Variation in the mobilization of mercury into Black-winged Stilt Himantopus himantopus chicks in coastal saltpans, as revealed by stable isotopes
Causes of variation in mobilization of mercury into Black-winged Stilt Himantopus himantopus chicks were studied through analysis of stable isotope ratios of carbon and nitrogen. Blood and breast feathers were collected from chicks in coastal saltpans during successive breeding seasons. Detritus sam...
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| Veröffentlicht in: | Estuarine, coastal and shelf science coastal and shelf science, 2008-03, Vol.77 (1), p.65-76 |
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| creator | Tavares, P.C. Kelly, A. Maia, R. Lopes, R.J. Serrão Santos, R. Pereira, M.E. Duarte, A.C. Furness, R.W. |
| description | Causes of variation in mobilization of mercury into Black-winged Stilt
Himantopus himantopus chicks were studied through analysis of stable isotope ratios of carbon and nitrogen. Blood and breast feathers were collected from chicks in coastal saltpans during successive breeding seasons. Detritus samples and potential prey (macroinvertebrates) were also collected. Total mercury concentrations and stable isotope signatures were measured using atomic absorption spectroscopy and isotope ratio mass spectrometry respectively. Mercury levels in Chironomidae, Corixidae and Hydrophilidae correlated with mercury levels in chick feathers. Differences of δ
15N signatures between macroinvertebrate groups indicated that they belong to different trophic levels. δ
15N signatures of invertebrates correlated with mercury levels in invertebrates and chicks, but not with δ
15N signatures in chicks. Between-group and between-site differences of δ
15N signatures and mercury levels in invertebrates suggested that they contribute differently to mercury mobilization into chicks, and their relative contribution depends on prey availability in each site. Inter-site differences in the biomagnification factor reinforced that idea. δ
13C signatures in invertebrates marked a larger range of carbon sources than just detritus. Variation of water inflow regime and prey availability may cause between-group and between-site differences of δ
13C signatures in prey. Discrepancies between feather and blood for δ
13C signatures in Praias-Sado and Vaia suggested that temporal variation of prey availability may be the main factor affecting mercury mobilization into chicks in both those cases, since their water inflow regimes are the same. The lowest levels of δ
13C signatures in Vau suggested that water inflow regime may be the main factor in this case, since no discrepancy existed in δ
13C signatures between blood and feather. |
| doi_str_mv | 10.1016/j.ecss.2007.09.015 |
| format | Article |
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Himantopus himantopus chicks were studied through analysis of stable isotope ratios of carbon and nitrogen. Blood and breast feathers were collected from chicks in coastal saltpans during successive breeding seasons. Detritus samples and potential prey (macroinvertebrates) were also collected. Total mercury concentrations and stable isotope signatures were measured using atomic absorption spectroscopy and isotope ratio mass spectrometry respectively. Mercury levels in Chironomidae, Corixidae and Hydrophilidae correlated with mercury levels in chick feathers. Differences of δ
15N signatures between macroinvertebrate groups indicated that they belong to different trophic levels. δ
15N signatures of invertebrates correlated with mercury levels in invertebrates and chicks, but not with δ
15N signatures in chicks. Between-group and between-site differences of δ
15N signatures and mercury levels in invertebrates suggested that they contribute differently to mercury mobilization into chicks, and their relative contribution depends on prey availability in each site. Inter-site differences in the biomagnification factor reinforced that idea. δ
13C signatures in invertebrates marked a larger range of carbon sources than just detritus. Variation of water inflow regime and prey availability may cause between-group and between-site differences of δ
13C signatures in prey. Discrepancies between feather and blood for δ
13C signatures in Praias-Sado and Vaia suggested that temporal variation of prey availability may be the main factor affecting mercury mobilization into chicks in both those cases, since their water inflow regimes are the same. The lowest levels of δ
13C signatures in Vau suggested that water inflow regime may be the main factor in this case, since no discrepancy existed in δ
13C signatures between blood and feather.</description><identifier>ISSN: 0272-7714</identifier><identifier>EISSN: 1096-0015</identifier><identifier>DOI: 10.1016/j.ecss.2007.09.015</identifier><identifier>CODEN: ECSSD3</identifier><language>eng</language><publisher>London: Elsevier Ltd</publisher><subject>Animal and plant ecology ; Animal, plant and microbial ecology ; Aves ; Biological and medical sciences ; birds ; Brackish ; Brackish water ecosystems ; Chironomidae ; Corixidae ; Fundamental and applied biological sciences. Psychology ; Himantopus himantopus ; Hydrophilidae ; macroinvertebrates ; mercury ; saltpans ; stable isotopes ; Stilt ; Synecology ; Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution</subject><ispartof>Estuarine, coastal and shelf science, 2008-03, Vol.77 (1), p.65-76</ispartof><rights>2007 Elsevier Ltd</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c392t-7ded64423d1e6e943ef97fb9ead4db9ccd852b8fcf4315cadcfa6c30d9545d3f3</citedby><cites>FETCH-LOGICAL-c392t-7ded64423d1e6e943ef97fb9ead4db9ccd852b8fcf4315cadcfa6c30d9545d3f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0272771407003976$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20168313$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Tavares, P.C.</creatorcontrib><creatorcontrib>Kelly, A.</creatorcontrib><creatorcontrib>Maia, R.</creatorcontrib><creatorcontrib>Lopes, R.J.</creatorcontrib><creatorcontrib>Serrão Santos, R.</creatorcontrib><creatorcontrib>Pereira, M.E.</creatorcontrib><creatorcontrib>Duarte, A.C.</creatorcontrib><creatorcontrib>Furness, R.W.</creatorcontrib><title>Variation in the mobilization of mercury into Black-winged Stilt Himantopus himantopus chicks in coastal saltpans, as revealed by stable isotopes</title><title>Estuarine, coastal and shelf science</title><description>Causes of variation in mobilization of mercury into Black-winged Stilt
Himantopus himantopus chicks were studied through analysis of stable isotope ratios of carbon and nitrogen. Blood and breast feathers were collected from chicks in coastal saltpans during successive breeding seasons. Detritus samples and potential prey (macroinvertebrates) were also collected. Total mercury concentrations and stable isotope signatures were measured using atomic absorption spectroscopy and isotope ratio mass spectrometry respectively. Mercury levels in Chironomidae, Corixidae and Hydrophilidae correlated with mercury levels in chick feathers. Differences of δ
15N signatures between macroinvertebrate groups indicated that they belong to different trophic levels. δ
15N signatures of invertebrates correlated with mercury levels in invertebrates and chicks, but not with δ
15N signatures in chicks. Between-group and between-site differences of δ
15N signatures and mercury levels in invertebrates suggested that they contribute differently to mercury mobilization into chicks, and their relative contribution depends on prey availability in each site. Inter-site differences in the biomagnification factor reinforced that idea. δ
13C signatures in invertebrates marked a larger range of carbon sources than just detritus. Variation of water inflow regime and prey availability may cause between-group and between-site differences of δ
13C signatures in prey. Discrepancies between feather and blood for δ
13C signatures in Praias-Sado and Vaia suggested that temporal variation of prey availability may be the main factor affecting mercury mobilization into chicks in both those cases, since their water inflow regimes are the same. The lowest levels of δ
13C signatures in Vau suggested that water inflow regime may be the main factor in this case, since no discrepancy existed in δ
13C signatures between blood and feather.</description><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Aves</subject><subject>Biological and medical sciences</subject><subject>birds</subject><subject>Brackish</subject><subject>Brackish water ecosystems</subject><subject>Chironomidae</subject><subject>Corixidae</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Himantopus himantopus</subject><subject>Hydrophilidae</subject><subject>macroinvertebrates</subject><subject>mercury</subject><subject>saltpans</subject><subject>stable isotopes</subject><subject>Stilt</subject><subject>Synecology</subject><subject>Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution</subject><issn>0272-7714</issn><issn>1096-0015</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqFkc2OEzEQhEcIJMLCC3DyBU7M4J-ZzFjiAitgkVbiwM_V8rTbxFlnHNzOovAWvDGOsoIbnNzq-qosdTXNU8E7wcX65bZDIOok52PHdcfFcK9ZCa7XLa_z_WbF5SjbcRT9w-YR0bZuxaDkqvn11eZgS0gLCwsrG2S7NIcYfp53ybMdZjjkY5VLYm-ihZv2R1i-oWOfSoiFXYWdrdL-QGzzd4RNgBs6ZUKyVGxkZGPZ24VeMEss4y3aWDPmI6vqHJEFStWK9Lh54G0kfHL3XjRf3r39fHnVXn98_-Hy9XULSsvSjg7duu-lcgLXqHuFXo9-1mhd72YN4KZBzpMH3ysxgHXg7RoUd3roB6e8umien3P3OX0_IBWzCwQYo10wHchIPmktOP8vKPppmLSQFZRnEHIiyujNPteL5KMR3JxqMltzqsmcajJcm1pNNT27S7cENvpsFwj0xymrbVJCVe7VmcN6k9uA2RAEXABdyAjFuBT-9c1v_e2tJA</recordid><startdate>20080320</startdate><enddate>20080320</enddate><creator>Tavares, P.C.</creator><creator>Kelly, A.</creator><creator>Maia, R.</creator><creator>Lopes, R.J.</creator><creator>Serrão Santos, R.</creator><creator>Pereira, M.E.</creator><creator>Duarte, A.C.</creator><creator>Furness, R.W.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7SN</scope><scope>7TN</scope><scope>7U6</scope><scope>F1W</scope><scope>H95</scope><scope>H97</scope><scope>L.G</scope></search><sort><creationdate>20080320</creationdate><title>Variation in the mobilization of mercury into Black-winged Stilt Himantopus himantopus chicks in coastal saltpans, as revealed by stable isotopes</title><author>Tavares, P.C. ; Kelly, A. ; Maia, R. ; Lopes, R.J. ; Serrão Santos, R. ; Pereira, M.E. ; Duarte, A.C. ; Furness, R.W.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-7ded64423d1e6e943ef97fb9ead4db9ccd852b8fcf4315cadcfa6c30d9545d3f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Animal and plant ecology</topic><topic>Animal, plant and microbial ecology</topic><topic>Aves</topic><topic>Biological and medical sciences</topic><topic>birds</topic><topic>Brackish</topic><topic>Brackish water ecosystems</topic><topic>Chironomidae</topic><topic>Corixidae</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Himantopus himantopus</topic><topic>Hydrophilidae</topic><topic>macroinvertebrates</topic><topic>mercury</topic><topic>saltpans</topic><topic>stable isotopes</topic><topic>Stilt</topic><topic>Synecology</topic><topic>Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tavares, P.C.</creatorcontrib><creatorcontrib>Kelly, A.</creatorcontrib><creatorcontrib>Maia, R.</creatorcontrib><creatorcontrib>Lopes, R.J.</creatorcontrib><creatorcontrib>Serrão Santos, R.</creatorcontrib><creatorcontrib>Pereira, M.E.</creatorcontrib><creatorcontrib>Duarte, A.C.</creatorcontrib><creatorcontrib>Furness, R.W.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Ecology Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Sustainability Science Abstracts</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) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Estuarine, coastal and shelf science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tavares, P.C.</au><au>Kelly, A.</au><au>Maia, R.</au><au>Lopes, R.J.</au><au>Serrão Santos, R.</au><au>Pereira, M.E.</au><au>Duarte, A.C.</au><au>Furness, R.W.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Variation in the mobilization of mercury into Black-winged Stilt Himantopus himantopus chicks in coastal saltpans, as revealed by stable isotopes</atitle><jtitle>Estuarine, coastal and shelf science</jtitle><date>2008-03-20</date><risdate>2008</risdate><volume>77</volume><issue>1</issue><spage>65</spage><epage>76</epage><pages>65-76</pages><issn>0272-7714</issn><eissn>1096-0015</eissn><coden>ECSSD3</coden><abstract>Causes of variation in mobilization of mercury into Black-winged Stilt
Himantopus himantopus chicks were studied through analysis of stable isotope ratios of carbon and nitrogen. Blood and breast feathers were collected from chicks in coastal saltpans during successive breeding seasons. Detritus samples and potential prey (macroinvertebrates) were also collected. Total mercury concentrations and stable isotope signatures were measured using atomic absorption spectroscopy and isotope ratio mass spectrometry respectively. Mercury levels in Chironomidae, Corixidae and Hydrophilidae correlated with mercury levels in chick feathers. Differences of δ
15N signatures between macroinvertebrate groups indicated that they belong to different trophic levels. δ
15N signatures of invertebrates correlated with mercury levels in invertebrates and chicks, but not with δ
15N signatures in chicks. Between-group and between-site differences of δ
15N signatures and mercury levels in invertebrates suggested that they contribute differently to mercury mobilization into chicks, and their relative contribution depends on prey availability in each site. Inter-site differences in the biomagnification factor reinforced that idea. δ
13C signatures in invertebrates marked a larger range of carbon sources than just detritus. Variation of water inflow regime and prey availability may cause between-group and between-site differences of δ
13C signatures in prey. Discrepancies between feather and blood for δ
13C signatures in Praias-Sado and Vaia suggested that temporal variation of prey availability may be the main factor affecting mercury mobilization into chicks in both those cases, since their water inflow regimes are the same. The lowest levels of δ
13C signatures in Vau suggested that water inflow regime may be the main factor in this case, since no discrepancy existed in δ
13C signatures between blood and feather.</abstract><cop>London</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.ecss.2007.09.015</doi><tpages>12</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0272-7714 |
| ispartof | Estuarine, coastal and shelf science, 2008-03, Vol.77 (1), p.65-76 |
| issn | 0272-7714 1096-0015 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_20899100 |
| source | Elsevier ScienceDirect Journals |
| subjects | Animal and plant ecology Animal, plant and microbial ecology Aves Biological and medical sciences birds Brackish Brackish water ecosystems Chironomidae Corixidae Fundamental and applied biological sciences. Psychology Himantopus himantopus Hydrophilidae macroinvertebrates mercury saltpans stable isotopes Stilt Synecology Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution |
| title | Variation in the mobilization of mercury into Black-winged Stilt Himantopus himantopus chicks in coastal saltpans, as revealed by stable isotopes |
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