Spiders Lure Prey in Crafty Ways PDF

Spiders lure in their MATRICS NO: 214173 STUDENT’S NAME: KASIH HAZURA BINTI MOHD ISKANDAR prey in some very crafty...

Spiders lure in their MATRICS NO: 214173 STUDENT’S NAME: KASIH HAZURA BINTI MOHD ISKANDAR prey in some very crafty ways. Introduction For about 400 million years, Adaptations spiders have been undergoing evolution to increase 1. Looks survivability. Development and a. Mimickry the use of spider’s silk diversify b. Web decorations as plant and insect life did. In 2. Scent this article, spiders not only hunt preys using silk, but spiders also use their looks, Mimickry scent, & touch to trick gullible The crab spider species (Epicadus heterogaster) has evolved invertebrates fall prey to them. to look much like a dainty white flower resting on a leaf. Its abdomen glitters by reflecting the sun, catching the peepers of bees and flies. Objectives Mimickry + Web decorations 1. To investigate examples of This spider (Phrynarachne decipiens) mimics bird two adaptations of spiders to droppings to draw in prey in Malaysia. catch prey which are by looks Lures unsuspecting flies looking to use it as a and scent. source of food or lay their eggs in the poop. 2. To explain the functions of these evolved characteristics. Scent (pheromones) Bolas spiders’ (genus Mastophora) prey are Study on the moths coloration of the webs Moths’ scaly outer layer of the wingskeeps them from sticking to spiderwebs. of Psechrus clavis and Adult female bolas have specialized in luring the presence of male moths by producing the pheromones made by female moths looking to mate. the web dwellers. Once the moth gets closer to look for their 1. The normal web’s prey attraction potential partner, Bolas spiders reel them in rate > blackened webs. with a sticky clump of specialized silk. 2. The average prey attraction rate Discussion [when the spider was present > Light affects spider hunting when the spider was removed.] strategies. Conclusion 3. When the spider was present, More visible to prey in well-lit “The evolutionary driving there was no significant areas. forces behind the various difference in the prey attraction Enhances visual deception architectures of spider rate between normal and tactics. webs have been blackened webs. Helps spiders mimic objects or recognized as pressure 4. Nocturnal web-building spiders behaviors to lure prey. from the foraging use not only body coloration but Nocturnal spiders use vibrant environment and also the visual signal of webs to colors to attract prey at night. predators.” (Blackledge, attract prey at night. Spider web design and decoration Coddington, & Gillespie, attract prey. Patterns like thick white 2003; Blackledge et al., REFERENCE: silk bands or reflective elements 2009) Quaglia, S. (2024) These spiders lure in their prey in some very crafty ways, Animals. make webs more appealing to The discussion https://www.nationalgeographic.com/ani insects. The intricacy of spider web acknowledges that our mals/article/spiders-prey-webs-trap- patterns and decorations results understanding of spider camouflage-mimicry (Accessed: 19 April behavior is still evolving. from evolutionary pressures. 2024).