Презентация на тему: COLEOPTERA

COLEOPTERA
Subject
Type of sediments
Time period
What could be defined
Reconstructions
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Первый слайд презентации: COLEOPTERA

Saint-Petersburg State University Institute of Earth sciences CORELIS Saint-Petersburg 2018 Volkova D.D, student of 1 master course

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Слайд 2: Subject

Coleopteran - any member of the insect order Coleoptera, consisting of the beetles and weevils. It is the largest order of insects.

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Слайд 3: Type of sediments

Generally coleopteras yield more terrestrial than aquatic specimens. This is probably due to a combination of factors, including greater species diversity in terrestrial habitats, and the concentration of wind-blown specimens in catchment basins. The ground beatle, showing parts of exoskeleton commonly used for fossil indication

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Слайд 4: Time period

The remains of beetles are often abundant and well-preserved in Quaternary lacustrine sediments.

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Слайд 5: What could be defined

- ancient substrates - water temperature - air temperature - regional vegetation (both aquatic and terrestrial ) - sensitive to the trophic status and pH of the water

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Слайд 6: Reconstructions

The principal method of paleotemperature estimation from fossil beetle MCR method (Atkinson et al., 1986). Geographical overlap method (Atkinson et al., 1986). R egional examples from Europe serve to illustrate the quality and kinds of paleoenvironmental reconstructions that have been drawn from fossil insect assemblages from lake sediments.

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Последний слайд презентации: COLEOPTERA: Thank you for attention!

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