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Labdien! Katru gadu piebarojam zīlītes. Parasti pie barotavas vērojama liela rosība. šogad pilna barotava, atlido kāda zīlīte, dzeni vispār nevienu neredzējām. Vai izmira? (Dobelē)
9, 2011, 18:00liene
:-:

    Sveika, Liene!

    Ziemojošo putnu uzskaites Latvijā pašlaik netiek veiktas, tādēļ nav ticamu datu par putnu skaita svārstībām atsevišķās ziemās. Skaidrs, ka svārstības ir un visai lielas. Piemēram, dzeņiem. Daudz nosaka ziemas bargums, kad putniem ir paaugstināta mirstība vai mīkstums, kad pat ziemo atsevišķi īpatņi no tradicionāli migrējošām sugām.

    Attiecībā uz putnu skaitu barotavā, var ievērot, ka to ietekmē arī tas, kad uzsāk barošanu. Jo agrāk to sāk darīt (piem. oktobrī/novembrī), jo vairāk putnu salasās. Taču, ja barošanu uz ilgāku laiku pārtrauc, putni negaida un parasti izklīst barības meklējumos citās vietās. Ja barošanu uzsāk vēlāk(piem. decembrī/janvārī), vairums putnu jau ir „nostabilizējušies” citur un ir vajadzīgs ilgāks laiks, lai tie jauno barotavu atrastu.

    Bez tam to skaitu barotavā var ietekmēt arī tas, ka tuvumā putni ir sākti labi piebarot arī kādās citās vietās tuvumā, kas iepriekšējos gados nav bijis. Jo vairāk šādu nelielu barotavu apkārtnē (piemēram, pilsētā), jo vidēji mazāks putnu skaits jūsu barotavā. Jo putnu skaits dabā nav neierobežots.

    10, 2011, 11:57Aivars

    Liels paldies par izsmeļošu atbildi! Laikam tomēr šogad esam aizkavējušies ar piebarošanu (novembra vidū). Nākamgad ņemsim vērā!
    12, 2011, 10:09Liene
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