Blar i Department of Natural History på tittel

Viser treff 206-225 av 288

    • Parthenogenetic vs. sexual reproduction in oribatid mite communities 

      Maraun, Mark; Caruso, Tancredi; Hense, Jonathan; Lehmitz, Ricarda; Mumladze, Levan; Murvanidze, Maka; Nae, Ioana; Schulz, Julia; Seniczak, Anna Beata; Scheu, Stefan (Peer reviewed; Journal article, 2019)
      The dominance of sex in Metazoa is enigmatic. Sexual species allocate resources to the production of males, while potentially facing negative effects such as the loss of well‐adapted genotypes due to recombination, and ...

    • Patterns of coevolution of ambrosia beetle mycangia and the Ceratocystidaceae, with five new fungal genera and seven new species 

      Mayers, CG; Harrington, TC; Masuya, H; Mcnew, DL; Jordal, Bjarte Henry; Shih, H-H; Roets, F; Kietzka, GJ (Peer reviewed; Journal article, 2020)
      Ambrosia beetles farm specialised fungi in sapwood tunnels and use pocket-like organs called mycangia to carry propagules of the fungal cultivars. Ambrosia fungi selectively grow in mycangia, which is central to the ...

    • Patterns of diversification amongst tropical regions compared: a case study in Sapotaceae 

      Armstrong, Kate E.; Stone, Graham N.; Nicholls, James A.; Valderrama Escallon, Eugenio; Anderberg, Arne A.; Smedmark, Jenny; Gautier, Laurent; Naciri, Yamama; Milne, Richard; Richardson, James E. (Peer reviewed; Journal article, 2014-12-03)
      Species diversity is unequally distributed across the globe, with the greatest concentration occurring in the tropics. Even within the tropics, there are significant differences in the numbers of taxa found in each continental ...

    • Pelagic deep‑sea fauna observed on video transects in the southern Norwegian Sea 

      Neitzel, Philipp; Hosia, Aino Laila Johanna; Piatkowski, Uwe; Hoving, Henk-Jan (Journal article; Peer reviewed, 2021)
      Observations of the diversity, distribution and abundance of pelagic fauna are absent for many ocean regions in the Atlantic, but baseline data are required to detect changes in communities as a result of climate change. ...

    • A phylogenetic and taxonomic assessment of Afrotropical Micracidini (Coleoptera, Scolytinae) reveals a strong diversifying role for Madagascar 

      Jordal, Bjarte Henry (Journal article; Peer reviewed, 2021)
      Afrotropical bark beetle genera in the tribe Micracidini are revised and an identification key provided. The new classification is based on phylogenetic analyses of five molecular markers (COI, EF-1α, 28S, PABP1, CAD) in ...

    • Phylogenetic conservatism and biogeographic affinity influence woody plant species richness–climate relationships in eastern Eurasia 

      Su, Xiangyan; Shrestha, Nawal; Xu, Xiaoting; Sandanov, Denis; Wang, Qinggang; Wang, Siyang; Dimitrov, Dimitar; Wang, Zhiheng (Journal article; Peer reviewed, 2020)
      Mechanisms underlying species richness patterns remain a central yet controversial issue in biology. Climate has been regarded as a major determinant of species richness. However, the relative influences of different ...

    • The phylogenetic systematics of Spilomelinae and Pyraustinae (Lepidoptera: Pyraloidea: Crambidae) inferred from DNA and morphology 

      Mally, Richard; Hayden, James E.; Neinhuis, Christoph; Jordal, Bjarte Henry; Nuss, Matthias (Peer reviewed; Journal article, 2019)
      Spilomelinae and Pyraustinae form a species-rich monophylum of Crambidae (snout moths). Morphological distinction of the two groups has been difficult in the past, and the morphologically heterogenous Spilomelinae has not ...

    • Phylogenomics of Aplacophora (Mollusca, Aculifera) and a solenogaster without a foot 

      Kocot, Kevin M.; Todt, Christiane; Mikkelsen, Nina Therese; Halanych, Kenneth M (Peer reviewed; Journal article, 2019)
      Recent molecular phylogenetic investigations strongly supported the placement of the shell-less, worm-shaped aplacophoran molluscs (Solenogastres and Caudofoveata) and chitons (Polyplacophora) in a clade called Aculifera, ...

    • Phylogeny and Cryptic Diversity of Diopatra (Onuphidae, Annelida) in the East Atlantic 

      Hektoen, Martin Mejdell; Willassen, Endre; Budaeva, Nataliya (Journal article; Peer reviewed, 2022)
      Diopatra Audouin & Milne-Edwards, 1833 is a species rich genus that is common in tropical and subtropical regions. The genus is readily identified by its striking, spiral branchiae, but species identification has historically ...

    • The phylogeny of pholcid spiders: a critical evaluation of relationships suggested by molecular data (Araneae, Pholcidae) 

      Huber, Bernhard A.; Eberle, Jonas; Dimitrov, Dimitar (Peer reviewed; Journal article, 2018-10-10)
      With almost 600 species, the latest molecular phylogeny of pholcid spiders (Eberle et al. 2018, BMC Evolutionary Biology) more than triples the largest previously available molecular phylogeny of the family. At the level ...

    • Phylogeny of the orb-weaving spider family Araneidae(Araneae: Araneoidea) 

      Scharff, Nikolaj; Coddington, Jonathan A.; Blackledge, Todd A.; Agnarsson, Ingi; Framenau, Volker W.; Szüts, Tamás; Hayashi, Cheryl Y.; Dimitrov, Dimitar (Peer reviewed; Journal article, 2020)
      We present a new phylogeny of the spider family Araneidae based on five genes (28S, 18S, COI, H3 and 16S) for 158 taxa, identified and mainly sequenced by us. This includes 25 outgroups and 133 araneid ingroups representing ...

    • Phylogeographic structure of two sympatric species of Mediimorda Méquignon, 1946 (Mordellidae, Coleoptera) 

      Sanz-laParra, Annui Malla; García-París, Mario; López-Estrada, Estefany Karen (Journal article; Peer reviewed, 2023)
      Sympatric distribution and syntopy are not common in closely related species since sporadic crosses may lead to the formation of hybrid zones disrupting the differentiation of sympatric incipient species. In Central Spain ...

    • Phylogeography of Ramalina farinacea (Lichenized Fungi, Ascomycota) in the Mediterranean Basin, Europe, and Macaronesia 

      Moya, Patricia; Garrido-Benavent, Isaac; Chiva, Salvador; Pérez-Ortega, Sergio; Blázquez, Miguel; Pazos, Tamara; Hamel, Tarek; Myllys, Leena; Tønsberg, Tor; Esseen, Per-Anders; Carrasco, Pedro; Barreno, Eva (Journal article; Peer reviewed, 2023)
      Ramalina farinacea is an epiphytic lichen-forming fungus with a broad geographic distribution, especially in the Northern Hemisphere. In the eighties of the last century, it was hypothesized that R. farinacea had originated ...

    • Placoid scales in bioluminescent sharks: Scaling their evolution using morphology and elemental composition 

      Lourtie, Alexia; Duchatelet, Laurent; Straube, Nicolas; Puozzo, Nathan; Grace, Mark A.; Naylor, Gavin J. P.; Delroisse, Jérome (Journal article; Peer reviewed, 2022)
      Elasmobranchs are characterised by the presence of placoid scales on their skin. These scales, structurally homologous to gnathostome teeth, are thought to have various ecological functions related to drag reduction, ...

    • A Pleistocene origin of the strandflat coastal platform in southwestern Scandinavia 

      Fossen, Haakon (Journal article; Peer reviewed, 2023)
      An impressively extensive shore platform, the strandflat, is cut 20–50 km into hard crystalline bedrock along most of the Norwegian coastline. Its age and origin have been debated for more than a century, including a model ...

    • A pollen analytical study of faeces from wiegon, Anas penelope . A case study 

      Moe, Dagfinn (Journal article, 2018)
      Pollen analysis of faeces from bird (also mammals (King 1977)) gives important additional information about attractive and nutrient rich pla nt fodder hardly traceable using macro analysis or by field observation (e.g. ...

    • Polychaetes from Jan Mayen (Annelida, Polychaeta) 

      Bakken, Torkild; Kongsrud, Jon Anders; Oug, Eivind; Cochrane, Sabine; Moen, Toril Loennechen; Solbakken, Beata Elisabeth Borowiec (Peer reviewed; Journal article, 2010)
      A thorough literature review has been undertaken to establish the first complete account of polychaetes recorded from the area around the volcanic island of Jan Mayen. The annotated checklist lists 121 species-level taxa, ...

    • A preboreal elk (Alces alces L., 1758) antler from south-eastern Norway 

      Grøndahl, Finn Audun; Hufthammer, Anne Karin; Dahl, Svein Olaf; Rosvold, Jørgen (Peer reviewed; Journal article, 2010)
      In 1895 a shed elk antler was found in a mire on a farm near Fluberg, in Søndre Land municipality in south-eastern Norway. The antler was first radiocarbon dated in 2008 and yielded the age 9,100 ± 50 BP (8,340 – 8,250 ...

    • The preservation of ancient DNA in archaeological fish bone 

      Ferrari, Giada; Cuevas, Angelica; Gondek, Agata; Ballantyne, Rachel; Kersten, Oliver; Palsdottir, Albina Hulda; van der Jagt, Inge; Hufthammer, Anne Karin; Ystgaard, Ingrid; Wickler, Stephen; Bigelow, Gerald F; Harland, Jennifer; Nicholson, Rebecca; Orton, David; Clavel, Benoît; Boessenkool, Sanne; Barrett, James H; Star, Bastiaan (Journal article; Peer reviewed, 2021)
      The field of ancient DNA is dominated by studies focusing on terrestrial vertebrates. This taxonomic bias limits our understanding of endogenous DNA preservation for species with different bone physiology, such as teleost ...

    • Preventing species extinctions: A global conservation consortium for Erica 

      Pirie, Michael David; Blackhall-Miles, Robbie; Bourke, Greg; Crowley, Dan; Ebrahim, Ismail; Forest, Félix; Knaack, Michael; Koopman, Rupert; Lansdowne, Alex; Nürk, Nicolai M.; Osborne, Jo; Pearce, Timothy R.; Rohrauer, Daniel; Smit, Martin; Wilman, Victoria (Journal article; Peer reviewed, 2022)
      Societal Impact Statement Human-caused habitat destruction and transformation is resulting in a cascade of impacts to biological diversity, of which arguably the most fundamental is species extinctions. The Global ...