Group 4 Araneae Spring 2016

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Araneae

Morphospecies 1

Location of collection: (Lat: 38° 58'58.43N Long: 84° 00'21.33W)

Date of collection: 3/6/2016

Shannon-Wiener Index of Biodiversity: H'= 2.83

Photo:

1Simmytat.jpg


Collectors:

  • Simone Meadows
  • Levi Mang
  • Izzi Sloop
  • Daisy Santana

Distinguishing morphological features of Order:

  • chelicerae mouthpart
  • pedicel attachment
  • Dorsal and ventral plates

Ecological Importance:

  • Araneae are important predators of insects and "pest" species. Araneae, spiders, are major predators of diptera, collemobola and hymenoptera species. Spiders are regulators of insect populations.

Economic/agricultural/human health importance:

  • Araneae provide silk thread that can be harnessed and used for scientific study of resistance and stress; scientist assess the fortitude of the threads and work to mimick the thread's strength. Spiders are considered a biological tool used in agricultural practices to aid in crop protection from pest species.

Morphospecies 2

Location of collection: (Lat: 38° 58'58.43N Long: 84° 00'21.33W)

Date of collection: 3/6/2016

Shannon-Wiener Index of Biodiversity: H' = 2.83

Photo:

Simmyarachne.jpg


Collectors:

  • Simone Meadows
  • Levi Mang
  • Izzi Sloop
  • Daisy Santana

Distinguishing morphological features of Order:

  • Soft abdomen
  • Abdomen contains majority of primary organs
  • Book lungs

Ecological Importance:

  • Araneae are important predators of insects and "pest" species. Araneae, spiders, are major predators of diptera, collemobola and hymenoptera species. Spiders are regulators of insect populations.

Economic/agricultural/human health importance:

  • Araneae provide silk thread that can be harnessed and used for scientific study of resistance and stress; scientist assess the fortitude of the threads and work to mimick the thread's strength. Spiders are considered a biological tool used in agricultural practices to aid in crop protection from pest species.

Morphospecies 3 (Isabel Sloop)


Location of collection: GGC Site 2 = (Lat: 38° 58'58.43N Long: 84° 00'21.33W)

Date of collection: March 2016

Shannon-Wiener Index of Biodiversity: H'= 2.83

Photo: Arachnida1-1.jpg

Distinguishing morphological features of Order:

- Two distinct body sections, the cephalothorax, and the head. There are eight legs, and eight eyes.

Life cycle:

- The male will place a spermaphore in the female, loosing his pedipalp appendage in the process, and then the female will fertilize her 100- 400 eggs, and then they will hatch and disperse.

Sexual dimorphism:

- Females tend to be  twice the size of the males, but coloration can differ, or not depending on the species.

What it eats:

- They feed on insects and arthropods found within their habitat.

Habitat:

- Dark spaces, warm and moist usually, the ground and leaf litter being an excellent place.

Ecological Importance:

- They control the number of insects and other arthropods, including their own kind. Allowing the balance between the different orders.

'Morphospecies 4


Location of collection: GGC Site 2 = (Lat: 38° 58'58.43N Long: 84° 00'21.33W)

Date of collection: March 2016

Shannon-Wiener Index of Biodiversity: H'= 2.83

Arc12.jpg

Distinguishing morphological features of Order:

- Two distinct body sections, the cephalothorax, and the head. There are eight legs, and eight eyes, light brown body 

Life cycle:

- The male will place a spermaphore in the female, loosing his pedipalp appendage in the process, and then the female will fertilize her 100- 400 eggs, and then they will hatch and disperse.

Sexual dimorphism:

- Females tend to be  twice the size of the males, but coloration can differ, or not depending on the species.

What it eats:

- They feed on insects and arthropods found within their habitat.

Habitat:

- Dark spaces, warm and moist usually, the ground and leaf litter being an excellent place.

Ecological Importance:

- They control the number of insects and other arthropods, including their own kind. Allowing the balance between the different orders.
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