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b'Ar\\u012b purvus, t\\u0101pat k\\u0101 citas ekosist\\u0113mas Latvijas dab\\u0101, cilv\\u0113ks izmanto sav\\u0101m saimnieciskaj\\u0101m vajadz\\u012bb\\u0101m, ta\\u010du ir purvi, kuros cilv\\u0113ka kl\\u0101tb\\u016btne ir bijusi pietieko\\u0161i reta, lai var\\u0113tu teikt, ka \\u0161\\u012b ir neskarta vide. Tei\\u010du purvs ir viena no \\u0161\\u0101d\\u0101m teritorij\\u0101m un t\\u0101 ezerus vair\\u0101k ir p\\u0113t\\u012bjis Latvijas Hidroekolo\\u0123ijas instit\\u016bta p\\u0113tnieks biolo\\u0123ijas zin\\u0101t\\u0146u doktors Mat\\u012bss \\u017dagars. K\\u0101ds ir ezers, kur\\u0101 cilv\\u0113ka kl\\u0101tb\\u016btne tikpat k\\u0101 nav man\\u0101ma? Ar ko tas at\\u0161\\u0137iras no citiem ezeriem un k\\u0101 \\u0161o ekosist\\u0113mu ietekm\\u0113 atra\\u0161an\\u0101s purv\\u0101?\\n\\nBot\\u0101ni\\u0137e Laura Gr\\u012bnberga Latvij\\u0101 atkl\\u0101jusi jaunu \\u016bdens augu sugu "Caldesia parnassifolia" jeb kald\\u0113ziju\\n\\nLatvijas p\\u013cavas, me\\u017ei un citi biotopi glab\\u0101 sugas, par kur\\u0101m v\\u0113l neko nezin\\u0101m, bet ac\\u012bg\\u0101kie p\\u0113tnieki paman\\u0101s t\\u0101s ieraudz\\u012bt un nosaukt v\\u0101rd\\u0101. Un \\u0161ogad tas izdevies hidrobiolo\\u0123ei - bot\\u0101ni\\u0137ei Laurai Gr\\u012bnbergai. Apsekojot ezerus uz Latvijas un Lietuvas robe\\u017eas, vi\\u0146a atkl\\u0101jusi jaunu \\u016bdensaugu sugu Latvij\\u0101 ar apz\\u012bm\\u0113jumu lat\\u012b\\u0146u valod\\u0101 "Caldesia parnassifolia", un sarun\\u0101 ar p\\u0113tnieci pieturamies pie apz\\u012bm\\u0113juma kald\\u0113zija. Bet interesanti, ka kald\\u0113zija ir relikta suga, t\\u0101tad ar\\u012b Latvijas teritorij\\u0101 t\\u0101 ir augusi pirms daudziem t\\u016bksto\\u0161iem gadu, un to pier\\u0101da seni nogulumi. Laurai Gr\\u012bnbergai vispirms vaic\\u0101ju, cik bie\\u017ei izdodas konstat\\u0113t tie\\u0161i jaunas \\u016bdensaugu sugas.\\n\\nRun\\u0101jot par kald\\u0113zijai t\\u012bkam\\u0101ko dz\\u012bves vidi, p\\u0113tniece st\\u0101sta - ja ezers b\\u016bs \\u013coti aizaudzis, suga neb\\u016bs sastopama. Kald\\u0113zijai p\\u0101ri nodar\\u012btu \\u016bdens l\\u012bme\\u0146a pazemin\\u0101\\u0161an\\u0101s ezer\\u0101 un t\\u0101 aizaug\\u0161ana ar niedr\\u0113m un meldriem. Taj\\u0101 pa\\u0161\\u0101 laik\\u0101 kald\\u0113zija neaugs oligotrofajos jeb \\u013coti t\\u012bros un dzidros ezeros. T\\u0101tad gal\\u0113j\\u012bbas tai nepat\\u012bk, un kald\\u0113zija pavisam mier\\u012bgi var augt vid\\u0113ji pies\\u0101r\\u0146otos ezeros, aptuveni viena metra dzi\\u013cum\\u0101. Auga lapas peld pa \\u016bdens virsmu t\\u0101pat k\\u0101 \\u016bdensroz\\u0113m vai l\\u0113p\\u0113m. Un te nu nezin\\u0101t\\u0101jam var\\u0113tu rasties apjukums - k\\u0101 tad kald\\u0113ziju \\u012bsti paman\\u012bt?\\n\\nLapas dz\\u012bslojums at\\u0161\\u0137iras un pamatn\\u0113 ir sirdsveida forma, kas neb\\u016bs citiem l\\u012bdz\\u012bgiem augiem, nor\\u0101da p\\u0113tniece\\n\\nLauras Gr\\u012bnbergas un vi\\u0146as kol\\u0113\\u0123u eksped\\u012bcijas v\\u0113l turpin\\u0101sies, turkl\\u0101t taj\\u0101s tiks p\\u0113t\\u012bti ne vien \\u016bdensaugi, bet, piem\\u0113ram, ar\\u012b \\u016bdens bezmugurkaulnieki. P\\u0113t\\u012bjuma rezult\\u0101ti b\\u016bs zin\\u0101mi n\\u0101kamaj\\u0101 gad\\u0101, un, iesp\\u0113jams, tie atkl\\u0101s v\\u0113l k\\u0101du jaunu inform\\u0101ciju par sug\\u0101m.'