{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,4]],"date-time":"2025-11-04T10:57:01Z","timestamp":1762253821248,"version":"3.41.2"},"reference-count":58,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2022,6,23]],"date-time":"2022-06-23T00:00:00Z","timestamp":1655942400000},"content-version":"am","delay-in-days":336,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#am"},{"start":{"date-parts":[[2021,7,22]],"date-time":"2021-07-22T00:00:00Z","timestamp":1626912000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100000001","name":"National Science Foundation","doi-asserted-by":"publisher","award":["EAR\u20101130808","OCE12\u201037140"],"award-info":[{"award-number":["EAR\u20101130808","OCE12\u201037140"]}],"id":[{"id":"10.13039\/100000001","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["esajournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Ecology"],"published-print":{"date-parts":[[2021,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Consumers often deplete local resources and aggregate along edges of remaining resources, forming \u201cconsumer fronts.\u201d We examined the factors that promote<jats:italic>Sesarma reticulatum<\/jats:italic>crab aggregations at saltmarsh creek heads to explain the directional but slow movement of these fronts. We also created artificial creek heads to test the hypothesis that hydrological conditions at creek heads create superior habitat for crabs. Soil temperatures were \u02dc11\u201312% cooler, hydrogen sulfide concentrations lower (0.0 vs. \u02dc0.58\u00a0mg\/L), and dissolved oxygen concentrations twofold higher at the creek head versus the marsh platform. In the artificial creek\u2010head experiment, altering hydrological conditions led to lower dissolved sulfide levels, higher dissolved oxygen levels, and increased densities of crab burrows and<jats:italic>Sesarma<\/jats:italic>crabs. Moreover, the elevation of the soil surface declined rapidly at artificial creek heads versus controls, suggesting that crabs were increasing erosion. Our results suggest that abiotic conditions for crabs are better at the leading edge of the creek head than the trailing edge, explaining the directional movement of the front. Moreover, the speed at which the front propagates appears to be limited by the rate at which the creekhead erodes, rather than by crab mobility. The directional and slow movement of<jats:italic>Sesarma<\/jats:italic>fronts compared to consumer fronts of other invertebrates appears to result from the inextricable link between<jats:italic>Sesarma<\/jats:italic>and marsh geomorphology, whereas other consumer fronts are associated mostly with food resources.<\/jats:p>","DOI":"10.1002\/ecy.3447","type":"journal-article","created":{"date-parts":[[2021,6,23]],"date-time":"2021-06-23T17:11:43Z","timestamp":1624468303000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Directional movement of consumer fronts associated with creek heads in salt marshes"],"prefix":"10.1002","volume":"102","author":[{"given":"Huy D.","family":"Vu","sequence":"first","affiliation":[{"name":"Department of Biology and Biochemistry University of Houston Houston Texas 77204 USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4757-7125","authenticated-orcid":false,"given":"Steven C.","family":"Pennings","sequence":"additional","affiliation":[{"name":"Department of Biology and Biochemistry University of Houston Houston Texas 77204 USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2021,7,22]]},"reference":[{"doi-asserted-by":"publisher","key":"e_1_2_6_2_1","DOI":"10.1890\/12-1781.1"},{"doi-asserted-by":"publisher","key":"e_1_2_6_3_1","DOI":"10.1890\/11-1314.1"},{"doi-asserted-by":"publisher","key":"e_1_2_6_4_1","DOI":"10.1007\/s00442-018-4112-8"},{"doi-asserted-by":"publisher","key":"e_1_2_6_5_1","DOI":"10.3354\/meps259215"},{"doi-asserted-by":"publisher","key":"e_1_2_6_6_1","DOI":"10.1890\/12-2150.1"},{"doi-asserted-by":"publisher","key":"e_1_2_6_7_1","DOI":"10.1890\/08-1396.1"},{"doi-asserted-by":"publisher","key":"e_1_2_6_8_1","DOI":"10.1016\/S0022-0981(84)80002-7"},{"doi-asserted-by":"publisher","key":"e_1_2_6_9_1","DOI":"10.1016\/j.jembe.2015.06.003"},{"doi-asserted-by":"publisher","key":"e_1_2_6_10_1","DOI":"10.1016\/j.margeo.2013.08.005"},{"doi-asserted-by":"publisher","key":"e_1_2_6_11_1","DOI":"10.4319\/lo.2007.52.3.1220"},{"key":"e_1_2_6_12_1","first-page":"3","article-title":"Marsh crab: intertidal tunnel\u2010maker and grass\u2010eater","volume":"5","author":"Crichton O. W.","year":"1960","journal-title":"Estuarine Bulletin"},{"doi-asserted-by":"publisher","key":"e_1_2_6_13_1","DOI":"10.1073\/pnas.1917869117"},{"key":"e_1_2_6_14_1","first-page":"203","volume-title":"Oceanography and marine biology. An annual review","author":"Diaz R. J.","year":"1995"},{"doi-asserted-by":"publisher","key":"e_1_2_6_15_1","DOI":"10.1016\/S0022-0981(96)02644-5"},{"doi-asserted-by":"publisher","key":"e_1_2_6_16_1","DOI":"10.1146\/annurev.en.35.010190.003035"},{"doi-asserted-by":"publisher","key":"e_1_2_6_17_1","DOI":"10.4319\/lo.2007.52.6.2340"},{"key":"e_1_2_6_18_1","first-page":"661","volume-title":"Concepts and controversies in tidal marsh ecology","author":"Evin L. A.","year":"2000"},{"doi-asserted-by":"publisher","key":"e_1_2_6_19_1","DOI":"10.1016\/j.ecss.2020.106710"},{"doi-asserted-by":"publisher","key":"e_1_2_6_20_1","DOI":"10.2307\/1352081"},{"doi-asserted-by":"publisher","key":"e_1_2_6_21_1","DOI":"10.1007\/BF00381948"},{"doi-asserted-by":"publisher","key":"e_1_2_6_22_1","DOI":"10.1007\/BF00288436"},{"doi-asserted-by":"publisher","key":"e_1_2_6_23_1","DOI":"10.1111\/j.1523-1739.2008.01137.x"},{"doi-asserted-by":"publisher","key":"e_1_2_6_24_1","DOI":"10.3354\/meps08331"},{"doi-asserted-by":"publisher","key":"e_1_2_6_25_1","DOI":"10.1029\/2008GL036000"},{"doi-asserted-by":"publisher","key":"e_1_2_6_26_1","DOI":"10.1017\/S0025315400033828"},{"doi-asserted-by":"publisher","key":"e_1_2_6_27_1","DOI":"10.1371\/journal.pone.0047363"},{"doi-asserted-by":"publisher","key":"e_1_2_6_28_1","DOI":"10.3354\/meps09628"},{"doi-asserted-by":"publisher","key":"e_1_2_6_29_1","DOI":"10.3354\/meps329191"},{"doi-asserted-by":"publisher","key":"e_1_2_6_30_1","DOI":"10.2983\/035.028.0322"},{"doi-asserted-by":"publisher","key":"e_1_2_6_31_1","DOI":"10.1890\/07-0643.1"},{"doi-asserted-by":"publisher","key":"e_1_2_6_32_1","DOI":"10.1016\/j.physbeh.2015.07.013"},{"volume-title":"The behaviour and ecology of the African Buffalo","year":"1983","author":"Mloszewski M. J.","key":"e_1_2_6_33_1"},{"doi-asserted-by":"publisher","key":"e_1_2_6_34_1","DOI":"10.1111\/j.0021-8901.2004.00932.x"},{"doi-asserted-by":"publisher","key":"e_1_2_6_35_1","DOI":"10.1016\/0005-2728(75)90186-3"},{"doi-asserted-by":"publisher","key":"e_1_2_6_36_1","DOI":"10.1111\/j.0021-8901.2004.00916.x"},{"volume-title":"Plant allometry at GCE sampling sites 1\u201010 in October, 2002 ver 30","year":"2014","author":"Pennings S. C.","key":"e_1_2_6_37_1"},{"doi-asserted-by":"publisher","key":"e_1_2_6_38_1","DOI":"10.1002\/esp.1018"},{"doi-asserted-by":"publisher","key":"e_1_2_6_39_1","DOI":"10.1007\/s00442-018-4078-6"},{"doi-asserted-by":"publisher","key":"e_1_2_6_40_1","DOI":"10.1007\/978-1-4612-5893-3"},{"doi-asserted-by":"publisher","key":"e_1_2_6_41_1","DOI":"10.1146\/annurev.ecolsys.33.010802.150513"},{"doi-asserted-by":"publisher","key":"e_1_2_6_42_1","DOI":"10.1139\/f99-163"},{"doi-asserted-by":"publisher","key":"e_1_2_6_43_1","DOI":"10.1002\/2013JF002900"},{"key":"e_1_2_6_44_1","doi-asserted-by":"crossref","DOI":"10.1525\/9780520943759","volume-title":"Human impacts on salt marshes: a global perspective","author":"Silliman B. R.","year":"2009"},{"doi-asserted-by":"publisher","key":"e_1_2_6_45_1","DOI":"10.1146\/annurev-ecolsys-110512-135753"},{"doi-asserted-by":"publisher","key":"e_1_2_6_46_1","DOI":"10.1126\/science.1118229"},{"volume-title":"The African buffalo: a study of resource limitation of populations","year":"1977","author":"Sinclair A. R. E.","key":"e_1_2_6_47_1"},{"doi-asserted-by":"publisher","key":"e_1_2_6_48_1","DOI":"10.2307\/1931862"},{"doi-asserted-by":"publisher","key":"e_1_2_6_49_1","DOI":"10.1086\/283290"},{"doi-asserted-by":"publisher","key":"e_1_2_6_50_1","DOI":"10.1002\/esp.3265"},{"doi-asserted-by":"publisher","key":"e_1_2_6_51_1","DOI":"10.1073\/pnas.0803833105"},{"doi-asserted-by":"publisher","key":"e_1_2_6_52_1","DOI":"10.4319\/lo.2010.55.3.1075"},{"doi-asserted-by":"publisher","key":"e_1_2_6_53_1","DOI":"10.1007\/s12237-012-9583-y"},{"key":"e_1_2_6_54_1","first-page":"18","article-title":"More than just a crab hole","volume":"13","author":"Vopel K.","year":"2005","journal-title":"Water and Atmosphere"},{"doi-asserted-by":"publisher","key":"e_1_2_6_55_1","DOI":"10.1002\/ecy.1628"},{"doi-asserted-by":"publisher","key":"e_1_2_6_56_1","DOI":"10.1016\/j.ecss.2012.04.019"},{"doi-asserted-by":"publisher","key":"e_1_2_6_57_1","DOI":"10.1139\/f04-170"},{"doi-asserted-by":"publisher","key":"e_1_2_6_58_1","DOI":"10.1890\/01-4073"},{"doi-asserted-by":"publisher","key":"e_1_2_6_59_1","DOI":"10.1002\/lno.11867"}],"container-title":["Ecology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/ecy.3447","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/ecy.3447","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/esajournals.onlinelibrary.wiley.com\/doi\/am-pdf\/10.1002\/ecy.3447","content-type":"application\/pdf","content-version":"am","intended-application":"syndication"},{"URL":"https:\/\/esajournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/ecy.3447","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,11,5]],"date-time":"2023-11-05T07:38:02Z","timestamp":1699169882000},"score":1,"resource":{"primary":{"URL":"https:\/\/esajournals.onlinelibrary.wiley.com\/doi\/10.1002\/ecy.3447"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,7,22]]},"references-count":58,"journal-issue":{"issue":"9","published-print":{"date-parts":[[2021,9]]}},"alternative-id":["10.1002\/ecy.3447"],"URL":"https:\/\/doi.org\/10.1002\/ecy.3447","archive":["Portico"],"relation":{},"ISSN":["0012-9658","1939-9170"],"issn-type":[{"type":"print","value":"0012-9658"},{"type":"electronic","value":"1939-9170"}],"subject":[],"published":{"date-parts":[[2021,7,22]]},"assertion":[{"value":"2020-08-03","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2021-04-05","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2021-07-22","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e03447"}}