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GENETIC DIVERGENCE, REPRODUCTIVE ISOLATION, AND MARINE SPECIATION
allopatric speciation dispersal molecular evolutio
2015/12/17
In marine species, high dispersal is often associated with only mild genetic
differentiation over large spatial scales. Despite this generalization, there are
numerous reasons for the accumulation o...
Chickens First Speciation by “Hopeful Monsters” in Fraternal Supertwins
hopeful monster chickens first speciation evolution gross mutation
2015/7/28
The idea of “hopeful monster” was proposed by Goldschmidt who envisioned that speciation could occur instantaneously via major chromosomal rearrangement in a one-step process; but he could not unravel...
Speciation of 38 elements in eight GSJ geochemical sedimentary reference materials determined using a sequential extraction technique
CR protocol geochemical reference material sequential extraction speciation
2017/4/11
A sequential extraction procedure developed by the European Community Bureau of Reference (BCR) was applied to
eight sediment geochemical reference materials provided by the Geological Survey of Japa...
Speciation and Geochemical Behaviour of Heavy Metals in Industrial Area Soil of Mysore City, India
Soil Speciation of Heavy Metals Sequential Extraction
2013/3/12
Soil is a major reservoir for contaminants as it possesses an ability to bind various chemicals. These chemicals can exist in various forms in soil and different forces keep them bound to soil particl...
Mercury speciation and safety of fish from important fishing locations in the Czech Republic
total mercury methylmercury muscle liver gonads scales MeHg/THg ratio fish consumption
2014/2/25
The aim of the study was to describe the distribution of total mercury in the tissues of fish originating from important Czech fishing locations and to determine the level of methylmercury as a percen...
Distribution of branch lengths and phylogenetic diversity under homogeneous speciation models
phylogenetic tree birth–death process Yule model branch length
2011/9/23
Abstract: The constant rate birth--death process is a popular null model for speciation and extinction. If one removes extinct and non-sampled lineages, this process induces `reconstructed trees' whic...
The Moran model as a dynamical process on networks and its implications for neutral speciation
dynamical process networks implications
2011/1/5
In genetics the Moran model describes the neutral evolution of a bi-allelic gene in a population of haploid individuals subjected to mutations. We show in this paper that this model can be mapped into...
Ecological speciation in a cyclic parthenogen: Sexual capability of experimental hybrids betweenDaphnia pulexandDaphnia pulicaria
Ecological speciation Sexual capability experimental hybrids between Daphnia pulex and Daphnia pulicaria
2014/4/17
Daphnia pulexandDaphnia pulicariaare cyclically parthenogenetic crustaceans that are distributed widelyin North American freshwaters. Hybrids ofD. pulexandD. pulicariaare common in the wild, where pop...
Mercury emission and speciation of coal-fired power plants in China
Mercury emission coal-fired power plants China
2010/2/21
Comprehensive field measurements are needed to understand the mercury emissions from Chinese power plants and to improve the accuracy of emission inventories. Characterization of mercury emissions and...
Speciation and Analysis of Arsenic(III) and Arsenic(V) by Electrochemical Hydride Generation Spectrophotometric Method
Speciation and Analysis Arsenic(III) Arsenic(V) Electrochemical Hydride Generation Spectrophotometric Method
2010/9/17
A simple method was developed for speciation and spectrophotometric determination of inorganic As(III) and As(V) using an electrochemical hydride generation technique. For speciation of As(III) and As...
Influence of titanium dioxide nanoparticles on speciation and bioavailability of arsenite
Arsenic TiO 2 Nanoparticles Bioaccumulation Carp Facilitated transport
2013/12/12
In this study, the influence of the co-existence of TiO2nanoparticles on the speciation of arsenite [As(III)]was studied by observing its adsorption and valence changing. Moreover, the influence of Ti...
Speciation and the evolution of gamete recognition genes: pattern and process
bindin lysin sexual confl ict
2015/12/11
Proteins on gamete surfaces are major determinants of
fertilization success, particularly in free-spawning animals.
Molecular analyses of these simple genetic systems show
rapid evolution, positive...
Effect of Ocean Acidification on the Speciation of Metals in Seawater
Air carbon dioxide water pH value water calcium animals biological process
2015/7/6
Increasing atmospheric CO2 over the next 200 years will cause the pH of ocean waters to decrease further. Many recent studies have examined the effect of decreasing pH on calcifying organisms in ocean...
Equilibrium Speciation Models for Hg,Cd,and Pb in the Gulf of Bothnia and its Catchment Area
Equilibrium Speciation Models Gulf of Bothnia Catchment Area
2009/10/26
Equilibrium speciation models were established for Hg (11), Cd (11) and Pb (11)
in bog-, river- and sea water having a composition corresponding to that of the
Gulf of Bothnia (6%0 salinity). The ca...
A model of Fe speciation and biogeochemistry at the Tropical Eastern North Atlantic Time-Series Observatory site
Fe speciation biogeochemistry Tropical Eastern North Atlantic Time-Series Observatory site
2010/1/21
A one-dimensional model of Fe speciation and biogeochemistry, coupled with the General Ocean Turbulence Model (GOTM) and a NPZD-type ecosystem model, is applied for the Tropical Eastern North Atlantic...