Fitness, risk taking, and spatial behavior covary with boldness in experimental vole populations
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...
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crwiley:10.1002/ece3.8521 2024-09-15T18:18:47+00:00 Fitness, risk taking, and spatial behavior covary with boldness in experimental vole populations Eccard, Jana A. Herde, Antje Schuster, Andrea C. Liesenjohann, Thilo Knopp, Tatjana Heckel, Gerald Dammhahn, Melanie Deutsche Forschungsgemeinschaft 2022 http://dx.doi.org/10.1002/ece3.8521 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.8521 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ece3.8521 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Ecology and Evolution volume 12, issue 2 ISSN 2045-7758 2045-7758 journal-article 2022 crwiley https://doi.org/10.1002/ece3.8521 2024-08-30T04:11:27Z 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, ... Article in Journal/Newspaper Microtus arvalis Wiley Online Library Ecology and Evolution 12 2 |
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Wiley Online Library |
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English |
description |
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, ... |
author2 |
Deutsche Forschungsgemeinschaft |
format |
Article in Journal/Newspaper |
author |
Eccard, Jana A. Herde, Antje Schuster, Andrea C. Liesenjohann, Thilo Knopp, Tatjana Heckel, Gerald Dammhahn, Melanie |
spellingShingle |
Eccard, Jana A. Herde, Antje Schuster, Andrea C. Liesenjohann, Thilo Knopp, Tatjana Heckel, Gerald Dammhahn, Melanie Fitness, risk taking, and spatial behavior covary with boldness in experimental vole populations |
author_facet |
Eccard, Jana A. Herde, Antje Schuster, Andrea C. Liesenjohann, Thilo Knopp, Tatjana Heckel, Gerald Dammhahn, Melanie |
author_sort |
Eccard, Jana A. |
title |
Fitness, risk taking, and spatial behavior covary with boldness in experimental vole populations |
title_short |
Fitness, risk taking, and spatial behavior covary with boldness in experimental vole populations |
title_full |
Fitness, risk taking, and spatial behavior covary with boldness in experimental vole populations |
title_fullStr |
Fitness, risk taking, and spatial behavior covary with boldness in experimental vole populations |
title_full_unstemmed |
Fitness, risk taking, and spatial behavior covary with boldness in experimental vole populations |
title_sort |
fitness, risk taking, and spatial behavior covary with boldness in experimental vole populations |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/ece3.8521 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.8521 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ece3.8521 |
genre |
Microtus arvalis |
genre_facet |
Microtus arvalis |
op_source |
Ecology and Evolution volume 12, issue 2 ISSN 2045-7758 2045-7758 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/ece3.8521 |
container_title |
Ecology and Evolution |
container_volume |
12 |
container_issue |
2 |
_version_ |
1810456866334965760 |