2,442 results match your criteria: "Natural History Museum of Denmark; Universitetsparken 15; Copenhagen; Denmark.. perkovsk@gmail.com.[Affiliation]"

Understanding global patterns of genetic diversity is essential for describing, monitoring, and preserving life on Earth. To date, efforts to map macrogenetic patterns have been restricted to vertebrates, which comprise only a small fraction of Earth's biodiversity. Here, we construct a global map of predicted insect mitochondrial genetic diversity from cytochrome c oxidase subunit 1 sequences, derived from open data.

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The founding charter of the Omic Biodiversity Observation Network (Omic BON).

Gigascience

December 2022

HGF MPG Joint Re-search Group for Deep-Sea Eco-logy and Tech-no-logy, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven 27570, Germany.

Omic BON is a thematic Biodiversity Observation Network under the Group on Earth Observations Biodiversity Observation Network (GEO BON), focused on coordinating the observation of biomolecules in organisms and the environment. Our founding partners include representatives from national, regional, and global observing systems; standards organizations; and data and sample management infrastructures. By coordinating observing strategies, methods, and data flows, Omic BON will facilitate the co-creation of a global omics meta-observatory to generate actionable knowledge.

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Determining the drivers of non-native plant invasions is critical for managing native ecosystems and limiting the spread of invasive species. Tree invasions in particular have been relatively overlooked, even though they have the potential to transform ecosystems and economies. Here, leveraging global tree databases, we explore how the phylogenetic and functional diversity of native tree communities, human pressure and the environment influence the establishment of non-native tree species and the subsequent invasion severity.

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Modern advances in DNA sequencing hold the promise of facilitating descriptions of new organisms at ever finer precision but have come with challenges as the major Codes of bionomenclature contain poorly defined requirements for species and subspecies diagnoses (henceforth, species diagnoses), which is particularly problematic for DNA-based taxonomy. We, the commissioners of the International Commission on Zoological Nomenclature, advocate a tightening of the definition of "species diagnosis" in future editions of Codes of bionomenclature, for example, through the introduction of requirements for specific information on the character states of differentiating traits in comparison with similar species. Such new provisions would enhance taxonomic standards and ensure that all diagnoses, including DNA-based ones, contain adequate taxonomic context.

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Acquisition of new genes often results in the emergence of novel functions and is a key step in lineage-specific adaptation. As a group of sessile crustaceans, barnacles establish permanent attachment through initial cement secretion at the larval phase followed by continuous cement secretion in juveniles and adults. However, the origins and evolution of barnacle larval and adult cement proteins remain poorly understood.

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Article Synopsis
  • The Dog10K project sequenced genomes from 1,987 canids, including 1,611 dogs of 321 breeds, to study genetics related to domestication and health.
  • The analysis identified over 48 million genetic variants and highlighted that most breeds exhibit strong genetic clustering, with German Shepherds showing notable genetic similarities with various breeds.
  • This extensive dataset enhances understanding of canine genetics and can be used as a reliable reference for future genetic studies, with all data now publicly accessible.
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 sp. nov. - a new species of Thiotrichinae (Lepidoptera, Gelechiidae) from south-eastern Europe.

Zookeys

August 2023

Zoological Museum, Natural History Museum of Denmark, Universitetsparken 15, DK-2100 Copenhagen, Denmark Natural History Museum of Denmark Copenhagen Denmark.

is described from Greece and Croatia. The systematic position of the new species within is discussed based on external and genitalia characters and from DNA barcodes of the mitochondrial COI gene (cytochrome c oxidase 1). Adults, details of external morphology, and male and female genitalia of the new species are illustrated.

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  • The black rhinoceros is critically endangered, with its numbers drastically reduced due to hunting and poaching, particularly in the late 20th century.
  • Researchers conducted genomic studies on 63 historical black rhinoceros specimens to identify six major historic populations and their subpopulations, revealing significant genetic structure influenced by geographic barriers.
  • Findings from this genetic analysis provide insights for developing urgent management strategies aimed at conserving the remaining diversity of black rhinoceros populations.
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The Sicilian wolf remained isolated in Sicily from the end of the Pleistocene until its extermination in the 1930s-1960s. Given its long-term isolation on the island and distinctive morphology, the genetic origin of the Sicilian wolf remains debated. We sequenced four nuclear genomes and five mitogenomes from the seven existing museum specimens to investigate the Sicilian wolf ancestry, relationships with extant and extinct wolves and dogs, and diversity.

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Diverse values of nature for sustainability.

Nature

August 2023

Laboratorio Ecología Humana, Instituto Venezolano de Investigaciones Científicas, Altos de Pipe, Venezuela.

Twenty-five years since foundational publications on valuing ecosystem services for human well-being, addressing the global biodiversity crisis still implies confronting barriers to incorporating nature's diverse values into decision-making. These barriers include powerful interests supported by current norms and legal rules such as property rights, which determine whose values and which values of nature are acted on. A better understanding of how and why nature is (under)valued is more urgent than ever.

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Owing to a long history of anthropogenic pressures, freshwater ecosystems are among the most vulnerable to biodiversity loss. Mitigation measures, including wastewater treatment and hydromorphological restoration, have aimed to improve environmental quality and foster the recovery of freshwater biodiversity. Here, using 1,816 time series of freshwater invertebrate communities collected across 22 European countries between 1968 and 2020, we quantified temporal trends in taxonomic and functional diversity and their responses to environmental pressures and gradients.

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Major Revisions in Pancrustacean Phylogeny and Evidence of Sensitivity to Taxon Sampling.

Mol Biol Evol

August 2023

Department of Invertebrate Zoology, US National Museum of Natural History, Smithsonian Institution, Washington, DC, USA.

The clade Pancrustacea, comprising crustaceans and hexapods, is the most diverse group of animals on earth, containing over 80% of animal species and half of animal biomass. It has been the subject of several recent phylogenomic analyses, yet relationships within Pancrustacea show a notable lack of stability. Here, the phylogeny is estimated with expanded taxon sampling, particularly of malacostracans.

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Stingless bee classification and biology (Hymenoptera, Apidae): a review, with an updated key to genera and subgenera.

Zookeys

July 2023

Department of Agroecology, Section for Entomology and Plant Pathology, Forsøgsvej 1, 4200 Slagelse, Denmark.

Stingless bees (Meliponini) are a ubiquitous and diverse element of the pantropical melittofauna, and have significant cultural and economic importance. This review outlines their diversity, and provides identification keys based on external morphology, brief accounts for each of the recognized genera, and an updated checklist of all living and fossil species. In total there are currently 605 described extant species in 45 extant genera, and a further 18 extinct species in nine genera, seven of which are extinct.

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The taxonomic status of the now likely extirpated Korean Peninsula wolf has been extensively debated, with some arguing it represents an independent wolf lineage, . To investigate the Korean wolf's genetic affiliations and taxonomic status, we sequenced and analysed the genomes of a Korean wolf dated to the beginning of the 20th century, and a captive wolf originally from the Pyongyang Central Zoo. Our results indicated that the Korean wolf bears similar genetic ancestry to other regional East Asian populations, therefore suggesting it is not a distinct taxonomic lineage.

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The informal name 'Big Yellows' is proposed for a possibly non-monophyletic assemblage of large-bodied, yellow-coloured species of flesh flies found in the Melanesian archipelagoes of Bismarck, Solomon and Vanuatu. The group comprises several species of Sarcophaga Meigen subgenus Sarcorohdendorfia Baranov plus the only species of Sarcophaga subgenus Chrysosarcophaga Townsend. Two new species are described from Melanesia: Sarcophaga (Sarcorohdendorfia) confusio sp.

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The scientific life of Robert P. Higgins was devoted to meiofauna, microscopically small animals living in aquatic sediments from the intertidal to hadal depths worldwide. He focused on the taxonomy, life-history, and ecology of the marine taxa Kinorhyncha, Tardigrada, and Priapulida and co-discovered the phylum Loricifera.

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Article Synopsis
  • The study investigates genetic differences between northern and southern populations of phytotelmic frogs in Madagascar, specifically focusing on the Guibemantis (Pandanusicola) pulcher.
  • Molecular analysis revealed a genetic divergence between the populations, with a significant uncorrected pairwise distance in the 16S rRNA gene, indicating they may represent distinct species.
  • The northern frogs were also found to have unique color patterns, leading to the conclusion that they should be classified as a new species, named Guibemantis (Pandanusicola) pulcherrimus sp. nov.
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The Macaronesian species of the muscid genus Helina are revised. The genus is represented in the Canary Islands by 9 species, in Madeira by 7 species, and in the Azores Islands by 1 species. Four species, one divided in two subspecies, are endemic to the Canary Islands: Helina grancanariae sp.

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Nominal genera and species misidentified to family by A.Z. Lehrer are revised and annotated, with habitus photographs given for all holotypes.

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The earliest Eocene odonate genus Furagrion Petrulevičius et al. from the Danish Fur Formation is revised based on eighteen specimens, two of which apparently have been lost since their publication. The holotype of Phenacolestes jutlandicus Henriksen, type species of Furagrion, is incomplete and lacks the characters currently used to differentiate species, genera and higher taxa in Odonata.

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  • The Blommersia wittei complex includes widespread frog species in western and northern Madagascar and has also reached the Comoran island of Mayotte.
  • After analyzing DNA sequences and other data, researchers identified a new species, Blommeria bara sp. nov., and confirmed its distinct evolutionary lineage in western Madagascar.
  • The complex showcases both widespread species and rare, localized lineages, indicating the need for further research to understand interactions between these groups and potential variations in their morphology and bioacoustics.
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Cats are hypercarnivorous, opportunistic animals that have adjusted to anthropogenic environments since the Neolithic period. Through humans, either by direct feeding and/or scavenging on food scraps, the diet of cats has been enriched with animals that they cannot kill themselves (e.g.

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Multiple paths toward repeated phenotypic evolution in the spiny-leg adaptive radiation (Tetragnatha; Hawai'i).

Mol Ecol

September 2023

Berkeley Evolab, Department of Environmental Science, Policy, and Management, UC Berkeley, Berkeley, California, USA.

The repeated evolution of phenotypes provides clear evidence for the role of natural selection in driving evolutionary change. However, the evolutionary origin of repeated phenotypes can be difficult to disentangle as it can arise from a combination of factors such as gene flow, shared ancestral polymorphisms or mutation. Here, we investigate the presence of these evolutionary processes in the Hawaiian spiny-leg Tetragnatha adaptive radiation, which includes four microhabitat-specialists or ecomorphs, with different body pigmentation and size (Green, Large Brown, Maroon, and Small Brown).

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A new subgenus, subgen. nov., is described from the Cretaceous amber of North Myanmar (Kachin State) and assigned to the genus .

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