Data from: Harvesting changes mating behavior in European lobster
Removing individuals from a wild population can affect the availability of prospective mates and the outcome of competitive interactions, with subsequent effects on mating patterns and sexual selection. Consequently, the rate of harvest-induced evolution is predicted to be strongly dependent on the...
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ftdryad:oai:v1.datadryad.org:10255/dryad.171153 2023-05-15T16:08:47+02:00 Data from: Harvesting changes mating behavior in European lobster Sørdalen, Tonje K. Halvorsen, Kim T. Harrison, Hugo B. Ellis, Charlie D. Vøllestad, Leif Asbjørn Knutsen, Halvor Moland, Even Olsen, Esben M. 2018-02-07T21:26:18Z http://hdl.handle.net/10255/dryad.171153 https://doi.org/10.5061/dryad.1b1f023 unknown doi:10.5061/dryad.1b1f023/1 doi:10.5061/dryad.1b1f023/2 doi:10.1111/eva.12611 doi:10.5061/dryad.1b1f023 Sørdalen TK, Halvorsen KT, Harrison HB, Ellis CD, Vøllestad LA, Knutsen H, Moland E, Olsen EM (2018) Harvesting changes mating behaviour in European lobster. Evolutionary Applications 11(6): 963-977. http://hdl.handle.net/10255/dryad.171153 Assortative mating parentage analysis marine protected area (MPA) mating behavior Sexual Selection Article 2018 ftdryad https://doi.org/10.5061/dryad.1b1f023 https://doi.org/10.5061/dryad.1b1f023/1 https://doi.org/10.5061/dryad.1b1f023/2 https://doi.org/10.1111/eva.12611 2020-01-01T16:04:36Z Removing individuals from a wild population can affect the availability of prospective mates and the outcome of competitive interactions, with subsequent effects on mating patterns and sexual selection. Consequently, the rate of harvest-induced evolution is predicted to be strongly dependent on the strength and dynamics of sexual selection yet, there is limited empirical knowledge on the interplay between selective harvesting and the mating systems of exploited species. In this study, we used genetic parentage assignment to compare mating patterns of the highly valued and overexploited European lobster (Homarus gammarus) in a designated lobster reserve and nearby fished area in Southern Norway. In the area open to fishing, the fishery is regulated by a closed season, a minimum legal size and a ban on the harvest of egg-bearing females. Due to the differences in size and sex-specific fishing mortality between the two areas, males and females are of approximately equal average size in the fished area, whereas males tend to be larger in the reserve. Our results show that females would mate with males larger than their own body size, but the relative size difference was significantly larger in the reserve. Sexual selection acted positively on both body size and claw size in males in the reserve, while it was non-significant in fished areas. This strongly suggests that size truncation of males by fishing reduces the variability of traits that sexual selection acts upon. If fisheries continue to target large individuals (particularly males) with higher relative reproductive success, the weakening of sexual selection will likely accelerate fisheries-induced evolution towards smaller body size. Article in Journal/Newspaper European lobster Homarus gammarus Dryad Digital Repository (Duke University) Norway |
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Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
Assortative mating parentage analysis marine protected area (MPA) mating behavior Sexual Selection |
spellingShingle |
Assortative mating parentage analysis marine protected area (MPA) mating behavior Sexual Selection Sørdalen, Tonje K. Halvorsen, Kim T. Harrison, Hugo B. Ellis, Charlie D. Vøllestad, Leif Asbjørn Knutsen, Halvor Moland, Even Olsen, Esben M. Data from: Harvesting changes mating behavior in European lobster |
topic_facet |
Assortative mating parentage analysis marine protected area (MPA) mating behavior Sexual Selection |
description |
Removing individuals from a wild population can affect the availability of prospective mates and the outcome of competitive interactions, with subsequent effects on mating patterns and sexual selection. Consequently, the rate of harvest-induced evolution is predicted to be strongly dependent on the strength and dynamics of sexual selection yet, there is limited empirical knowledge on the interplay between selective harvesting and the mating systems of exploited species. In this study, we used genetic parentage assignment to compare mating patterns of the highly valued and overexploited European lobster (Homarus gammarus) in a designated lobster reserve and nearby fished area in Southern Norway. In the area open to fishing, the fishery is regulated by a closed season, a minimum legal size and a ban on the harvest of egg-bearing females. Due to the differences in size and sex-specific fishing mortality between the two areas, males and females are of approximately equal average size in the fished area, whereas males tend to be larger in the reserve. Our results show that females would mate with males larger than their own body size, but the relative size difference was significantly larger in the reserve. Sexual selection acted positively on both body size and claw size in males in the reserve, while it was non-significant in fished areas. This strongly suggests that size truncation of males by fishing reduces the variability of traits that sexual selection acts upon. If fisheries continue to target large individuals (particularly males) with higher relative reproductive success, the weakening of sexual selection will likely accelerate fisheries-induced evolution towards smaller body size. |
format |
Article in Journal/Newspaper |
author |
Sørdalen, Tonje K. Halvorsen, Kim T. Harrison, Hugo B. Ellis, Charlie D. Vøllestad, Leif Asbjørn Knutsen, Halvor Moland, Even Olsen, Esben M. |
author_facet |
Sørdalen, Tonje K. Halvorsen, Kim T. Harrison, Hugo B. Ellis, Charlie D. Vøllestad, Leif Asbjørn Knutsen, Halvor Moland, Even Olsen, Esben M. |
author_sort |
Sørdalen, Tonje K. |
title |
Data from: Harvesting changes mating behavior in European lobster |
title_short |
Data from: Harvesting changes mating behavior in European lobster |
title_full |
Data from: Harvesting changes mating behavior in European lobster |
title_fullStr |
Data from: Harvesting changes mating behavior in European lobster |
title_full_unstemmed |
Data from: Harvesting changes mating behavior in European lobster |
title_sort |
data from: harvesting changes mating behavior in european lobster |
publishDate |
2018 |
url |
http://hdl.handle.net/10255/dryad.171153 https://doi.org/10.5061/dryad.1b1f023 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
European lobster Homarus gammarus |
genre_facet |
European lobster Homarus gammarus |
op_relation |
doi:10.5061/dryad.1b1f023/1 doi:10.5061/dryad.1b1f023/2 doi:10.1111/eva.12611 doi:10.5061/dryad.1b1f023 Sørdalen TK, Halvorsen KT, Harrison HB, Ellis CD, Vøllestad LA, Knutsen H, Moland E, Olsen EM (2018) Harvesting changes mating behaviour in European lobster. Evolutionary Applications 11(6): 963-977. http://hdl.handle.net/10255/dryad.171153 |
op_doi |
https://doi.org/10.5061/dryad.1b1f023 https://doi.org/10.5061/dryad.1b1f023/1 https://doi.org/10.5061/dryad.1b1f023/2 https://doi.org/10.1111/eva.12611 |
_version_ |
1766404806736347136 |