{"id":20,"date":"2024-04-04T08:54:51","date_gmt":"2024-04-04T05:54:51","guid":{"rendered":"https:\/\/sisu.ut.ee\/biopohikool\/32-miks-toitumissuhted-puramiidi-kujuga\/"},"modified":"2024-04-04T08:56:57","modified_gmt":"2024-04-04T05:56:57","slug":"32-miks-toitumissuhted-puramiidi-kujuga","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/biopohikool\/32-miks-toitumissuhted-puramiidi-kujuga\/","title":{"rendered":"3.2. Miks on toitumissuhted p\u00fcramiidi kujuga?"},"content":{"rendered":"<p>\n\t<\/p><div class=\"ratio ratio-16x9 mb-3\"><div class=\"video-placeholder-wrapper video-placeholder-wrapper--16x9\">\n\t\t\t    <div class=\"video-placeholder d-flex justify-content-center align-items-center\">\n\t\t\t        <div class=\"overlay text-white p-2 w-100 text-center d-block justify-content-center align-items-center\">\n\t\t\t            <div>Kolmandate osapoolte sisu n\u00e4gemiseks palun n\u00f5ustu k\u00fcpsistega.<\/div>\n\t\t\t            <button class=\"btn btn-secondary btn-sm mt-1 consent-change\">Muuda n\u00f5usolekut<\/button>\n\t\t\t        <\/div>\n\t\t\t    <\/div>\n\t\t\t<\/div>\n<\/div>\n\n<p>\n\tToiduv\u00f5rgud annavad toitumissuhete kohta rohkem informatsiooni kui toiduahelad, siiski n\u00e4itavad nad vaid seda, kes keda s\u00f6\u00f6b. Kumbki neist ei anna infot selle kohta, milline on organismide arvukus v\u00f5i biomass \u00f6kos\u00fcsteemis.\u00a0 Seep\u00e4rast esitatakse toitumissuhteid ka p\u00fcramiidina, milles organismid paigutatakse eri astmetele vastavalt nende kohale toiduahelas: alumisel astmel\u00a0tootjad\u00a0(taimed), teisel\u00a0taimtoidulised\u00a0loomad\u00a0(I astme tarbijad) ja k\u00f5rgematel\u00a0loomtoidulised loomad\u00a0(kiskjad).\u00a0\n<\/p>\n<p>\n\t\u00a0\n<\/p>\n<h4>\n\tMida n\u00e4itab arvukuse p\u00fcramiid?<br>\n<\/h4>\n<p dir=\"ltr\">\n\tK\u00f5ige lihtsam \u00f6koloogiline p\u00fcramiid on arvukuse p\u00fcramiid, mis n\u00e4itab igal astmel olevate organismide arv. P\u00fcramiidi astme laius n\u00e4itab, kui palju organisme mingil kindlal pindalal elab.\u00a0\n<\/p>\n<p dir=\"ltr\">\n\t<img loading=\"lazy\" decoding=\"async\" width=\"926\" height=\"403\" class=\"alignnone wp-image-175\" style=\"width: 600px;height: 261px\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/rebasedjanesed_tk.png\" title=\"Joonis 10. Enamasti on arvukuse p\u00fcramiid alt laienev (rohttaimed \u2192 j\u00e4nes \u2192 rebane).\" alt=\"Joonis 10. Enamasti on arvukuse p\u00fcramiid alt laienev (rohttaimed \u2192 j\u00e4nes \u2192 rebane).\" srcset=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/rebasedjanesed_tk.png 926w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/rebasedjanesed_tk-300x131.png 300w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/rebasedjanesed_tk-768x334.png 768w\" sizes=\"auto, (max-width: 926px) 100vw, 926px\">\n<\/p>\n<p dir=\"ltr\">\n\tKui palju v\u00e4ikeseid loomi toitub \u00fchel suurel taimel, on p\u00fcramiid teistsuguse kujuga (roosip\u00f5\u00f5sas\u00a0\u2192\u00a0lehet\u00e4id \u2192\u00a0lepatriinud). Seega v\u00f5ib arvukuse p\u00fcramiid olla teistsuguse kujuga:\n<\/p>\n<p dir=\"ltr\">\n\t<img loading=\"lazy\" decoding=\"async\" width=\"627\" height=\"415\" class=\"alignnone wp-image-176\" style=\"width: 400px;height: 265px\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/lepatriinud_puramiid.png\" title=\"Joonis 11. Teistsuguse kujuga arvukuse p\u00fcramiid (roosip\u00f5\u00f5sas \u2192 lehet\u00e4id \u2192 lepatriinud)\" alt=\"Joonis 11. Teistsuguse kujuga arvukuse p\u00fcramiid (roosip\u00f5\u00f5sas \u2192 lehet\u00e4id \u2192 lepatriinud)\" srcset=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/lepatriinud_puramiid.png 627w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/lepatriinud_puramiid-300x199.png 300w\" sizes=\"auto, (max-width: 627px) 100vw, 627px\">\n<\/p>\n<h4 dir=\"ltr\">\n\tMida n\u00e4itab biomassi p\u00fcramiid?<br>\n<\/h4>\n<p dir=\"ltr\">\n\t\u00a0\n<\/p>\n<p dir=\"ltr\">\n\tArvukuse p\u00fcramiidist paremini n\u00e4itab toitumissuhteid biomassi p\u00fcramiid.\u00a0\n<\/p>\n<p dir=\"ltr\">\n\tIga tase n\u00e4itab sinna kuuluvate organismide biomassi, s\u00f5ltumata nende arvukusest.\u00a0\n<\/p>\n<p dir=\"ltr\">\n\t<img loading=\"lazy\" decoding=\"async\" width=\"924\" height=\"413\" class=\"alignnone wp-image-177\" style=\"width: 600px;height: 268px\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/rebasedjanesed_kg.png\" title=\"Joonis 12. Biomassi p\u00fcramiid\" alt=\"Joonis 12. Biomassi p\u00fcramiid\" srcset=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/rebasedjanesed_kg.png 924w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/rebasedjanesed_kg-300x134.png 300w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/rebasedjanesed_kg-768x343.png 768w\" sizes=\"auto, (max-width: 924px) 100vw, 924px\">\n<\/p>\n<p dir=\"ltr\">\n\tElusorganismide massi nimetatakse biomassiks. Enamikus \u00f6kos\u00fcsteemides on biomassi p\u00fcramiid tavaliselt alt laiem. Kuid erandiks on veekogude \u00f6kos\u00fcsteemid, kus vetikate mass teatud pindala\u00fchiku kohta on v\u00e4iksem kui v\u00e4ikestel taimtoidulistel veeloomadel, sest vetikate arv on suur ja fotos\u00fcntees aktiivne.\n<\/p>\n<p dir=\"ltr\">\n\t<img loading=\"lazy\" decoding=\"async\" width=\"1206\" height=\"411\" class=\"alignnone wp-image-178\" style=\"width: 600px;height: 204px\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/veeloomade_pyramiid.png\" title=\"Joonis 13. Biomassi p\u00fcramiid veekogu \u00f6kos\u00fcsteemis.\" alt=\"Joonis 13. Biomassi p\u00fcramiid veekogu \u00f6kos\u00fcsteemis.\" srcset=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/veeloomade_pyramiid.png 1206w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/veeloomade_pyramiid-300x102.png 300w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/veeloomade_pyramiid-1024x349.png 1024w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/veeloomade_pyramiid-768x262.png 768w\" sizes=\"auto, (max-width: 1206px) 100vw, 1206px\">\n<\/p>\n<p dir=\"ltr\">\n\t\u00dche ja sama toiduahela (tamm\u00a0\u2192\u00a0r\u00f6\u00f6vik\u00a0\u2192\u00a0tihane \u2192\u00a0kull)\u00a0arvukuse ja biomassi p\u00fcramiidid v\u00f5ivad olla erinevad:\n<\/p>\n<table class=\"table table-hover\" align=\"center\" border=\"1\" cellpadding=\"5\" cellspacing=\"0\" style=\"width: 100%\">\n<thead>\n<tr>\n<th scope=\"col\">\n\t\t\t\tArvukuse p\u00fcramiid\n\t\t\t<\/th>\n<th scope=\"col\">\n\t\t\t\tBiomassi p\u00fcramiid\n\t\t\t<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"940\" height=\"981\" class=\"alignnone wp-image-179\" style=\"width: 500px;height: 522px\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/arvukusepyramiid.jpg\" title=\"Joonis 14. Arvukuse p\u00fcramiid\" alt=\"Joonis 14. Arvukuse p\u00fcramiid\" srcset=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/arvukusepyramiid.jpg 940w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/arvukusepyramiid-287x300.jpg 287w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/arvukusepyramiid-768x801.jpg 768w\" sizes=\"auto, (max-width: 940px) 100vw, 940px\">\n\t\t\t<\/td>\n<td>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"920\" height=\"982\" class=\"alignnone wp-image-180\" style=\"width: 500px;height: 534px\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/biomassi_pyramiid.jpg\" title=\"Joonis 15. Biomassi p\u00fcramiid\" alt=\"Joonis 15. Biomassi p\u00fcramiid\" srcset=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/biomassi_pyramiid.jpg 920w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/biomassi_pyramiid-281x300.jpg 281w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/biomassi_pyramiid-768x820.jpg 768w\" sizes=\"auto, (max-width: 920px) 100vw, 920px\">\n\t\t\t<\/td>\n<\/tr>\n<tr>\n<td>\n\t\t\t\t\u00dchel tammel v\u00f5ib elada tuhandeid r\u00f6\u00f6vikuid, kellest toituvad putuktoidulised linnud.\n\t\t\t<\/td>\n<td>\n\t\t\t\t\u00a0Vaatamata sellele, et r\u00f6\u00f6vikute arv on v\u00e4ga suur, on nende biomass ikkagi v\u00e4iksem kui tammel.\n\t\t\t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p dir=\"ltr\">\n\t\u00a0\n<\/p>\n<p>\n\t\u00a0\n<\/p>\n<h4>\n\tMida n\u00e4itab energiap\u00fcramiid?<br>\n<\/h4>\n<p>\n\tEnergiap\u00fcramiidid n\u00e4itavad, kui palju energiat l\u00e4bib iga troofilist taset aja\u00fchikus. J\u00e4rgmisele astmele antakse edasi ainult umbes 10% eelmiselt astmelt saadud energiat. Organismid kasutavad osa saadud energiast elutegevuseks (hingamiseks, liikumiseks, paljunemiseks jne), osa energiast eritatakse j\u00e4\u00e4kidena, suur osa energiast hajub soojusena keskkonda. Kuna toiduahela igal astmel kulub ligikaudu 90% energiast, ei saa toiduahel olla pikk: toiduahelas ja seega \u00f6koloogilises p\u00fcramiidis pole tavaliselt \u00fcle 5 astme, sest rohkematele energiat lihtsalt ei j\u00e4tku.\n<\/p>\n<table class=\"table table-hover\" border=\"0\" cellpadding=\"10\" cellspacing=\"0\" style=\"width: 100%\">\n<tbody>\n<tr>\n<td>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2448\" height=\"2448\" class=\"alignnone wp-image-181\" style=\"width: 500px;height: 500px\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/energiapuramiid.png\" title=\"Joonis 16. Energiap\u00fcramiid\" alt=\"Joonis 16. Energiap\u00fcramiid\" srcset=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/energiapuramiid.png 2448w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/energiapuramiid-300x300.png 300w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/energiapuramiid-1024x1024.png 1024w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/energiapuramiid-150x150.png 150w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/energiapuramiid-768x768.png 768w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/energiapuramiid-1536x1536.png 1536w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/energiapuramiid-2048x2048.png 2048w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/648\/energiapuramiid-1920x1920.png 1920w\" sizes=\"auto, (max-width: 2448px) 100vw, 2448px\">\n\t\t\t<\/td>\n<td>\n<p id=\"yui_3_17_2_1_1697303389591_83\">\n\t\t\t\t\t10% energiast kandub \u00fcle j\u00e4rgmisele troofilisele tasemele.\n\t\t\t\t<\/p>\n<p>\n\t\t\t\t\t\u00a0\n\t\t\t\t<\/p>\n<p>\n\t\t\t\t\t1 \u2013 tootjad (taimed)\n\t\t\t\t<\/p>\n<p id=\"yui_3_17_2_1_1697303389591_73\">\n\t\t\t\t\t2- I astme tarbijad (taimtoidulised)\n\t\t\t\t<\/p>\n<p>\n\t\t\t\t\t3 \u2013 II astme tarbijad (loomtoidulised)\n\t\t\t\t<\/p>\n<p>\n\t\t\t\t\t4- III astme tarbijad (loomtoidulised)\n\t\t\t\t<\/p>\n<p>\n\t\t\t\t\t5- tippkiskjad\n\t\t\t\t<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\n\tAine ja energia kanduvad toiduahelas \u00fchelt organismilt teisele, kuid mitte k\u00f5ik tootjates olevad toitained ja energia ei l\u00e4he j\u00e4rgmisele tasemele. Iga j\u00e4rgnev l\u00fcli saab energiat v\u00e4hem kui eelmine. Seep\u00e4rast on toiduahela alumisel astmel k\u00f5ige rohkem energiat ning \u00fclemistel j\u00e4rjest v\u00e4hem. Seet\u00f5ttu kujutatakse toitumissuhteid p\u00fcramiidina. J\u00e4rgmisele astmele antakse edasi vaid 10% eelmiselt astmelt saadud energiast. Seda nimetatakse\u00a0<strong>\u00f6koloogilise p\u00fcramiidi reegliks<\/strong>.\u00a0\n<\/p>\n<h4>\n\tN\u00e4idis\u00fclesanne:\u00a0 Kuidas arvutada biomassi?<br>\n<\/h4>\n<p>\n\t<strong>Milline v\u00f5iks olla maksimaalne kulliliste biomass, kes on \u00e4ra s\u00f6\u00f6nud 1 tonnist nisust toitunud n\u00e4rilised?<\/strong>\n<\/p>\n<p>\n\tnisu \u2192 n\u00e4rilised \u2192 kullilised\n<\/p>\n<p>\n\tArvestame, et iga j\u00e4rgnev toiduahela l\u00fcli saab talletada oma biomassis 10% toiduks tarbitud biomassist.<br>Seega, n\u00e4riliste biomass saab suureneda 10% \u00fchest tonnist.\n<\/p>\n<p>\n\t<strong>1 tonn x 10% = 1000 kg x 0,1 = 100 kg<\/strong>\n<\/p>\n<p>\n\tSarnaselt saab kulliliste biomassis talletuda 10% 100 kg-st.\n<\/p>\n<p>\n\t<strong>100 kg x 10% = 100 kg x 0,1 = 10 kg<\/strong>\n<\/p>\n<p>\n\t<strong>Vastus:<\/strong>\u00a0Kulliliste biomass saab olla maksimaalselt 10 kg.\n<\/p>\n<h4>\n\tK\u00fcsimusi m\u00f5tisklemiseks<br>\n<\/h4>\n<p>\n\t<strong>A. Miks l\u00e4heb j\u00e4rgmisele p\u00fcramiidi astmele ainult ligikaudu 10% toiduga saadud energiast? Kuhu kaob \u00fclej\u00e4\u00e4nud osa?\u00a0<\/strong>\n<\/p>\n<a href=\"#\" data-bs-toggle=\"modal\" data-bs-target=\"#popup-modal\" data-title=\"Vaata vastust\" data-content=\"Organismid kasutavad osa saadud energiast elutegevuseks, suur osa sellest hajub soojusena keskkonda ja vaid v\u00e4ike osa energiast kulub kasvamiseks (uute rakkude moodustamiseks). Ainult rakkudesse talletatud energia liigub m\u00f6\u00f6da toiduahelat edasi.\">Vaata vastust<\/a>\n<p>\n\t<strong>B. Millisel juhul on arvukuse p\u00fcramiidi esimene aste v\u00e4iksem kui j\u00e4rgmised?\u00a0<\/strong>\n<\/p>\n<p>\n\ta) p\u00e4rn \u2192 putukad \u2192 lehelinnud\u00a0\u2192\u00a0raudkullid<br>b) maasikas\u00a0\u2192\u00a0n\u00e4lkjad\u00a0\u2192\u00a0siil\u00a0\u2192\u00a0rebane<br>c) vetikas\u00a0\u2192\u00a0vesikirp\u00a0\u2192\u00a0kalamaim\u00a0\u2192\u00a0ahven\u00a0\u2192\u00a0haug\n<\/p>\n<p>\n\t<strong>C. Miks ohustavad taimekaitse m\u00fcrgid eriti p\u00fcramiidi k\u00f5ige k\u00f5rgemal tasemel olevaid tippkiskjaid?<\/strong>\n<\/p>\n<a href=\"#\" data-bs-toggle=\"modal\" data-bs-target=\"#popup-modal\" data-title=\"Vaata vastust\" data-content=\"Organismid kasutavad osa saadud energiast elutegevuseks, suur osa sellest hajub soojusena keskkonda ja vaid v\u00e4ike osa energiast kulub kasvamiseks (uute rakkude moodustamiseks). Ainult rakkudesse talletatud energia liigub m\u00f6\u00f6da toiduahelat edasi.\">Vaata vastust<\/a>\n","protected":false},"excerpt":{"rendered":"<p>Kolmandate osapoolte sisu n\u00e4gemiseks palun n\u00f5ustu k\u00fcpsistega. Muuda n\u00f5usolekut Toiduv\u00f5rgud annavad toitumissuhete kohta rohkem informatsiooni kui toiduahelad, siiski n\u00e4itavad nad vaid seda, kes keda s\u00f6\u00f6b. Kumbki neist ei anna infot selle kohta, milline on organismide arvukus v\u00f5i biomass \u00f6kos\u00fcsteemis.\u00a0 Seep\u00e4rast &#8230;<\/p>\n","protected":false},"author":345,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-20","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/sisu.ut.ee\/biopohikool\/wp-json\/wp\/v2\/pages\/20","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sisu.ut.ee\/biopohikool\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sisu.ut.ee\/biopohikool\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/biopohikool\/wp-json\/wp\/v2\/users\/345"}],"replies":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/biopohikool\/wp-json\/wp\/v2\/comments?post=20"}],"version-history":[{"count":1,"href":"https:\/\/sisu.ut.ee\/biopohikool\/wp-json\/wp\/v2\/pages\/20\/revisions"}],"predecessor-version":[{"id":620,"href":"https:\/\/sisu.ut.ee\/biopohikool\/wp-json\/wp\/v2\/pages\/20\/revisions\/620"}],"wp:attachment":[{"href":"https:\/\/sisu.ut.ee\/biopohikool\/wp-json\/wp\/v2\/media?parent=20"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}