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How Long to Rest: The Ecology of Optimal Dormancy and Environmental Constraint
Dormancy is a common mechanism employed by short-lived organisms for persistence in a variable environment. Theory suggests that the fraction of propagules that terminate dormancy each year should be
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| Published in: | Ecology (Durham) 2003-05, Vol.84 (5), p.1189-1198 |
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| Main Authors: | , |
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| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c5389-10ed3082a0597535b98a2a6ff5b7ed323069b8b81f9e45cf5b2735bb749380c23 |
| container_end_page | 1198 |
| container_issue | 5 |
| container_start_page | 1189 |
| container_title | Ecology (Durham) |
| container_volume | 84 |
| creator | Cáceres, Carla E. Tessier, Alan J. |
| description | Dormancy is a common mechanism employed by short-lived organisms for persistence in a variable environment. Theory suggests that the fraction of propagules that terminate dormancy each year should be |
| doi_str_mv | 10.1890/0012-9658(2003)084[1189:HLTRTE]2.0.CO;2 |
| format | article |
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Theory suggests that the fraction of propagules that terminate dormancy each year should be <100% when recruitment success varies temporally. Moreover, the fraction of propagules that resumes development should vary across habitats that differ in the probability of successful recruitment or the probability of survival during dormancy. We tested these predictions by using dormant eggs from five populations of the freshwater cladoceran Daphnia pulicaria that differ in their ability to recruit to and persist in the water column. In two separate experiments, newly produced dormant eggs were incubated in situ for one year at various sites on the bottom of the lakes. A series of reciprocal transplants among four of these populations separated the effects of lake-specific environmental cues from the genetic and maternal effects of the different populations. Additional eggs were incubated in the laboratory under photoperiod-temperature combinations representative of those in the field. We found that the annual hatching fraction ranged from 6% to 50% among lakes, and that hatching fraction was primarily driven by environmental cues rather than being a result of the source of the eggs. However, laboratory incubations demonstrated significant differences among populations in the trajectories of the hatching curves, and a much higher rate of hatching than the field incubations. Our results suggest that variation in dormancy strategies within these systems is likely influenced both by the seasonal risk experienced by the active individuals and by risks associated with entering the dormant egg bank.</description><identifier>ISSN: 0012-9658</identifier><identifier>EISSN: 1939-9170</identifier><identifier>DOI: 10.1890/0012-9658(2003)084[1189:HLTRTE]2.0.CO;2</identifier><identifier>CODEN: ECGYAQ</identifier><language>eng</language><publisher>Washington, DC: Ecological Society of America</publisher><subject>Animal and plant ecology ; Animal, plant and microbial ecology ; Animals ; Autoecology ; bet hedging ; Biological and medical sciences ; Daphnia pulicaria ; diapause ; Dormancy ; dormancy termination and environmental cues ; dormancy, optimal ; Ecology ; Eggs ; Environment ; Freshwater ; Fundamental and applied biological sciences. Psychology ; Germination ; Hatching ; Incubation ; Marine ecology ; Population ecology ; Protozoa. 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Theory suggests that the fraction of propagules that terminate dormancy each year should be <100% when recruitment success varies temporally. Moreover, the fraction of propagules that resumes development should vary across habitats that differ in the probability of successful recruitment or the probability of survival during dormancy. We tested these predictions by using dormant eggs from five populations of the freshwater cladoceran Daphnia pulicaria that differ in their ability to recruit to and persist in the water column. In two separate experiments, newly produced dormant eggs were incubated in situ for one year at various sites on the bottom of the lakes. A series of reciprocal transplants among four of these populations separated the effects of lake-specific environmental cues from the genetic and maternal effects of the different populations. Additional eggs were incubated in the laboratory under photoperiod-temperature combinations representative of those in the field. We found that the annual hatching fraction ranged from 6% to 50% among lakes, and that hatching fraction was primarily driven by environmental cues rather than being a result of the source of the eggs. However, laboratory incubations demonstrated significant differences among populations in the trajectories of the hatching curves, and a much higher rate of hatching than the field incubations. Our results suggest that variation in dormancy strategies within these systems is likely influenced both by the seasonal risk experienced by the active individuals and by risks associated with entering the dormant egg bank.</description><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Animals</subject><subject>Autoecology</subject><subject>bet hedging</subject><subject>Biological and medical sciences</subject><subject>Daphnia pulicaria</subject><subject>diapause</subject><subject>Dormancy</subject><subject>dormancy termination and environmental cues</subject><subject>dormancy, optimal</subject><subject>Ecology</subject><subject>Eggs</subject><subject>Environment</subject><subject>Freshwater</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Germination</subject><subject>Hatching</subject><subject>Incubation</subject><subject>Marine ecology</subject><subject>Population ecology</subject><subject>Protozoa. Invertebrata</subject><subject>resting eggs</subject><subject>Sediments</subject><subject>Urban ecology</subject><subject>Zooplankton</subject><issn>0012-9658</issn><issn>1939-9170</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><recordid>eNqdkV9r2zAUxcXYYFnWb9AHMdhYH5xeSf4jtU_D85pBWKBNH8YYQnblzsGRMslpybffNS4d7HF6EegcnXv0EyHnDBZMKjgHYDxReSY_cgBxBjL9wVC4WK4215vqJ1_Aolxf8hdkxpRQiWIFvCSz51uvyZsYt4CLpXJGvi39I115d08HT69tHC7o5pelVeN7f3-kvqXr_dDtTE8_-7AzrjlS4-5o5R664N3OugGl0rs4BNO54S151Zo-2pOnfU5uv1Sbcpms1ldfy0-rpMmEVAkDeydAcgOZKjKR1UoabvK2zeoCFS4gV7WsJWuVTbMGj3mBrrpIlZDQcDEnH6bcffC_D1hb77rY2L43zvpD1ExKpfI0ReO7f4xbfwgOu2mO1PJCCIamq8nUBB9jsK3eB3xzOGoGeoSuR3x6xKdH6Bqh6xG6nqBrrkGXaz32ev80zsTG9G1AYl38G5eqNM3wX-bkZvI9dr09_u84XZXfR4PETJQx9XRK3cbBh-dUwaBQXIo_nyykpg</recordid><startdate>200305</startdate><enddate>200305</enddate><creator>Cáceres, Carla E.</creator><creator>Tessier, Alan J.</creator><general>Ecological Society of America</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7SN</scope><scope>7SS</scope><scope>7ST</scope><scope>7T7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>K9.</scope><scope>P64</scope><scope>RC3</scope><scope>SOI</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope></search><sort><creationdate>200305</creationdate><title>How Long to Rest: The Ecology of Optimal Dormancy and Environmental Constraint</title><author>Cáceres, Carla E. ; Tessier, Alan J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5389-10ed3082a0597535b98a2a6ff5b7ed323069b8b81f9e45cf5b2735bb749380c23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Animal and plant ecology</topic><topic>Animal, plant and microbial ecology</topic><topic>Animals</topic><topic>Autoecology</topic><topic>bet hedging</topic><topic>Biological and medical sciences</topic><topic>Daphnia pulicaria</topic><topic>diapause</topic><topic>Dormancy</topic><topic>dormancy termination and environmental cues</topic><topic>dormancy, optimal</topic><topic>Ecology</topic><topic>Eggs</topic><topic>Environment</topic><topic>Freshwater</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Germination</topic><topic>Hatching</topic><topic>Incubation</topic><topic>Marine ecology</topic><topic>Population ecology</topic><topic>Protozoa. Invertebrata</topic><topic>resting eggs</topic><topic>Sediments</topic><topic>Urban ecology</topic><topic>Zooplankton</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cáceres, Carla E.</creatorcontrib><creatorcontrib>Tessier, Alan J.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Animal Behavior Abstracts</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</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>Ecology (Durham)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cáceres, Carla E.</au><au>Tessier, Alan J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>How Long to Rest: The Ecology of Optimal Dormancy and Environmental Constraint</atitle><jtitle>Ecology (Durham)</jtitle><date>2003-05</date><risdate>2003</risdate><volume>84</volume><issue>5</issue><spage>1189</spage><epage>1198</epage><pages>1189-1198</pages><issn>0012-9658</issn><eissn>1939-9170</eissn><coden>ECGYAQ</coden><abstract>Dormancy is a common mechanism employed by short-lived organisms for persistence in a variable environment. Theory suggests that the fraction of propagules that terminate dormancy each year should be <100% when recruitment success varies temporally. Moreover, the fraction of propagules that resumes development should vary across habitats that differ in the probability of successful recruitment or the probability of survival during dormancy. We tested these predictions by using dormant eggs from five populations of the freshwater cladoceran Daphnia pulicaria that differ in their ability to recruit to and persist in the water column. In two separate experiments, newly produced dormant eggs were incubated in situ for one year at various sites on the bottom of the lakes. A series of reciprocal transplants among four of these populations separated the effects of lake-specific environmental cues from the genetic and maternal effects of the different populations. Additional eggs were incubated in the laboratory under photoperiod-temperature combinations representative of those in the field. We found that the annual hatching fraction ranged from 6% to 50% among lakes, and that hatching fraction was primarily driven by environmental cues rather than being a result of the source of the eggs. However, laboratory incubations demonstrated significant differences among populations in the trajectories of the hatching curves, and a much higher rate of hatching than the field incubations. Our results suggest that variation in dormancy strategies within these systems is likely influenced both by the seasonal risk experienced by the active individuals and by risks associated with entering the dormant egg bank.</abstract><cop>Washington, DC</cop><pub>Ecological Society of America</pub><doi>10.1890/0012-9658(2003)084[1189:HLTRTE]2.0.CO;2</doi><tpages>10</tpages></addata></record> |
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| ispartof | Ecology (Durham), 2003-05, Vol.84 (5), p.1189-1198 |
| issn | 0012-9658 1939-9170 |
| language | eng |
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| source | JSTOR Archival Journals and Primary Sources Collection; Wiley-Blackwell Read & Publish Collection |
| subjects | Animal and plant ecology Animal, plant and microbial ecology Animals Autoecology bet hedging Biological and medical sciences Daphnia pulicaria diapause Dormancy dormancy termination and environmental cues dormancy, optimal Ecology Eggs Environment Freshwater Fundamental and applied biological sciences. Psychology Germination Hatching Incubation Marine ecology Population ecology Protozoa. Invertebrata resting eggs Sediments Urban ecology Zooplankton |
| title | How Long to Rest: The Ecology of Optimal Dormancy and Environmental Constraint |
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