ON THE BIOECONOMICS OF MARINE RESERVES WHEN DISPERSAL EVOLVES
Marine reserves are an increasingly used and potentially contentious tool in fisheries management. Depending upon the way that individuals move, no‐take marine reserves can be necessary for maximizing equilibrium rent in some simple mathematical models. The implementation of no‐take marine reserves...
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Veröffentlicht in: | Natural resource modeling 2015-11, Vol.28 (4), p.456-474 |
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description | Marine reserves are an increasingly used and potentially contentious tool in fisheries management. Depending upon the way that individuals move, no‐take marine reserves can be necessary for maximizing equilibrium rent in some simple mathematical models. The implementation of no‐take marine reserves often generates a redistribution of fishing effort in space. This redistribution of effort, in turn, produces sharp spatial gradients in mortality rates for the targeted stock. Using a two‐patch model, we show that the existence of such gradients is a sufficient condition for the evolution of an evolutionarily stable conditional dispersal strategy. Thus, the dispersal strategy of the fish depends upon the harvesting strategy of the manager and vice versa. We find that an evolutionarily stable optimal harvesting strategy (ESOHS)—one which maximizes equilibrium rent given that fish disperse in an evolutionarily stable manner– ‐ never includes a no‐take marine reserve. This strategy is economically unstable in the short run because a manager can generate more rent by disregarding the possibility of dispersal evolution. Simulations of a stochastic evolutionary process suggest that such a short‐run, myopic strategy performs poorly compared to the ESOHS over the long run, however, as it generates rent that is lower on average and higher in variability. |
doi_str_mv | 10.1111/nrm.12075 |
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Depending upon the way that individuals move, no‐take marine reserves can be necessary for maximizing equilibrium rent in some simple mathematical models. The implementation of no‐take marine reserves often generates a redistribution of fishing effort in space. This redistribution of effort, in turn, produces sharp spatial gradients in mortality rates for the targeted stock. Using a two‐patch model, we show that the existence of such gradients is a sufficient condition for the evolution of an evolutionarily stable conditional dispersal strategy. Thus, the dispersal strategy of the fish depends upon the harvesting strategy of the manager and vice versa. We find that an evolutionarily stable optimal harvesting strategy (ESOHS)—one which maximizes equilibrium rent given that fish disperse in an evolutionarily stable manner– ‐ never includes a no‐take marine reserve. This strategy is economically unstable in the short run because a manager can generate more rent by disregarding the possibility of dispersal evolution. 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Depending upon the way that individuals move, no‐take marine reserves can be necessary for maximizing equilibrium rent in some simple mathematical models. The implementation of no‐take marine reserves often generates a redistribution of fishing effort in space. This redistribution of effort, in turn, produces sharp spatial gradients in mortality rates for the targeted stock. Using a two‐patch model, we show that the existence of such gradients is a sufficient condition for the evolution of an evolutionarily stable conditional dispersal strategy. Thus, the dispersal strategy of the fish depends upon the harvesting strategy of the manager and vice versa. We find that an evolutionarily stable optimal harvesting strategy (ESOHS)—one which maximizes equilibrium rent given that fish disperse in an evolutionarily stable manner– ‐ never includes a no‐take marine reserve. This strategy is economically unstable in the short run because a manager can generate more rent by disregarding the possibility of dispersal evolution. Simulations of a stochastic evolutionary process suggest that such a short‐run, myopic strategy performs poorly compared to the ESOHS over the long run, however, as it generates rent that is lower on average and higher in variability.</description><subject>Evolution of dispersal</subject><subject>evolutionarily stable strategy</subject><subject>fisheries management</subject><subject>Marine</subject><subject>Marine conservation</subject><subject>marine protected areas</subject><subject>Mathematical models</subject><subject>Mortality</subject><subject>optimal harvesting</subject><subject>Underwater resources</subject><issn>0890-8575</issn><issn>1939-7445</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp10E9PwjAYBvDGaCKiB7_BEi96GLTrv-3gAWeBxbGZDcFbM7YuGQLDFaJ8e6tTDyb28ibN73nz5gHgEsEeMq-_adY95EBOj0AHedizOSH0GHSg60HbpZyegjOtlxAiQj3aAbdxZE3HwroLYuHHUTwJ_NSKh9ZkkASRsBKRimQmUms-FpF1H6SPIkkHoSVmcWi-z8FJma20uvieXfA0FFN_bIfxKPAHoZ1TyKjtOQxCx-OkYGXOvFLRBSndgucOI9wpmOLU5QXCDKNFRtACu9gYgpGCjBHXxV1w3e7dNvXrXumdXFc6V6tVtlH1XkvEseM6nBFm6NUfuqz3zcZcZ5TDKeeIUaNuWpU3tdaNKuW2qdZZc5AIys8ipSlSfhVpbL-1b9VKHf6HMkomPwm7TVR6p95_E1nzIhnHRs6jkXyYPEd3jHGJ8QcCAHrz</recordid><startdate>201511</startdate><enddate>201511</enddate><creator>MOBERG, EMILY A.</creator><creator>SHYU, ESTHER</creator><creator>HERRERA, GUILLERMO E.</creator><creator>LENHART, SUZANNE</creator><creator>LOU, YUAN</creator><creator>NEUBERT, MICHAEL G.</creator><general>Blackwell Publishing Ltd</general><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope></search><sort><creationdate>201511</creationdate><title>ON THE BIOECONOMICS OF MARINE RESERVES WHEN DISPERSAL EVOLVES</title><author>MOBERG, EMILY A. ; SHYU, ESTHER ; HERRERA, GUILLERMO E. ; LENHART, SUZANNE ; LOU, YUAN ; NEUBERT, MICHAEL G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5065-926002974d6fc69fe5b4f8d7c26472d6e7587d13631ba41b383fe5431e0664883</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Evolution of dispersal</topic><topic>evolutionarily stable strategy</topic><topic>fisheries management</topic><topic>Marine</topic><topic>Marine conservation</topic><topic>marine protected areas</topic><topic>Mathematical models</topic><topic>Mortality</topic><topic>optimal harvesting</topic><topic>Underwater resources</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>MOBERG, EMILY A.</creatorcontrib><creatorcontrib>SHYU, ESTHER</creatorcontrib><creatorcontrib>HERRERA, GUILLERMO E.</creatorcontrib><creatorcontrib>LENHART, SUZANNE</creatorcontrib><creatorcontrib>LOU, YUAN</creatorcontrib><creatorcontrib>NEUBERT, MICHAEL G.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Natural resource modeling</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>MOBERG, EMILY A.</au><au>SHYU, ESTHER</au><au>HERRERA, GUILLERMO E.</au><au>LENHART, SUZANNE</au><au>LOU, YUAN</au><au>NEUBERT, MICHAEL G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>ON THE BIOECONOMICS OF MARINE RESERVES WHEN DISPERSAL EVOLVES</atitle><jtitle>Natural resource modeling</jtitle><addtitle>Natural Resource Modeling</addtitle><date>2015-11</date><risdate>2015</risdate><volume>28</volume><issue>4</issue><spage>456</spage><epage>474</epage><pages>456-474</pages><issn>0890-8575</issn><eissn>1939-7445</eissn><abstract>Marine reserves are an increasingly used and potentially contentious tool in fisheries management. Depending upon the way that individuals move, no‐take marine reserves can be necessary for maximizing equilibrium rent in some simple mathematical models. The implementation of no‐take marine reserves often generates a redistribution of fishing effort in space. This redistribution of effort, in turn, produces sharp spatial gradients in mortality rates for the targeted stock. Using a two‐patch model, we show that the existence of such gradients is a sufficient condition for the evolution of an evolutionarily stable conditional dispersal strategy. Thus, the dispersal strategy of the fish depends upon the harvesting strategy of the manager and vice versa. We find that an evolutionarily stable optimal harvesting strategy (ESOHS)—one which maximizes equilibrium rent given that fish disperse in an evolutionarily stable manner– ‐ never includes a no‐take marine reserve. This strategy is economically unstable in the short run because a manager can generate more rent by disregarding the possibility of dispersal evolution. Simulations of a stochastic evolutionary process suggest that such a short‐run, myopic strategy performs poorly compared to the ESOHS over the long run, however, as it generates rent that is lower on average and higher in variability.</abstract><cop>Hoboken</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/nrm.12075</doi><tpages>19</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Evolution of dispersal evolutionarily stable strategy fisheries management Marine Marine conservation marine protected areas Mathematical models Mortality optimal harvesting Underwater resources |
title | ON THE BIOECONOMICS OF MARINE RESERVES WHEN DISPERSAL EVOLVES |
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