Browsing Naturhistorisk museum by Title
Now showing items 179-198 of 224
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Range contraction and increasing isolation of a polar bear subpopulation in an era of sea ice loss. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)Climate change is expected to result in range shifts and habitat fragmentation for many species. In the Arctic, loss of sea ice will reduce barriers to dispersal or eliminate movement corridors, resulting in increased ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)Gene expression changes potentially play an important role in adaptive evolution under human‐induced selection pressures, but this has been challenging to demonstrate in natural populations. Fishing exhibits strong selection ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)Background The temporal origin and diversification of orchids (family Orchidaceae) has been subject to intense debate in the last decade. The description of the first reliable fossil in 2007 enabled a direct ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)Ethnopharmacological relevance What are the minimum methodological and conceptual requirements for an ethnopharmacological field study? How can the results of ethnopharmacological field studies be reported so that researchers ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)Much adaptive evolutionary change is underlain by mutational variation in regions of the genome that regulate gene expression rather than in the coding regions of the genes themselves. An understanding of the role of gene ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)Both molecular and morphologic characters support the reinstatement of Leuctra biellensis Festa, 1942 as a valid species distinct from Leuctra nigra (Olivier, 1811). Genetic distances between L. biellensis and the different ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)Orchids are one of the largest plant families and are commercially traded for a variety of purposes, including as ornamental plants, medicinal products and food. These markets involve thousands of species, which may be ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)Posted here with permission from the journal. http://journals.tubitak.gov.tr/zoology/
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)The study of biodiversity spans many disciplines and includes data pertaining to species distributions and abundances, genetic sequences, trait measurements, and ecological niches, complemented by information on collection ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)Previous studies based on single mitochondrial markers have shown that the common raven (Corvus corax) consists of two highly diverged lineages that are hypothesised to have undergone speciation reversal upon secondary ...
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(Doctoral thesis / Doktoravhandling, 2009)Large herbivores such as sheep affect plants directly and indirectly through selective foraging, trampling, urination and defecation, thereby modifying intra- and interspecific interactions and altering resource availability ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2014)Intraspecific competition for food is expected to increase the trophic niche width of consumers, defined here as their diet diversity, but this process has been little studied in herbivores. Population densities of small ...
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(Doctoral thesis / Doktoravhandling, 2013)The main objectives of this thesis are to study patterns and processes of plant speciation in arctic and alpine diploid plants. Cryptic species are here referred to as morphologically similar individuals belonging to the ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)Background One of the biggest challenges in avian taxonomy is the delimitation of allopatric species because their reproductive incompatibility cannot be directly studied in the wild. Instead, reproductive ...
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(Doctoral thesis / Doktoravhandling, 2010)Sperm cells are the most variable animal cells, and a tremendous variation in sperm phenotypes exists among species, from minute amoeboid sperm to giant sperm in some species of fruit flies. Much effort has been devoted ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)Divergent sexual selection within allopatric populations may result in divergent sexual phenotypes, which can act as reproductive barriers between populations upon secondary contact. This hypothesis has been most tested ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2016)Sperm morphology is highly diversified across the animal kingdom and recent comparative evidence from passerine birds suggests that postcopulatory sexual selection is a significant driver of sperm evolution. In the present ...
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Stauropoctonus bombycivorus (Gravenhorst, 1829) in Norway (Hymenoptera, Ichneumonidae, Ophioninae) (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)The conspicuous icneumonid fly Stauropoctonus bombycivorus (Gravenhorst, 1829) is recorded for the first time in Norway. Four specimens have been captured in light-traps at three different localities in 2007: Hvaler in ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)One new order, one new family, and one new combination are presented, as the result of molecular phylogenetic analyses. The new order Stereopsidales and the new family Stereopsidaceae are described incorporating Stereopsis ...
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(Doctoral thesis / Doktoravhandling, 2008)The principal aim of this study was to investigate vegetation-environment relationships and examine patterns of changes in forest understorey vegetation in five Chinese subtropical forests. Furthermore, an Ecological Field ...