Berlese tullgren funnel: Difference between revisions
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==Overview== | ==Overview== | ||
Berlese-Tullgren Funnels are used to extract [[arthropods]] from [[soil]]. The funnel works on the basis that arthropods will turn away from direct light, the Berlese-Tullgren funnel works to force them into a container using heat and light. <ref> “Berlese Funnels - Collecting Methods - Mississippi Entomological Museum Home.” Mississippi Entomological Museum, https://mississippientomologicalmuseum.org.msstate.edu/collecting.preparation.methods/Berlesefunnel.htm. Accessed 30 April 2025. </ref> [[File:tullgren_funnel.jpg|thumb|border|left|Sketch of a Berlese-Tullgren funnel]] | Berlese-Tullgren Funnels, also know and Berlese funnels or Tullgren funnels are used to extract [[arthropods]] from [[soil]]. The funnel works on the basis that arthropods will turn away from direct light, the Berlese-Tullgren funnel works to force them into a container using heat and light. <ref> “Berlese Funnels - Collecting Methods - Mississippi Entomological Museum Home.” Mississippi Entomological Museum, https://mississippientomologicalmuseum.org.msstate.edu/collecting.preparation.methods/Berlesefunnel.htm. Accessed 30 April 2025. </ref> [[File:tullgren_funnel.jpg|thumb|border|left|Sketch of a Berlese-Tullgren funnel]] | ||
The funnel was first described by Italian entomologist, Antonio Berlese. He formed the idea by surrounding a metal funnel in a water jacket heated by a bunsen burner. The heat from the water drove the arthropods down the funnel into a collection tube. This was later developed by arachnologist Albert Tullgren who decided to use an electric lamp to heat the surface of the soil. This allowed more time for the [[insects]] to reach the collection tube before drying out and dying. <ref>“Entomological classics – The Tullgren (Berlese) Funnel | Don't Forget the Roundabouts.” Don't Forget the Roundabouts, 3 May 2016, https://simonleather.wordpress.com/2016/05/03/entomological-classics-the-tullgren-berlese-funnel/. Accessed 30 April 2025.</ref> [[File:Tullgren Funnel BridgewaterStateUniversity.jpg|thumb|right|Current use of a Berlese-Tullgren Funnel at Bridgewater State University]] | The funnel was first described by Italian entomologist, Antonio Berlese. He formed the idea by surrounding a metal funnel in a water jacket heated by a bunsen burner. The heat from the water drove the arthropods down the funnel into a collection tube. This was later developed by arachnologist Albert Tullgren who decided to use an electric lamp to heat the surface of the soil. This allowed more time for the [[insects]] to reach the collection tube before drying out and dying. <ref>“Entomological classics – The Tullgren (Berlese) Funnel | Don't Forget the Roundabouts.” Don't Forget the Roundabouts, 3 May 2016, https://simonleather.wordpress.com/2016/05/03/entomological-classics-the-tullgren-berlese-funnel/. Accessed 30 April 2025.</ref> [[File:Tullgren Funnel BridgewaterStateUniversity.jpg|thumb|right|Current use of a Berlese-Tullgren Funnel at Bridgewater State University]] | ||
Both Berlese funnel and Tullgren funnel are generally interchangable terms, Berlese-Tullgren funnel represents the most modern technique used for research, which is a combination of the two. | Both Berlese funnel and Tullgren funnel are generally interchangable terms, Berlese-Tullgren funnel represents the most modern technique used for research, which is a combination of the two. | ||
Revision as of 08:15, 30 April 2025
Overview
Berlese-Tullgren Funnels, also know and Berlese funnels or Tullgren funnels are used to extract arthropods from soil. The funnel works on the basis that arthropods will turn away from direct light, the Berlese-Tullgren funnel works to force them into a container using heat and light. [1]
The funnel was first described by Italian entomologist, Antonio Berlese. He formed the idea by surrounding a metal funnel in a water jacket heated by a bunsen burner. The heat from the water drove the arthropods down the funnel into a collection tube. This was later developed by arachnologist Albert Tullgren who decided to use an electric lamp to heat the surface of the soil. This allowed more time for the insects to reach the collection tube before drying out and dying. [2]
Both Berlese funnel and Tullgren funnel are generally interchangable terms, Berlese-Tullgren funnel represents the most modern technique used for research, which is a combination of the two.
Composition
The funnel is composed of a container, a funnel, a fine mesh lining, a light source and your soil sample. There are many ways to alternatively make a Berlese Tullgren Funnel as long as the general composition and idea are there.
References
- ↑ “Berlese Funnels - Collecting Methods - Mississippi Entomological Museum Home.” Mississippi Entomological Museum, https://mississippientomologicalmuseum.org.msstate.edu/collecting.preparation.methods/Berlesefunnel.htm. Accessed 30 April 2025.
- ↑ “Entomological classics – The Tullgren (Berlese) Funnel | Don't Forget the Roundabouts.” Don't Forget the Roundabouts, 3 May 2016, https://simonleather.wordpress.com/2016/05/03/entomological-classics-the-tullgren-berlese-funnel/. Accessed 30 April 2025.