Herbivory mediates the expansion of an algal habitat under nutrient and CO₂ enrichment
Certain environmental conditions facilitate the control of primary producers by herbivores. Environmental change can, therefore, mediate the strength of consumption relative to production such that the abundance of primary producers is altered, potentially driving phase-shifts from one habitat type...
Published in: | Marine Ecology Progress Series |
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Online Access: | http://hdl.handle.net/2440/82006 https://doi.org/10.3354/meps10557 |
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ftunivadelaidedl:oai:digital.library.adelaide.edu.au:2440/82006 2023-12-17T10:48:02+01:00 Herbivory mediates the expansion of an algal habitat under nutrient and CO₂ enrichment Herbivory mediates the expansion of an algal habitat under nutrient and CO2 enrichment Falkenberg, L. Connell, S. Russell, B. 2014 http://hdl.handle.net/2440/82006 https://doi.org/10.3354/meps10557 en eng Inter-Research Marine Ecology: Progress Series, 2014; 497:87-92 0171-8630 1616-1599 http://hdl.handle.net/2440/82006 doi:10.3354/meps10557 Connell, S. [0000-0002-5350-6852] Russell, B. [0000-0003-1282-9978] © Inter-Research 2014 http://dx.doi.org/10.3354/meps10557 Carbon dioxide Climate change Grazers Nutrients Ocean acidification Eutrophication Turf-forming algae Journal article 2014 ftunivadelaidedl https://doi.org/10.3354/meps10557 2023-11-20T23:17:18Z Certain environmental conditions facilitate the control of primary producers by herbivores. Environmental change can, therefore, mediate the strength of consumption relative to production such that the abundance of primary producers is altered, potentially driving phase-shifts from one habitat type to another (e.g. the displacement kelp forests by mats of turfs along temperate coasts). Here, we assessed the extent to which herbivores may counter the increased cover of kelp-competitors (i.e. turfs) anticipated to be caused by enriched nutrients and CO₂. Specifically, we experimentally enriched nutrients and CO₂ and quantified the change in cover of algal turfs in the presence and absence of gastropod grazers. In the absence of grazers, turf algae responded positively to the combination of enriched nutrients and CO₂ such that they occupied >95% of available space. In contrast, where grazers were present, sparse covers of algal turfs were maintained even under CO2 and nutrient enrichment (i.e. turfs occupied <5% of available space). This result indicates that consumption by grazers increased where enrichment of nutrients and CO₂ facilitated greater algal cover such that cover continued to be largely restricted. By recognising the environmental conditions which will maintain or disrupt the balance between the processes of production and consumption, we may improve forecasts regarding the probability of habitat stasis or shifts. Laura J. Falkenberg, Sean D. Connell, Bayden D. Russell Article in Journal/Newspaper Ocean acidification The University of Adelaide: Digital Library Marine Ecology Progress Series 497 87 92 |
institution |
Open Polar |
collection |
The University of Adelaide: Digital Library |
op_collection_id |
ftunivadelaidedl |
language |
English |
topic |
Carbon dioxide Climate change Grazers Nutrients Ocean acidification Eutrophication Turf-forming algae |
spellingShingle |
Carbon dioxide Climate change Grazers Nutrients Ocean acidification Eutrophication Turf-forming algae Falkenberg, L. Connell, S. Russell, B. Herbivory mediates the expansion of an algal habitat under nutrient and CO₂ enrichment |
topic_facet |
Carbon dioxide Climate change Grazers Nutrients Ocean acidification Eutrophication Turf-forming algae |
description |
Certain environmental conditions facilitate the control of primary producers by herbivores. Environmental change can, therefore, mediate the strength of consumption relative to production such that the abundance of primary producers is altered, potentially driving phase-shifts from one habitat type to another (e.g. the displacement kelp forests by mats of turfs along temperate coasts). Here, we assessed the extent to which herbivores may counter the increased cover of kelp-competitors (i.e. turfs) anticipated to be caused by enriched nutrients and CO₂. Specifically, we experimentally enriched nutrients and CO₂ and quantified the change in cover of algal turfs in the presence and absence of gastropod grazers. In the absence of grazers, turf algae responded positively to the combination of enriched nutrients and CO₂ such that they occupied >95% of available space. In contrast, where grazers were present, sparse covers of algal turfs were maintained even under CO2 and nutrient enrichment (i.e. turfs occupied <5% of available space). This result indicates that consumption by grazers increased where enrichment of nutrients and CO₂ facilitated greater algal cover such that cover continued to be largely restricted. By recognising the environmental conditions which will maintain or disrupt the balance between the processes of production and consumption, we may improve forecasts regarding the probability of habitat stasis or shifts. Laura J. Falkenberg, Sean D. Connell, Bayden D. Russell |
format |
Article in Journal/Newspaper |
author |
Falkenberg, L. Connell, S. Russell, B. |
author_facet |
Falkenberg, L. Connell, S. Russell, B. |
author_sort |
Falkenberg, L. |
title |
Herbivory mediates the expansion of an algal habitat under nutrient and CO₂ enrichment |
title_short |
Herbivory mediates the expansion of an algal habitat under nutrient and CO₂ enrichment |
title_full |
Herbivory mediates the expansion of an algal habitat under nutrient and CO₂ enrichment |
title_fullStr |
Herbivory mediates the expansion of an algal habitat under nutrient and CO₂ enrichment |
title_full_unstemmed |
Herbivory mediates the expansion of an algal habitat under nutrient and CO₂ enrichment |
title_sort |
herbivory mediates the expansion of an algal habitat under nutrient and co₂ enrichment |
publisher |
Inter-Research |
publishDate |
2014 |
url |
http://hdl.handle.net/2440/82006 https://doi.org/10.3354/meps10557 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
http://dx.doi.org/10.3354/meps10557 |
op_relation |
Marine Ecology: Progress Series, 2014; 497:87-92 0171-8630 1616-1599 http://hdl.handle.net/2440/82006 doi:10.3354/meps10557 Connell, S. [0000-0002-5350-6852] Russell, B. [0000-0003-1282-9978] |
op_rights |
© Inter-Research 2014 |
op_doi |
https://doi.org/10.3354/meps10557 |
container_title |
Marine Ecology Progress Series |
container_volume |
497 |
container_start_page |
87 |
op_container_end_page |
92 |
_version_ |
1785572102712066048 |