Common European birds are declining rapidly while less abundant species' numbers are rising

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Common European birds are declining rapidly while less abundant species' numbers are rising.

Biodiversity is undergoing unprecedented global decline. Efforts to slow this rate have focused foremost on rarer species, which are at most risk of extinction. Less interest has been paid to more common species, despite their greater importance in terms of ecosystem function and service provision. How rates of decline are partitioned between common and less abundant species remains unclear. Us...

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There are less transcendental numbers than rational numbers

According to a basic theorem of transfinite set theory the set of irrational numbers is uncountable, while the set of rational numbers is countable. This is contradicted by the fact that any pair of irrational numbers is separated by at least one rational number. Hence, in the interval [0,1] there exist more rational numbers than irrational numbers.

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Declining numbers of family physicians are caring for children.

Despite continued growth of the primary care workforce, profound maldistribution persists among providers available for the care of children. Family physicians (FPs) spend, on average, approximately 10% of their total practice time caring for children; however, given that, among physician specialties, FPs are geographically distributed most evenly across the US population, the self-reported dec...

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Are Children Less Susceptible To COVID-19? A Case Series

Background The novel coronavirus (SARS-CoV-2 [2019-nCoV]) is the origin of several cases of pneumonia in Wuhan, Hubei province, China. According to the reported data, children are less common to be infected by COVID-19. Besides, their mortality rate is almost zero. Case Presentation In this article, we investigated six childr...

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Biogeography: Are Tropical Species Less Specialised?

Species richness increases from the poles to the tropics, which has led to the view that interactions in tropical species are more specialised. A new study on pollinators and seed dispersers finds that tropical interactions are in fact less specialised.

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ژورنال

عنوان ژورنال: Ecology Letters

سال: 2014

ISSN: 1461-023X

DOI: 10.1111/ele.12387