Comparison of sampling methods

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Comparison of sampling methods Ecosystem and landscape management PD Dr. Udo Bröring By: Indrit Selmani 3514348 Summer Semester 2016 28/06/2016

Table of contents Introduction Sweep-net sampling D-vac sampling WPBS Results Conclusion References

Introduction The reason for comparison between sampling methods Sweep-net sampling D-vac Samples WPBS (Whole-plant-bag sampling)

Sweep-net Sampling The sweep-net Technique Storing Sampling location Figure 1: A single stroke with a sweep-net http://ipm.ncsu.edu/soybeans/Scouting_Soybeans/Soybean_images/fig15.jpg

D-vac sampling What is D-vac? Technique Storing Sampling location Figure 2: D-vac usage in the field http://eorganic.info/sites/eorganic.info/files/u461/elliott%20with%20Dvac.jpg Figure 3: D-vac dimensions and full-out drawing http://www.rinconvitova.com/images/dvac%20model%20122.gif

WPBS Description of the bag Technique of the whole-plant-bag sampling Sampling location Figure 4: Berlese funnel http://www.amnh.org/learn/biodiversity_counts/read_select/ht/berlesefunnel.gif

Results Influence of nature upon sampling methods Efficiency between samples Reference: Byerly et al - A comparison of sampling methods for some arthropod population in cotton

Conclusion Every sampling method has its pros and its cons Every sampling method has its own preferable location, time and storing method The field has to be taken into consideration before sampling Some sampling methods can be more efficient then others depending on the field

References: Byerly et al - A comparison of sampling methods for some arthropod population in cotton

Image sources: Table 1: Byerly et al - A comparison of sampling methods for some arthropod population in cotton Figure 1: http://ipm.ncsu.edu/soybeans/Scouting_Soybeans/Soybean_images/fig15.jpg Figure 2: http://eorganic.info/sites/eorganic.info/files/u461/elliott%20with%20Dvac.jpg Figure 3: http://www.rinconvitova.com/images/dvac%20model%20122.gif Figure 4: http://www.amnh.org/learn/biodiversity_counts/read_select/ht/berlesefunnel.gif

Thank you for your attention! Questions?