Four new species of Schilbetrema (Monogenea: Dactylogyridae) from Schilbe spp. (Siluriformes: Schilbeidae) in the Sanaga River (Sanaga Basin) and Boumba River (Congo Basin) in Cameroon [PDF]
Zoologia (Curitiba)Monogeneans are among the main parasites affecting aquaculture worldwide. The present study describes four new species belonging to Schilbetrema, which is only known from African catfishes.
Etienne D. Bassock Bayiha +4 more
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Al(III) and Fe(III) binding by humic substances in freshwaters, and implications for trace metal speciation. [PDF]
, 2002 Published experimental data for Al(III) and Fe(III) binding by fulvic and humic acids can be explained approximately by the Humic Ion-Binding Model VI. The model is based on conventional equilibrium reactions involving protons, metal aquo ions and their ...
Tipping, Edward +3 more
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Speciation without Species: A Final Word [PDF]
, 2018 Here I present the several models currently popular for understanding speciation in prokaryotes, in particular bacteria. I will argue that “speciation”, as a process or collection of independent but interacting processes sometimes serving to form ...
Doolittle, W. Ford
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Ecological disruptive selection acting on quantitative loci can drive sympatric speciation
npj Systems Biology and ApplicationsThe process of speciation generates biodiversity. According to the null model of speciation, barriers between populations arise in allopatry, where, prior to biology, geography imposes barriers to gene flow.
Pavithra Venkataraman, Supreet Saini
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Study of lead phytoavailability for atmospheric industrial micronic and sub-micronic particles in relation with lead speciation [PDF]
, 2009 Particles from channelled emissions of a battery recycling facility were size-segregated and investigated to correlate their speciation and morphology with their transfer towards lettuce. Microculture experiments carried out with various calcareous soils
Sobanska, Sophie +4 more
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GWCarb v1.0: carbonate speciation tool [PDF]
This spreadsheet calculates carbonate speciation using carbonate equilibrium equations at standard conditions (T=25°C) with ionic strength corrections.
Taulis, Mauricio
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Design of a Hollow Fiber Supported Liquid Membrane System for Zn Speciation in Natural Waters
Membranes, 2018 A supported liquid membrane-hollow fiber system (HFSLM) has been developed to determine zinc speciation in aquatic environments. The liquid membrane consisted of an organic solution of bis-(2-ethylhexyl)phosphoric acid (D2EHPA) impregnated in the ...
Clàudia Fontàs +2 more
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Trémaux on species: A theory of allopatric speciation (and punctuated equilibrium) before Wagner [PDF]
, 2008 Pierre Trémaux’s 1865 ideas on speciation have been unjustly derided following his acceptance by Marx and rejection by Engels, and almost nobody has read his ideas in a charitable light.
Nelson, Gareth J., Wilkins, John S.
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Parasite, 2008 As many others parasites, speciation of flukes depends on the genetic characteristics and on ploidia. Ploidia of flukes can be different in a same species. In Asia, diploid, triploid and hybrid (2n/3n) populations are encountered.
Dreyfuss G., Rondelaud D.
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