{"id":"https://openalex.org/W2071007453","doi":"https://doi.org/10.2307/2463524","title":"Competition Intensity along a Productivity Gradient in a Low-Diversity Grassland","display_name":"Competition Intensity along a Productivity Gradient in a Low-Diversity Grassland","publication_year":1998,"publication_date":"1998-01-01","ids":{"openalex":"https://openalex.org/W2071007453","doi":"https://doi.org/10.2307/2463524","mag":"2071007453","pmid":"https://pubmed.ncbi.nlm.nih.gov/18811320"},"language":"en","primary_location":{"id":"doi:10.2307/2463524","doi":"https://doi.org/10.2307/2463524","is_oa":false,"landing_page_url":"https://doi.org/10.2307/2463524","pdf_url":null,"source":{"id":"https://openalex.org/S122176235","display_name":"The American Naturalist","issn_l":"0003-0147","issn":["0003-0147","1537-5323"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-3","ki-jl-1","medline","norway-2","poland-100","russia-white-list-1"],"host_organization":"https://openalex.org/P4310315672","host_organization_name":"University of Chicago Press","host_organization_lineage":["https://openalex.org/P4310315672","https://openalex.org/P4310315690"],"host_organization_lineage_names":["University of Chicago Press","University of Chicago"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The American Naturalist","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5006754548","display_name":"Duane A. Peltzer","orcid":"https://orcid.org/0000-0001-7724-3738","observed_orcids":["https://orcid.org/0000-0001-7724-3738"]},"institutions":[{"id":"https://openalex.org/I194028371","display_name":"University of Regina","ror":"https://ror.org/03dzc0485","country_code":"CA","type":"education","lineage":["https://openalex.org/I194028371"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Duane\u00a0A. Peltzer","raw_affiliation_strings":["Department of Biology, University of Regina, Regina, Saskatchewan S4S 0A2, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biology, University of Regina, Regina, Saskatchewan S4S 0A2, Canada","institution_ids":["https://openalex.org/I194028371"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027708327","display_name":"Scott D. Wilson","orcid":"https://orcid.org/0000-0002-0631-8226","observed_orcids":["https://orcid.org/0000-0002-0631-8226"]},"institutions":[{"id":"https://openalex.org/I194028371","display_name":"University of Regina","ror":"https://ror.org/03dzc0485","country_code":"CA","type":"education","lineage":["https://openalex.org/I194028371"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Scott\u00a0D. Wilson","raw_affiliation_strings":["Department of Biology, University of Regina, Regina, Saskatchewan S4S 0A2, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biology, University of Regina, Regina, Saskatchewan S4S 0A2, Canada","institution_ids":["https://openalex.org/I194028371"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5058841567","display_name":"Ann K. Gerry","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ann\u00a0K. Gerry","raw_affiliation_strings":["Saskatchewan Conservation Data Centre, Regina, Saskatchewan S4S 5W6, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Saskatchewan Conservation Data Centre, Regina, Saskatchewan S4S 5W6, Canada","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":7.7964,"has_fulltext":false,"cited_by_count":106,"citation_normalized_percentile":{"value":0.97956604,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":99},"biblio":{"volume":"151","issue":"5","first_page":"465","last_page":"465"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10005","display_name":"Ecology and Vegetation Dynamics Studies","score":0.9961000084877014,"subfield":{"id":"https://openalex.org/subfields/2309","display_name":"Nature and Landscape Conservation"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10005","display_name":"Ecology and Vegetation Dynamics Studies","score":0.9961000084877014,"subfield":{"id":"https://openalex.org/subfields/2309","display_name":"Nature and Landscape Conservation"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12436","display_name":"Agronomic Practices and Intercropping Systems","score":0.0010000000474974513,"subfield":{"id":"https://openalex.org/subfields/1102","display_name":"Agronomy and Crop Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T13591","display_name":"Pasture and Agricultural Systems","score":0.0005000000237487257,"subfield":{"id":"https://openalex.org/subfields/1102","display_name":"Agronomy and Crop Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/plant-competition","display_name":"plant competition","score":0.8700000047683716},{"id":"https://openalex.org/keywords/root-competition","display_name":"root competition","score":0.8169999718666077},{"id":"https://openalex.org/keywords/shoot-competition","display_name":"shoot competition","score":0.9940000176429749},{"id":"https://openalex.org/keywords/productivity-gradient","display_name":"productivity gradient","score":0.7179999947547913},{"id":"https://openalex.org/keywords/nitrogen-addition","display_name":"nitrogen addition","score":0.640999972820282},{"id":"https://openalex.org/keywords/agropyron-cristatum","display_name":"Agropyron cristatum","score":0.8939999938011169},{"id":"https://openalex.org/keywords/bromus-inermis","display_name":"Bromus inermis","score":1.0},{"id":"https://openalex.org/keywords/old-field","display_name":"old field","score":0.5009999871253967},{"id":"https://openalex.org/keywords/species-composition","display_name":"species composition","score":0.6990000009536743},{"id":"https://openalex.org/keywords/competitive-intensity","display_name":"competitive intensity","score":0.4169999957084656},{"id":"https://openalex.org/keywords/transplant-growth","display_name":"transplant growth","score":0.4740000069141388}],"concepts":[{"id":"https://openalex.org/C91306197","wikidata":"https://www.wikidata.org/wiki/Q45767","display_name":"Competition (biology)","level":2,"score":0.7706452012062073},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.6715395450592041},{"id":"https://openalex.org/C2778755825","wikidata":"https://www.wikidata.org/wiki/Q147621","display_name":"Bromus","level":3,"score":0.6519678831100464},{"id":"https://openalex.org/C204983608","wikidata":"https://www.wikidata.org/wiki/Q2111958","display_name":"Productivity","level":2,"score":0.5963619947433472},{"id":"https://openalex.org/C24461792","wikidata":"https://www.wikidata.org/wiki/Q157957","display_name":"Perennial plant","level":2,"score":0.5874201655387878},{"id":"https://openalex.org/C21410773","wikidata":"https://www.wikidata.org/wiki/Q220869","display_name":"Shoot","level":2,"score":0.5574458241462708},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.5302509665489197},{"id":"https://openalex.org/C141282968","wikidata":"https://www.wikidata.org/wiki/Q1387972","display_name":"Plant ecology","level":2,"score":0.49876904487609863},{"id":"https://openalex.org/C2775835988","wikidata":"https://www.wikidata.org/wiki/Q1006733","display_name":"Grassland","level":2,"score":0.4810183644294739},{"id":"https://openalex.org/C115540264","wikidata":"https://www.wikidata.org/wiki/Q2945560","display_name":"Biomass (ecology)","level":2,"score":0.44104471802711487},{"id":"https://openalex.org/C63644423","wikidata":"https://www.wikidata.org/wiki/Q338562","display_name":"Interspecific competition","level":2,"score":0.41865628957748413},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.3753446340560913},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.34143367409706116},{"id":"https://openalex.org/C46757340","wikidata":"https://www.wikidata.org/wiki/Q43238","display_name":"Poaceae","level":2,"score":0.21599361300468445},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C139719470","wikidata":"https://www.wikidata.org/wiki/Q39680","display_name":"Macroeconomics","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.2307/2463524","doi":"https://doi.org/10.2307/2463524","is_oa":false,"landing_page_url":"https://doi.org/10.2307/2463524","pdf_url":null,"source":{"id":"https://openalex.org/S122176235","display_name":"The American Naturalist","issn_l":"0003-0147","issn":["0003-0147","1537-5323"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-3","ki-jl-1","medline","norway-2","poland-100","russia-white-list-1"],"host_organization":"https://openalex.org/P4310315672","host_organization_name":"University of Chicago Press","host_organization_lineage":["https://openalex.org/P4310315672","https://openalex.org/P4310315690"],"host_organization_lineage_names":["University of Chicago Press","University of Chicago"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The American Naturalist","raw_type":"journal-article"},{"id":"doi:10.1086/286133","doi":"https://doi.org/10.1086/286133","is_oa":false,"landing_page_url":"https://doi.org/10.1086/286133","pdf_url":null,"source":{"id":"https://openalex.org/S122176235","display_name":"The American Naturalist","issn_l":"0003-0147","issn":["0003-0147","1537-5323"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-3","ki-jl-1","medline","norway-2","poland-100","russia-white-list-1"],"host_organization":"https://openalex.org/P4310315672","host_organization_name":"University of Chicago Press","host_organization_lineage":["https://openalex.org/P4310315672","https://openalex.org/P4310315690"],"host_organization_lineage_names":["University of Chicago Press","University of Chicago"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The American Naturalist","raw_type":"journal-article"},{"id":"pmid:18811320","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/18811320","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The American naturalist","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/15","display_name":"Life on land","score":0.8518999814987183}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":65,"referenced_works":["https://openalex.org/W1488595547","https://openalex.org/W1528801611","https://openalex.org/W1551978797","https://openalex.org/W1963614419","https://openalex.org/W1964914321","https://openalex.org/W1968817261","https://openalex.org/W1971623944","https://openalex.org/W1974594075","https://openalex.org/W1989275374","https://openalex.org/W1989508470","https://openalex.org/W1991142451","https://openalex.org/W1994935041","https://openalex.org/W1995664681","https://openalex.org/W2002071492","https://openalex.org/W2005748877","https://openalex.org/W2008200025","https://openalex.org/W2014406694","https://openalex.org/W2016395993","https://openalex.org/W2023939104","https://openalex.org/W2033385345","https://openalex.org/W2035925266","https://openalex.org/W2037108547","https://openalex.org/W2040475742","https://openalex.org/W2045024292","https://openalex.org/W2046647383","https://openalex.org/W2050606254","https://openalex.org/W2055424972","https://openalex.org/W2060793884","https://openalex.org/W2065282310","https://openalex.org/W2068890500","https://openalex.org/W2069676390","https://openalex.org/W2069746653","https://openalex.org/W2070503036","https://openalex.org/W2073434072","https://openalex.org/W2074556333","https://openalex.org/W2090906467","https://openalex.org/W2092133316","https://openalex.org/W2097830953","https://openalex.org/W2103408435","https://openalex.org/W2104360657","https://openalex.org/W2114773779","https://openalex.org/W2118852799","https://openalex.org/W2121713151","https://openalex.org/W2128230084","https://openalex.org/W2133635826","https://openalex.org/W2136035194","https://openalex.org/W2136244401","https://openalex.org/W2138077181","https://openalex.org/W2167213033","https://openalex.org/W2314469497","https://openalex.org/W2315097290","https://openalex.org/W2317223750","https://openalex.org/W2317240988","https://openalex.org/W2323664919","https://openalex.org/W2323745652","https://openalex.org/W2324824859","https://openalex.org/W2332921218","https://openalex.org/W2334938219","https://openalex.org/W2519666269","https://openalex.org/W2605979644","https://openalex.org/W2796761791","https://openalex.org/W2912737289","https://openalex.org/W3025136633","https://openalex.org/W4229668875","https://openalex.org/W4302785603"],"related_works":["https://openalex.org/W2033385345","https://openalex.org/W3172219041","https://openalex.org/W2042534235","https://openalex.org/W2645043191","https://openalex.org/W2118645575","https://openalex.org/W2037108547","https://openalex.org/W2006249516","https://openalex.org/W6948147995","https://openalex.org/W2110512906","https://openalex.org/W1991142451"],"abstract_inverted_index":{"Competition":[0,122],"among":[1],"plants":[2],"often":[3],"shifts":[4,174],"from":[5,123,157,175],"roots":[6,93,125],"to":[7,26,64,100,141,159,177],"shoots":[8],"as":[9],"productivity":[10,34,137],"increases":[11],"and":[12,82,104,192],"species":[13,37,190],"composition":[14,191],"changes.":[15],"We":[16],"examined":[17],"competition":[18,120,152,161,171,179],"in":[19,112,150,169,189,209,213],"an":[20,148],"old":[21],"field":[22,143],"with":[23,90,162],"low":[24],"diversity":[25],"test":[27],"whether":[28],"this":[29],"shift":[30,156],"occurred":[31],"along":[32,181],"a":[33,155],"gradient":[35],"without":[36,114],"turnover.":[38],"Forty":[39],"plots":[40],"received":[41],"one":[42],"of":[43,61,86,94,131],"four":[44],"nitrogen":[45],"treatments":[46],"(0,":[47],"5,":[48],"or":[49,56,96,154,173,197],"15":[50],"g":[51,58],"added":[52,63],"N":[53,72],"m-2":[54,59],"yr-1":[55,60],"400":[57],"sawdust":[62],"immobilize":[65],"N)":[66],"annually":[67],"for":[68,129],"5":[69],"yr.":[70],"All":[71],"levels":[73],"were":[74,88],"dominated":[75],"by":[76,187,194],"the":[77,135],"perennial":[78],"grasses":[79],"Agropyron":[80,87],"cristatum":[81],"Bromus":[83],"inermis.":[84],"Transplants":[85],"grown":[89],"all":[91],"neighbors,":[92,95],"no":[97],"neighbors":[98,115],"present":[99],"measure":[101],"total,":[102],"root,":[103],"shoot":[105,160,178],"competition.":[106],"Transplant":[107],"growth":[108,133],"was":[109,126],"22%-165%":[110],"higher":[111],"subplots":[113],"present,":[116],"which":[117],"indicates":[118],"that":[119,145,203],"occurred.":[121],"neighbor":[124,198],"primarily":[127],"responsible":[128],"suppression":[130],"transplant":[132],"over":[134],"entire":[136],"gradient.":[138],"In":[139],"contrast":[140],"previous":[142],"experiments":[144],"found":[146,166,180],"either":[147],"increase":[149],"total":[151,170],"intensity":[153,172],"root":[158,176],"increasing":[163],"productivity,":[164],"we":[165],"neither.":[167],"Increases":[168],"other":[182],"gradients":[183],"may":[184,207],"be":[185],"caused":[186],"changes":[188],"not":[193],"increased":[195],"resources":[196],"biomass.":[199],"These":[200],"results":[201],"suggest":[202],"different":[204],"competitive":[205],"mechanisms":[206],"operate":[208],"low-diversity":[210],"vegetation":[211],"than":[212],"more":[214],"diverse":[215],"natural":[216],"vegetation.":[217]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":13},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":2},{"year":2014,"cited_by_count":3},{"year":2013,"cited_by_count":4},{"year":2012,"cited_by_count":2}],"updated_date":"2026-11-10T11:39:43.021295","created_date":"2016-06-24T00:00:00"}
