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The conservation and restoration of feathers is the practice of maintaining and preserving feathers or featherwork objects, and requires knowledge of feather anatomy, properties, specialized care procedures, and environmental influences. This practice may be approached through preventive and/or interventive techniques.
Slicks are meandering lines of smooth water on the ocean surface that are ubiquitous coastal features around the world. [85] A variety of mechanisms can cause slick formation, including tidal and headland fronts, and as a consequence of subsurface waves called internal waves. [86]
Marine conservation is included in the United Nations framework of Sustainable Development Goals (SDGs), most notably in SDG 14 ("Life below water"). The text of Target 14.5 is: "By 2020, conserve at least 10 per cent of coastal and marine areas, consistent with national and international law and based on the best available scientific ...
Mechanical waves propagate through a medium – air or water, making it oscillate as they pass by. [68] Wind waves are sea surface waves that create the characteristic chaotic pattern of any large body of water, though their statistical behaviour can be predicted with wind wave models. [ 69 ]
Feathers: The Evolution of a Natural Miracle is a natural history book by American conservation biologist Thor Hanson. Published by Basic Books in 2011 and written for general audiences, the book discusses the significance of feathers , their evolution , and their history both in nature and in use by humans.
Conservation genetics studies genetic phenomena that impact the conservation of a species. Most conservation efforts focus on managing population size, but conserving genetic diversity is typically a high priority as well. High genetic diversity increases survival because it means greater capacity to adapt to future environmental changes. [5]
The amplitude of this bound long wave varies with the square of the wave height, and is only significant in shallow water; Wave–current interaction – in varying mean-flow fields , the energy exchanges between the waves and the mean flow, as well as the mean-flow forcing, can be modeled by means of the radiation stress.
Featherwork is the working of feathers into a work of art or cultural artifact. This was especially elaborate among the peoples of Oceania and the Americas , such as the Incas and Aztecs . Feathered cloaks and headdresses include the ʻahuʻula capes and mahiole helmets were worn by Hawaiian royalty ; many are now on display at the Bishop ...