2,443 results match your criteria: "Natural History Museum of Denmark; Universitetsparken 15; Copenhagen; Denmark.. perkovsk@gmail.com.[Affiliation]"

The giant deer, widespread in northern Eurasia during the Late Pleistocene, have been classified as western and eastern through morphological studies. While 's evolutionary history has been unveiled through mitogenomes, remains molecularly unexplored. Herein, we generated mitogenomes of giant deer from East Asia.

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  • Noncoding DNA helps scientists understand how genes work and how they relate to diseases in humans.
  • Researchers studied the DNA of many primates to find specific regulatory parts that are important for gene regulation.
  • They discovered a lot of these regulatory elements in humans that are different from those in other mammals, which can help explain human traits and health issues.
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  • The study analyzes soil fungal diversity globally by examining over 4,000 topsoil samples from various ecosystems, revealing how different environmental factors influence fungal communities.
  • It demonstrates the effects of temperature and precipitation on local species richness (alpha diversity) and how these factors contribute to variations in fungal composition and evolutionary relationships (beta and phylogenetic diversity).
  • The research integrates fungal diversity into global biodiversity frameworks, providing maps and insights that can aid in conservation efforts and ecological studies worldwide.
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Habitat specialization predicts demographic response and vulnerability of floodplain birds in Amazonia.

Mol Ecol

February 2024

Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil.

The annual flooding cycle of Amazonian rivers sustains the largest floodplains on Earth, which harbour a unique bird community. Recent studies suggest that habitat specialization drove different patterns of population structure and gene flow in floodplain birds. However, the lack of a direct estimate of habitat affinity prevents a proper test of its effects on population histories.

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Temperature variation in caves and its significance for subterranean ecosystems.

Sci Rep

November 2023

Departamento de Biologia Animal, and Centre for Ecology, Evolution and Environmental Changes (cE3c) & CHANGE-Institute for Global Change and Sustainability, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016, Lisbon, Portugal.

Climate change affects all ecosystems, but subterranean ecosystems are repeatedly neglected from political and public agendas. Cave habitats are home to unknown and endangered species, with low trait variability and intrinsic vulnerability to recover from human-induced disturbances. We studied the annual variability and cyclicity of temperatures in caves vis-à-vis surface in different climatic areas.

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Myiasis Mimicking Hyperproliferative Skin Disorder in Traveler Returning from Sub-Saharan Africa.

Trop Med Infect Dis

November 2023

Clinic for Lyme Borreliosis and Other Tick-Borne Diseases, Department of Prevention of Rabies and Other Infectious Diseases, Pasteur Institute Novi Sad, 21000 Novi Sad, Serbia.

Myiasis is one of the most common skin diseases found in travelers returning from tropical and subtropical regions, where humans living in or visiting the African continent are most commonly infested by during the rainy season in regions with a warm climate. Here, we present a case of furuncular myiasis caused by in a Serbian patient returning from temporary work in Kenya, where the initial histology of skin lesion mimicked hyperproliferative skin disorder.

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Diversification of flowering plants in space and time.

Nat Commun

November 2023

Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China.

The rapid diversification and high species richness of flowering plants is regarded as 'Darwin's second abominable mystery'. Today the global spatiotemporal pattern of plant diversification remains elusive. Using a newly generated genus-level phylogeny and global distribution data for 14,244 flowering plant genera, we describe the diversification dynamics of angiosperms through space and time.

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  • - Natural history museums hold important specimens, samples, and data that help us understand the natural world.
  • - A recent commentary discusses the need for more compassionate collection methods for specimens in these museums.
  • - It raises the question of whether it's feasible to entirely stop the collection of whole animal specimens in the future.
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  • β-Amino acid-containing macrolactams are bioactive compounds derived from polyketides, but there's limited understanding of their prevalence and biosynthetic diversity among bacteria.
  • This study used a specialized search method to find bacterial strains capable of producing these macrolactams, revealing that about 10% of certain actinobacterial genera have the necessary gene cluster for macrolactam production.
  • The research identified mutations in polyketide synthases as key factors influencing macrolactam diversity, validated known producers like ciromicin A, and discovered new variants of macrotermycins, enhancing methods for future macrolactam discovery.
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Biobanks often contain several phenotypes relevant to diseases such as major depressive disorder (MDD), with partly distinct genetic architectures. Researchers face complex tradeoffs between shallow (large sample size, low specificity/sensitivity) and deep (small sample size, high specificity/sensitivity) phenotypes, and the optimal choices are often unclear. Here we propose to integrate these phenotypes to combine the benefits of each.

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  • - Genomic studies on endangered species help us understand how they evolve and survive despite population declines and bottlenecks, offering clues on avoiding extinction.
  • - The researchers focused on the muskox, which nearly went extinct after the last Ice Age but is now thriving, examining 108 whole genomes from current populations and an ancient specimen.
  • - They found that past climate changes influenced muskox demographics, with the white-faced subspecies showing extremely low genetic variation without signs of inbreeding depression, suggesting that gradual population declines might have removed harmful mutations.
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Forests are a substantial terrestrial carbon sink, but anthropogenic changes in land use and climate have considerably reduced the scale of this system. Remote-sensing estimates to quantify carbon losses from global forests are characterized by considerable uncertainty and we lack a comprehensive ground-sourced evaluation to benchmark these estimates. Here we combine several ground-sourced and satellite-derived approaches to evaluate the scale of the global forest carbon potential outside agricultural and urban lands.

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  • Scientific names and DNA sequences are vital for identifying and understanding biodiversity, with a focus on improving DNA-based identifications through curated genetic information.
  • The National Center for Biotechnology Information (NCBI) has curated over 18,000 prokaryotic genome assemblies and more than 21,000 fungal sequences, enhancing the accuracy of naming these organisms; however, eukaryotic sequences remain limited.
  • To address this gap, future efforts include sequencing type specimens from museums, stricter data requirements from the International Nucleotide Sequence Database Collaboration, and increased collaboration with data submitters to improve categorization and accessibility of genetic information.
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UNITE (https://unite.ut.ee) is a web-based database and sequence management environment for molecular identification of eukaryotes.

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The diatom Pseudo-nitzschia H. Peragallo is perhaps the most intensively researched genus of marine pennate diatoms, with respect to species diversity, life history strategies, toxigenicity, and biogeographical distribution. The global magnitude and consequences of harmful algal blooms (HABs) of Pseudo-nitzschia are particularly significant because of the high socioeconomic impacts and environmental and human health risks associated with the production of the neurotoxin domoic acid (DA) among populations of many (although not all) species.

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The domestic pigeon's exceptional phenotypic diversity was key in developing Darwin's Theory of Evolution and establishing the concept of artificial selection. However, unlike its domestic counterpart, its wild progenitor, the rock dove Columba livia has received considerably less attention. Therefore, questions regarding its domestication, evolution, taxonomy, and conservation status remain unresolved.

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  • * Despite being studied since the 1920s, inversions are still challenging to investigate due to their ability to obscure selection signatures through drift and hitchhiking.
  • * The review outlines how various selection mechanisms influence inversion evolution, highlighting that inversions interact with many factors, making it complex to analyze their evolutionary causes.
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Studies of material returned from Cb asteroid Ryugu have revealed considerable mineralogical and chemical heterogeneity, stemming primarily from brecciation and aqueous alteration. Isotopic anomalies could have also been affected by delivery of exogenous clasts and aqueous mobilization of soluble elements. Here, we show that isotopic anomalies for mildly soluble Cr are highly variable in Ryugu and CI chondrites, whereas those of Ti are relatively uniform.

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Using 2.046 botanically-inventoried tree plots across the largest tropical forest on Earth, we mapped tree species-diversity and tree species-richness at 0.1-degree resolution, and investigated drivers for diversity and richness.

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Limited historical admixture between European wildcats and domestic cats.

Curr Biol

November 2023

Palaeogenomics Group, Institute of Palaeoanatomy, Domestication Research and the History of Veterinary Medicine, Ludwig-Maximilians-Universität, 80539 Munich, Germany; School of Biological and Chemical Sciences, Queen Mary University of London, E1 4NS London, UK. Electronic address:

Domestic cats were derived from the Near Eastern wildcat (Felis lybica), after which they dispersed with people into Europe. As they did so, it is possible that they interbred with the indigenous population of European wildcats (Felis silvestris). Gene flow between incoming domestic animals and closely related indigenous wild species has been previously demonstrated in other taxa, including pigs, sheep, goats, bees, chickens, and cattle.

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Background: Climate change coupled with other anthropogenic pressures may affect the extent of suitable habitat for species and thus their distributions. This is particularly true for species occupying high-altitude habitats such as the gelada (Theropithecus gelada) of the Ethiopian highlands. To explore the impact of climate change on species distributions, Species Distribution Modelling (SDM) has been extensively used.

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Background: Allergic rhinitis (AR) is one of the most common chronic diseases worldwide. There are limited prospective long-term data regarding persistency and remission of AR. The objective of this study was to investigate the natural course of pollen-induced AR (pollen-AR) over 20 years, from childhood into early adulthood.

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