Tag: environment
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Ecological Factor: Light
Introduction Light is a significant ecological factor. Quality (wavelength or colour), duration (length of day) and intensity (energy input or actual intensity measured in gram calories) of light all influence plants and animals in various ways. Both animals and plants respond to different wavelengths of light. Colour vision occurs in majority of animals including arthropods,…
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Ecosystem (Introduction)
Introduction Ecosystem = Ecological System (Eco = Environment; System = Interacting & interdependent complex) ‘Ecosystem’ term was first used by A.G. Tansley (1935), describing a natural unit consisting of both living & non- living parts, which interact, forming a stable system. Fundamental concepts of ecosystem include… Energy flow through food chains or food webs. Nutrient…