Data from: Environmental quality predicts optimal egg size in the wild
Parents can maximize their reproductive success by balancing the trade-off between investment per offspring and fecundity. According to theory, environmental quality influences the relationship between investment per offspring and offspring fitness, such that well-provisioned offspring fare better w...
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Online Access: | https://doi.org/10.5061/dryad.0q13g |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::a9a51b347a5fbad9cd916f1a9b9307f8 2023-05-15T15:30:40+02:00 Data from: Environmental quality predicts optimal egg size in the wild Rollinson, Njal Hutchings, Jeffrey A. 2020-06-26 https://doi.org/10.5061/dryad.0q13g undefined unknown Dryad https://dx.doi.org/10.5061/dryad.0q13g http://dx.doi.org/10.5061/dryad.0q13g lic_creative-commons 10.5061/dryad.0q13g oai:easy.dans.knaw.nl:easy-dataset:83253 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:83253 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c Reproduction: investment 2009 maternal effects Salmo salar Resource allocation Life history: theory Life history: trade offs Fitness Stewiacke River Economy River Great Village River Nova Scotia 45.37 N -63.27 W Life sciences medicine and health care envir eco Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2020 fttriple https://doi.org/10.5061/dryad.0q13g 2023-01-22T16:51:52Z Parents can maximize their reproductive success by balancing the trade-off between investment per offspring and fecundity. According to theory, environmental quality influences the relationship between investment per offspring and offspring fitness, such that well-provisioned offspring fare better when environmental quality is lower. A major prediction of classic theory, then, is that optimal investment per offspring will increase as environmental quality decreases. To test this prediction, we release over 30,000 juvenile Atlantic salmon (Salmo salar) into eight wild stream environments, and we monitor subsequent growth and survival of juveniles. We estimate the shape of the relationship between investment per offspring (egg size) and offspring fitness in each stream. We find that optimal egg size is greater when the quality of the stream environment is lower (as estimated by a composite index of habitat quality). Across streams, the mean size of stream gravel and the mean amount of incident sunlight are the most important individual predictors of optimal egg size. Within streams, juveniles recaptured in stream subsections that featured larger gravels and greater levels of sunlight also grew relatively quickly, an association that complements our cross-stream analyses. This study provides the first empirical verification that environmental quality alters the relationship between investment per offspring and offspring fitness, such that optimal investment per offspring increases as environmental quality decreases. Economy_ReleasesRelease and recapture data for juvenile Atlantic salmon released in all streams in the Economy River. See Excel file for a description of column headers.Stewiacke_ReleasesRelease and recapture data for juvenile Atlantic salmon released in streams in the Stewiacke River. See Excel file for details on column headings.GreatVillage_ReleasesRelease and recapture data for all juvenile Atlantic salmon released into streams in the Great Village River. See Excel file for a description of column ... Dataset Atlantic salmon Salmo salar Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Reproduction: investment 2009 maternal effects Salmo salar Resource allocation Life history: theory Life history: trade offs Fitness Stewiacke River Economy River Great Village River Nova Scotia 45.37 N -63.27 W Life sciences medicine and health care envir eco |
spellingShingle |
Reproduction: investment 2009 maternal effects Salmo salar Resource allocation Life history: theory Life history: trade offs Fitness Stewiacke River Economy River Great Village River Nova Scotia 45.37 N -63.27 W Life sciences medicine and health care envir eco Rollinson, Njal Hutchings, Jeffrey A. Data from: Environmental quality predicts optimal egg size in the wild |
topic_facet |
Reproduction: investment 2009 maternal effects Salmo salar Resource allocation Life history: theory Life history: trade offs Fitness Stewiacke River Economy River Great Village River Nova Scotia 45.37 N -63.27 W Life sciences medicine and health care envir eco |
description |
Parents can maximize their reproductive success by balancing the trade-off between investment per offspring and fecundity. According to theory, environmental quality influences the relationship between investment per offspring and offspring fitness, such that well-provisioned offspring fare better when environmental quality is lower. A major prediction of classic theory, then, is that optimal investment per offspring will increase as environmental quality decreases. To test this prediction, we release over 30,000 juvenile Atlantic salmon (Salmo salar) into eight wild stream environments, and we monitor subsequent growth and survival of juveniles. We estimate the shape of the relationship between investment per offspring (egg size) and offspring fitness in each stream. We find that optimal egg size is greater when the quality of the stream environment is lower (as estimated by a composite index of habitat quality). Across streams, the mean size of stream gravel and the mean amount of incident sunlight are the most important individual predictors of optimal egg size. Within streams, juveniles recaptured in stream subsections that featured larger gravels and greater levels of sunlight also grew relatively quickly, an association that complements our cross-stream analyses. This study provides the first empirical verification that environmental quality alters the relationship between investment per offspring and offspring fitness, such that optimal investment per offspring increases as environmental quality decreases. Economy_ReleasesRelease and recapture data for juvenile Atlantic salmon released in all streams in the Economy River. See Excel file for a description of column headers.Stewiacke_ReleasesRelease and recapture data for juvenile Atlantic salmon released in streams in the Stewiacke River. See Excel file for details on column headings.GreatVillage_ReleasesRelease and recapture data for all juvenile Atlantic salmon released into streams in the Great Village River. See Excel file for a description of column ... |
format |
Dataset |
author |
Rollinson, Njal Hutchings, Jeffrey A. |
author_facet |
Rollinson, Njal Hutchings, Jeffrey A. |
author_sort |
Rollinson, Njal |
title |
Data from: Environmental quality predicts optimal egg size in the wild |
title_short |
Data from: Environmental quality predicts optimal egg size in the wild |
title_full |
Data from: Environmental quality predicts optimal egg size in the wild |
title_fullStr |
Data from: Environmental quality predicts optimal egg size in the wild |
title_full_unstemmed |
Data from: Environmental quality predicts optimal egg size in the wild |
title_sort |
data from: environmental quality predicts optimal egg size in the wild |
publisher |
Dryad |
publishDate |
2020 |
url |
https://doi.org/10.5061/dryad.0q13g |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
10.5061/dryad.0q13g oai:easy.dans.knaw.nl:easy-dataset:83253 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:83253 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
https://dx.doi.org/10.5061/dryad.0q13g http://dx.doi.org/10.5061/dryad.0q13g |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.0q13g |
_version_ |
1766361122756100096 |