Bergmann patterns in planktivorous fishes: A light‐size or zooplankton community‐size rule is just as valid explanation as the temperature‐size rule
Abstract Aim Bergman patterns, the tendency of organisms to be larger at higher latitudes and lower temperatures, are a well‐studied biogeographic pattern. Yet, there is no consensus on the driver or underlying mechanisms. We aim to scrutinize the influence of several key proposed drivers of Bergman...
Published in: | Global Ecology and Biogeography |
---|---|
Main Authors: | , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2023
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/geb.13782 https://onlinelibrary.wiley.com/doi/pdf/10.1111/geb.13782 |
id |
crwiley:10.1111/geb.13782 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/geb.13782 2024-06-02T08:11:56+00:00 Bergmann patterns in planktivorous fishes: A light‐size or zooplankton community‐size rule is just as valid explanation as the temperature‐size rule Ljungström, Gabriella Langbehn, Tom Jørgensen, Christian H2020 Marie Skłodowska-Curie Actions Norges Forskningsråd 2023 http://dx.doi.org/10.1111/geb.13782 https://onlinelibrary.wiley.com/doi/pdf/10.1111/geb.13782 en eng Wiley http://creativecommons.org/licenses/by-nc/4.0/ Global Ecology and Biogeography volume 33, issue 1, page 17-33 ISSN 1466-822X 1466-8238 journal-article 2023 crwiley https://doi.org/10.1111/geb.13782 2024-05-03T10:59:24Z Abstract Aim Bergman patterns, the tendency of organisms to be larger at higher latitudes and lower temperatures, are a well‐studied biogeographic pattern. Yet, there is no consensus on the driver or underlying mechanisms. We aim to scrutinize the influence of several key proposed drivers of Bergmann patterns (temperature, seasonal light availability, prey size and seasonal abundance) on optimal body size in planktivorous fishes across high latitudes in the Northeast Atlantic. Location Northeast Atlantic between 55 and 75° N, with implications for high‐latitude oceans globally. Time period Present day. Major taxa studied Pelagic planktivorous fishes, with Atlantic herring ( Clupea harengus ) as model organism. Methods We use a model that incorporates explicit mechanisms for vision‐based feeding and temperature‐dependent physiology of a planktivorous fish to explore how intrinsic and extrinsic constraints affect energy budgeting and thereby expected optimal body size based on bioenergetics. We run the model at latitudes with increasing seasonality and test the individual and joint effects of relevant drivers. Results A Bergmann pattern emerges from the interaction between visual feeding opportunities and temperature‐dependent physiology. Small individuals profit from faster energy processing at higher temperatures in the south, whereas large individuals benefit from a lower metabolic cost at colder temperatures and more daylight hours for feeding in the north. In isolation temperature, daylight hours, and prey size each produced Bergmann patterns, but the most pronounced pattern arose from all drivers combined. Main conclusions Studying biogeographic body size patterns requires a holistic view, accounting for interactions between drivers and both intrinsic and extrinsic constraints on energy budgeting. Across latitudes, temperature effects on digestion and metabolism interact with effects of light availability, prey size and abundance on food accessibility, and thereby shape the optimal size. Our study highlights ... Article in Journal/Newspaper Northeast Atlantic Wiley Online Library Global Ecology and Biogeography 33 1 17 33 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Aim Bergman patterns, the tendency of organisms to be larger at higher latitudes and lower temperatures, are a well‐studied biogeographic pattern. Yet, there is no consensus on the driver or underlying mechanisms. We aim to scrutinize the influence of several key proposed drivers of Bergmann patterns (temperature, seasonal light availability, prey size and seasonal abundance) on optimal body size in planktivorous fishes across high latitudes in the Northeast Atlantic. Location Northeast Atlantic between 55 and 75° N, with implications for high‐latitude oceans globally. Time period Present day. Major taxa studied Pelagic planktivorous fishes, with Atlantic herring ( Clupea harengus ) as model organism. Methods We use a model that incorporates explicit mechanisms for vision‐based feeding and temperature‐dependent physiology of a planktivorous fish to explore how intrinsic and extrinsic constraints affect energy budgeting and thereby expected optimal body size based on bioenergetics. We run the model at latitudes with increasing seasonality and test the individual and joint effects of relevant drivers. Results A Bergmann pattern emerges from the interaction between visual feeding opportunities and temperature‐dependent physiology. Small individuals profit from faster energy processing at higher temperatures in the south, whereas large individuals benefit from a lower metabolic cost at colder temperatures and more daylight hours for feeding in the north. In isolation temperature, daylight hours, and prey size each produced Bergmann patterns, but the most pronounced pattern arose from all drivers combined. Main conclusions Studying biogeographic body size patterns requires a holistic view, accounting for interactions between drivers and both intrinsic and extrinsic constraints on energy budgeting. Across latitudes, temperature effects on digestion and metabolism interact with effects of light availability, prey size and abundance on food accessibility, and thereby shape the optimal size. Our study highlights ... |
author2 |
H2020 Marie Skłodowska-Curie Actions Norges Forskningsråd |
format |
Article in Journal/Newspaper |
author |
Ljungström, Gabriella Langbehn, Tom Jørgensen, Christian |
spellingShingle |
Ljungström, Gabriella Langbehn, Tom Jørgensen, Christian Bergmann patterns in planktivorous fishes: A light‐size or zooplankton community‐size rule is just as valid explanation as the temperature‐size rule |
author_facet |
Ljungström, Gabriella Langbehn, Tom Jørgensen, Christian |
author_sort |
Ljungström, Gabriella |
title |
Bergmann patterns in planktivorous fishes: A light‐size or zooplankton community‐size rule is just as valid explanation as the temperature‐size rule |
title_short |
Bergmann patterns in planktivorous fishes: A light‐size or zooplankton community‐size rule is just as valid explanation as the temperature‐size rule |
title_full |
Bergmann patterns in planktivorous fishes: A light‐size or zooplankton community‐size rule is just as valid explanation as the temperature‐size rule |
title_fullStr |
Bergmann patterns in planktivorous fishes: A light‐size or zooplankton community‐size rule is just as valid explanation as the temperature‐size rule |
title_full_unstemmed |
Bergmann patterns in planktivorous fishes: A light‐size or zooplankton community‐size rule is just as valid explanation as the temperature‐size rule |
title_sort |
bergmann patterns in planktivorous fishes: a light‐size or zooplankton community‐size rule is just as valid explanation as the temperature‐size rule |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1111/geb.13782 https://onlinelibrary.wiley.com/doi/pdf/10.1111/geb.13782 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Global Ecology and Biogeography volume 33, issue 1, page 17-33 ISSN 1466-822X 1466-8238 |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1111/geb.13782 |
container_title |
Global Ecology and Biogeography |
container_volume |
33 |
container_issue |
1 |
container_start_page |
17 |
op_container_end_page |
33 |
_version_ |
1800758227565019136 |