Results 121 to 130 of about 7,917 (185)
Molecular data reveal a cryptic species within the Culex pipiens mosquito complex [PDF]
, 2016 This is the peer reviewed version of the following article: Dumas, E., Atyame, C. M., Malcolm, C. A., Le Goff, G., Unal, S., Makoundou, P., Pasteur, N., Weill, M. and Duron, O.
Atyame +49 more
core +2 more sources
BMC Genetics, 2011 Background Main waterfowl migration systems are well understood through ringing activities. However, in mallards (Anas platyrhynchos) ringing studies suggest deviations from general migratory trends and traditions in waterfowl.
Kraus Robert HS +6 more
doaj +1 more source
The Radical Pair Mechanism and the Avian Chemical Compass: Quantum Coherence and Entanglement [PDF]
arXiv, 2015 We review the spin radical pair mechanism which is a promising explanation of avian navigation. This mechanism is based on the dependence of product yields on (1) the hyperfine interaction involving electron spins and neighboring nuclear spins and (2) the intensity and orientation of the geomagnetic field.
arxiv
Strong mitochondrial DNA support for a Cretaceous origin of modern avian lineages
BMC Biology, 2008 Background Determining an absolute timescale for avian evolutionary history has proven contentious. The two sources of information available, paleontological data and inference from extant molecular genetic sequences (colloquially, 'rocks' and 'clocks'),
Sorenson Michael D +4 more
doaj +1 more source
Current Research in Parasitology and Vector-Borne Diseases, 2021 Crassiphialinae Sudarikov, 1960 is a large subfamily of the Diplostomidae Poirier, 1886 with a complex taxonomic history. It includes a diversity of species parasitic in the intestines of avian and mammalian definitive hosts worldwide.
Tyler J. Achatz +10 more
doaj
The roles of direct and environmental transmission in stochastic avian flu epidemic recurrence [PDF]
arXiv, 2017 We present an analysis of an avian flu model that yields insight into the role of different transmission routes in the recurrence of avian influenza epidemics. Recent modelling work on avian influenza in wild bird populations takes into account demographic stochasticity and highlights the importance of environmental transmission in determining the ...
arxiv
Geographic variation in malarial parasite lineages in the Common Yellowthroat (Geothlypis trichas)
, 2008 Our current understanding of migration routes of many birds is limited and researchers have employed various methods to determine migratory patterns. Recently, parasites have been used to track migratory birds.
Durrant, K. L. +4 more
core +1 more source
A key to selected rockfishes (Sebastes spp.) based on mitochondrial DNA restriction fragment analysis [PDF]
, 2006 Larval and juvenile rockfishes (Sebastes spp.) are difficult to identify using morphological characters. We developed a key based on sizes of restriction endonuclease fragments of the NADH dehydrogenase-3 and -4 (ND3/ND4) and 12S and 16S ribosomal RNA ...
Asahida, Takashi +5 more
core
Systematic Approach on Differences in Avian Viral Proteins Based on Carbon Composition [PDF]
arXiv, 2011 The distribution of amino acid along the protein sequences plays an imperative role in facilitating different biological functions. Currently, there is insufficient scientific data, which represents the arrangement of amino acid in the proteins based on atomic composition.
arxiv
International Journal for Parasitology: Parasites and Wildlife, 2019 Avian communities from South America harbor an extraordinary diversity of Leucocytozoon species (Haemosporida, Leucocytozoidae). Here, of 890 birds sampled, 10 (1.2%) were infected with Leucocytozoon parasites. Among them, two new species were discovered
Ingrid A. Lotta +5 more
doaj