Planegg-Martinsried, Germany
| | - Kimberley J Mathot
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada T6J 2E9
| | - Niels J Dingemanse
- Behavioural Ecology, Department of Biology, Ludwig-Maximilians University of Munich, Planegg-Martinsried, Germany
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Maldonado-Chaparro AA, Montiglio PO, Forstmeier W, Kempenaers B, Farine DR. Linking the fine-scale social environment to mating decisions: a future direction for the study of extra-pair paternity. Biol Rev Camb Philos Soc 2018. [DOI: 10.1111/brv.12408] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Adriana A. Maldonado-Chaparro
- Department of Collective Behaviour, Max Planck Institute for Ornithology; Universitätsstrasse 10; 78457 Konstanz Germany
- Chair of Biodiversity and Collective Behaviour, Department of Biology; University of Konstanz; Universitätsstrasse 10, 78457 Konstanz Germany
| | - Pierre-Olivier Montiglio
- Department of Biology & Redpath Museum; McGill University; 1205 Dr Penfield Avenue, Montreal, Quebec H3A 1B1 Canada
| | - Wolfgang Forstmeier
- Department of Behavioural Ecology and Evolutionary Genetics; Max Planck Institute for Ornithology; 82319 Seewiesen Germany
| | - Bart Kempenaers
- Department of Behavioural Ecology and Evolutionary Genetics; Max Planck Institute for Ornithology; 82319 Seewiesen Germany
| | - Damien R. Farine
- Department of Collective Behaviour, Max Planck Institute for Ornithology; Universitätsstrasse 10; 78457 Konstanz Germany
- Chair of Biodiversity and Collective Behaviour, Department of Biology; University of Konstanz; Universitätsstrasse 10, 78457 Konstanz Germany
- Edward Grey Institute of Field Ornithology, Department of Zoology; University of Oxford; South Parks Road, Oxford OX1 3PS U.K
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Abbey‐Lee RN, Araya‐Ajoy YG, Mouchet A, Moiron M, Stuber EF, Kempenaers B, Dingemanse NJ. Does perceived predation risk affect patterns of extra‐pair paternity? A field experiment in a passerine bird. Funct Ecol 2018. [DOI: 10.1111/1365-2435.13052] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Robin N. Abbey‐Lee
- Research Group Evolutionary Ecology of VariationMax Planck Institute for Ornithology Seewiesen Germany
| | - Yimen G. Araya‐Ajoy
- Center for Biodiversity DynamicsNorwegian University of Science and Technology Trondheim Norway
| | - Alexia Mouchet
- Research Group Evolutionary Ecology of VariationMax Planck Institute for Ornithology Seewiesen Germany
| | - Maria Moiron
- Research Group Evolutionary Ecology of VariationMax Planck Institute for Ornithology Seewiesen Germany
| | - Erica F. Stuber
- School of Natural ResourcesUniversity of Nebraska‐Lincoln Lincoln NE USA
| | - Bart Kempenaers
- Department of Behavioral Ecology and Evolutionary GeneticsMax Planck Institute for Ornithology Seewiesen Germany
| | - Niels J. Dingemanse
- Research Group Evolutionary Ecology of VariationMax Planck Institute for Ornithology Seewiesen Germany
- Behavioural EcologyDepartment of BiologyLudwig‐Maximilians University of Munich Planegg‐Martinsried Germany
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Serrano-Davies E, Araya-Ajoy YG, Dingemanse NJ, Sanz JJ. Personality-related differences in response to habitat in Mediterranean blue tits. Ethology 2017. [DOI: 10.1111/eth.12656] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Eva Serrano-Davies
- Department of Environmental Sciences and Biochemistry; University of Castilla-La Mancha (UCLM); Toledo Spain
| | - Yimen G. Araya-Ajoy
- Department of Biology; Center for Biodiversity Dynamics; Norwegian University of Science and Technology (NTNU); Trondheim Norway
| | - Niels J. Dingemanse
- Department of Biology II Behavioural Ecology; Ludwig Maximilians University of Munich (LMU); Planegg-Martinsried Germany
| | - Juan José Sanz
- Department of Evolutionary Ecology; National Museum of Natural Sciences (MNCN-CSIC); Madrid Spain
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Sprau P, Dingemanse NJ. An Approach to Distinguish between Plasticity and Non-random Distributions of Behavioral Types Along Urban Gradients in a Wild Passerine Bird. Front Ecol Evol 2017. [DOI: 10.3389/fevo.2017.00092] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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31
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Niemelä PT, Dingemanse NJ. Individual versus pseudo-repeatability in behaviour: Lessons from translocation experiments in a wild insect. J Anim Ecol 2017; 86:1033-1043. [DOI: 10.1111/1365-2656.12688] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 04/15/2017] [Indexed: 01/23/2023]
Affiliation(s)
- Petri T. Niemelä
- Behavioural Ecology; Department of Biology; Ludwig-Maximilians University of Munich; Planegg-Martinsried Germany
| | - Niels J. Dingemanse
- Behavioural Ecology; Department of Biology; Ludwig-Maximilians University of Munich; Planegg-Martinsried Germany
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32
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Dingemanse NJ. The role of personality research in contemporary behavioral ecology: a comment on Beekman and Jordan. Behav Ecol 2017. [DOI: 10.1093/beheco/arx027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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33
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Araya-Ajoy YG, Dingemanse NJ. Repeatability, heritability, and age-dependence of seasonal plasticity in aggressiveness in a wild passerine bird. J Anim Ecol 2017; 86:227-238. [DOI: 10.1111/1365-2656.12621] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 11/24/2016] [Indexed: 02/06/2023]
Affiliation(s)
- Yimen G. Araya-Ajoy
- Research Group Evolutionary Ecology of Variation; Max Planck Institute for Ornithology; Seewiesen Germany
- Center for Biodiversity Dynamics; Norwegian University of Science and Technology; Trondheim Norway
| | - Niels J. Dingemanse
- Research Group Evolutionary Ecology of Variation; Max Planck Institute for Ornithology; Seewiesen Germany
- Behavioural Ecology; Department of Biology; Ludwig-Maximilians University of Munich; Planegg-Martinsried Germany
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Sprau P, Mouchet A, Dingemanse NJ. Multidimensional environmental predictors of variation in avian forest and city life histories. Behav Ecol 2016. [DOI: 10.1093/beheco/arw130] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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