Millennial-Scale Relationships of Diatom Species Richness and Production in Two Prairie Lakes
Insight into the causes and consequences of changes in aquatic biodiversity requires an improved understanding of the nature of the relationships between species richness and ecosystem function over a much longer temporal perspective than we currently possess. We used high-resolution paleoecological...
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| Veröffentlicht in: | Limnology and oceanography 2004-07, Vol.49 (4), p.1290-1299 |
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| container_title | Limnology and oceanography |
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| creator | Rusak, James A. Leavitt, Peter R. McGowan, Suzanne Chen, Gemai Olson, Olaf Wunsam, Sybille Cumming, Brian F. |
| description | Insight into the causes and consequences of changes in aquatic biodiversity requires an improved understanding of the nature of the relationships between species richness and ecosystem function over a much longer temporal perspective than we currently possess. We used high-resolution paleoecological records from two prairie lakes to show that diatom species richness (as fossil frustules) was negatively correlated $(r^{2}=0.09-0.24,p |
| doi_str_mv | 10.4319/lo.2004.49.4_part_2.1290 |
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We used high-resolution paleoecological records from two prairie lakes to show that diatom species richness (as fossil frustules) was negatively correlated $(r^{2}=0.09-0.24,p<0.001)$ with diatom production (as fossil pigments) during the past 2,000 yr. By comparing analyses from intervals of fresh and saline waters, we demonstrate that these significant richness-production relationships arose during freshwater periods $(r^{2}=0.13-0.45,p<0.001)$ and could be eliminated $(r^{2}<0.02,p>0.1)$ by abiotic disturbances such as droughts. Procrustes analyses of the concordance of species change within freshwater communities and the change in richness-production relationships through time revealed that shifts in diatom community composition could have a large influence in determining the negative relationship between richness and production. Finally, significant correlations $(r^{2}=0.09-0.24,p<0.0001)$ between past diatom species richness and ratios of stable isotopes (primarily δ 15N) suggested that C and N biogeochemical cycles are also linked to changes in algal biodiversity. Taken together, these analyses suggest that the ongoing disruption of climate and biogeochemical systems by humans may obscure the relationship between aquatic biodiversity and ecosystem function in the future.</description><identifier>ISSN: 0024-3590</identifier><identifier>EISSN: 1939-5590</identifier><identifier>DOI: 10.4319/lo.2004.49.4_part_2.1290</identifier><identifier>CODEN: LIOCAH</identifier><language>eng</language><publisher>Waco, TX: The American Society of Limnology and Oceanography</publisher><subject>Animal and plant ecology ; Animal, plant and microbial ecology ; Biodiversity ; Biodiversity, Metacommunities, and the Landscape ; Biological and medical sciences ; Brackish ; Diatoms ; Fossils ; Fresh water ; Fresh water ecosystems ; Freshwater ; Fundamental and applied biological sciences. 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We used high-resolution paleoecological records from two prairie lakes to show that diatom species richness (as fossil frustules) was negatively correlated $(r^{2}=0.09-0.24,p<0.001)$ with diatom production (as fossil pigments) during the past 2,000 yr. By comparing analyses from intervals of fresh and saline waters, we demonstrate that these significant richness-production relationships arose during freshwater periods $(r^{2}=0.13-0.45,p<0.001)$ and could be eliminated $(r^{2}<0.02,p>0.1)$ by abiotic disturbances such as droughts. Procrustes analyses of the concordance of species change within freshwater communities and the change in richness-production relationships through time revealed that shifts in diatom community composition could have a large influence in determining the negative relationship between richness and production. Finally, significant correlations $(r^{2}=0.09-0.24,p<0.0001)$ between past diatom species richness and ratios of stable isotopes (primarily δ 15N) suggested that C and N biogeochemical cycles are also linked to changes in algal biodiversity. Taken together, these analyses suggest that the ongoing disruption of climate and biogeochemical systems by humans may obscure the relationship between aquatic biodiversity and ecosystem function in the future.</description><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Biodiversity</subject><subject>Biodiversity, Metacommunities, and the Landscape</subject><subject>Biological and medical sciences</subject><subject>Brackish</subject><subject>Diatoms</subject><subject>Fossils</subject><subject>Fresh water</subject><subject>Fresh water ecosystems</subject><subject>Freshwater</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Lakes</subject><subject>Lentic systems</subject><subject>Pigments</subject><subject>Salinity</subject><subject>Sediments</subject><subject>Species</subject><subject>Synecology</subject><issn>0024-3590</issn><issn>1939-5590</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqNkU1v1DAQhi0EEkvhH3DwBW4J468kc6wKhUpbWm2XI7Icr6O6eONgZ1X13-Nol3JFPtgaP_OO9AwhlEEtBcNPIdYcQNYSa6knk2bNa8YRXpAVQ4GVUggvyQqAy0qU92vyJucHAECl1Ir8vPYhuHH0JlR31gRHNy6Y2ccx3_sp0zjQz97McU_vJme9y3Tj7f3ocqZm3NHbFHcHu-DUj3T7GEvF-OQdXZtfLr8lrwYTsnt3us_Ij8sv24tv1frm69XF-boysu2gYqK3kjvbtb3lve0b0YDkbdsyhs3QY89arpzaCV4OWNM1g5AIsmlQdc1uEGfk4zF3SvH3weVZ7322LgQzunjImnWgABEL2B1Bm2LOyQ16Sn5v0pNmoBefOkS9-NQS9V-fevFZWj-cZphcRA3JjNbnf_0KWwmdKNzVkXv0wT39d75ef79ZPiTK2_PNlp9mvj9mPeQ5puessse2rE_8AUPol6M</recordid><startdate>200407</startdate><enddate>200407</enddate><creator>Rusak, James A.</creator><creator>Leavitt, Peter R.</creator><creator>McGowan, Suzanne</creator><creator>Chen, Gemai</creator><creator>Olson, Olaf</creator><creator>Wunsam, Sybille</creator><creator>Cumming, Brian F.</creator><general>The American Society of Limnology and Oceanography</general><general>American Society of Limnology and Oceanography</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7SN</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>H96</scope><scope>L.G</scope></search><sort><creationdate>200407</creationdate><title>Millennial-Scale Relationships of Diatom Species Richness and Production in Two Prairie Lakes</title><author>Rusak, James A. ; Leavitt, Peter R. ; McGowan, Suzanne ; Chen, Gemai ; Olson, Olaf ; Wunsam, Sybille ; Cumming, Brian F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a4780-13bc42ec87bc2bcb6360427771196fb9b1725e5d323230ca86f34904669586df3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Animal and plant ecology</topic><topic>Animal, plant and microbial ecology</topic><topic>Biodiversity</topic><topic>Biodiversity, Metacommunities, and the Landscape</topic><topic>Biological and medical sciences</topic><topic>Brackish</topic><topic>Diatoms</topic><topic>Fossils</topic><topic>Fresh water</topic><topic>Fresh water ecosystems</topic><topic>Freshwater</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Lakes</topic><topic>Lentic systems</topic><topic>Pigments</topic><topic>Salinity</topic><topic>Sediments</topic><topic>Species</topic><topic>Synecology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rusak, James A.</creatorcontrib><creatorcontrib>Leavitt, Peter R.</creatorcontrib><creatorcontrib>McGowan, Suzanne</creatorcontrib><creatorcontrib>Chen, Gemai</creatorcontrib><creatorcontrib>Olson, Olaf</creatorcontrib><creatorcontrib>Wunsam, Sybille</creatorcontrib><creatorcontrib>Cumming, Brian F.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Ecology Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</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) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Limnology and oceanography</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rusak, James A.</au><au>Leavitt, Peter R.</au><au>McGowan, Suzanne</au><au>Chen, Gemai</au><au>Olson, Olaf</au><au>Wunsam, Sybille</au><au>Cumming, Brian F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Millennial-Scale Relationships of Diatom Species Richness and Production in Two Prairie Lakes</atitle><jtitle>Limnology and oceanography</jtitle><date>2004-07</date><risdate>2004</risdate><volume>49</volume><issue>4</issue><spage>1290</spage><epage>1299</epage><pages>1290-1299</pages><issn>0024-3590</issn><eissn>1939-5590</eissn><coden>LIOCAH</coden><abstract>Insight into the causes and consequences of changes in aquatic biodiversity requires an improved understanding of the nature of the relationships between species richness and ecosystem function over a much longer temporal perspective than we currently possess. 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Finally, significant correlations $(r^{2}=0.09-0.24,p<0.0001)$ between past diatom species richness and ratios of stable isotopes (primarily δ 15N) suggested that C and N biogeochemical cycles are also linked to changes in algal biodiversity. Taken together, these analyses suggest that the ongoing disruption of climate and biogeochemical systems by humans may obscure the relationship between aquatic biodiversity and ecosystem function in the future.</abstract><cop>Waco, TX</cop><pub>The American Society of Limnology and Oceanography</pub><doi>10.4319/lo.2004.49.4_part_2.1290</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Animal and plant ecology Animal, plant and microbial ecology Biodiversity Biodiversity, Metacommunities, and the Landscape Biological and medical sciences Brackish Diatoms Fossils Fresh water Fresh water ecosystems Freshwater Fundamental and applied biological sciences. Psychology Lakes Lentic systems Pigments Salinity Sediments Species Synecology |
| title | Millennial-Scale Relationships of Diatom Species Richness and Production in Two Prairie Lakes |
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