preview

Insect Preservation In Amber

Decent Essays

Insect preservation in Amber
Tree resin has helped entomologist piece together the history of insects. First occurring during the Triassic, coniferous trees produced tremendous amounts of resin to protect against attack by pests and other parasites. The sticky sap like substance would trap organisms that came in contact and eventually engulf them. Over time, the tree resin fossilized and became amber, preserving the trapped life form inside. The encasing of the organism allowed for its preservation (Penny et al. 2013). Pieces of amber show a moment frozen in time and let entomologist witness ancient insects and give a screenshot of their behavior. Therefore, entomology has been able to utilize the amber to study the habits and structures of …show more content…

The fossilization occurs through oxidative processes brought on my conditions such as temperature, pressure and water levels in the geological environment. The longer a sample is buried determines the maturation of an amber sample. Old samples of amber are referred to as copal (Brody 2001). The ages vary between ambers but attempts to date each amber collection have yet to reach a consensus. Ambers are named according to the geographical location in which they were found. The most common types of amber include the Baltic and …show more content…

After her eggs had hatched, she continued to carry her young in a brood chamber on the underside of her belly. The chamber is made by horizontal projection coming off her thoracic legs, and her young would have stayed there until they could fend for themselves (Boucot & Poinar 2010). Today, isopods demonstrate the same maternal care, but without the preservation of amber, the similar behavior would not have been known. Money grasshoppers are another example of a similar behavior caught in amber. These specimens are among the rarest insects to be found in amber. This grasshopper is mobile in the treetop region of a forest but tends to rest in small patches of sunlight down in the shrub. When resting in the bushes, the grasshoppers cross their hind legs. This is a way for the grasshoppers to avoid predators. The hind legs resemble two crossing stems, allowing the grasshoppers to blend in amongst the shrubs. Some grasshoppers have been found preserved in this position (Poinar & Poinar 1999). Grasshoppers have been using their hind legs for camouflage for millions of years. Which implies, the technique must help them avoid predation. Isopods continue to take care of their young and have yet to become extinct. These methods have been successful and will probably still be successful until something drastically and suddenly

Get Access