<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <title>UTas ePrints - Nutrient inputs from seabirds and humans on a populated coral cay</title> <script type="text/javascript" src="http://eprints.utas.edu.au/javascript/auto.js"><!-- padder --></script> <style type="text/css" media="screen">@import url(http://eprints.utas.edu.au/style/auto.css);</style> <style type="text/css" media="print">@import url(http://eprints.utas.edu.au/style/print.css);</style> <link rel="icon" href="/images/eprints/favicon.ico" type="image/x-icon" /> <link rel="shortcut icon" href="/images/eprints/favicon.ico" type="image/x-icon" /> <link rel="Top" href="http://eprints.utas.edu.au/" /> <link rel="Search" href="http://eprints.utas.edu.au/cgi/search" /> <meta content="Staunton Smith, Jonathan" name="eprints.creators_name" /> <meta content="Johnson, Craig R." name="eprints.creators_name" /> <meta name="eprints.creators_id" /> <meta content="Craig.Johnson@utas.edu.au" name="eprints.creators_id" /> <meta content="article" name="eprints.type" /> <meta content="2007-06-24" name="eprints.datestamp" /> <meta content="2008-02-04T06:08:41Z" name="eprints.lastmod" /> <meta content="show" name="eprints.metadata_visibility" /> <meta content="Nutrient inputs from seabirds and humans on a populated coral cay" name="eprints.title" /> <meta content="pub" name="eprints.ispublished" /> <meta content="270702" name="eprints.subjects" /> <meta content="public" name="eprints.full_text_status" /> <meta content="Seabirds Guano; Sewage Inorganic nutrients; Eutrophication; Coral reefs " name="eprints.keywords" /> <meta content="Inputs of inorganic nutnents in 1992 from seabirds (white-capped noddy and wedgetail shearwater, maximum of ca 80 000 breeding pairs) are compared to inputs from humans (97 700 person days) on Heron Island at the southern end of the Great Barrier Reef, Australia. We estimated that nod- dies deposited ca 107 t and shearwaters ca 22 t, of fresh guano The composition of fresh noddy guano was 7.3 % nitrogen 1.5 % phosphorus. 60 % moisture and 31.2 % other substances. Assuming a similar composition for shearwaters the total annual deposition of guano contained 9.4 t nitrogen and 1.9 t phosphorus. Experiments examining effects of ageing of guano indicated a large decrease in total nitrogen in guano under humid conditions over 4 d as a result of volatilisation of NH3. Under natural conditions most of the deposited nitrogen is likely to be lost as NH, and a relatively small fraction ot the soluble component leached into the cay, but the precise dynamics will depend on ramfall and wind patterns. Phosphorus was not volatilised from guano under any expenmental conditions. Although inputs of nitrogen and phosphorus from human sewage into the cay system (ca 0.3 t of each) were much less than that from birds, all nutrients from humans are released in liquid form and percolate directly into the cay. Significant seasonal and tidal variations in standing concentratlons of NH3 oxidised forms of nitrogen (NO2,+NO3), and PO4, were detected in the water column around the island. Trends of higher mean concentrations of all nutrients in summer than in winter, and higher concentrations at low tide than at high tide except at sites close to the Island where nutrient levels were high independent of tide suggest that nutrients may be transported from guano on Heron Island into the water immediately surrounding the island The exact fate and mechanisms of transport of all nutnents require further attention." name="eprints.abstract" /> <meta content="1995-08" name="eprints.date" /> <meta content="published" name="eprints.date_type" /> <meta content="Marine Ecology Progress Series" name="eprints.publication" /> <meta content="124" name="eprints.volume" /> <meta content="189-200" name="eprints.pagerange" /> <meta content="UNSPECIFIED" name="eprints.thesis_type" /> <meta content="TRUE" name="eprints.refereed" /> <meta content="0171-8630" name="eprints.issn" /> <meta content="http://www.int-res.com/abstracts/meps/v124/p189-200/" name="eprints.official_url" /> <meta content="Allaway WG, Ashford AE (1984) Nutrient input by seabirds to the forest on a coral island of the Great Barrier Reef. Mar Ecol Prog Ser 19:297-298 Anon (1992a) Heron Island plant performance, February 1992. Report to P&O Resorts. Simmonds and Bristow Pty Ltd, Brisbane Anon (1992b) Heron Island plant performance, March 1992. Report to P&O Resorts Simmonds and Bristow Pty Ltd, Brisbane Barnes A, Hill GJE (1989) Census and distribution of black noddy Anous mlnutus nests on Heron Island, November 1985. Emu 89:129-134 Bedard J , Therriault JC, Berube J (1980) Assessment of importance of nutrient recycling by seabirds in the Lawrence Estuary. Can J Fish Aquat Sci 37:583-588 Bell PRF (1992) Eutrophication and coral reefs -some exam- ples in the Great Barrier Reef Lagoon. Wat Res 26553-568 Bosman AL, Du Toit JT, Hockey PAR, Branch GM (1985) field experiment demonstrating the influence of seabird guano on intertidal primary production. Estuar coast Shelf Sci 23:283-294 Bosman AL, Hockey PAR (1986) Seabird guano as a determi- nant of rocky intertidal community structure. Mar Ecol Prog Ser 32:247-257 Bureau of Meteorology (1991/1992) Australian data archives for meteorology. Bureau of Meteorology, Brisbane Canter LW, Knox RC (1985) Septic system effects on ground- water quality. Lewis Publishers, Inc, Michigan Copeman PR, Dillman FJ (1937) Changes in the composition of guano during storage. J Agric Sci 27:178-187 Day RW, Quinn GP (1989) Comparison of treatments after analysis of varlance in ecology Ecol Monogr 59:433-463 D'Elia CF, Wiebe WJ (1990) Biogeochemical nutrient cycles coral-reef ecosystems. In: Dubinsky Z (ed) Ecosystems the world 25: coral reefs. Elsevier, Amsterdam, p 49-74 Furnas MJ (1988) Water column nutrient processes in Great Barrier Reef waters. In: Baldwin CL (ed) Workshop nutrients in the Great Barrier Reef region. Great Barrier Reef Marine Park Authority, Townsville, p 45-54 Furnas MJ (1990) The behavior of nutrients in tropical aquatic ecosystems. In: Connell DW, Hawker DW (eds) Pollution in tropical aquatic systems. CRC Press, London, p 30-65 Hill GJE, Barnes A (1989) Census and distribution of wedge- tailed shearwater Puffinus paciflcus burrows on Heron Island, November 1985. Emu 89:135-139 Hutchinson GE (1950) Survey of contemporary knowledge biogeochemistry. 3. The biogeochemistry of vertebrate excretion. Bull Am Mus Nat HHist 96:l-554 Kelleher G (1988) Opening address. In: Baldwin CL (ed) Workshop on nutrients in the Great Barrier Reef region. Great Barrier Reef Marine Park Authority, Townsville, 1-10 Kikkawa J (1970) Birds recorded at Heron Island. Sunbird 34-47 Kinsey DW (1988) Responses of coral reef systems to elevated nutrient levels. In: Baldwin CL (ed) Workshop on nutrients in the Great Barrier Reef Region. Great Barrier Reef Marine Park Authority, Townsville, p 55-65 Kinsey DW, Davies PJ (1979) Effects of elevated nitrogen and phosphorus on coral reef growth. J Am Soc Limnol Oceanogr 24:935-940 Krol A. Noordink M. Jell J , Chen D (1992) The Heron Island groundwater project. Proc 1992 Nat Conf Environ Engin, Gold Coast, Institute of Australian Engineers, Canberra Larkurn AWD, Kennedy IR. Muller WJ (1988) Nitrogen fixa- tion on a coral reef Mar Biol 98:143-155 Lindeboom HJ (1984) The nitrogen pathway in a penguin rookery. J Eco165:269-277 Ogden J (1979) Estimates of the population sizes of the black noddy and wedge-tailed shearwater at Heron Island 1978. Sunbird 10:33-39 Ottesen P (1988) Managing for the effects of increased ac- tivities in the Great Barner Reef Marine Park. Great Bar- rier Reef Marine Park Authority Staff Paper 8813, Townsville Peters RH (1983) The ecological implications of body size Cambridge University Press, New York Prove B (1988) Soil erosion research in cane fields on the wet tropical coast of north-east Queensland. In: Baldwin CL (ed) Workshop on nutrients in the Great Barrier Reef region. Great Barrier Reef Marine Park Authority, Townsville, p 30-32 Rasmussen C (1988) Effects of nutrients carried by mainland run-off on reefs on the Cairns Area: a research plan and preliminary results. In: Baldwin CL (ed) Workshop on nutrients in the Great Barrier Reef region. Great Barrier Reef Marine Park Authority, Townsville, p 66-91 Riley JP, Chester R (1971) Introduction to marine chemistry. Academic Press, Liverpool, p 152- 179 Rump HH, Krist H (1988) Laboratory manual for the exam- intation of water, waste water and soil. VCH Publishers. New York Science and Engineering Research Council (1992) The star almanac for land surveyors for the year 1992. Her Majesty's Statistical Office, London Serventy DL, Serventy VN, Warnham J (1971) Handbook Australian sea-birds. Reed, Sydney Smith SV, Kimmerer WJ, Laws EA, Brock RE. Walsh TW (1981) Kaneh oe Bay sewage diversion experiment: per- spectives on ecosystem responses to nutritional perturba- tion. Pacif Sci 35:279-285 Valiela I (1984) Marine ecological processes. Springer, Berlin, p 312-335 Wilkinson CR (1993) Coral reefs of the world are facing wide- spread devastation: can we prevent this through sustain- able management practices? Proc 7th int Coral Reef Symp 1:ll-21" name="eprints.referencetext" /> <meta content="Staunton Smith, Jonathan and Johnson, Craig R. (1995) Nutrient inputs from seabirds and humans on a populated coral cay. Marine Ecology Progress Series, 124 . pp. 189-200. ISSN 0171-8630" name="eprints.citation" /> <meta content="http://eprints.utas.edu.au/1210/1/stauntonsmith.pdf" name="eprints.document_url" /> <link rel="schema.DC" href="http://purl.org/DC/elements/1.0/" /> <meta content="Nutrient inputs from seabirds and humans on a populated coral cay" name="DC.title" /> <meta content="Staunton Smith, Jonathan" name="DC.creator" /> <meta content="Johnson, Craig R." name="DC.creator" /> <meta content="270702 Marine and Estuarine Ecology (incl. Marine Ichthyology)" name="DC.subject" /> <meta content="Inputs of inorganic nutnents in 1992 from seabirds (white-capped noddy and wedgetail shearwater, maximum of ca 80 000 breeding pairs) are compared to inputs from humans (97 700 person days) on Heron Island at the southern end of the Great Barrier Reef, Australia. We estimated that nod- dies deposited ca 107 t and shearwaters ca 22 t, of fresh guano The composition of fresh noddy guano was 7.3 % nitrogen 1.5 % phosphorus. 60 % moisture and 31.2 % other substances. Assuming a similar composition for shearwaters the total annual deposition of guano contained 9.4 t nitrogen and 1.9 t phosphorus. Experiments examining effects of ageing of guano indicated a large decrease in total nitrogen in guano under humid conditions over 4 d as a result of volatilisation of NH3. Under natural conditions most of the deposited nitrogen is likely to be lost as NH, and a relatively small fraction ot the soluble component leached into the cay, but the precise dynamics will depend on ramfall and wind patterns. Phosphorus was not volatilised from guano under any expenmental conditions. Although inputs of nitrogen and phosphorus from human sewage into the cay system (ca 0.3 t of each) were much less than that from birds, all nutrients from humans are released in liquid form and percolate directly into the cay. Significant seasonal and tidal variations in standing concentratlons of NH3 oxidised forms of nitrogen (NO2,+NO3), and PO4, were detected in the water column around the island. Trends of higher mean concentrations of all nutrients in summer than in winter, and higher concentrations at low tide than at high tide except at sites close to the Island where nutrient levels were high independent of tide suggest that nutrients may be transported from guano on Heron Island into the water immediately surrounding the island The exact fate and mechanisms of transport of all nutnents require further attention." name="DC.description" /> <meta content="1995-08" name="DC.date" /> <meta content="Article" name="DC.type" /> <meta content="PeerReviewed" name="DC.type" /> <meta content="application/pdf" name="DC.format" /> <meta content="http://eprints.utas.edu.au/1210/1/stauntonsmith.pdf" name="DC.identifier" /> <meta content="http://www.int-res.com/abstracts/meps/v124/p189-200/" name="DC.relation" /> <meta content="Staunton Smith, Jonathan and Johnson, Craig R. (1995) Nutrient inputs from seabirds and humans on a populated coral cay. Marine Ecology Progress Series, 124 . pp. 189-200. ISSN 0171-8630" name="DC.identifier" /> <meta content="http://eprints.utas.edu.au/1210/" name="DC.relation" /> <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1210/BibTeX/epprod-eprint-1210.bib" title="BibTeX" type="text/plain" /> <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1210/ContextObject/epprod-eprint-1210.xml" title="OpenURL ContextObject" type="text/xml" /> <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1210/ContextObject::Dissertation/epprod-eprint-1210.xml" title="OpenURL Dissertation" type="text/xml" /> <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1210/ContextObject::Journal/epprod-eprint-1210.xml" title="OpenURL Journal" type="text/xml" /> <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1210/DC/epprod-eprint-1210.txt" title="Dublin Core" type="text/plain" /> <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1210/DIDL/epprod-eprint-1210.xml" title="DIDL" type="text/xml" /> <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1210/EndNote/epprod-eprint-1210.enw" title="EndNote" type="text/plain" /> <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1210/HTML/epprod-eprint-1210.html" title="HTML Citation" type="text/html; charset=utf-8" /> <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1210/METS/epprod-eprint-1210.xml" title="METS" type="text/xml" /> <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1210/MODS/epprod-eprint-1210.xml" title="MODS" type="text/xml" /> <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1210/RIS/epprod-eprint-1210.ris" title="Reference Manager" type="text/plain" /> <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1210/Refer/epprod-eprint-1210.refer" title="Refer" type="text/plain" /> <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1210/Simple/epprod-eprint-1210text" title="Simple Metadata" type="text/plain" /> <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1210/Text/epprod-eprint-1210.txt" title="ASCII Citation" type="text/plain; charset=utf-8" /> <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/1210/XML/epprod-eprint-1210.xml" title="EP3 XML" type="text/xml" /> </head> <body bgcolor="#ffffff" text="#000000" onLoad="loadRoutine(); MM_preloadImages('images/eprints/ePrints_banner_r5_c5_f2.gif','images/eprints/ePrints_banner_r5_c7_f2.gif','images/eprints/ePrints_banner_r5_c8_f2.gif','images/eprints/ePrints_banner_r5_c9_f2.gif','images/eprints/ePrints_banner_r5_c10_f2.gif','images/eprints/ePrints_banner_r5_c11_f2.gif','images/eprints/ePrints_banner_r6_c4_f2.gif')"> <div class="ep_noprint"><noscript><style type="text/css">@import url(http://eprints.utas.edu.au/style/nojs.css);</style></noscript></div> <table width="795" border="0" cellspacing="0" cellpadding="0"> <tr> <td><script language="JavaScript1.2">mmLoadMenus();</script> <table border="0" cellpadding="0" cellspacing="0" width="795"> <!-- fwtable fwsrc="eprints_banner_final2.png" fwbase="ePrints_banner.gif" fwstyle="Dreamweaver" fwdocid = "1249563342" fwnested="0" --> <tr> <td><img src="/images/eprints/spacer.gif" width="32" height="1" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="104" height="1" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="44" height="1" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="105" height="1" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="41" height="1" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="16" height="1" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="82" height="1" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="69" height="1" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="98" height="1" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="1" height="1" border="0" alt="" /></td> </tr> <tr> <td colspan="12"><img name="ePrints_banner_r1_c1" src="/images/eprints/ePrints_banner_r1_c1.gif" width="795" height="10" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="1" height="10" border="0" alt="" /></td> </tr> <tr> <td rowspan="6"><img name="ePrints_banner_r2_c1" src="/images/eprints/ePrints_banner_r2_c1.gif" width="32" height="118" border="0" alt="" /></td> <td rowspan="5"><a href="http://www.utas.edu.au/"><img name="ePrints_banner_r2_c2" src="/images/eprints/ePrints_banner_r2_c2.gif" width="104" height="103" border="0" alt="" /></a></td> <td colspan="10"><img name="ePrints_banner_r2_c3" src="/images/eprints/ePrints_banner_r2_c3.gif" width="659" height="41" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="1" height="41" border="0" alt="" /></td> </tr> <tr> <td colspan="3"><a href="http://eprints.utas.edu.au/"><img name="ePrints_banner_r3_c3" src="/images/eprints/ePrints_banner_r3_c3.gif" width="190" height="31" border="0" alt="" /></a></td> <td rowspan="2" colspan="7"><img name="ePrints_banner_r3_c6" src="/images/eprints/ePrints_banner_r3_c6.gif" width="469" height="37" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="1" height="31" border="0" alt="" /></td> </tr> <tr> <td colspan="3"><img name="ePrints_banner_r4_c3" src="/images/eprints/ePrints_banner_r4_c3.gif" width="190" height="6" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="1" height="6" border="0" alt="" /></td> </tr> <tr> <td colspan="2"><img name="ePrints_banner_r5_c3" src="/images/eprints/ePrints_banner_r5_c3.gif" width="149" height="1" border="0" alt="" /></td> <td rowspan="2" colspan="2"><a href="/information.html" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821132634_0,0,25,null,'ePrints_banner_r5_c5');MM_swapImage('ePrints_banner_r5_c5','','/images/eprints/ePrints_banner_r5_c5_f2.gif',1);"><img name="ePrints_banner_r5_c5" src="/images/eprints/ePrints_banner_r5_c5.gif" width="57" height="25" border="0" alt="About" /></a></td> <td rowspan="2"><a href="/view/" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133021_1,0,25,null,'ePrints_banner_r5_c7');MM_swapImage('ePrints_banner_r5_c7','','/images/eprints/ePrints_banner_r5_c7_f2.gif',1);"><img name="ePrints_banner_r5_c7" src="/images/eprints/ePrints_banner_r5_c7.gif" width="68" height="25" border="0" alt="Browse" /></a></td> <td rowspan="2"><a href="/perl/search/simple" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133201_2,0,25,null,'ePrints_banner_r5_c8');MM_swapImage('ePrints_banner_r5_c8','','/images/eprints/ePrints_banner_r5_c8_f2.gif',1);"><img name="ePrints_banner_r5_c8" src="/images/eprints/ePrints_banner_r5_c8.gif" width="68" height="25" border="0" alt="Search" /></a></td> <td rowspan="2"><a href="/perl/register" onMouseOut="MM_swapImgRestore();MM_startTimeout();" onMouseOver="MM_showMenu(window.mm_menu_1018171924_3,0,25,null,'ePrints_banner_r5_c9');MM_swapImage('ePrints_banner_r5_c9','','/images/eprints/ePrints_banner_r5_c9_f2.gif',1);"><img name="ePrints_banner_r5_c9" src="/images/eprints/ePrints_banner_r5_c9.gif" width="68" height="25" border="0" alt="register" /></a></td> <td rowspan="2"><a href="/perl/users/home" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133422_4,0,25,null,'ePrints_banner_r5_c10');MM_swapImage('ePrints_banner_r5_c10','','/images/eprints/ePrints_banner_r5_c10_f2.gif',1);"><img name="ePrints_banner_r5_c10" src="/images/eprints/ePrints_banner_r5_c10.gif" width="82" height="25" border="0" alt="user area" /></a></td> <td rowspan="2"><a href="/help/" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133514_5,0,25,null,'ePrints_banner_r5_c11');MM_swapImage('ePrints_banner_r5_c11','','/images/eprints/ePrints_banner_r5_c11_f2.gif',1);"><img name="ePrints_banner_r5_c11" src="/images/eprints/ePrints_banner_r5_c11.gif" width="69" height="25" border="0" alt="Help" /></a></td> <td rowspan="3" colspan="4"><img name="ePrints_banner_r5_c12" src="/images/eprints/ePrints_banner_r5_c12.gif" width="98" height="40" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="1" height="1" border="0" alt="" /></td> </tr> <tr> <td rowspan="2"><img name="ePrints_banner_r6_c3" src="/images/eprints/ePrints_banner_r6_c3.gif" width="44" height="39" border="0" alt="ePrints home" /></td> <td><a href="/" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('ePrints_banner_r6_c4','','/images/eprints/ePrints_banner_r6_c4_f2.gif',1);"><img name="ePrints_banner_r6_c4" src="/images/eprints/ePrints_banner_r6_c4.gif" width="105" height="24" border="0" alt="ePrints home" /></a></td> <td><img src="/images/eprints/spacer.gif" width="1" height="24" border="0" alt="" /></td> </tr> <tr> <td><img name="ePrints_banner_r7_c2" src="/images/eprints/ePrints_banner_r7_c2.gif" width="104" height="15" border="0" alt="" /></td> <td colspan="8"><img name="ePrints_banner_r7_c4" src="/images/eprints/ePrints_banner_r7_c4.gif" width="517" height="15" border="0" alt="" /></td> <td><img src="/images/eprints/spacer.gif" width="1" height="15" border="0" alt="" /></td> </tr> </table></td> </tr> <tr><td><table width="100%" style="font-size: 90%; border: solid 1px #ccc; padding: 3px"><tr> <td align="left"><a href="http://eprints.utas.edu.au/cgi/users/home">Login</a> | <a href="http://eprints.utas.edu.au/cgi/register">Create Account</a></td> <td align="right" style="white-space: nowrap"> <form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/search" style="display:inline"> <input class="ep_tm_searchbarbox" size="20" type="text" name="q" /> <input class="ep_tm_searchbarbutton" value="Search" type="submit" name="_action_search" /> <input type="hidden" name="_order" value="bytitle" /> <input type="hidden" name="basic_srchtype" value="ALL" /> <input type="hidden" name="_satisfyall" value="ALL" /> </form> </td> </tr></table></td></tr> <tr> <td class="toplinks"><!-- InstanceBeginEditable name="content" --> <div align="center"> <table width="720" class="ep_tm_main"><tr><td align="left"> <h1 class="ep_tm_pagetitle">Nutrient inputs from seabirds and humans on a populated coral cay</h1> <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Staunton Smith, Jonathan</span> and <span class="person_name">Johnson, Craig R.</span> (1995) <xhtml:em>Nutrient inputs from seabirds and humans on a populated coral cay.</xhtml:em> Marine Ecology Progress Series, 124 . pp. 189-200. ISSN 0171-8630</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a onmouseover="EPJS_ShowPreview( event, 'doc_preview_1554' );" onmouseout="EPJS_HidePreview( event, 'doc_preview_1554' );" href="http://eprints.utas.edu.au/1210/1/stauntonsmith.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" border="0" class="ep_doc_icon" /></a><div class="ep_preview" id="doc_preview_1554"><table><tr><td><img alt="" src="http://eprints.utas.edu.au/1210/thumbnails/1/preview.png" border="0" class="ep_preview_image" /><div class="ep_preview_title">Preview</div></td></tr></table></div></td><td valign="top"><a href="http://eprints.utas.edu.au/1210/1/stauntonsmith.pdf"><span class="ep_document_citation">PDF</span></a> - Requires a PDF viewer<br />975Kb</td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://www.int-res.com/abstracts/meps/v124/p189-200/">http://www.int-res.com/abstracts/meps/v124/p189-200/</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">Inputs of inorganic nutnents in 1992 from seabirds (white-capped noddy and wedgetail shearwater, maximum of ca 80 000 breeding pairs) are compared to inputs from humans (97 700 person days) on Heron Island at the southern end of the Great Barrier Reef, Australia. We estimated that nod- dies deposited ca 107 t and shearwaters ca 22 t, of fresh guano The composition of fresh noddy guano was 7.3 % nitrogen 1.5 % phosphorus. 60 % moisture and 31.2 % other substances. Assuming a similar composition for shearwaters the total annual deposition of guano contained 9.4 t nitrogen and 1.9 t phosphorus. Experiments examining effects of ageing of guano indicated a large decrease in total nitrogen in guano under humid conditions over 4 d as a result of volatilisation of NH3. Under natural conditions most of the deposited nitrogen is likely to be lost as NH, and a relatively small fraction ot the soluble component leached into the cay, but the precise dynamics will depend on ramfall and wind patterns. Phosphorus was not volatilised from guano under any expenmental conditions. Although inputs of nitrogen and phosphorus from human sewage into the cay system (ca 0.3 t of each) were much less than that from birds, all nutrients from humans are released in liquid form and percolate directly into the cay. Significant seasonal and tidal variations in standing concentratlons of NH3 oxidised forms of nitrogen (NO2,+NO3), and PO4, were detected in the water column around the island. Trends of higher mean concentrations of all nutrients in summer than in winter, and higher concentrations at low tide than at high tide except at sites close to the Island where nutrient levels were high independent of tide suggest that nutrients may be transported from guano on Heron Island into the water immediately surrounding the island The exact fate and mechanisms of transport of all nutnents require further attention.</p></div><table style="margin-bottom: 1em" border="0" cellpadding="3" class="not_ep_block"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">Seabirds Guano; Sewage Inorganic nutrients; Eutrophication; Coral reefs </td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/270702.html">270000 Biological Sciences > 270700 Ecology and Evolution > 270702 Marine and Estuarine Ecology (incl. Marine Ichthyology)</a></td></tr><tr><th valign="top" class="ep_row">Collections:</th><td valign="top" class="ep_row">UNSPECIFIED</td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">1210</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Professor Craig R. Johnson</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">24 Jun 2007</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">04 Feb 2008 17:08</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=1210;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&eprintid=1210">item control page</a></p> </td></tr></table> </div> <!-- InstanceEndEditable --></td> </tr> <tr> <td><!-- #BeginLibraryItem "/Library/footer_eprints.lbi" --> <table width="795" border="0" align="left" cellpadding="0" class="footer"> <tr valign="top"> <td colspan="2"><div align="center"><a href="http://www.utas.edu.au">UTAS home</a> | <a href="http://www.utas.edu.au/library/">Library home</a> | <a href="/">ePrints home</a> | <a href="/contact.html">contact</a> | <a href="/information.html">about</a> | <a href="/view/">browse</a> | <a href="/perl/search/simple">search</a> | <a href="/perl/register">register</a> | <a href="/perl/users/home">user area</a> | <a href="/help/">help</a></div><br /></td> </tr> <tr><td colspan="2"><p><img src="/images/eprints/footerline.gif" width="100%" height="4" /></p></td></tr> <tr valign="top"> <td width="68%" class="footer">Authorised by the University Librarian<br /> © University of Tasmania ABN 30 764 374 782<br /> <a href="http://www.utas.edu.au/cricos/">CRICOS Provider Code 00586B</a> | <a href="http://www.utas.edu.au/copyright/copyright_disclaimers.html">Copyright & Disclaimers</a> | <a href="http://www.utas.edu.au/accessibility/index.html">Accessibility</a> | <a href="http://eprints.utas.edu.au/feedback/">Site Feedback</a> </td> <td width="32%"><div align="right"> <p align="right" class="NoPrint"><a href="http://www.utas.edu.au/"><img src="http://www.utas.edu.au/shared/logos/unioftasstrip.gif" alt="University of Tasmania Home Page" width="260" height="16" border="0" align="right" /></a></p> <p align="right" class="NoPrint"><a href="http://www.utas.edu.au/"><br /> </a></p> </div></td> </tr> <tr valign="top"> <td><p> </p></td> <td><div align="right"><span class="NoPrint"><a href="http://www.eprints.org/software/"><img src="/images/eprintslogo.gif" alt="ePrints logo" width="77" height="29" border="0" align="bottom" /></a></span></div></td> </tr> </table> <!-- #EndLibraryItem --> <div align="center"></div></td> </tr> </table> </body> </html>