Study of the Rosalia Longicorn Beetle's Demography and Dispersal
Author Information
Author(s): Drag Lukas, Hauck David, Pokluda Pavel, Zimmermann Kamil, Cizek Lukas
Primary Institution: Faculty of Science, University of South Bohemia, Ceske Budejovice, Czech Republic
Hypothesis
What are the demographic and dispersal characteristics of the endangered Rosalia longicorn beetle?
Conclusion
The Rosalia longicorn beetle exhibits high mobility and a population density of approximately 2000 individuals in the studied area.
Supporting Evidence
- The population density of the Rosalia longicorn was estimated to be between 42 and 84 adult beetles per hectare.
- The beetle demonstrated marked mobility, with dispersal distances recorded up to 1.6 km.
- The study found a total of 595 marked individuals in 2008 and 375 in 2009.
Takeaway
Scientists studied a rare beetle to see how many there are and how far they can move. They found a lot of them in one place and that they can travel quite far.
Methodology
A mark-recapture study was conducted to estimate the population size and dispersal ability of the Rosalia longicorn beetle.
Potential Biases
Potential bias due to the limited number of sites and environmental factors affecting beetle movement.
Limitations
The study was limited to three hills and may not represent the entire range of the species.
Participant Demographics
The study focused on the Rosalia longicorn beetle population in the Ralska Upland, Czech Republic.
Statistical Information
P-Value
p<0.001
Confidence Interval
95% C.I. for mean residence time: 3.0–6.1 days for females, 3.8–5.9 days for males.
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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