Using food web dominator trees to catch secondary extinctions in action
In ecosystems, a single extinction event can give rise to multiple ‘secondary’ extinctions. Conservation effort would benefit from tools that help forecast the consequences of species removal. One such tool is the dominator tree, a graph-theoretic algorithm that when applied to food webs unfolds the...
Published in: | Philosophical Transactions of the Royal Society B: Biological Sciences |
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Online Access: | http://hdl.handle.net/11381/1995919 https://doi.org/10.1098/rstb.2008.0278 |
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ftunivparmairis:oai:air.unipr.it:11381/1995919 2024-04-21T07:58:11+00:00 Using food web dominator trees to catch secondary extinctions in action BODINI, Antonio BELLINGERI M ALLESINA S BONDAVALLI C. Bodini, Antonio Bellingeri, M Allesina, S Bondavalli, C. 2009 http://hdl.handle.net/11381/1995919 https://doi.org/10.1098/rstb.2008.0278 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000266104100009 volume:364 firstpage:1725 lastpage:1731 numberofpages:7 journal:PHILOSOPHICAL TRANSACTIONS - ROYAL SOCIETY. BIOLOGICAL SCIENCES http://hdl.handle.net/11381/1995919 doi:10.1098/rstb.2008.0278 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-67650283805 info:eu-repo/semantics/closedAccess dominator tree energy flow food web graph theory secondary extinction info:eu-repo/semantics/article 2009 ftunivparmairis https://doi.org/10.1098/rstb.2008.0278 2024-03-28T01:22:27Z In ecosystems, a single extinction event can give rise to multiple ‘secondary’ extinctions. Conservation effort would benefit from tools that help forecast the consequences of species removal. One such tool is the dominator tree, a graph-theoretic algorithm that when applied to food webs unfolds their complex architecture, yielding a simpler topology made of linear pathways that are essential for energy delivery. Each species along these chains is responsible for passing energy to the taxa that follow it and, as such, it is indispensable for their survival. To assess the predictive potential of the dominator tree, we compare its predictions with the effects that followed the collapse of the capelin (Mallotus villosus) in the Barents Sea ecosystem. To this end, we first compiled a food web for this ecosystem, then we built the corresponding dominator tree and, finally, we observed whether model predictions matched the empirical observations. This analysis shows the potential and the drawbacks of the dominator trees as a tool for understanding the causes and consequences of extinctions in food webs. Article in Journal/Newspaper Barents Sea Archivio della ricerca dell'Università di Parma (CINECA IRIS) Philosophical Transactions of the Royal Society B: Biological Sciences 364 1524 1725 1731 |
institution |
Open Polar |
collection |
Archivio della ricerca dell'Università di Parma (CINECA IRIS) |
op_collection_id |
ftunivparmairis |
language |
English |
topic |
dominator tree energy flow food web graph theory secondary extinction |
spellingShingle |
dominator tree energy flow food web graph theory secondary extinction BODINI, Antonio BELLINGERI M ALLESINA S BONDAVALLI C. Using food web dominator trees to catch secondary extinctions in action |
topic_facet |
dominator tree energy flow food web graph theory secondary extinction |
description |
In ecosystems, a single extinction event can give rise to multiple ‘secondary’ extinctions. Conservation effort would benefit from tools that help forecast the consequences of species removal. One such tool is the dominator tree, a graph-theoretic algorithm that when applied to food webs unfolds their complex architecture, yielding a simpler topology made of linear pathways that are essential for energy delivery. Each species along these chains is responsible for passing energy to the taxa that follow it and, as such, it is indispensable for their survival. To assess the predictive potential of the dominator tree, we compare its predictions with the effects that followed the collapse of the capelin (Mallotus villosus) in the Barents Sea ecosystem. To this end, we first compiled a food web for this ecosystem, then we built the corresponding dominator tree and, finally, we observed whether model predictions matched the empirical observations. This analysis shows the potential and the drawbacks of the dominator trees as a tool for understanding the causes and consequences of extinctions in food webs. |
author2 |
Bodini, Antonio Bellingeri, M Allesina, S Bondavalli, C. |
format |
Article in Journal/Newspaper |
author |
BODINI, Antonio BELLINGERI M ALLESINA S BONDAVALLI C. |
author_facet |
BODINI, Antonio BELLINGERI M ALLESINA S BONDAVALLI C. |
author_sort |
BODINI, Antonio |
title |
Using food web dominator trees to catch secondary extinctions in action |
title_short |
Using food web dominator trees to catch secondary extinctions in action |
title_full |
Using food web dominator trees to catch secondary extinctions in action |
title_fullStr |
Using food web dominator trees to catch secondary extinctions in action |
title_full_unstemmed |
Using food web dominator trees to catch secondary extinctions in action |
title_sort |
using food web dominator trees to catch secondary extinctions in action |
publishDate |
2009 |
url |
http://hdl.handle.net/11381/1995919 https://doi.org/10.1098/rstb.2008.0278 |
genre |
Barents Sea |
genre_facet |
Barents Sea |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000266104100009 volume:364 firstpage:1725 lastpage:1731 numberofpages:7 journal:PHILOSOPHICAL TRANSACTIONS - ROYAL SOCIETY. BIOLOGICAL SCIENCES http://hdl.handle.net/11381/1995919 doi:10.1098/rstb.2008.0278 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-67650283805 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1098/rstb.2008.0278 |
container_title |
Philosophical Transactions of the Royal Society B: Biological Sciences |
container_volume |
364 |
container_issue |
1524 |
container_start_page |
1725 |
op_container_end_page |
1731 |
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1796939463178321920 |