Tolerance rather than competition leads to spatial dominance of an Antarctic bryozoan
Understanding the processes that govern species distributions is a fundamental goal of ecology. Species differ in patterns of resource-use due to differences in response to biotic and environmental factors. Some species dominate favourable habitat through competitively superiority, while others have...
Published in: | Journal of Experimental Marine Biology and Ecology |
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Language: | unknown |
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Elsevier
2017
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Online Access: | http://hdl.handle.net/1959.4/unsworks_56064 https://doi.org/10.1016/j.jembe.2016.10.008 |
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ftunswworks:oai:unsworks.library.unsw.edu.au:1959.4/unsworks_56064 2024-05-12T07:55:05+00:00 Tolerance rather than competition leads to spatial dominance of an Antarctic bryozoan Clark, GF Stark, JS Johnston, EL 2017-01-01 http://hdl.handle.net/1959.4/unsworks_56064 https://doi.org/10.1016/j.jembe.2016.10.008 unknown Elsevier http://purl.org/au-research/grants/arc/DP1096900 http://hdl.handle.net/1959.4/unsworks_56064 https://doi.org/10.1016/j.jembe.2016.10.008 metadata only access http://purl.org/coar/access_right/c_14cb CC-BY-NC-ND https://creativecommons.org/licenses/by-nc-nd/4.0/ urn:ISSN:0022-0981 urn:ISSN:1879-1697 Journal of Experimental Marine Biology and Ecology, 486, 222-229 anzsrc-for: 05 Environmental Sciences anzsrc-for: 06 Biological Sciences anzsrc-for: 07 Agricultural and Veterinary Sciences journal article http://purl.org/coar/resource_type/c_6501 2017 ftunswworks https://doi.org/10.1016/j.jembe.2016.10.008 2024-04-17T15:55:34Z Understanding the processes that govern species distributions is a fundamental goal of ecology. Species differ in patterns of resource-use due to differences in response to biotic and environmental factors. Some species dominate favourable habitat through competitively superiority, while others have evolved to exploit niches of abiotic stress where competition is low. We observed interspecific differences in the use of horizontal and vertical habitats by Antarctic bryozoa. The most spatially dominant species, Inversiula nutrix, mainly occupied horizontal surfaces, while nine other bryozoan species mainly occupied vertical surfaces. We hypothesized that this spatial segregation may be due to either competitive displacement of other species by I. nutrix, or tolerance of I. nutrix to an environmental stress associated with horizontal orientation. To investigate this we quantified competitive interactions between all species, and conducted a manipulative field experiment to test effects of sedimentation on bryozoan growth. We found that I. nutrix was not a superior competitor, but was more tolerant of sedimentation than were other species. Despite mediocre competitive ability, tolerance to a stressor has allowed I. nutrix to occupy resources unavailable to the other species, and thereby gain spatial dominance within the community. Article in Journal/Newspaper Antarc* Antarctic UNSW Sydney (The University of New South Wales): UNSWorks Antarctic Journal of Experimental Marine Biology and Ecology 486 222 229 |
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Open Polar |
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UNSW Sydney (The University of New South Wales): UNSWorks |
op_collection_id |
ftunswworks |
language |
unknown |
topic |
anzsrc-for: 05 Environmental Sciences anzsrc-for: 06 Biological Sciences anzsrc-for: 07 Agricultural and Veterinary Sciences |
spellingShingle |
anzsrc-for: 05 Environmental Sciences anzsrc-for: 06 Biological Sciences anzsrc-for: 07 Agricultural and Veterinary Sciences Clark, GF Stark, JS Johnston, EL Tolerance rather than competition leads to spatial dominance of an Antarctic bryozoan |
topic_facet |
anzsrc-for: 05 Environmental Sciences anzsrc-for: 06 Biological Sciences anzsrc-for: 07 Agricultural and Veterinary Sciences |
description |
Understanding the processes that govern species distributions is a fundamental goal of ecology. Species differ in patterns of resource-use due to differences in response to biotic and environmental factors. Some species dominate favourable habitat through competitively superiority, while others have evolved to exploit niches of abiotic stress where competition is low. We observed interspecific differences in the use of horizontal and vertical habitats by Antarctic bryozoa. The most spatially dominant species, Inversiula nutrix, mainly occupied horizontal surfaces, while nine other bryozoan species mainly occupied vertical surfaces. We hypothesized that this spatial segregation may be due to either competitive displacement of other species by I. nutrix, or tolerance of I. nutrix to an environmental stress associated with horizontal orientation. To investigate this we quantified competitive interactions between all species, and conducted a manipulative field experiment to test effects of sedimentation on bryozoan growth. We found that I. nutrix was not a superior competitor, but was more tolerant of sedimentation than were other species. Despite mediocre competitive ability, tolerance to a stressor has allowed I. nutrix to occupy resources unavailable to the other species, and thereby gain spatial dominance within the community. |
format |
Article in Journal/Newspaper |
author |
Clark, GF Stark, JS Johnston, EL |
author_facet |
Clark, GF Stark, JS Johnston, EL |
author_sort |
Clark, GF |
title |
Tolerance rather than competition leads to spatial dominance of an Antarctic bryozoan |
title_short |
Tolerance rather than competition leads to spatial dominance of an Antarctic bryozoan |
title_full |
Tolerance rather than competition leads to spatial dominance of an Antarctic bryozoan |
title_fullStr |
Tolerance rather than competition leads to spatial dominance of an Antarctic bryozoan |
title_full_unstemmed |
Tolerance rather than competition leads to spatial dominance of an Antarctic bryozoan |
title_sort |
tolerance rather than competition leads to spatial dominance of an antarctic bryozoan |
publisher |
Elsevier |
publishDate |
2017 |
url |
http://hdl.handle.net/1959.4/unsworks_56064 https://doi.org/10.1016/j.jembe.2016.10.008 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
urn:ISSN:0022-0981 urn:ISSN:1879-1697 Journal of Experimental Marine Biology and Ecology, 486, 222-229 |
op_relation |
http://purl.org/au-research/grants/arc/DP1096900 http://hdl.handle.net/1959.4/unsworks_56064 https://doi.org/10.1016/j.jembe.2016.10.008 |
op_rights |
metadata only access http://purl.org/coar/access_right/c_14cb CC-BY-NC-ND https://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1016/j.jembe.2016.10.008 |
container_title |
Journal of Experimental Marine Biology and Ecology |
container_volume |
486 |
container_start_page |
222 |
op_container_end_page |
229 |
_version_ |
1798855344983638016 |