Arachnida Jake Reicker Jacqueline Bradbury Brandon Nilsen Josh

Arachnida Jake Reicker, Jacqueline Bradbury, Brandon Nilsen, Josh Cullen

Introduction Ø Phylum: Arthropoda Ø Subphylum: Chelicerata Ø Class: Arachnida Ø Number of Known Families: 648 Ø Order: Ø Acari, Amblypygi, Araneae, Haptopoda, Opiliones, Palpigradi, Phalangiotarbida, Pseudoscorpions, Ricinulei, Schizomida, Scorpiones, Solifugae, Trigonotarbida and Thelyphonida.

Distinguishing Physical Traits Ø 8 Legs in Adult Life Stage Ø Breath by Book Lungs Ø Do not possess jaws, antennae or wings.

Distinguishing Physical Traits Ø Chelicerae & Pedipalps Ø Bodies are in two parts

Behavioural Traits Ø Cannibalism Ø Males give gifts and dance to attract mates Ø Solitary lifestyle Ø Largely inactive, opportunistic eaters

Peacock spider mating dance

Environment Ø Spiders Ø Found on every continent Ø Almost every terrestrial habitat Ø Scorpions Ø Found on all continents (bar Antarctica), though not natively to all. Ø Found in every terrestrial habitat with the exception of boreal habitats.

Environment Ø Ticks & mites Ø Terrestrial & aquatic Ø Widely distributed – Warm, humid climates Ø Mites in the Antarctic Ø Two requirements must be met for an ecosystem to support ticks Ø High host population Ø High humidity Ø Common microclimate features: sandy soil; hardwood trees; rivers; and the presence of deer.

Evolution ØArachnida evolved from the group Chelicerata ØComplex relationship between orders ØFour main categories Stethostomata, Haplocnemata, Acaromorpha & Pantetrapulmonata ØScorpions among first land based animals with other species of arachnids appearing later

Evolutionary Advantages ØArachnids are an extremely robust species due to their evolution ØExoskeleton is strong, lightweight and water proof ØEase of movement ØSensory organs

Life cycle/reproduction

Fun Facts Ø Spiders produce seven kinds of silk - Ranging from sticky silk to trap prey, to super-strong thread for support Ø Scorpions are among the only animals known to survive nuclear exposure and they also glow under UV light Ø Arachnida is a part of the biggest and most diverse phylum; Arthropoda. It consists of ~1. 1 mil species recorded.

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• Clarkson, Jesse. "Evolution and paleontology. " Encyclopedia Britannica Online. Encyclopedia Britannica, n. d. Web. 8 Mar. 2014. <http: //www. britannica. com/EBchecked/topic/529352/scorpion/47768 /Evolution-and-paleontology>. • "Arachnid. " Wikipedia. Wikimedia Foundation, 22 Mar. 2014. Web. 23 Mar. 2014. <http: //en. wikipedia. org/wiki/Arachnid>. • "How Spiders Work. " How. Stuff. Works. N. p. , n. d. Web. 29 Mar. 2014. <http: //animals. howstuffworks. com/arachnids/spider 8. htm • "www. palaeontologyonline. com. "wwwpalaeontologyonlinecom. N. p. , n. d. Web. 30 Mar. 2014. <http: //www. palaeontologyonline. com/articles/2011/fossil-focusarachnida/>. • "10 Cool And Creepy Arachnid Behaviors. " Listverse. N. p. , n. d. Web. 31 Mar. 2014. <http: //listverse. com/2013/12/08/10 -cool-and-creepyarachnid-behaviors/>.

• "SPIDERLINGS. " Spider Facts. N. p. , n. d. Web. 29 Mar. 2014. <http: //www. kidzone. ws/lw/spiders/facts 08. htm>. • "Araneae - spiders. " Araneae - spiders. N. p. , n. d. Web. 29 Mar. 2014. <http: //www. ento. csiro. au/education/allies/araneae. html>. • "Panarthropoda. de - General - Scorpions. " Panarthropoda. de - General - Scorpions. N. p. , n. d. Web. 29 Mar. 2014. <http: //www. panarthropoda. de/sub/allgemeines/paarungskorpioneen. php>. • Gary A. Polis (1990). The Biology of Scorpions. Stanford University Press. ISBN 978 -0 -8047 -1249 -1. • Wall, Richard & David Shearer (2001). "Ticks (Acari)". Veterinary Ectoparasites: Biology, Pathology, and Control. John Wiley & Sons. pp. 5560. ISBN 978 -0 -632 -05618 -7. • http: //journals. cambridge. org/download. php? file=%2 FPOL 39_03 %2 FS 0032247403003097 a. pdf&code=147 a 6 e 441943 f 3396 dc 05 fe 2 f 918880 a