estimation of neighbourhood parameters for plant populations
Summary Sewall Wright's neighbourhood model indicates that the area containing a panmictic unit within a continuous and uniform array of organisms can be estimated by 4 πσ 2 where σ 2 is the parent-offspring dispersal variance measured around a zero mean and relative to a single reference axis...
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| Veröffentlicht in: | Heredity 1984-01, Vol.52 (2), p.273-283 |
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| Format: | Artikel |
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| container_issue | 2 |
| container_start_page | 273 |
| container_title | Heredity |
| container_volume | 52 |
| creator | Crawford, T.J |
| description | Summary
Sewall Wright's neighbourhood model indicates that the area containing a panmictic unit within a continuous and uniform array of organisms can be estimated by 4
πσ
2
where
σ
2
is the parent-offspring dispersal variance measured around a zero mean and relative to a single reference axis passing through the population. The method has proved popular in studies on higher plants but the literature is confused as to how the two components of dispersal variance, for pollen and seeds, should be combined. It is argued that
σ
2
=½
σ
p
2
+
σ
s
2
where
σ
2
p
and
σ
2
s
are pollen and seed dispersal variances already corrected to give axial variances. The consequences of using different methods are compared and some puzzling aspects of the previous literature are discussed. |
| doi_str_mv | 10.1038/hdy.1984.29 |
| format | Article |
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Sewall Wright's neighbourhood model indicates that the area containing a panmictic unit within a continuous and uniform array of organisms can be estimated by 4
πσ
2
where
σ
2
is the parent-offspring dispersal variance measured around a zero mean and relative to a single reference axis passing through the population. The method has proved popular in studies on higher plants but the literature is confused as to how the two components of dispersal variance, for pollen and seeds, should be combined. It is argued that
σ
2
=½
σ
p
2
+
σ
s
2
where
σ
2
p
and
σ
2
s
are pollen and seed dispersal variances already corrected to give axial variances. The consequences of using different methods are compared and some puzzling aspects of the previous literature are discussed.</description><identifier>ISSN: 0018-067X</identifier><identifier>EISSN: 1365-2540</identifier><identifier>DOI: 10.1038/hdy.1984.29</identifier><identifier>CODEN: HDTYAT</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Biological and medical sciences ; Biomedical and Life Sciences ; Biomedicine ; Cytogenetics ; Ecology ; Evolutionary Biology ; Fundamental and applied biological sciences. Psychology ; Genetics of eukaryotes. Biological and molecular evolution ; Human Genetics ; original-article ; plant breeding ; plant ecology ; plant genetics ; Plant Genetics and Genomics ; Population genetics, reproduction patterns ; Theories and miscellaneous</subject><ispartof>Heredity, 1984-01, Vol.52 (2), p.273-283</ispartof><rights>The Genetical Society of Great Britain 1984</rights><rights>1984 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c391t-25a63c951d6d3e12336cf952df05287b4d21a71e8df7e24ecde521f2978520803</citedby><cites>FETCH-LOGICAL-c391t-25a63c951d6d3e12336cf952df05287b4d21a71e8df7e24ecde521f2978520803</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1038/hdy.1984.29$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1038/hdy.1984.29$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=9627638$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Crawford, T.J</creatorcontrib><title>estimation of neighbourhood parameters for plant populations</title><title>Heredity</title><addtitle>Heredity</addtitle><description>Summary
Sewall Wright's neighbourhood model indicates that the area containing a panmictic unit within a continuous and uniform array of organisms can be estimated by 4
πσ
2
where
σ
2
is the parent-offspring dispersal variance measured around a zero mean and relative to a single reference axis passing through the population. The method has proved popular in studies on higher plants but the literature is confused as to how the two components of dispersal variance, for pollen and seeds, should be combined. It is argued that
σ
2
=½
σ
p
2
+
σ
s
2
where
σ
2
p
and
σ
2
s
are pollen and seed dispersal variances already corrected to give axial variances. The consequences of using different methods are compared and some puzzling aspects of the previous literature are discussed.</description><subject>Biological and medical sciences</subject><subject>Biomedical and Life Sciences</subject><subject>Biomedicine</subject><subject>Cytogenetics</subject><subject>Ecology</subject><subject>Evolutionary Biology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Genetics of eukaryotes. Biological and molecular evolution</subject><subject>Human Genetics</subject><subject>original-article</subject><subject>plant breeding</subject><subject>plant ecology</subject><subject>plant genetics</subject><subject>Plant Genetics and Genomics</subject><subject>Population genetics, reproduction patterns</subject><subject>Theories and miscellaneous</subject><issn>0018-067X</issn><issn>1365-2540</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1984</creationdate><recordtype>article</recordtype><recordid>eNp1kb1OwzAURi0EEqUw8QBkQCyQ4msnsS2xoIo_qRIDVGKz3NhuU6VxsJOhb49DKjYmDz736LvfRegS8Aww5fcbvZ-B4NmMiCM0AVrkKckzfIwmGANPccG-TtFZCFuMMWVETNCDCV21U13lmsTZpDHVerNyvd84p5NWebUznfEhsc4nba2aLmld29e_A-EcnVhVB3NxeKdo-fz0OX9NF-8vb_PHRVpSAV2MoApaihx0oakBQmlRWpETbXFOOFtlmoBiYLi2zJDMlNrkBCwRjOcEc0yn6Gb0tt599zGx3FWhNHXMY1wfJFDOGSc8grcjWHoXgjdWtj5u5_cSsBwakrEhOTQkiYj09UGrQqlq61VTVuFvRBSEFXSQ3o1YiD_N2ni5jQU1ceF_rFcjbpWTau2jcflBMFA8nIIB0B92Z34a</recordid><startdate>19840101</startdate><enddate>19840101</enddate><creator>Crawford, T.J</creator><general>Springer International Publishing</general><general>Nature Publishing</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>RC3</scope></search><sort><creationdate>19840101</creationdate><title>estimation of neighbourhood parameters for plant populations</title><author>Crawford, T.J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c391t-25a63c951d6d3e12336cf952df05287b4d21a71e8df7e24ecde521f2978520803</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1984</creationdate><topic>Biological and medical sciences</topic><topic>Biomedical and Life Sciences</topic><topic>Biomedicine</topic><topic>Cytogenetics</topic><topic>Ecology</topic><topic>Evolutionary Biology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Genetics of eukaryotes. Biological and molecular evolution</topic><topic>Human Genetics</topic><topic>original-article</topic><topic>plant breeding</topic><topic>plant ecology</topic><topic>plant genetics</topic><topic>Plant Genetics and Genomics</topic><topic>Population genetics, reproduction patterns</topic><topic>Theories and miscellaneous</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Crawford, T.J</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><jtitle>Heredity</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Crawford, T.J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>estimation of neighbourhood parameters for plant populations</atitle><jtitle>Heredity</jtitle><stitle>Heredity</stitle><date>1984-01-01</date><risdate>1984</risdate><volume>52</volume><issue>2</issue><spage>273</spage><epage>283</epage><pages>273-283</pages><issn>0018-067X</issn><eissn>1365-2540</eissn><coden>HDTYAT</coden><abstract>Summary
Sewall Wright's neighbourhood model indicates that the area containing a panmictic unit within a continuous and uniform array of organisms can be estimated by 4
πσ
2
where
σ
2
is the parent-offspring dispersal variance measured around a zero mean and relative to a single reference axis passing through the population. The method has proved popular in studies on higher plants but the literature is confused as to how the two components of dispersal variance, for pollen and seeds, should be combined. It is argued that
σ
2
=½
σ
p
2
+
σ
s
2
where
σ
2
p
and
σ
2
s
are pollen and seed dispersal variances already corrected to give axial variances. The consequences of using different methods are compared and some puzzling aspects of the previous literature are discussed.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1038/hdy.1984.29</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0018-067X |
| ispartof | Heredity, 1984-01, Vol.52 (2), p.273-283 |
| issn | 0018-067X 1365-2540 |
| language | eng |
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| source | Springer Online Journals Complete; Nature Journals Online; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Biological and medical sciences Biomedical and Life Sciences Biomedicine Cytogenetics Ecology Evolutionary Biology Fundamental and applied biological sciences. Psychology Genetics of eukaryotes. Biological and molecular evolution Human Genetics original-article plant breeding plant ecology plant genetics Plant Genetics and Genomics Population genetics, reproduction patterns Theories and miscellaneous |
| title | estimation of neighbourhood parameters for plant populations |
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