منابع مشابه
Breeding performance of blue tits (Cyanistes caeruleus) and great tits (Parus major) in a heavy metal polluted area.
We compared heavy metal levels, calcium levels, breeding parameters and condition of nestling and adult Cyanistes caeruleus and Parus major along a heavy metal pollution gradient. Both species started laying earlier and showed inferior nestling growth and smaller fledging probability in the polluted areas, which are phenologically advanced in spring due to sparse forests. The major inter-specif...
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The feeding rate, food size, energy intake and nutrient intake were studied for nestlings of the Varied Tit (Parus varius) and the Great Tit (Parus major) living in evergreen broad-leaved forest in Minamata, southern Kyushu, Japan. The frequency of daily feeding visit was around 100 times for both species. The diets of the two species were similar in general; feeding on lepidopteran larvae, mot...
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Many avian species in Europe breed earlier as a result of higher temperatures caused by global climate changes. Climate change means not only higher temperatures but also more frequent extreme weather events, sometimes contrasting with the long-term trends. It was suggested that we should look closely at every extreme phenomenon and its consequences for the phenology of organisms. Examining the...
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Das Benzoldimer ist ein Prototypsystem f r die Untersuchung nichtkovalenter Wechselwirkungen zwischen aromatischen Systemen, die durch Dispersionskr fte bestimmt werden. Es weist zwei miteinander konkurrierende Gleichgewichtsstrukturen auf: eine gekippte, T-fçrmige (edge-toface) und eine, in der die beiden Benzolringe parallel angeordnet, aber zueinander verschoben sind (stacked). Sowohl der ve...
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Deutschland steht 2009 vor einem überaus schwierigen Jahr. Vorausschauende Manager schielen aber weniger auf die nicht beeinflussbaren Eckdaten, sondern finden heraus, welche Verbesserungspotenziale in ihrer Firma schlummern. Eine Alternative zu Cost-Cutting-Programmen kann die Optimierung des Projektmanagements sein. Ein kritischer Blick auf den Markt der dafür erforderlichen Projektmanagement...
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ژورنال
عنوان ژورنال: Journal für Ornithologie
سال: 1871
ISSN: 0021-8375,1439-0361
DOI: 10.1007/bf02259432