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Goliath Beetle

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Hannah Fox

on 7 April 2015

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Transcript of Goliath Beetle

Goliathus - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Goliathus
The Goliath beetles (named after the biblical giant Goliath) are among the largest insects on Earth, if measured in terms of size, bulk and weight. They are...
Evolution of the Goliath Beetle
- Members of the insect order Coleoptera and belongs to
the scarab family.
- The three clades were Geotrupidae, Scarabaeinae and
Dynastinae
-Scarabaeoidea is a diverse lineage of
predominantly plant- and dung-
feeding beetles.
-Evolution of flowering plants helped
drive the diversification of beetles
(breakdown between the herbivore fauna and
the dung feeders).
-A big part of their evolution was the evolution
of their horns.
-The horns arising independently lead Darwin to speculate on the "special tendency" of the scarabs
towards evolution of enlarged horns.
- The horns traditionally resemble the horns of "traditional" horned species.
- Due to this horn speculation, it has recently been proposed that the ancestor to the scarabs may have had both horns and the mechanisms for suppressing horn growth.
Jane Doe
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Ecology and Behavior
goliathecology.com
the relationship between the organism the Goliath Beetle and their environment can be found here.
Life and Reproduction
lifeandreproduction.com
Here is how the Goliath Beetle lives and reproduces, including its life cycle.
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Life and Reproduction

Goliath Beetles undergo metamorphosis consisting of the stages: egg, larva, pupa and adult insect.
As adults, they have a short lifespan, only a few months in the wild
Beetles exhibit
intrasexual selection
: selection competition among members of the same sex (male-male competition). Males have Y shaped horns on their head which they use as a weapon against other males.

- Full-grown male measure between 60-110 mm; weigh anywhere
from 30-45 grams
- Females measure 50-80 mm
- Larval stage they can weigh about 80-100 grams, up to 5 inches
- Two pairs of wings
* the first set acts as a protective layer for their secondary pair of wings and abdomen.
* second pair of wings are used specifically for flying, hidden behind
first layer (elytra)
- Each leg of the beetle is equipped with a pair of sharp claws (tarsi)
- Males have a Y-shaped horn; Females have a wedge-shaped head
- 6 distinct species of goliaths
* Share sharply contrasting, black vertical stripes on the pronotum


Morphology
Diet
- High-protein diet in the larval stage
- Adults eat food sources that are high in
sugar or glucose
-tree sap
-ripe fruit


- Some reports that it eats dung and animals
remains within the tropical forests of Africa
- In captivity it has been known to eat dog and
cat food

Morphology
biologyandorganismmorphology.com
Anatomy. The Y shaped horn. The Goliath beetle is the largest insect in the world in terms of body mass. These monstrous sized ...
Goliathus - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Goliathus
The Goliath beetles (named after the biblical giant Goliath) are among the largest insects on Earth, if measured in terms of size, bulk and weight. They are...
Evolution of the Goliath Beetle
- Members of the insect order Coleoptera and belongs to
the scarab family, which contains more than 30,000 species.
-Scarabaeoidea is a diverse lineage of
predominantly plant- and dung-
feeding beetles. helped
drive the diversification of
-Evolution of flowering plants beetles
(breakdown between the herbivore fauna and
the dung feeders).
-A big part of their evolution was the evolution
of their horns. (which the males have).
- The three clades were Geotrupidae, Scarabaeinae and Dynastinae
-The horns arising independently lead Darwin to speculate on the "special tendency" of the scarabs
towards evolution of enlarged horns.
- The horns traditionally resemble the horns of "traditional" horned species.
-Due to this horn speculation, it has recently been proposed that the ancestor to the scarabs may have had both horns and the mechanisms for suppressing horn growth.

All Goliath species are native to Africa where the tropical rain forest is at its thickest. They are primarily located in central and western equatorial Africa because the warm climate is important to their breeding requirements.
Goliath beetles are the largest beetles on the planet because of their strength: they can lift a load that is 850 times heavier than their own weight and are excellent at flying and climbing trees.
The Goliath has only few enemies such as large birds and venomous snakes.
Goliath Beetle: What Goliath Beetles Eat
dietofthegoliathbeetle.com
The adult beetles eat foods rich in sugar, especially tree sap, but will...
Ecology and Behavior
Works Cited
http://www.pnas.org/content/104/suppl_1/8661/suppl/DC1
http://rspb.royalsocietypublishing.org/content/281/1791/20141470
http://www.naturalworlds.org/goliathus/
http://www.itsnature.org/ground/creepy-crawlies-land/goliath-beetle/
http://www.brighthub.com/environment/science-environmental/articles/123923.aspx

Goliath Beetle
Evolution of the Goliath Beetle
evolutionofthegolith.com
click here to learn about how the Goliath Beetle evolved over time...
Full transcript