Cargando…
Mismatch in microbial food webs: predators but not prey perform better in their local biotic and abiotic conditions
Understanding how trophic levels respond to changes in abiotic and biotic conditions is key for predicting how food webs will react to environmental perturbations. Different trophic levels may respond disproportionately to change, with lower levels more likely to react faster, as they typically cons...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2016
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4979714/ https://www.ncbi.nlm.nih.gov/pubmed/27547320 http://dx.doi.org/10.1002/ece3.2236 |
_version_ | 1782447360569245696 |
---|---|
author | Parain, Elodie C. Gravel, Dominique Rohr, Rudolf P. Bersier, Louis‐Félix Gray, Sarah M. |
author_facet | Parain, Elodie C. Gravel, Dominique Rohr, Rudolf P. Bersier, Louis‐Félix Gray, Sarah M. |
author_sort | Parain, Elodie C. |
collection | PubMed |
description | Understanding how trophic levels respond to changes in abiotic and biotic conditions is key for predicting how food webs will react to environmental perturbations. Different trophic levels may respond disproportionately to change, with lower levels more likely to react faster, as they typically consist of smaller‐bodied species with higher reproductive rates. This response could cause a mismatch between trophic levels, in which predators and prey will respond differently to changing abiotic or biotic conditions. This mismatch between trophic levels could result in altered top‐down and bottom‐up control and changes in interaction strength. To determine the possibility of a mismatch, we conducted a reciprocal‐transplant experiment involving Sarracenia purpurea food webs consisting of bacterial communities as prey and a subset of six morphologically similar protozoans as predators. We used a factorial design with four temperatures, four bacteria and protozoan biogeographic origins, replicated four times. This design allowed us to determine how predator and prey dynamics were altered by abiotic (temperature) conditions and biotic (predators paired with prey from either their local or non‐local biogeographic origin) conditions. We found that prey reached higher densities in warmer temperature regardless of their temperature of origin. Conversely, predators achieved higher densities in the temperature condition and with the prey from their origin. These results confirm that predators perform better in abiotic and biotic conditions of their origin while their prey do not. This mismatch between trophic levels may be especially significant under climate change, potentially disrupting ecosystem functioning by disproportionately affecting top‐down and bottom‐up control. |
format | Online Article Text |
id | pubmed-4979714 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-49797142016-08-19 Mismatch in microbial food webs: predators but not prey perform better in their local biotic and abiotic conditions Parain, Elodie C. Gravel, Dominique Rohr, Rudolf P. Bersier, Louis‐Félix Gray, Sarah M. Ecol Evol Original Research Understanding how trophic levels respond to changes in abiotic and biotic conditions is key for predicting how food webs will react to environmental perturbations. Different trophic levels may respond disproportionately to change, with lower levels more likely to react faster, as they typically consist of smaller‐bodied species with higher reproductive rates. This response could cause a mismatch between trophic levels, in which predators and prey will respond differently to changing abiotic or biotic conditions. This mismatch between trophic levels could result in altered top‐down and bottom‐up control and changes in interaction strength. To determine the possibility of a mismatch, we conducted a reciprocal‐transplant experiment involving Sarracenia purpurea food webs consisting of bacterial communities as prey and a subset of six morphologically similar protozoans as predators. We used a factorial design with four temperatures, four bacteria and protozoan biogeographic origins, replicated four times. This design allowed us to determine how predator and prey dynamics were altered by abiotic (temperature) conditions and biotic (predators paired with prey from either their local or non‐local biogeographic origin) conditions. We found that prey reached higher densities in warmer temperature regardless of their temperature of origin. Conversely, predators achieved higher densities in the temperature condition and with the prey from their origin. These results confirm that predators perform better in abiotic and biotic conditions of their origin while their prey do not. This mismatch between trophic levels may be especially significant under climate change, potentially disrupting ecosystem functioning by disproportionately affecting top‐down and bottom‐up control. John Wiley and Sons Inc. 2016-06-21 /pmc/articles/PMC4979714/ /pubmed/27547320 http://dx.doi.org/10.1002/ece3.2236 Text en © 2016 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Research Parain, Elodie C. Gravel, Dominique Rohr, Rudolf P. Bersier, Louis‐Félix Gray, Sarah M. Mismatch in microbial food webs: predators but not prey perform better in their local biotic and abiotic conditions |
title | Mismatch in microbial food webs: predators but not prey perform better in their local biotic and abiotic conditions |
title_full | Mismatch in microbial food webs: predators but not prey perform better in their local biotic and abiotic conditions |
title_fullStr | Mismatch in microbial food webs: predators but not prey perform better in their local biotic and abiotic conditions |
title_full_unstemmed | Mismatch in microbial food webs: predators but not prey perform better in their local biotic and abiotic conditions |
title_short | Mismatch in microbial food webs: predators but not prey perform better in their local biotic and abiotic conditions |
title_sort | mismatch in microbial food webs: predators but not prey perform better in their local biotic and abiotic conditions |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4979714/ https://www.ncbi.nlm.nih.gov/pubmed/27547320 http://dx.doi.org/10.1002/ece3.2236 |
work_keys_str_mv | AT parainelodiec mismatchinmicrobialfoodwebspredatorsbutnotpreyperformbetterintheirlocalbioticandabioticconditions AT graveldominique mismatchinmicrobialfoodwebspredatorsbutnotpreyperformbetterintheirlocalbioticandabioticconditions AT rohrrudolfp mismatchinmicrobialfoodwebspredatorsbutnotpreyperformbetterintheirlocalbioticandabioticconditions AT bersierlouisfelix mismatchinmicrobialfoodwebspredatorsbutnotpreyperformbetterintheirlocalbioticandabioticconditions AT graysarahm mismatchinmicrobialfoodwebspredatorsbutnotpreyperformbetterintheirlocalbioticandabioticconditions |