Avechroma - The Science of Bird Colours and Genetic Bird Colour Defects Updated and Revised
Kindle Edition or EPUB + Converted PDF نویسندگان: Herman van Niekerk
جزئیات
فرمت: Kindle Edition or EPUB + Converted PDF تاریخ انتشار نسخه الکترونیکی : September 20, 2026
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لینک: https://www.amazon.com/dp/B0H3KD91Y6
1,487,000 تومان
زمان تحویل: حداکثر 24 ساعت
توضیحات
According to new discoveries by the author, all the varied bird colours in nature and in aviaries are the result of one or more of 8 gene defects. Five of these defects were discovered and named by him. Every bird colour can now be explained and, if required, easily bred.In studying bird colours for more than 40 years, amongst others as a bird breeder, the author has made a number of new discoveries related to the creation and display of colours in birds, and especially changes in colour. It explains all the different bird colours seen by bird watchers in nature, and also point scientists in a direction to further the “Science of Avechroma”, the name he has given to the new science, or sub-science, of studying bird colours.Understanding bird colours is an interesting and fascinating subject, but very complex. The main reason for this is that the colours that the human eye perceives, are actually reflected or refracted light waves; the reflected light waves after the colours have been created by pigments and pigmetn mixes. To understand colours is, therefore a hybrid science between biology, optics, chromatics, chemistry, physics, psychology and genealogy.To relay the information to Mr. Average, the author makes extensive use of simplified graphics and illustrations. They would sometimes not correspond to exactly what one would see under, for instance, an electron microscope in the cell of a bird, but has the purpose of explaining the different conditions and processes to the layman.With the knowledge contained in this book, birdwatchers will now be able to fully understand the differently coloured birds of the same species that they may encounter in the field, while breeders may even completely understand the breeding of birds with different colours and breed their birds accordingly.The reason why conditions such as leucism and melanism have a number of different interpretations, some completely wrong, and why a doubtfull concept such as xanthocronism has been “created” by scientists is because of scientists trying to explain the forming and display of colours in birds from different scientific bases. To emphasise this viewpoint: You cannot explain the formation and display of biological, pigment based colours by optics, and you can not explain optically created colours biologically. And in birds colours are created and perceived both biologically and optically, while refraction of light also comes into play.Scientists can now incorporate the new discoveries about colour and genetic defects in birds as described in this book, in genetic science and adapt their present knowledge bases, theories and definitions where required. They can totally rethink dominance and recessiveness, they can kiss the old theories of xanthocronism goodbye, and look anew at the pure definitions for leucism and melanism. They can also rethink the theory of spontaneous mutations and replace it with the law of colour changes as a result of specific, identifiable, predictable and calculable colour defects. They can transfer the knowledge obtained from this publication, to other groups of living animals such as fishes, insects, plants and even man. Breeders breeding animals such as dogs, cats and horses will also benefit from this knowledge.In a further exciting development the author discovered that the same gene defects that he discovered, are also responsible for the different eye, skin and hair colours of humans, and the same gene defects that create colour blindness. Colour blindness is addressed in a separate publication by the author.Not only does this publication establish Avechroma as the Sciene of Colour in Birds, but it can contribute immensely to the expansion of knowledge in other scientific fields as well.The author is proud to submit the results of 40 years of intense study to you, the reader, in this publication.
1,487,000 تومان
زمان تحویل: حداکثر 24 ساعت