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A rachnida. Jake Reicker , Jacqueline Bradbury, Brandon Nilsen , Josh Cullen . Introduction. Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Number of Known F amilies: 648 Order:

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jake reicker jacqueline bradbury brandon nilsen josh cullen

Arachnida

Jake Reicker, Jacqueline Bradbury, Brandon Nilsen, Josh Cullen

introduction
Introduction
  • Phylum: Arthropoda
  • Subphylum: Chelicerata
  • Class: Arachnida
  • Number of Known Families: 648
  • Order:
    • Acari, Amblypygi, Araneae, Haptopoda, Opiliones, Palpigradi, Phalangiotarbida, Pseudoscorpions, Ricinulei, Schizomida, Scorpiones, Solifugae, Trigonotarbida and Thelyphonida.
distinguishing physical traits
Distinguishing Physical Traits
  • 8 Legs in Adult Life Stage
  • Breath by Book Lungs
  • Do not possess jaws, antennae or wings.
distinguishing physical traits1
Distinguishing Physical Traits
  • Chelicerae & Pedipalps
  • Bodies are in two parts
behavioural traits
Behavioural Traits
  • Cannibalism
  • Males give gifts and dance to attract mates
  • Solitary lifestyle
  • Largely inactive, opportunistic eaters
environment
Environment
  • Spiders
    • Found on every continent
    • Almost every terrestrial habitat
  • Scorpions
    • Found on all continents (bar Antarctica), though not natively to all.
    • Found in every terrestrial habitat with the exception of boreal habitats.
environment1
Environment
  • Ticks & mites
    • Terrestrial & aquatic
    • Widely distributed – Warm, humid climates
    • Mites in the Antarctic
    • Two requirements must be met for an ecosystem to support ticks
      • High host population
      • High humidity
    • Common microclimate features: sandy soil; hardwood trees; rivers; and the presence of deer.
evolution
Evolution
  • Arachnida evolved from the group Chelicerata
  • Complex relationship between orders
  • Four main categories Stethostomata, Haplocnemata, Acaromorpha & Pantetrapulmonata
  • Scorpions among first land based animals with other species of arachnids appearing later
evolutionary advantages
Evolutionary Advantages
  • Arachnids are an extremely robust species due to their evolution
  • Exoskeleton is strong, lightweight and water proof
  • Ease of movement
  • Sensory organs
fun facts
Fun Facts
  • Spiders produce seven kinds of silk - Ranging from sticky silk to trap prey, to super-strong thread for support
  • Scorpions are among the only animals known to survive nuclear exposure and they also glow under UV light
  • Arachnida is a part of the biggest and most diverse phylum; Arthropoda. It consists of ~1.1mil species recorded.
sources
Sources

Dunlop, Jason A. "Fossil Focus: Arachnida." www.palaeontologyonline.com. N.p., 1 Dec. 2011. Web. 01 Apr. 2014.

Evans, Arthur V., Rosser W. Garrison, Neil Schlager, and Michael Hutchins. "Arachnida." Grzimeks' Animal Life Encyclopedia. Detroit: Thomson-Gale, 2004. 333-37. Print.

Holmes, Thom. "The First Land Animals." March onto Land: The Silurian Period to the Middle Triassic Epoch. New York: Chelsea House, 2008. 74-78. Google Books. Google. Web.

Underwood, D.L.A. "Overview of the Class Arachnida." General Entomology. Longbeach. 27 Mar. 2014. Reading.

slide16

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." HowStuffWorks. N.p., n.d. Web. 29 Mar. 2014. <http://animals.howstuffworks.com/arachnids/spider8.htm
  • "www.palaeontologyonline.com."wwwpalaeontologyonlinecom. N.p., n.d. Web. 30 Mar. 2014. <http://www.palaeontologyonline.com/articles/2011/fossil-focus-arachnida/>.
  • "10 Cool And Creepy Arachnid Behaviors." Listverse. N.p., n.d. Web. 31 Mar. 2014. <http://listverse.com/2013/12/08/10-cool-and-creepy-arachnid-behaviors/>.
slide17

"SPIDERLINGS." Spider Facts. N.p., n.d. Web. 29 Mar. 2014. <http://www.kidzone.ws/lw/spiders/facts08.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.ISBN978-0-8047-1249-1.
  • Wall, Richard & David Shearer (2001). "Ticks (Acari)". Veterinary Ectoparasites: Biology, Pathology, and Control. John Wiley & Sons. pp. 55-60. ISBN 978-0-632-05618-7.
  • http://journals.cambridge.org/download.php?file=%2FPOL%2FPOL39_03%2FS0032247403003097a.pdf&code=147a6e441943f3396dc05fe2f918880a