Economic important of arthropods

A detail power point presentation on economic important of arthropods

1. E c o nomic i m p ortant o f arthropods - Somnath. k .kamble M s c p a r t 1 G . N . G h a l s a c o l l ege

2. Q u i ck r e v i s e . . A r t h r o poda - ( g r e e k - arthron “ j oint" and po d a s ,"foot" ) G e n e ral c h a r a cter s B i l a t e r a l s y m m etry Jointed appendege Segment ed b o d y C h i t i nous e x o s keleton Highly developed sense organs .

3. E c onomic i m p ortant f i v e c l a s s e s w h i c h a r e e conomical ly important Insects: This includes mosquitoes, cockroaches, ants, flies, bees, moths, grasshoppers, beetles and butterflies Crustaceans ( Sub p h y l um ) : This includes crabs, lobsters, shrimp and barnacles Arachnids: This includes scorpions, spiders and mites Further, a few other classes are diplopods (millipedes) and chilopods (centipedes). IInseInsects: This includes mosquitoes, cockroaches, ants, flies, bees, moths, grasshoppers, beetles and butterflies i cta

4. C l a s s i n s e c t a 1 . h o n e y w h i c h i s u s e a s n u t r i t i v e f o o d , medicine , as s w e e t e n t i n m a n y drink 2 . Honey a c t a s n a t u ral a n t i s eptic 3 . b e e w a x which i s b y p r o d uct o f h o n e y Which u s e f o r m a k i ng c a n d e l s , manufacturing o f v a r n i she s a n d p o l i s h e s 4 . h o n e y b e e a c t a s p o l l i nator which i s b e n e ficial f o r p o l l i n a tion o f p l a n t s 5 . u s e o f r o y a l j e l l y pollens a n d p r o p o l is 1 . H o n e y b e e

5. A n t s Ants are important components of ecosystem and acts as biological indicators. Ants act as decomposers by feeding on organic waste, insects or other dead animals Carpenter ants, which make their nests in dead or diseased wood, considerably accelerate the decomposition process of timber. 5 . a n t s a s l o u s e a s food c a c o o n o f ants use a s bird f o o d 6 . S o i l a r a t i o n

6. S i l k a n d l a c production T h e s i l k wor m and l a c i n s e c t a r e a s l o important b y economic v i e w A s s i l k wor m a r e s e c r e t t h e s i l k which a r e exploited for commercial silk production. Bombyx and Eupterote are silk moths, they are reared in India, China, Japan and Europe f o r s i l k production In Asiatic countries over 25 million kilograms of silk are produced annually. The lac insect, which s e crete lac w h i c h a s l o produce commercia lly Lac is the scarlet resinous secretion of a number of species of lac insects, The l a c i s u s e a s d y e a n d i n wood finish, skin cosmetic and dye for wool and silk. . Lac is used in folk medicine as a hepatoprotective and anti-obesity dru

7. I n s e ct a s p e s t con t r o ller Cockroaches, mites, ticks and all other insects considered as carnivorous, prey on smaller species to maintain ecological balance. Hence, communities that have a good balance of these arthropods tend to have better pest control.

8. C l a s s c r u s t a cea C l a s s c r u s t acea i s most i m p ortant class b y economic view humans consume a large number of crustaceans - especially lobsters, shrimps, prawns, crabs . are form an important part of our diet, and are very nutritious. India’ i s o n 2 n d r a n k i n p r o d u ction o f p r a w n s . (70- 8 c r p e r a n n um ) Crustaceans a s Scavengers Crustaceans, the Food-Chain and the Ecosystem 1 . L o b s t er a n d s h r i mp

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11. In recent years, the spiders’ web was discovered as an additional material w h i c h c a n u s e fishing nets, surgical sutures, and adhesives as they contained natural antiseptics s o t h a t i t c a n u s e f o r m e d i cal p u r p o se spider venom (40,000 different kinds are known) provide chemical models for making new insecticides Spiders are predators, feeding mostly on insects. S o spiders actually benefit humans by keeping some insect populations under control. The tick & mites are medically important mites due to their ability to transmit diseases Scorpions are studied for scientific research most of the universities. T h e scorpion venom is used for pharmacological, Biochemlcal and Immunological researches.

12. C l a s s d i p l o p o d s & c h i l o p o d s Millipedes generally have little impact to human economic Millipedes appear in folklore and traditional medicine around the world. Millipedes have also inspired and played roles in scientific research C h i l o p o d s a r e f e e d o n s l u g , cockroaches , w o r m s

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