{"id":4015,"date":"2015-03-26T09:00:26","date_gmt":"2015-03-26T08:00:26","guid":{"rendered":"http:\/\/libcickekrizovatky.cz\/?p=4015"},"modified":"2015-04-28T23:06:25","modified_gmt":"2015-04-28T22:06:25","slug":"zimovani-vodnich-ptaku-na-vltave","status":"publish","type":"post","link":"https:\/\/libcickekrizovatky.cz\/?p=4015","title":{"rendered":"Zimov\u00e1n\u00ed vodn\u00edch pt\u00e1k\u016f na Vltav\u011b"},"content":{"rendered":"<p><a href=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/patci-banner.jpg\"><img loading=\"lazy\" class=\"alignnone  wp-image-4029\" alt=\"Pt\u00e1ci na \u0159ece\" src=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/patci-banner.jpg\" width=\"248\" height=\"86\" srcset=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/patci-banner.jpg 689w, https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/patci-banner-300x104.jpg 300w\" sizes=\"(max-width: 248px) 100vw, 248px\" \/><\/a><\/p>\n<p><strong style=\"line-height: 1.5em;\">Pro\u010d je zaj\u00edmav\u00e9 sledovat vodn\u00ed pt\u00e1ky v\u00a0zim\u011b? Jak\u00e1 je historie Mezin\u00e1rodn\u00edho s\u010d\u00edt\u00e1n\u00ed vodn\u00edch pt\u00e1k\u016f? Co zaj\u00edmav\u00e9ho jsme mohli v\u00a0okol\u00ed Lib\u010dic pozorovat p\u0159ed 50 lety a&nbsp;co v&nbsp;lednu 2015?<\/strong><!--more--><\/p>\n<p>Naprost\u00e1 v\u011bt\u0161ina pt\u00e1k\u016f voln\u011b \u017eij\u00edc\u00edch pt\u00e1k\u016f v\u00a0na\u0161\u00ed p\u0159\u00edrod\u011b st\u0159\u00edd\u00e1 v\u00a0pr\u016fb\u011bhu sv\u00e9ho ro\u010dn\u00edho cyklu m\u00edsta sv\u00e9ho v\u00fdskytu. Nejedn\u00e1 se v\u0161ak zdaleka jen o&nbsp;tradi\u010dn\u00ed odlet u&nbsp;n\u00e1s hn\u00edzd\u00edc\u00edch pt\u00e1k\u016f do tepl\u00fdch krajin. Pro severn\u011bji hn\u00edzd\u00edc\u00ed druhy a&nbsp;jedince m\u016f\u017ee b\u00fdt i&nbsp;st\u0159edn\u00ed Evropa p\u0159\u00edhodn\u00fdm m\u00edstem pro p\u0159ezimov\u00e1n\u00ed. Takto se na nezamrzaj\u00edc\u00ed vody v\u00a0\u010cesk\u00e9 republice st\u011bhuj\u00ed ka\u017edou zimu des\u00edtky a\u017e tis\u00edce vodn\u00edch pt\u00e1k\u016f hn\u00edzd\u00edc\u00ed v\u00a0tajgov\u00fdch a&nbsp;tundrov\u00fdch oblastech Eurasie. Nejde p\u0159itom o&nbsp;jednoduch\u00fd p\u0159elet ze severu na jih.<\/p>\n<p>V\u00a0Evrop\u011b p\u0159evl\u00e1d\u00e1 sp\u00ed\u0161e tah ve sm\u011bru severov\u00fdchod \u2013 jihoz\u00e1pad. Nejtepleji je v\u00a0zim\u011b v\u00a0jihoz\u00e1padn\u00ed Evrop\u011b, naopak nejchladn\u011bji v\u00a0severov\u00fdchodn\u00ed. Ani to v\u0161ak nen\u00ed jedin\u00fd sm\u011br migrace a&nbsp;p\u0159elet\u016f. Podm\u00ednky jednotliv\u00fdch zimn\u00edch sez\u00f3n jsou variabiln\u00ed. St\u0159\u00eddaj\u00ed se m\u00edrn\u011bj\u0161\u00ed a&nbsp;krut\u011bj\u0161\u00ed zimy a&nbsp;i&nbsp;v\u00a0t\u011bch m\u00edrn\u00fdch zim\u00e1ch n\u00e1s zpravidla nemine n\u011bkolik mraziv\u00fdch dn\u016f nebo t\u00fddn\u016f. Tyto pov\u011btrnostn\u00ed v\u00fdkyvy ovliv\u0148uj\u00ed i&nbsp;v\u00fdskyt a&nbsp;po\u010detnost zimuj\u00edc\u00edch vodn\u00edch pt\u00e1k\u016f.<\/p>\n<p>V\u00a0tuh\u00fdch zim\u00e1ch zamrznou stojat\u00e9 vody (rybn\u00edky, p\u0159ehrady, p\u00edskovny) i&nbsp;n\u011bkter\u00e9 \u00faseky \u0159ek a&nbsp;pt\u00e1ci jsou odk\u00e1z\u00e1ni jen na v\u011bt\u0161\u00ed toky nebo prudce tekouc\u00ed \u00faseky \u0159ek. V\u00a0m\u00edrn\u00fdch zim\u00e1ch (jako byla i&nbsp;ta leto\u0161n\u00ed), maj\u00ed vodn\u00ed pt\u00e1ci k\u00a0dispozici \u0161ir\u0161\u00ed nab\u00eddku nezamrzl\u00fdch vodn\u00edch n\u00e1dr\u017e\u00ed a&nbsp;vodn\u00edch tok\u016f. Prav\u011b tyto vztahy sleduj\u00ed ornitologov\u00e9 p\u0159i&nbsp;celosv\u011btov\u011b organizovan\u00e9m mezin\u00e1rodn\u00edm s\u010d\u00edt\u00e1n\u00ed vodn\u00edch pt\u00e1k\u016f, kter\u00e9 prob\u00edh\u00e1 ka\u017edoro\u010dn\u011b v\u00a0polovin\u011b ledna. V\u00a0leto\u0161n\u00edm roce byl takto zorganizov\u00e1n ji\u017e jeho 50.&nbsp;ro\u010dn\u00edk.<\/p>\n<div class=\"gallery gallery-columns-3 gallery-size-thumbnail rps-image-gallery-format-default rps-image-gallery-theme-default rps-image-gallery-columns-responsive rps-image-gallery rps-image-gallery-masonry rps-image-gallery-no-heading rps-image-gallery-caption rps-image-gallery-no-social \" style=\"text-align:left\" pageSize=\"0\" currentPage=\"0\" ><ul class=\"background-thumbnails\"><li class=\"gallery-item gallery-item-begin-row\"><div class=\"gallery-icon landscape\"><a rel=\"rps-image-group-4015\" href=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/kormorani.jpg\" title=\"&amp;lt;div class=&amp;quot;fancybox-title-caption&amp;quot;&amp;gt;&amp;lt;p&amp;gt;Kormor\u00e1ni velc\u00ed v Lib\u010dic\u00edch nad Vltavou P\u0159ist\u00e1vaj\u00edc\u00ed mlad\u00fd pt\u00e1k (vlevo) se zdrav\u00ed se star\u0161\u00edm druhem. (Foto: Vojt\u011bch Juda)&amp;lt;\/p&amp;gt;\n&amp;lt;\/div&amp;gt;\"><img src=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/kormorani-250x250.jpg\" alt=\"Kormor\u00e1ni\" title=\"Kormor\u00e1ni\" class=\"attachment-thumbnail\" width=\"250\" height=\"250\" sizes=\"(max-width: 250px) 100vw, 250px\"><\/a><\/div><div class=\"wp-caption-text gallery-caption\" style=\"text-align:left\"><p>Kormor\u00e1ni velc\u00ed v Lib\u010dic\u00edch nad Vltavou P\u0159ist\u00e1vaj\u00edc\u00ed mlad\u00fd pt\u00e1k (vlevo) se zdrav\u00ed se star\u0161\u00edm druhem. (Foto: Vojt\u011bch Juda)<\/p>\n<\/div><\/li><li class=\"gallery-item \"><div class=\"gallery-icon landscape\"><a rel=\"rps-image-group-4015\" href=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/ostralka.jpg\" title=\"&amp;lt;div class=&amp;quot;fancybox-title-caption&amp;quot;&amp;gt;&amp;lt;p&amp;gt;Elegantn\u00ed samec seversk\u00e9 kachny ostralky \u0161t\u00edhl\u00e9 tr\u00e1vil v leto\u0161n\u00ed zimu v Kralupech nad Vltavou (Foto: Martina Ki\u0161elov\u00e1)&amp;lt;\/p&amp;gt;\n&amp;lt;\/div&amp;gt;\"><img src=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/ostralka-250x250.jpg\" alt=\"Kachna ostralka\" title=\"Kachna ostralka\" class=\"attachment-thumbnail\" width=\"250\" height=\"250\" sizes=\"(max-width: 250px) 100vw, 250px\"><\/a><\/div><div class=\"wp-caption-text gallery-caption\" style=\"text-align:left\"><p>Elegantn\u00ed samec seversk\u00e9 kachny ostralky \u0161t\u00edhl\u00e9 tr\u00e1vil v leto\u0161n\u00ed zimu v Kralupech nad Vltavou (Foto: Martina Ki\u0161elov\u00e1)<\/p>\n<\/div><\/li><li class=\"gallery-item gallery-item-end-row\"><div class=\"gallery-icon landscape\"><a rel=\"rps-image-group-4015\" href=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/DSC_0266.jpg\" title=\"&amp;lt;div class=&amp;quot;fancybox-title-caption&amp;quot;&amp;gt;&amp;lt;p&amp;gt;Sl\u00edpka zelenonoh\u00e1 zimuje p\u0159edev\u0161\u00edm na v\u011bt\u0161\u00edch \u0159ek\u00e1ch (Vltava a Labe) st\u0159edn\u00edch \u010cech. (Foto: Petr Musil)&amp;lt;\/p&amp;gt;\n&amp;lt;\/div&amp;gt;\"><img src=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/DSC_0266-250x250.jpg\" alt=\"Sl\u00edpka zelenonoh\u00e1\" title=\"Sl\u00edpka zelenonoh\u00e1\" class=\"attachment-thumbnail\" width=\"250\" height=\"250\" sizes=\"(max-width: 250px) 100vw, 250px\"><\/a><\/div><div class=\"wp-caption-text gallery-caption\" style=\"text-align:left\"><p>Sl\u00edpka zelenonoh\u00e1 zimuje p\u0159edev\u0161\u00edm na v\u011bt\u0161\u00edch \u0159ek\u00e1ch (Vltava a Labe) st\u0159edn\u00edch \u010cech. (Foto: Petr Musil)<\/p>\n<\/div><\/li><li class=\"gallery-item gallery-item-begin-row\"><div class=\"gallery-icon landscape\"><a rel=\"rps-image-group-4015\" href=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/DSC_1385.jpg\" title=\"&amp;lt;div class=&amp;quot;fancybox-title-caption&amp;quot;&amp;gt;&amp;lt;p&amp;gt;Dva samci a jedna samice mor\u010d\u00e1ka velk\u00e9ho. P\u0159esto, \u017ee se jedn\u00e1 o druh kachny, \u017eiv\u00ed se rybami, k \u010demu\u017e m\u00e1 uzp\u016fsoben\u00fd i zob\u00e1k. (Foto: Zuzana Musilov\u00e1)&amp;lt;\/p&amp;gt;\n&amp;lt;\/div&amp;gt;\"><img src=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/DSC_1385-250x250.jpg\" alt=\"Mor\u010d\u00e1k velk\u00fd\" title=\"Mor\u010d\u00e1k velk\u00fd\" class=\"attachment-thumbnail\" width=\"250\" height=\"250\" sizes=\"(max-width: 250px) 100vw, 250px\"><\/a><\/div><div class=\"wp-caption-text gallery-caption\" style=\"text-align:left\"><p>Dva samci a jedna samice mor\u010d\u00e1ka velk\u00e9ho. P\u0159esto, \u017ee se jedn\u00e1 o druh kachny, \u017eiv\u00ed se rybami, k \u010demu\u017e m\u00e1 uzp\u016fsoben\u00fd i zob\u00e1k. (Foto: Zuzana Musilov\u00e1)<\/p>\n<\/div><\/li><li class=\"gallery-item \"><div class=\"gallery-icon landscape\"><a rel=\"rps-image-group-4015\" href=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/DSC_2826.jpg\" title=\"&amp;lt;div class=&amp;quot;fancybox-title-caption&amp;quot;&amp;gt;&amp;lt;p&amp;gt;Hlavn\u00ed zimovi\u0161t\u011b racka chechtav\u00e9ho ve v \u010cesk\u00e9 republice nach\u00e1zej\u00ed na Vltav\u011b v Praze a okol\u00ed. (Foto: Zuzana Musilov\u00e1)&amp;lt;\/p&amp;gt;\n&amp;lt;\/div&amp;gt;\"><img src=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/DSC_2826-250x250.jpg\" alt=\"Racek chechtav\u00fd\" title=\"Racek chechtav\u00fd\" class=\"attachment-thumbnail\" width=\"250\" height=\"250\" sizes=\"(max-width: 250px) 100vw, 250px\"><\/a><\/div><div class=\"wp-caption-text gallery-caption\" style=\"text-align:left\"><p>Hlavn\u00ed zimovi\u0161t\u011b racka chechtav\u00e9ho ve v \u010cesk\u00e9 republice nach\u00e1zej\u00ed na Vltav\u011b v Praze a okol\u00ed. (Foto: Zuzana Musilov\u00e1)<\/p>\n<\/div><\/li><li class=\"gallery-item gallery-item-end-row\"><div class=\"gallery-icon landscape\"><a rel=\"rps-image-group-4015\" href=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/DSC_6426.jpg\" title=\"&amp;lt;div class=&amp;quot;fancybox-title-caption&amp;quot;&amp;gt;&amp;lt;p&amp;gt;Dosud nejv\u00edce kormor\u00e1n\u016f velk\u00fdch zimovalo v okol\u00ed Lib\u010dic nad Vltavou v \u00fanoru 2010 (484). Za 1\u00a0 t\u00fdden pak v okol\u00ed Lib\u010dic zkonzumovali v\u00edce ne\u017e tunu ryb.\u00a0 (Foto: Petr Musil)&amp;lt;\/p&amp;gt;\n&amp;lt;\/div&amp;gt;\"><img src=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/DSC_6426-250x250.jpg\" alt=\"Kormor\u00e1ni\" title=\"Kormor\u00e1ni\" class=\"attachment-thumbnail\" width=\"250\" height=\"250\" sizes=\"(max-width: 250px) 100vw, 250px\"><\/a><\/div><div class=\"wp-caption-text gallery-caption\" style=\"text-align:left\"><p>Dosud nejv\u00edce kormor\u00e1n\u016f velk\u00fdch zimovalo v okol\u00ed Lib\u010dic nad Vltavou v \u00fanoru 2010 (484). Za 1\u00a0 t\u00fdden pak v okol\u00ed Lib\u010dic zkonzumovali v\u00edce ne\u017e tunu ryb.\u00a0 (Foto: Petr Musil)<\/p>\n<\/div><\/li><li class=\"gallery-item gallery-item-begin-row\"><div class=\"gallery-icon landscape\"><a rel=\"rps-image-group-4015\" href=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/DSC_7379.jpg\" title=\"&amp;lt;div class=&amp;quot;fancybox-title-caption&amp;quot;&amp;gt;&amp;lt;p&amp;gt;Kachna divok\u00e1 je nejpo\u010detn\u011bj\u0161\u00edm a nejhojn\u011bj\u0161\u00edm druhem kachen zimuj\u00edc\u00edm v \u010cesk\u00e9 republice. Jej\u00ed samec je ve svatebn\u00edm \u0161atu kr\u00e1sn\u011b vybarven\u00fd. (Foto: Zuzana Musilov\u00e1)&amp;lt;\/p&amp;gt;\n&amp;lt;\/div&amp;gt;\"><img src=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/DSC_7379-250x250.jpg\" alt=\"Kachna divok\u00e1\" title=\"Kachna divok\u00e1\" class=\"attachment-thumbnail\" width=\"250\" height=\"250\" sizes=\"(max-width: 250px) 100vw, 250px\"><\/a><\/div><div class=\"wp-caption-text gallery-caption\" style=\"text-align:left\"><p>Kachna divok\u00e1 je nejpo\u010detn\u011bj\u0161\u00edm a nejhojn\u011bj\u0161\u00edm druhem kachen zimuj\u00edc\u00edm v \u010cesk\u00e9 republice. Jej\u00ed samec je ve svatebn\u00edm \u0161atu kr\u00e1sn\u011b vybarven\u00fd. (Foto: Zuzana Musilov\u00e1)<\/p>\n<\/div><\/li><li class=\"gallery-item \"><div class=\"gallery-icon landscape\"><a rel=\"rps-image-group-4015\" href=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/DSC_0222.jpg\" title=\"&amp;lt;div class=&amp;quot;fancybox-title-caption&amp;quot;&amp;gt;&amp;lt;p&amp;gt;Lyska \u010dern\u00e1 se um\u00ed v\u00fdborn\u011b pot\u00e1p\u011bt. V zim\u011b vyhled\u00e1v\u00e1 v\u011bt\u0161\u00ed \u0159eky, p\u0159ehrady a p\u00edskovny.\u00a0 (Foto: Petr Musil)&amp;lt;\/p&amp;gt;\n&amp;lt;\/div&amp;gt;\"><img src=\"https:\/\/libcickekrizovatky.cz\/content\/uploads\/2015\/03\/DSC_0222-250x250.jpg\" alt=\"Lyska \u010dern\u00e1\" title=\"Lyska \u010dern\u00e1\" class=\"attachment-thumbnail last\" width=\"250\" height=\"250\" sizes=\"(max-width: 250px) 100vw, 250px\"><\/a><\/div><div class=\"wp-caption-text gallery-caption\" style=\"text-align:left\"><p>Lyska \u010dern\u00e1 se um\u00ed v\u00fdborn\u011b pot\u00e1p\u011bt. V zim\u011b vyhled\u00e1v\u00e1 v\u011bt\u0161\u00ed \u0159eky, p\u0159ehrady a p\u00edskovny.\u00a0 (Foto: Petr Musil)<\/p>\n<\/div><\/li><\/ul><\/div>\n<h2>Na Vltav\u011b p\u0159ib\u00fdvaj\u00ed zaj\u00edmav\u00e9 druhy pt\u00e1k\u016f<\/h2>\n<p>V\u00a0pr\u016fb\u011bhu historie cel\u00e9 akce (1966 &#8211; 2015) se poda\u0159ilo zdokumentovat v\u00fdvoj po\u010detnosti mnoh\u00fdch druh\u016f vodn\u00edch pt\u00e1k\u016f. Pozornost ur\u010dit\u011b upoutalo \u0161\u00ed\u0159en\u00ed i&nbsp;n\u00e1r\u016fst po\u010dtu kormor\u00e1n\u016f, volavek, hus a&nbsp;v\u011bt\u0161iny druh\u016f kachen a&nbsp;rack\u016f. St\u00e1le \u010dast\u011bji se setk\u00e1v\u00e1me i&nbsp;s\u00a0nep\u016fvodn\u00edmi druhy, poch\u00e1zej\u00edc\u00edmi z\u00a0jin\u00fdch sv\u011btad\u00edl\u016f, kter\u00e9 se do evropsk\u00e9 p\u0159\u00edrody<\/p>\n<p>dostaly z\u00e1sahem \u010dlov\u011bka. Na po\u010d\u00e1tku s\u010d\u00edt\u00e1n\u00ed se nach\u00e1zela nev\u00fdznamn\u011bj\u0161\u00ed zimovi\u0161t\u011b na velk\u00fdch \u0159ek\u00e1ch, na Labi a&nbsp;Vltav\u011b. Pozd\u011bji vzr\u016fstal v\u00fdznam n\u011bkter\u00fdch nov\u011b budovan\u00fdch p\u0159ehradn\u00edch n\u00e1dr\u017e\u00ed, jako jsou nap\u0159\u00edklad Nov\u00e9 Ml\u00fdny, Nechranice, Jesenice nebo Rozko\u0161. Nov\u00e1 zimovi\u0161t\u011b se objevila i&nbsp;na n\u011bkter\u00fdch p\u00edskovn\u00e1ch a&nbsp;\u0161t\u011brkop\u00edskovn\u00e1ch. V\u00fdznam doln\u00edch tok\u016f \u0159ek Vltavy a&nbsp;Labe v\u0161ak neklesal.<\/p>\n<p>Pod\u00edvejme se do historie: hned v\u00a0prvn\u00edm roce s\u010d\u00edt\u00e1n\u00ed bylo dne 16.&nbsp;1.&nbsp;1966 na Vltav\u011b mezi m\u011bsty Roztoky u&nbsp;Prahy a&nbsp;Kralupy nad Vltavou zji\u0161t\u011bno 684 kachen divok\u00fdch, 20 rack\u016f chechtav\u00fdch, 7 pot\u00e1pek mal\u00fdch a&nbsp;2 lysky \u010dern\u00e9 \u2013 713 jedinc\u016f a&nbsp;4 druhy. Z\u0159ejm\u011b nejv\u00fdrazn\u011bj\u0161\u00edm jevem v\u00a0n\u00e1sleduj\u00edc\u00edch letech byl n\u00e1r\u016fst po\u010detnosti rybo\u017erav\u00fdch pt\u00e1k\u016f (kormor\u00e1n velk\u00fd, volavka popelav\u00e1, mor\u010d\u00e1k velk\u00fd), kte\u0159\u00ed za\u010dali na Vltav\u011b v\u00a0okol\u00ed Lib\u010dic zimovat pravideln\u011b od 90.&nbsp;let. V\u0161echny tyto druhy byly zji\u0161t\u011bny i&nbsp;v\u00a0leto\u0161n\u00edm lednu, ale v\u00a0po\u010dtech sp\u00ed\u0161e dlouhodob\u011b podpr\u016fm\u011brn\u00fdch. Vyu\u017eili toti\u017e k\u00a0zimov\u00e1n\u00ed jin\u00e9 nezamrzl\u00e9 lokality v\u00a0bli\u017e\u0161\u00edm i&nbsp;vzd\u00e1len\u011bj\u0161\u00edm okol\u00ed.<\/p>\n<h2>Letos si pt\u00e1ci mohli vybrat lokalitu<\/h2>\n<p>P\u0159i leto\u0161n\u00edm s\u010d\u00edt\u00e1n\u00ed tak bylo dne 18.&nbsp;ledna 2015 zaznamen\u00e1no na stejn\u00e9m \u00faseku \u0159eky Vltavy 174 kachen divok\u00fdch, 219 kormor\u00e1n\u016f velk\u00fdch, 82 rack\u016f chechtav\u00fdch, 23 mor\u010d\u00e1k\u016f velk\u00fdch, 20 sl\u00edpek zelenonoh\u00fdch, 9 labut\u00ed velk\u00fdch, 8 pol\u00e1k\u016f chochola\u010dek, 6 pot\u00e1pek mal\u00fdch, 4 lysky \u010dern\u00e9, 4, volavky popelav\u00e9, 2 led\u0148\u00e1\u010dci \u0159\u00ed\u010dn\u00ed, 1 racek b\u011blohlav\u00fd. Nejv\u011bt\u0161\u00edm p\u0159ekvapen\u00edm pak byl jeden p\u011bkn\u011b vybarven\u00fd samec ostralky \u0161t\u00edhl\u00e9 (seversk\u00fd druh kachny), zimuj\u00edc\u00ed v\u00a0Kralupech nad Vltavou. Celkov\u011b tedy bylo zji\u0161t\u011bno 553 jedinc\u016f a&nbsp;13 druh\u016f.<\/p>\n<p>Leden 2015 tedy p\u0159il\u00e1kal na Vltavu do okol\u00ed Lib\u010dic zaj\u00edmav\u00e9 spektrum pta\u010d\u00edch druh\u016f. Jejich po\u010dty ale nebyly p\u0159\u00edli\u0161 vysok\u00e9. Ani zdaleka jsme se nep\u0159ibl\u00ed\u017eili hranici 1000 jedinc\u016f r\u016fzn\u00fdch druh\u016f, kter\u00e1 zde b\u00fdv\u00e1 dosa\u017eena v\u00a0tu\u017e\u0161\u00edch zim\u00e1ch (nap\u0159\u00edklad v\u00a0lednu 2006, 2008, 2009, 2010 a&nbsp;2013), kdy pt\u00e1ci nemohou kv\u016fli zamrznut\u00ed vyu\u017e\u00edvat stojat\u00e9 vody v\u00a0\u0161ir\u0161\u00edm okol\u00ed. V\u00a0celost\u00e1tn\u00edm m\u011b\u0159\u00edtku nedoch\u00e1z\u00ed k\u00a0poklesu po\u010dtu zimuj\u00edc\u00edch vodn\u00edch pt\u00e1k\u016f, ale naopak pokra\u010duje jeho n\u00e1r\u016fst. V\u00a0m\u00edrn\u00fdch zim\u00e1ch se p\u0159itom pt\u00e1ci mohou objevovat i&nbsp;na lokalit\u00e1ch, kter\u00e9 d\u0159\u00edve nevyu\u017e\u00edvali, jako jsou nap\u0159\u00edklad p\u00edskovny u&nbsp;Vojkovic nebo Z\u00e1lezlic. Ka\u017ed\u00fd rok tedy m\u016f\u017ee zimov\u00e1n\u00ed vodn\u00edch pt\u00e1k\u016f p\u0159in\u00e1\u0161et nov\u00e1 p\u0159ekvapen\u00ed.<\/p>\n<p style=\"text-align: right;\"><span style=\"line-height: 1.5em;\">Petr a&nbsp;Zuzana Musilovi<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pro\u010d je zaj\u00edmav\u00e9 sledovat vodn\u00ed pt\u00e1ky v\u00a0zim\u011b? Jak\u00e1 je historie Mezin\u00e1rodn\u00edho s\u010d\u00edt\u00e1n\u00ed vodn\u00edch pt\u00e1k\u016f? Co zaj\u00edmav\u00e9ho jsme mohli v\u00a0okol\u00ed Lib\u010dic pozorovat p\u0159ed 50 lety a&nbsp;co v&nbsp;lednu 2015?<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1,322],"tags":[6,223,228,324,323],"_links":{"self":[{"href":"https:\/\/libcickekrizovatky.cz\/index.php?rest_route=\/wp\/v2\/posts\/4015"}],"collection":[{"href":"https:\/\/libcickekrizovatky.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/libcickekrizovatky.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/libcickekrizovatky.cz\/index.php?rest_route=\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/libcickekrizovatky.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4015"}],"version-history":[{"count":10,"href":"https:\/\/libcickekrizovatky.cz\/index.php?rest_route=\/wp\/v2\/posts\/4015\/revisions"}],"predecessor-version":[{"id":4478,"href":"https:\/\/libcickekrizovatky.cz\/index.php?rest_route=\/wp\/v2\/posts\/4015\/revisions\/4478"}],"wp:attachment":[{"href":"https:\/\/libcickekrizovatky.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4015"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/libcickekrizovatky.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4015"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/libcickekrizovatky.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4015"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}