Putnu migracija: vai putni maina savus marsrutus klimata parmainu del

Published: March 16, 2023, 8:07 a.m.

b'G\\u0101jputni ir sign\\u0101ls gadalaiku mai\\u0146ai, tie ruden\\u012b pavad\\u012bti ar skumj\\u0101m, bet pavasar\\u012b atgrie\\u017eas k\\u0101 priec\\u012bgs apsol\\u012bjums jaunam s\\u0101kumam dab\\u0101 un ar\\u012b cilv\\u0113ku dz\\u012bv\\u0113. \\u012apa\\u0161i tie, kuri ligzdo m\\u0101ju tuvum\\u0101, priec\\u012bga v\\u0113sts cilv\\u0113kiem ir sp\\u0101rnot\\u0101 kaimi\\u0146a atgrie\\u0161an\\u0101s.\\xa0K\\u0101das strat\\u0113\\u0123ijas izv\\u0113las da\\u017e\\u0101das putnu sugas, m\\u0113rojot ce\\u013cu uz ligzdo\\u0161anas viet\\u0101m pavasar\\u012b? Un cik elast\\u012bgi ir putni, kad \\u0161\\u012bs strat\\u0113\\u0123ijas un ce\\u013c\\u0161 ir j\\u0101maina, jo klimats main\\u0101s, raid\\u012bjum\\u0101 Zin\\u0101mais nezin\\u0101maj\\u0101 v\\u0113rt\\u0113 ornitologs M\\u0101rti\\u0146\\u0161 Briedis.\\n\\nKad \\u012bsti s\\u0101kas pavasaris?\\n\\nAstronomiskais pavasaris vai meteorolo\\u0123iskais pavasaris, kur\\u0161 no tiem liecina par pavasara iest\\u0101\\u0161anos un p\\u0113c k\\u0101d\\u0101m paz\\u012bm\\u0113m. Ja pavasari kalend\\u0101r\\u0101 skait\\u012btu no marta s\\u0101kuma l\\u012bdz maija beig\\u0101m, san\\u0101ktu v\\u0113l tre\\u0161ais pavasara veids. K\\u0101 saprast gan pavasara, gan citu gadalaiku s\\u0101kumu un beigas?\\n\\nVar nomain\\u012bt kalend\\u0101ra lapi\\u0146u, var svin\\u0113t vasaras saulgrie\\u017eus vai, piem\\u0113ram, pavasara ekvinokciju, kad diena k\\u013c\\u016bst liel\\u0101ka par nakti, bet, iesp\\u0113jams, \\u012bst\\u0101ku saj\\u016btu par gadalaiku nomai\\u0146u mums rad\\u012bs gaisa temperat\\u016bra. T\\u0101tad past\\u0101v vair\\u0101kas metodes, k\\u0101 iez\\u012bm\\u0113t gadalaiku nomai\\u0146u, un Latvij\\u0101 lielu noz\\u012bmi pie\\u0161\\u0137iram meteorolo\\u0123iskajam pavasarim, vasarai, rudenim un ziemai.\\n\\nPrakse gan liecina, ka gadalaiku iest\\u0101\\u0161an\\u0101s nav akmen\\u012b cirsti datumi, un v\\u0113l to visu ietekm\\u0113 klimata p\\u0101rmai\\u0146as. P\\u0113c k\\u0101 iesp\\u0113jams noteikt gadalaiku iest\\u0101\\u0161anos, st\\u0101sta\\xa0Latvijas Vides, \\u0123eolo\\u0123ijas un meteorolo\\u0123ijas centra Klimata un skaitlisk\\u0101s model\\u0113\\u0161anas noda\\u013cas vad\\u012bt\\u0101ja Dace Gaile.'