{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T04:29:23Z","timestamp":1785472163114,"version":"3.56.0"},"reference-count":26,"publisher":"The Royal Society","issue":"7","license":[{"start":{"date-parts":[[2019,7,1]],"date-time":"2019-07-01T00:00:00Z","timestamp":1561939200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/royalsociety.org\/journals\/ethics-policies\/data-sharing-mining\/"}],"content-domain":{"domain":["royalsocietypublishing.org"],"crossmark-restriction":true},"short-container-title":["Biol. Lett."],"published-print":{"date-parts":[[2019,7]]},"abstract":"<jats:p>Abundance\u2013body mass (N\u2013M) relationships are prominent macroecological patterns and provide an integrated measurement of the structure and energy flow through natural communities. However, little is known about how N\u2013M relationships are constrained by local environmental conditions. Here, we quantify how sediment depth and direction of surface\u2013groundwater exchange (vertical hydrodynamics), two major drivers of the streambed ecology, determine N\u2013M scaling in a sandy lowland European stream. Streambed assemblages included flagellates, ciliates, meiofauna and macroinvertebrates, and spanned five orders of magnitude in body mass. We detected a significant interaction of body mass with depth and vertical hydrodynamics with a sharp reduction in N\u2013M slopes in the hyporheic zone and under upwelling conditions. These results revealed that streambed assemblages become more size-structured as environmental constraints increase with direct implications for the metabolic capacity and functioning of the system.<\/jats:p>","DOI":"10.1098\/rsbl.2019.0317","type":"journal-article","created":{"date-parts":[[2019,7,10]],"date-time":"2019-07-10T07:05:45Z","timestamp":1562742345000},"page":"20190317","update-policy":"https:\/\/doi.org\/10.1098\/crossmark-policy","source":"Crossref","is-referenced-by-count":11,"title":["Depth and vertical hydrodynamics constrain the size structure of a lowland streambed community"],"prefix":"10.1098","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3467-7664","authenticated-orcid":true,"given":"Ignacio","family":"Peralta-Maraver","sequence":"first","affiliation":[{"name":"Department of Life Sciences, Roehampton University, London, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8398-3556","authenticated-orcid":true,"given":"Anne L.","family":"Robertson","sequence":"additional","affiliation":[{"name":"Department of Life Sciences, Roehampton University, London, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0866-4816","authenticated-orcid":true,"given":"Daniel M.","family":"Perkins","sequence":"additional","affiliation":[{"name":"Department of Life Sciences, Roehampton University, London, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"175","published-online":{"date-parts":[[2019,7,10]]},"reference":[{"key":"e_1_3_6_2_2","doi-asserted-by":"publisher","DOI":"10.2307\/6025"},{"key":"e_1_3_6_3_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1461-0248.2008.01236.x"},{"key":"e_1_3_6_4_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.289.5484.1557"},{"key":"e_1_3_6_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tree.2007.03.007"},{"key":"e_1_3_6_6_2","volume-title":"The biomass spectrum: a predator\u2013prey theory of aquatic production","author":"Kerr SR","year":"2001"},{"key":"e_1_3_6_7_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0706.2010.18863.x"},{"key":"e_1_3_6_8_2","doi-asserted-by":"crossref","first-page":"127","DOI":"10.1093\/oso\/9780198515708.003.0011","volume-title":"Biodiversity and ecosystem functioning\u2014synthesis and perspectives","author":"Petchey OL","year":"2002"},{"key":"e_1_3_6_9_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.0021-8790.2004.00839.x"},{"key":"e_1_3_6_10_2","doi-asserted-by":"publisher","DOI":"10.1111\/1365-2435.12345"},{"key":"e_1_3_6_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/B978-0-12-374794-5.00002-X"},{"key":"e_1_3_6_12_2","doi-asserted-by":"publisher","DOI":"10.1111\/ele.13147"},{"key":"e_1_3_6_13_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-018-34206-z"},{"key":"e_1_3_6_14_2","doi-asserted-by":"publisher","DOI":"10.1127\/archiv-hydrobiol\/140\/1997\/131"},{"key":"e_1_3_6_15_2","doi-asserted-by":"publisher","DOI":"10.1029\/2011WR011227"},{"key":"e_1_3_6_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.scitotenv.2013.06.082"},{"key":"e_1_3_6_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.scitotenv.2017.08.036"},{"key":"e_1_3_6_18_2","doi-asserted-by":"publisher","DOI":"10.1890\/03-9000"},{"key":"e_1_3_6_19_2","doi-asserted-by":"publisher","DOI":"10.1029\/2005WR004787"},{"key":"e_1_3_6_20_2","doi-asserted-by":"publisher","DOI":"10.1111\/2041-210X.12641"},{"key":"e_1_3_6_21_2","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.2012.0394"},{"key":"e_1_3_6_22_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.scitotenv.2018.10.216"},{"key":"e_1_3_6_23_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1007783107"},{"key":"e_1_3_6_24_2","doi-asserted-by":"publisher","DOI":"10.1023\/A:1017598005228"},{"key":"e_1_3_6_25_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.0630310100"},{"key":"e_1_3_6_26_2","doi-asserted-by":"publisher","DOI":"10.1002\/2016WR019393"},{"key":"e_1_3_6_27_2","unstructured":"Peralta-Maraver I Robertson AL Perkins DM. 2019 Data from: Depth and vertical hydrodynamics constrain the size structure of a lowland streambed community. 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