Variation in Resource Limitation of Plant Reproduction Influences Natural Selection on Floral Traits of Asclepias syriaca
The availability of both pollen and resources can influence natural selection on floral traits, but their relative importance in shaping floral evolution is unclear. We experimentally manipulated pollinator and resource (fertilizer and water) availability in the perennial wildflower Asclepias syriac...
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| Veröffentlicht in: | Oecologia 2005-11, Vol.146 (1), p.68-76 |
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| creator | Caruso, Christina M. Remington, Davin L. D. Ostergren, Kate E. |
| description | The availability of both pollen and resources can influence natural selection on floral traits, but their relative importance in shaping floral evolution is unclear. We experimentally manipulated pollinator and resource (fertilizer and water) availability in the perennial wildflower Asclepias syriaca L. Nine floral traits, one male fitness component (number of pollinia removed), and two female fitness components (number of pollinia inserted and number of fruits initiated) were measured for plants in each of three treatments (unmanipulated control, decreased pollinator access, and resource supplementation). Although decreasing pollinators' access to flowers did result in fewer pollinia inserted and removed, fruit set and phenotypic selection on floral traits via female and male fitness did not differ from the control. In contrast, resource supplementation increased fruit set, and phenotypic selection on seven out of nine floral traits was stronger via female than male fitness, consistent with the prediction that selection via female fitness would be greater when reproduction was less resource-limited. Our results support the hypothesis that abiotic resource availability can influence floral evolution by altering gender-specific selection. |
| doi_str_mv | 10.1007/s00442-005-0183-4 |
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D. ; Ostergren, Kate E.</creator><creatorcontrib>Caruso, Christina M. ; Remington, Davin L. D. ; Ostergren, Kate E.</creatorcontrib><description>The availability of both pollen and resources can influence natural selection on floral traits, but their relative importance in shaping floral evolution is unclear. We experimentally manipulated pollinator and resource (fertilizer and water) availability in the perennial wildflower Asclepias syriaca L. Nine floral traits, one male fitness component (number of pollinia removed), and two female fitness components (number of pollinia inserted and number of fruits initiated) were measured for plants in each of three treatments (unmanipulated control, decreased pollinator access, and resource supplementation). Although decreasing pollinators' access to flowers did result in fewer pollinia inserted and removed, fruit set and phenotypic selection on floral traits via female and male fitness did not differ from the control. In contrast, resource supplementation increased fruit set, and phenotypic selection on seven out of nine floral traits was stronger via female than male fitness, consistent with the prediction that selection via female fitness would be greater when reproduction was less resource-limited. Our results support the hypothesis that abiotic resource availability can influence floral evolution by altering gender-specific selection.</description><identifier>ISSN: 0029-8549</identifier><identifier>EISSN: 1432-1939</identifier><identifier>DOI: 10.1007/s00442-005-0183-4</identifier><identifier>PMID: 16028094</identifier><identifier>CODEN: OECOBX</identifier><language>eng</language><publisher>Berlin: Springer</publisher><subject>Analysis of Variance ; Animal and plant ecology ; Animal, plant and microbial ecology ; Asclepias - anatomy & histology ; Asclepias - physiology ; Asclepias syriaca ; Biological and medical sciences ; Ecological competition ; Evolution ; Females ; Flowers ; Flowers & plants ; Fruits ; Fundamental and applied biological sciences. Psychology ; Gender ; General aspects ; Natural resources ; Phenotypic selection ; Phenotypic traits ; Plant Animal Interactions ; Plant reproduction ; Plants ; Pollen ; Pollinators ; Pollinia ; Reproduction ; Resource availability ; Selection, Genetic</subject><ispartof>Oecologia, 2005-11, Vol.146 (1), p.68-76</ispartof><rights>Copyright 2005 Springer-Verlag Berlin Heidelberg</rights><rights>2006 INIST-CNRS</rights><rights>Springer-Verlag 2005</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c409t-7cd8c214502ee5db4824e99c022f2193f02083507a5d3617647c95fd702ca98d3</citedby><cites>FETCH-LOGICAL-c409t-7cd8c214502ee5db4824e99c022f2193f02083507a5d3617647c95fd702ca98d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/20062476$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/20062476$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,777,781,800,27905,27906,57998,58231</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17482081$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16028094$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Caruso, Christina M.</creatorcontrib><creatorcontrib>Remington, Davin L. D.</creatorcontrib><creatorcontrib>Ostergren, Kate E.</creatorcontrib><title>Variation in Resource Limitation of Plant Reproduction Influences Natural Selection on Floral Traits of Asclepias syriaca</title><title>Oecologia</title><addtitle>Oecologia</addtitle><description>The availability of both pollen and resources can influence natural selection on floral traits, but their relative importance in shaping floral evolution is unclear. We experimentally manipulated pollinator and resource (fertilizer and water) availability in the perennial wildflower Asclepias syriaca L. Nine floral traits, one male fitness component (number of pollinia removed), and two female fitness components (number of pollinia inserted and number of fruits initiated) were measured for plants in each of three treatments (unmanipulated control, decreased pollinator access, and resource supplementation). Although decreasing pollinators' access to flowers did result in fewer pollinia inserted and removed, fruit set and phenotypic selection on floral traits via female and male fitness did not differ from the control. In contrast, resource supplementation increased fruit set, and phenotypic selection on seven out of nine floral traits was stronger via female than male fitness, consistent with the prediction that selection via female fitness would be greater when reproduction was less resource-limited. Our results support the hypothesis that abiotic resource availability can influence floral evolution by altering gender-specific selection.</description><subject>Analysis of Variance</subject><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Asclepias - anatomy & histology</subject><subject>Asclepias - physiology</subject><subject>Asclepias syriaca</subject><subject>Biological and medical sciences</subject><subject>Ecological competition</subject><subject>Evolution</subject><subject>Females</subject><subject>Flowers</subject><subject>Flowers & plants</subject><subject>Fruits</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gender</subject><subject>General aspects</subject><subject>Natural resources</subject><subject>Phenotypic selection</subject><subject>Phenotypic traits</subject><subject>Plant Animal Interactions</subject><subject>Plant reproduction</subject><subject>Plants</subject><subject>Pollen</subject><subject>Pollinators</subject><subject>Pollinia</subject><subject>Reproduction</subject><subject>Resource availability</subject><subject>Selection, Genetic</subject><issn>0029-8549</issn><issn>1432-1939</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqFkV1rFDEUhoNY7Fr9AV4og6B3U0_OJJPkshT7AYsVrd6GNJOBLNmZNWfmYv-92c5iwZtCIHDe53y-jL3jcM4B1BcCEAJrAFkD100tXrAVFw3W3DTmJVsBoKm1FOaUvSbaAHDBpXzFTnkLqMGIFdv_djm6KY5DFYfqR6Bxzj5U67iN0xIe--p7csNUxF0eu9k_Rm-HPs1h8IGqb26as0vVz5DCIpZ3lcZD7D67ONGhxgX5FHbRUUX70tG7N-ykd4nC2-N_xn5dfb2_vKnXd9e3lxfr2gswU618pz1yIQFDkN2D0CiCMR4Qeyx79oCgGwnKya5puWqF8kb2nQL0zuiuOWOfl7pl-j9zoMluI_mQyk5hnMm2WnEtWngW5Aq5Rt4W8ON_4KZcbShLWI3QaIGaF4gvkM8jUQ693eW4dXlvOdiDe3Zxzxb37ME9K0rOh2Ph-WEbuqeMo10F-HQEHHmX-uwGH-mJU-U68Nj8_cJtaBrzPx0BWhSqbf4CO2KrGg</recordid><startdate>20051101</startdate><enddate>20051101</enddate><creator>Caruso, Christina M.</creator><creator>Remington, Davin L. 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D. ; Ostergren, Kate E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c409t-7cd8c214502ee5db4824e99c022f2193f02083507a5d3617647c95fd702ca98d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Analysis of Variance</topic><topic>Animal and plant ecology</topic><topic>Animal, plant and microbial ecology</topic><topic>Asclepias - anatomy & histology</topic><topic>Asclepias - physiology</topic><topic>Asclepias syriaca</topic><topic>Biological and medical sciences</topic><topic>Ecological competition</topic><topic>Evolution</topic><topic>Females</topic><topic>Flowers</topic><topic>Flowers & plants</topic><topic>Fruits</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Gender</topic><topic>General aspects</topic><topic>Natural resources</topic><topic>Phenotypic selection</topic><topic>Phenotypic traits</topic><topic>Plant Animal Interactions</topic><topic>Plant reproduction</topic><topic>Plants</topic><topic>Pollen</topic><topic>Pollinators</topic><topic>Pollinia</topic><topic>Reproduction</topic><topic>Resource availability</topic><topic>Selection, Genetic</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Caruso, Christina M.</creatorcontrib><creatorcontrib>Remington, Davin L. 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D.</au><au>Ostergren, Kate E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Variation in Resource Limitation of Plant Reproduction Influences Natural Selection on Floral Traits of Asclepias syriaca</atitle><jtitle>Oecologia</jtitle><addtitle>Oecologia</addtitle><date>2005-11-01</date><risdate>2005</risdate><volume>146</volume><issue>1</issue><spage>68</spage><epage>76</epage><pages>68-76</pages><issn>0029-8549</issn><eissn>1432-1939</eissn><coden>OECOBX</coden><abstract>The availability of both pollen and resources can influence natural selection on floral traits, but their relative importance in shaping floral evolution is unclear. We experimentally manipulated pollinator and resource (fertilizer and water) availability in the perennial wildflower Asclepias syriaca L. Nine floral traits, one male fitness component (number of pollinia removed), and two female fitness components (number of pollinia inserted and number of fruits initiated) were measured for plants in each of three treatments (unmanipulated control, decreased pollinator access, and resource supplementation). Although decreasing pollinators' access to flowers did result in fewer pollinia inserted and removed, fruit set and phenotypic selection on floral traits via female and male fitness did not differ from the control. In contrast, resource supplementation increased fruit set, and phenotypic selection on seven out of nine floral traits was stronger via female than male fitness, consistent with the prediction that selection via female fitness would be greater when reproduction was less resource-limited. Our results support the hypothesis that abiotic resource availability can influence floral evolution by altering gender-specific selection.</abstract><cop>Berlin</cop><pub>Springer</pub><pmid>16028094</pmid><doi>10.1007/s00442-005-0183-4</doi><tpages>9</tpages></addata></record> |
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| subjects | Analysis of Variance Animal and plant ecology Animal, plant and microbial ecology Asclepias - anatomy & histology Asclepias - physiology Asclepias syriaca Biological and medical sciences Ecological competition Evolution Females Flowers Flowers & plants Fruits Fundamental and applied biological sciences. Psychology Gender General aspects Natural resources Phenotypic selection Phenotypic traits Plant Animal Interactions Plant reproduction Plants Pollen Pollinators Pollinia Reproduction Resource availability Selection, Genetic |
| title | Variation in Resource Limitation of Plant Reproduction Influences Natural Selection on Floral Traits of Asclepias syriaca |
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